iup-stack/iup/srcmglplot/iup_mglplot.cpp

/*
* IupMglPlot component
*
* Description : A component, derived from MathGL and IupGLCanvas
*      Remark : Depend on libs IUP, IUPGL, OpenGL
*/

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <ctype.h>
#include <float.h>

#include "iup.h"
#include "iupcbs.h"
#include "iupkey.h"
#include "iupgl.h"

#include "iup_mglplot.h"

#include "iup_assert.h"
#include "iup_class.h"
#include "iup_register.h"
#include "iup_object.h"
#include "iup_attrib.h"
#include "iup_str.h"
#include "iup_drvfont.h"
#include "iup_stdcontrols.h"
#include "iup_array.h"
#include "iup_childtree.h"

#ifdef WIN32
#include <windows.h>
#endif
#include <GL/gl.h>

#pragma warning(push, 0)
#include "mgl2/mgl.h"
#pragma warning(pop)


enum {IUP_MGLPLOT_BOTTOMLEFT, IUP_MGLPLOT_BOTTOMRIGHT, IUP_MGLPLOT_TOPLEFT, IUP_MGLPLOT_TOPRIGHT};

#define MAX_FONTSTYLE 32 // Same as MathGL


typedef struct _IdataSet
{
  char dsLineStyle;
  int dsLineWidth;
  bool dsShowMarks;
  char dsMarkStyle;
  double dsMarkSize;
  bool dsShowValues;
  char* dsMode;
  char* dsLegend;
  mglColor dsColor;
  Iarray* dsNames;  /* optional names used in ticks when in 1D */

  int dsDim;     /* Dimension of the data: 1D, 2D or 3D */
  mglData* dsX;  /* Linear (dsDim=1,2,3), Planar (dsDim=1) or Volumetric (dsDim=1) */
  mglData* dsY;  /* Linear Only (dsDim=2,3) */
  mglData* dsZ;  /* Linear Only (dsDim=3) */
  int dsCount;
} IdataSet;

typedef struct _Iaxis
{
  mglColor axColor;
  double axOrigin;
  char* axScale;
  bool axShow, axShowArrow;

  int axLabelPos;
  char axLabelFontStyle[MAX_FONTSTYLE];
  double axLabelFontSizeFactor;
  bool axLabelRotation;

  char axTickFontStyle[MAX_FONTSTYLE];
  double axTickFontSizeFactor;
  bool axTickShowValues, axTickShow, 
       axTickAutoSpace, axTickAutoSize;
  double axTickMinorSizeFactor, axTickMajorSize;          
  int axTickMinorDivision;
  double axTickMajorSpan;
  bool axTickValuesRotation;

  bool axReverse;
  double axMax, axMin;
  bool axAutoScaleMax, axAutoScaleMin;
} Iaxis;

struct _IcontrolData
{
  iupCanvas canvas;     /* from IupCanvas (must reserve it)  */

  mglGraph* mgl;

  /* Control */
  int w, h;
  double dpi;
  bool redraw;
  bool opengl;

  /* Obtained from FONT */
  double FontSizeDef;
  char FontStyleDef[MAX_FONTSTYLE];
  
  /* Global */
  bool transparent;
  double alpha;
  mglColor bgColor, fgColor;

  /* Title */
  mglColor titleColor;
  char titleFontStyle[MAX_FONTSTYLE];
  double titleFontSizeFactor;

  /* Axes */
  Iaxis axisX, axisY, axisZ;

  /* Interaction */
  double last_x, last_y;  // Last Mouse Position
  double x1, x2, y1, y2;  // Zoom+Pan
  double rotX, rotZ, rotY;  // Rotate (angle in degrees)

  /* Box */
  bool Box, boxTicks;
  mglColor boxColor;

  /* Legend */
  bool legendShow, legendBox;
  mglColor legendColor;
  int legendPosition;
  char legendFontStyle[MAX_FONTSTYLE];
  double legendFontSizeFactor;

  /* Grid */
  mglColor gridColor;
  char* gridShow;
  char gridLineStyle;

  /* Dataset */
  int dataSetCurrent;
  int dataSetCount, dataSetMaxCount;
  IdataSet* dataSet;
};


/******************************************************************************
 Useful Functions
******************************************************************************/

// Quantize 0-1 values into 0-255.
inline unsigned char iQuant(const double& value)
{
  if (value >= 1.0) return 255;
  if (value <= 0.0) return 0;
  return (unsigned char)(value*256.0);
}                               

// Reconstruct 0-255 values into 0-1.
inline float iRecon(const unsigned char& value)
{
  if (value <= 0) return 0.0f;
  if (value >= 255) return 1.0f;
  return ((float)value + 0.5f) / 256.0f;
}

inline void iSwap(double& a, double& b)
{
  double tmp = a;
  a = b;
  b = tmp;
}

static char* iMglPlotDefaultLegend(int ds)
{
  char legend[50];
  sprintf(legend, "plot %d", ds);
  return iupStrDup(legend);
}

static void iMglPlotSetDsColorDefault(mglColor &color, int index)
{
  switch(index)
  {
    case 0: color.Set(1, 0, 0); break;
    case 1: color.Set(0, 1, 0); break;
    case 2: color.Set(0, 0, 1); break;
    case 3: color.Set(0, 1, 1); break;
    case 4: color.Set(1, 0, 1); break;
    case 5: color.Set(1, 1, 0); break;
    case 6: color.Set(0.5f, 0, 0); break;
    case 7: color.Set(0, 0.5f, 0); break;
    case 8: color.Set(0, 0, 0.5f); break;
    case 9: color.Set(0, 0.5f, 0.5f); break;
    case 10: color.Set(0.5f, 0, 0.5f); break;
    case 11: color.Set(0.5f, 0.5f, 0); break;
    default: color.Set(0, 0, 0); break;
  }
}

static void iMglPlotDataSetDefaults(Ihandle* ih, IdataSet* ds, int ds_index)
{
  // Can NOT use memset here

  ds->dsLineStyle  = '-';  // "CONTINUOUS"
  ds->dsLineWidth  = 1;
  ds->dsMarkStyle  = 'x';  // "X"
  ds->dsMarkSize   = 1.0;
  ds->dsShowMarks = false;
  ds->dsShowValues = false;
  ds->dsMode = iupStrDup("LINE");
  ds->dsLegend = iMglPlotDefaultLegend(ds_index);

  int c = 0, i;
  mglColor color;
  do
  {
    iMglPlotSetDsColorDefault(color, c);

    for (i = 0; i < ih->data->dataSetCount; i++)
    {
      if (ih->data->dataSet[i].dsColor == color)
        break;
    }

    if (i == ih->data->dataSetCount)
      break;

    c++;
  } while (c < 12);

  ds->dsColor = color;
}

static void iMglPlotResetInteraction(Ihandle *ih)
{
  ih->data->x1 = 0.0;  ih->data->y1 = 0.0;
  ih->data->x2 = 1.0;  ih->data->y2 = 1.0;

  ih->data->last_x = 0.0;
  ih->data->last_y = 0.0;

  ih->data->rotX = 0.0;   ih->data->rotZ = 0.0;   ih->data->rotY = 0.0;
}

static void iMglPlotResetAxis(Iaxis& axis)
{
  memset(&axis, 0, sizeof(Iaxis));

  axis.axLabelFontSizeFactor = 0.8;
  axis.axTickFontSizeFactor = 0.8;

  axis.axColor.Set(NAN, NAN, NAN);

  axis.axAutoScaleMin = true;
  axis.axAutoScaleMax = true;
  axis.axMin = -1;
  axis.axMax = 1;
  axis.axShow = true;
  axis.axShowArrow = true;
  axis.axLabelRotation = true;
  axis.axOrigin = NAN;

  axis.axTickShow = true;
  axis.axTickShowValues = true;
  axis.axTickValuesRotation = true;
  axis.axTickAutoSpace = true;
  axis.axTickAutoSize = true;
  axis.axTickMinorSizeFactor = 1.0;
  axis.axTickMajorSize = 0.02;
  axis.axTickMinorDivision = 5;
  axis.axTickMajorSpan = -5;
}

static void iMglPlotReset(Ihandle* ih)
{
  // Can NOT use memset here

  ih->data->legendPosition = IUP_MGLPLOT_TOPRIGHT;
  ih->data->legendBox = true;
  ih->data->legendShow = false;
  ih->data->Box = false;
  ih->data->boxTicks = true;
  ih->data->gridLineStyle = '-';
  ih->data->gridShow = NULL;

  ih->data->alpha = 0.5;
  ih->data->transparent = false;

  ih->data->titleFontStyle[0] = 0;
  ih->data->legendFontStyle[0] = 0;
  ih->data->legendFontSizeFactor = 1.0;
  ih->data->titleFontSizeFactor = 1.0;

  ih->data->bgColor.Set(1, 1, 1);
  ih->data->fgColor.Set(0, 0, 0);
  ih->data->gridColor.Set(iRecon(200), iRecon(200), iRecon(200));
  ih->data->titleColor.Set(NAN, NAN, NAN);
  ih->data->legendColor.Set(NAN, NAN, NAN);
  ih->data->boxColor.Set(NAN, NAN, NAN);

  iMglPlotResetAxis(ih->data->axisX);
  iMglPlotResetAxis(ih->data->axisY);
  iMglPlotResetAxis(ih->data->axisZ);

  ih->data->axisY.axTickValuesRotation = false;

  /* Interaction default values */
  iMglPlotResetInteraction(ih);
}

static bool iMglPlotIsPlanarOrVolumetricData(IdataSet* ds)
{
  return (ds->dsDim == 1 && (ds->dsX->ny>1 || ds->dsX->nz>1));
}

static bool iMglPlotIsPlanarData(IdataSet* ds)
{
  return (ds->dsDim == 1 && ds->dsX->ny>1 && ds->dsX->nz==1);
}

static bool iMglPlotIsVolumetricData(IdataSet* ds)
{
  return (ds->dsDim == 1 && ds->dsX->nz>1);
}

static bool iMglPlotIsView3D(Ihandle* ih)
{
  int i;
  for (i=0; i< ih->data->dataSetCount; i++)
  {
    IdataSet* ds = &ih->data->dataSet[i];
    if ((ds->dsDim == 1 && (ds->dsX->ny>1 || ds->dsX->nz>1)) ||  // Planar or Volumetric
        ds->dsDim == 3)  // 3D data
    {
      if (!iupStrEqualNoCase(ds->dsMode, "PLANAR_DENSITY") &&
          !iupStrEqualNoCase(ds->dsMode, "PLANAR_GRADIENTLINES"))
        return true;
    }
  }

  return false;
}

static char* iMglPlotGetTexFontName(const char* typeface)
{
  if (iupStrEqualNoCase(typeface, "sans") ||
      iupStrEqualNoCase(typeface, "helvetica") ||
      iupStrEqualNoCase(typeface, "arial"))
    return "heros";
  if (iupStrEqualNoCase(typeface, "monospace") ||
      iupStrEqualNoCase(typeface, "courier") ||
      iupStrEqualNoCase(typeface, "courier new"))
    return "cursor";
  if (iupStrEqualNoCase(typeface, "serif") ||
      iupStrEqualNoCase(typeface, "times") ||
      iupStrEqualNoCase(typeface, "times new roman"))
    return "termes";
  return NULL;
}

static void iMglPlotConfigFontDef(Ihandle* ih, mglGraph *gr, const char* font)
{
  int size = 0, i = 0;
  int is_bold = 0,
    is_italic = 0, 
    is_underline = 0,
    is_strikeout = 0;
  char typeface[1024];
  
  if (!iupGetFontInfo(font, typeface, &size, &is_bold, &is_italic, &is_underline, &is_strikeout))
    return;

  ih->data->FontStyleDef[i++] = ':';  // color separator

  if (is_bold && is_italic)
  {
    ih->data->FontStyleDef[i++] = 'b';
    ih->data->FontStyleDef[i++] = 'i';
  }
  else if (is_bold)
  {
    ih->data->FontStyleDef[i++] = 'b';
  }
  else if (is_italic)
  {
    ih->data->FontStyleDef[i++] = 'i';
  }
  else
  {
    ih->data->FontStyleDef[i++] = 'r';
  }

  if (is_underline)
    ih->data->FontStyleDef[i++] = 'u';

  if (is_strikeout)
    ih->data->FontStyleDef[i++] = 'o';

  ih->data->FontStyleDef[i] = 0;

  if (size < 0) 
    size = -size;
  else 
    size = (int)((size*ih->data->dpi)/72.0);   //from points to pixels

  // Smaller than the MathGL default (4)
  ih->data->FontSizeDef = 3.5;
  gr->SetFontSize(ih->data->FontSizeDef);

  char *path = getenv("IUP_MGLFONTS");
  if (!path) 
    path = IupGetGlobal("MGLFONTS");

  if (!iupStrEqualNoCase(typeface, iupAttribGetStr(ih, "_IUP_MGL_FONTNAME")) ||
      !iupStrEqualNoCase(path, iupAttribGetStr(ih, "_IUP_MGL_FONTPATH")))
  {
    const char* fontname = iMglPlotGetTexFontName(typeface);
    if (!fontname)
      fontname = typeface;
    gr->LoadFont(fontname, path);  // Load MathGL VFM fonts

    iupAttribSetStr(ih, "_IUP_MGL_FONTNAME", typeface);
    iupAttribSetStr(ih, "_IUP_MGL_FONTPATH", path);
  }
}

static double iMglPlotGetAttribDoubleNAN(Ihandle* ih, const char* name)
{
  double val = NAN;
  iupStrToDouble(iupAttribGet(ih, name), &val);
  return val;
}

static void iMglPlotAddStyleLine(char* style, char line_style, int line_width)
{
  style += strlen(style); // Skip previous configuration

  *style++ = line_style;

  if (line_width < 1) line_width = 1;
  if (line_width > 9) line_width = 9;
  *style++ = (char)('0' + line_width);

  *style = 0;
}

static char iMglPlotFindColor(const mglColor& c1)
{
  int i;

  /* Search in the pre-defined MathGL Color Ids */
	for(i=0; mglColorIds[i].id; i++)
  {
    if (c1 == mglColorIds[i].col)
      return mglColorIds[i].id;
  }

  return 0;
}

static void iMglPlotAddStyleColor(Ihandle* ih, char* style, mglColor color)
{
  style += strlen(style); // Skip previous configuration

  // Check for NAN values and replace by default
  if (mgl_isnan(color.r) || mgl_isnan(color.g) || mgl_isnan(color.b))
    color = ih->data->fgColor;

  // Check for a more compact representation
  char id = iMglPlotFindColor(color);
  if (id)
  {
    *style++ = id;
    *style = 0;
  }
  else
  {
    if (color.a == 1)
      sprintf(style, "{x%02X%02X%02X}", (int)iQuant(color.r), (int)iQuant(color.g), (int)iQuant(color.b));
    else
      sprintf(style, "{x%02X%02X%02X%02X}", (int)iQuant(color.r), (int)iQuant(color.g), (int)iQuant(color.b), (int)iQuant(color.a));
  }
}

static int iMglPlotAddStyleFont(char* style, const char* value)
{
  if (!value || value[0]==0)
    return 0;

  style += strlen(style); // Skip previous configuration
  char* old_style = style;

  if (iupStrCompareFind(value, "PLAIN", 0, 0) ||
      iupStrCompareFind(value, "REGULAR", 0, 0))
  {
    *style++ = 'r';
    *style = 0;
  }
  else
  {
    if (iupStrCompareFind(value, "BOLD", 0, 0))
    {
      *style++ = 'b';
      *style = 0;
    }

    if (iupStrCompareFind(value, "ITALIC", 0, 0) ||
      iupStrCompareFind(value, "OBLIQUE", 0, 0))
    {
      *style++ = 'i';
      *style = 0;
    }
  }

  if (iupStrCompareFind(value, "WIRED", 0, 0))
  {
    *style++ = 'w';
    *style = 0;
  }

  if (iupStrCompareFind(value, "UNDERLINE", 0, 0))
  {
    *style++ = 'u';
    *style = 0;
  }

  if (iupStrCompareFind(value, "STRIKEOUT", 0, 0) ||
      iupStrCompareFind(value, "OVERLINE", 0, 0))
  {
    *style++ = 'o';
    *style = 0;
  }

  if (iupStrCompareFind(value, "LEFT", 0, 0))
  {
    *style++ = 'L';
    *style = 0;
  }
  else if (iupStrCompareFind(value, "CENTER", 0, 0))
  {
    *style++ = 'C';
    *style = 0;
  }
  else if (iupStrCompareFind(value, "RIGHT", 0, 0))
  {
    *style++ = 'R';
    *style = 0;
  }

  if (old_style != style)
    return 1;
  else
    return 0;
}

static void iMglPlotAddStyleMark(char* style, char markstyle)
{
  style += strlen(style); // Skip previous configuration

  // Fix mark codes
  if (markstyle == 'O' || markstyle == 'S' || markstyle == 'D' ||
      markstyle == '^' || markstyle == 'V' || markstyle == '<' || markstyle == '>')
  {
    *style++ = '#';   // Conflict with datagrid, can not use these marks
    *style++ = (char)tolower(markstyle);
  }
  else
    *style++ = markstyle;

  *style = 0;
}

static void iMglPlotConfigFont(Ihandle* ih, mglGraph *gr, const mglColor* color, const char* fontstyle, double fontsizefactor)
{
  char font[64] = "";

  if (color)
    iMglPlotAddStyleColor(ih, font, *color);

  strcat(font, ":");

  if (fontstyle[0] != 0)
    strcat(font, fontstyle);
  else
    strcat(font, ih->data->FontStyleDef);

  gr->SetFontDef(font);

  gr->SetFontSize(fontsizefactor*ih->data->FontSizeDef);
}

static void iMglPlotConfigDataSetLineMark(IdataSet* ds, mglGraph *gr, char* style)
{
  iMglPlotAddStyleLine(style, ds->dsLineStyle, ds->dsLineWidth);

  if (ds->dsShowMarks)
  {
    iMglPlotAddStyleMark(style, ds->dsMarkStyle);

    gr->SetMarkSize(ds->dsMarkSize);
  }
}

static void iMglPlotConfigAxisTicks(Ihandle* ih, mglGraph *gr, char dir, const Iaxis& axis, double min, double max)
{
  if (!axis.axTickShow)
  {
    gr->SetTicks(dir, 0, 0);
    return;
  }

  //Set Scale only if ticks are enabled
  if (axis.axScale)  // Logarithm Scale
  {
    gr->SetTicks(dir, 0, 0);  // Disable normal ticks, logarithm ticks will be done
  }
  else  
  {
    // step for axis ticks (if positive) or 
    // it's number on the axis range (if negative).
    double step = -5;
    int numsub = 0;  // Number of axis submarks

    if (axis.axTickAutoSpace)
    {
      // Copied from MathGL AdjustTicks internal function
      // TODO: improve autoticks computation
      mreal n, d = fabs(max-min);
      n = floor(log10(d));  
      d = floor(d*pow(10,-n));
      step = pow(10,n);
      if (d<4)
      {
        step *= 0.5;
        numsub = 4;
      }
      else if(d<7)
        numsub = 4;
      else
      {
        step *= 2;
        numsub = 3;
      }
    }
    else
    {
      numsub = axis.axTickMinorDivision-1;
      step = axis.axTickMajorSpan;
    }

    gr->SetTicks(dir, step, numsub);
  }

  // Setting the template, switches off automatic ticks tuning
  char attrib[16] = "AXS_?TICKFORMAT";
  attrib[4] = dir;
  iupStrUpper(attrib, attrib);
  char* format = iupAttribGetStr(ih, attrib);
  if (format && axis.axTickShowValues)
  {
    if (dir == 'x') gr->SetTickTempl('x', format);
    if (dir == 'y') gr->SetTickTempl('y', format);
    if (dir == 'z') gr->SetTickTempl('z', format);
    if (dir == 'c') gr->SetTickTempl('c', format);
  }
}

static void iMglPlotConfigScale(Iaxis& axis, double& min, double& max)
{
  if (!axis.axAutoScaleMax)
    max = axis.axMax;
  if (!axis.axAutoScaleMin)
    min = axis.axMin;

  if (axis.axScale)  // Logarithm Scale
  {
    if (min < 0)
      min = 0;

    if (max < 0)
      max = 0;
  }

  if (axis.axReverse)
    iSwap(min, max);

  if (axis.axAutoScaleMax)
    axis.axMax = max;  // Update the attribute value
  if (axis.axAutoScaleMin)
    axis.axMin = min;  // Update the attribute value
}

static void iMglPlotFindMinMaxValues(mglData& ds_data, bool add, double& min, double& max)
{
  int i, count = ds_data.nx*ds_data.ny*ds_data.nz;
  double* data = ds_data.a;

  for (i = 1; i < count; i++, data++)
  {
    if (mgl_isnan(*data))
      continue;

    if (!add)  // first valid found
    {
      min = *data;
      max = *data;
      add = true;
    }
    else
    {
      min = min<*data ? min: *data;
      max = max>*data ? max: *data;
    }
  }
}

static void iMglPlotConfigAxesRange(Ihandle* ih, mglGraph *gr)
{
  int i;
  mglPoint Min(ih->data->axisX.axMin, ih->data->axisY.axMin, ih->data->axisZ.axMin);
  mglPoint Max(ih->data->axisX.axMax, ih->data->axisY.axMax, ih->data->axisZ.axMax);

  if (ih->data->axisX.axAutoScaleMax || ih->data->axisX.axAutoScaleMin ||
      ih->data->axisY.axAutoScaleMax || ih->data->axisY.axAutoScaleMin ||
      ih->data->axisZ.axAutoScaleMax || ih->data->axisZ.axAutoScaleMin)
  {
    for(i = 0; i < ih->data->dataSetCount; i++)
    {
      IdataSet* ds = &ih->data->dataSet[i];
      bool add = i==0? false: true;
      mglPoint oldMin = Min;
      mglPoint oldMax = Max;

      if (iupStrEqualNoCase(ds->dsMode, "RADAR"))
        add = false;

      if (ds->dsDim == 1)
      {
        if (ds->dsX->ny>1 || ds->dsX->nz>1)  /* Planar or Volumetric data */
        {
          if (ih->data->axisX.axAutoScaleMax || ih->data->axisX.axAutoScaleMin)
          {
            Min.x = -1.0;
            Max.x = +1.0;
          }
          if (ih->data->axisY.axAutoScaleMax || ih->data->axisY.axAutoScaleMin)
          {
            Min.y = -1.0;
            Max.y = +1.0;
          }
          if (ih->data->axisZ.axAutoScaleMax || ih->data->axisZ.axAutoScaleMin)
          {
            Min.z = -1.0;
            Max.z = +1.0;
          }
        }
        else /* 1D Linear data */
        {
          /* the data will be plotted as Y, X will be 0,1,2,3,... */
          if (ih->data->axisX.axAutoScaleMax || ih->data->axisX.axAutoScaleMin)
          {
            Min.x = 0;
            double ds_max = (mreal)(ds->dsCount-1);
            Max.x = i==0? ds_max: (ds_max>Max.x? ds_max: Max.x);
          }
          if (ih->data->axisY.axAutoScaleMax || ih->data->axisY.axAutoScaleMin)
            iMglPlotFindMinMaxValues(*ds->dsX, add, Min.y, Max.y);

          if (iupStrEqualNoCase(ds->dsMode, "BARHORIZONTAL"))
          {
            iSwap(Min.x, Min.y);
            iSwap(Max.x, Max.y);
          }
          else if (iupStrEqualNoCase(ds->dsMode, "RADAR"))
          {
            double r = iupAttribGetDouble(ih, "RADARSHIFT");   // Default -1
          	if(r<0)	r = (Min.y<0)? -Min.y:0;
            double rmax = fabs(Max.y)>fabs(Min.y)?fabs(Max.y):fabs(Min.y);
            double min = -(r + rmax);
            double max =  (r + rmax);
            if (i==0)
            {
              Min.y = Min.x = min;
              Max.y = Max.x = max;
            }
            else
            {
              if (min < oldMin.x)
                Min.y = Min.x = min;
              else
                Min.y = Min.x = oldMin.x;
              if (max > oldMax.x)
                Max.y = Max.x = max;
              else
                Max.y = Max.x = oldMax.x;
            }
            oldMin = Min;
            oldMax = Max;
          }
          else if (iupStrEqualNoCase(ds->dsMode, "CHART") && iupAttribGetBoolean(ih, "PIECHART"))
          {
            double rmax = fabs(Max.y)>fabs(Min.y)?fabs(Max.y):fabs(Min.y);
            Min.y = Min.x = -rmax;
            Max.y = Max.x =  rmax;
          }
        }
      }
      else if (ds->dsDim == 2)  /* 2D Linear data */
      {
        if (ih->data->axisX.axAutoScaleMax || ih->data->axisX.axAutoScaleMin)
          iMglPlotFindMinMaxValues(*ds->dsX, add, Min.x, Max.x);
        if (ih->data->axisY.axAutoScaleMax || ih->data->axisY.axAutoScaleMin)
          iMglPlotFindMinMaxValues(*ds->dsY, add, Min.y, Max.y);
      }
      else if (ds->dsDim == 3)  /* 2D Linear data */
      {
        if (ih->data->axisX.axAutoScaleMax || ih->data->axisX.axAutoScaleMin)
          iMglPlotFindMinMaxValues(*ds->dsX, add, Min.x, Max.x);
        if (ih->data->axisY.axAutoScaleMax || ih->data->axisY.axAutoScaleMin)
          iMglPlotFindMinMaxValues(*ds->dsY, add, Min.y, Max.y);
        if (ih->data->axisZ.axAutoScaleMax || ih->data->axisZ.axAutoScaleMin)
          iMglPlotFindMinMaxValues(*ds->dsZ, add, Min.z, Max.z);
      }
    }
  }

  iMglPlotConfigScale(ih->data->axisX, Min.x, Max.x);
  iMglPlotConfigScale(ih->data->axisY, Min.y, Max.y);
  iMglPlotConfigScale(ih->data->axisZ, Min.z, Max.z);

  gr->SetRange('x', Min.x, Max.x);
  gr->SetRange('y', Min.y, Max.y);
  gr->SetRange('z', Min.z, Max.z);

  iMglPlotConfigAxisTicks(ih, gr, 'x', ih->data->axisX, Min.x, Max.x);
  iMglPlotConfigAxisTicks(ih, gr, 'y', ih->data->axisY, Min.y, Max.y);
  iMglPlotConfigAxisTicks(ih, gr, 'z', ih->data->axisZ, Min.z, Max.z);


  // Color Range
  double Cmin, Cmax;
  char* coloraxisticks = iupAttribGetStr(ih, "COLORBARAXISTICKS");
  char* value = iupAttribGetStr(ih, "COLORBARRANGE");
  if (!value || iupStrToDoubleDouble(value, &Cmin, &Cmax, ':') != 2) 
  {
    if (coloraxisticks && tolower(*coloraxisticks) == 'x') 
    {
      Cmin = Min.x;
      Cmax = Max.x;
    }
    else if (coloraxisticks && tolower(*coloraxisticks) == 'y') 
    {
      Cmin = Min.y;
      Cmax = Max.y;
    }
    else 
    {
      // By default set CMin-Max to Z Min-Max
      Cmin = Min.z;
      Cmax = Max.z;
    }
  }

  gr->SetRange('c', Cmin, Cmax);

  if (coloraxisticks && tolower(*coloraxisticks) == 'x') 
    iMglPlotConfigAxisTicks(ih, gr, 'c', ih->data->axisX, Cmin, Cmax);
  else if (coloraxisticks && tolower(*coloraxisticks) == 'y') 
    iMglPlotConfigAxisTicks(ih, gr, 'c', ih->data->axisY, Cmin, Cmax);
  else 
    iMglPlotConfigAxisTicks(ih, gr, 'c', ih->data->axisZ, Cmin, Cmax);


  // Origin
  gr->SetOrigin(ih->data->axisX.axOrigin, ih->data->axisY.axOrigin, ih->data->axisZ.axOrigin);


  // Scale
  if (ih->data->axisX.axScale || ih->data->axisY.axScale || ih->data->axisZ.axScale)
    gr->SetFunc(ih->data->axisX.axScale, ih->data->axisY.axScale, ih->data->axisZ.axScale, NULL);
  else
    gr->SetFunc(NULL, NULL, NULL, NULL);
}

static void iMglPlotDrawAxisLabel(Ihandle* ih, mglGraph *gr, char dir, Iaxis& axis)
{
  char attrib[11] = "AXS_?LABEL";
  attrib[4] = dir;
  iupStrUpper(attrib, attrib);
  char* label = iupAttribGetStr(ih, attrib);
  if (label)
  {
    gr->SetRotatedText(axis.axLabelRotation);

    iMglPlotConfigFont(ih, gr, &axis.axColor, axis.axLabelFontStyle, axis.axLabelFontSizeFactor);
    
    gr->Label(dir, label, (mreal)axis.axLabelPos, "");  

    gr->SetRotatedText(false);
  }
}

static void iMglPlotConfigAxisTicksNames(Ihandle* ih, mglGraph *gr, bool set)
{
  IdataSet* ds = &ih->data->dataSet[0];  // Allow names only for the first dataset
  if (ds->dsNames)
  {
    // TODO: TicksVal should follow ticks spacing configuration
    if (set)
    {
      char** dsNames = (char**)iupArrayGetData(ds->dsNames);
      int count = iupArrayCount(ds->dsNames);
      int i, total_size = 0;
      for (i = 0; i < count; i++)
        total_size += (int)strlen(dsNames[i]) + 1;
      char* labels = new char[total_size + 1];
      labels[0] = 0;
      for (i = 0; i < count; i++)
      {
        strcat(labels, dsNames[i]);
        strcat(labels, "\n");
      }
      gr->SetTicksVal('x', labels);
      delete[] labels;
    }
    else
      gr->SetTicksVal('x', (wchar_t*)NULL);
  }
}

static void iMglPlotConfigAxisTicksLen(mglGraph *gr, Iaxis& axis)
{
  if (!axis.axTickAutoSize)
    gr->SetTickLen(-axis.axTickMajorSize, axis.axTickMinorSizeFactor);
  else
    gr->SetTickLen(-0.02, 1.0);
}

static void iMglPlotDrawAxis(Ihandle* ih, mglGraph *gr, char dir, Iaxis& axis)
{
  // Must be set here, because there is only one for all the axis.
  iMglPlotConfigAxisTicksLen(gr, axis);

  // Must be reset after configuring the ticks
  if (dir == 'x')
    iMglPlotConfigAxisTicksNames(ih, gr, true);
  // Configure ticks values rotation along axis
  gr->SetRotatedText(axis.axTickValuesRotation);

  char style[64] = "";

  iMglPlotAddStyleColor(ih, style, axis.axColor);
  iMglPlotConfigFont(ih, gr, &axis.axColor, axis.axTickFontStyle, axis.axTickFontSizeFactor);

  // Draw the axis, ticks and ticks values
  int i = 0;
  char sdir[10];

  sdir[i++] = dir;
  if (!axis.axTickShowValues)
    sdir[i++] = '_';
  if (axis.axShowArrow)
    sdir[i++] = 'T';
  if (axis.axReverse)
    sdir[i++] = '^';
  sdir[i] = 0;

  /* TODO - more ticks options
   <EFBFBD>XYZ' for drawing axis in corresponding direction but with inverted positions of labels;
   <EFBFBD>U' for disabling rotation of tick labels;
   <EFBFBD>a' for forced adjusting of axis ticks.

    gr->SetOriginTick(axis.axTickShowOrigin);
    gr->SetTickRotate(false);
  */

  // Spacing between ticks and ticks labels
  gr->SetTickShift(mglPoint(0.1, 0.1, 0.1));

  gr->Axis(sdir, style);  

  // Reset to default
  if (dir == 'x')
    iMglPlotConfigAxisTicksNames(ih, gr, false);
  gr->SetRotatedText(false);
}

static void iMglPlotDrawAxes(Ihandle* ih, mglGraph *gr)
{
  // Draw axes lines, ticks and ticks labels
  if (ih->data->axisX.axShow)
  {
    iMglPlotDrawAxis(ih, gr, 'x', ih->data->axisX);

    iMglPlotDrawAxisLabel(ih, gr, 'x', ih->data->axisX);
  }
  if(ih->data->axisY.axShow)  
  {
    iMglPlotDrawAxis(ih, gr, 'y', ih->data->axisY);

    iMglPlotDrawAxisLabel(ih, gr, 'y', ih->data->axisY);
  }
  if (ih->data->axisZ.axShow && iMglPlotIsView3D(ih))
  {
    iMglPlotDrawAxis(ih, gr, 'z', ih->data->axisZ);

    iMglPlotDrawAxisLabel(ih, gr, 'z', ih->data->axisZ);
  }

  if (iupAttribGetBoolean(ih, "COLORBAR"))
  {
    char style[64] = "";

    char* value = iupAttribGetStr(ih, "COLORBARPOS");
    if (iupStrEqualNoCase(value, "LEFT"))	style[0] = '<';
    else if (iupStrEqualNoCase(value, "TOP"))	style[0] = '^';
    else if (iupStrEqualNoCase(value, "BOTTOM"))	style[0] = '_';
    else style[0] = '>';  // RIGHT
    style[1] = 0;

    // Can NOT configure Axis color or it will affect the colors of the colorbar
    if (style[0] == '>' || style[0] == '<')
      iMglPlotConfigFont(ih, gr, &ih->data->axisX.axColor, ih->data->axisX.axTickFontStyle, ih->data->axisX.axTickFontSizeFactor);
    else
      iMglPlotConfigFont(ih, gr, &ih->data->axisY.axColor, ih->data->axisY.axTickFontStyle, ih->data->axisY.axTickFontSizeFactor);

    gr->Colorbar(style);
  }
}

static void iMglPlotDrawGrid(Ihandle* ih, mglGraph *gr)
{
  char style[64] = "";
  iMglPlotAddStyleColor(ih, style, ih->data->gridColor);
  iMglPlotAddStyleLine(style, ih->data->gridLineStyle, 1);

  char grid[10];
  iupStrLower(grid, ih->data->gridShow);

  gr->Grid(grid, style);
}

static void iMglPlotDrawBox(Ihandle* ih, mglGraph *gr)
{
  char style[64] = "";
  iMglPlotAddStyleColor(ih, style, ih->data->boxColor);
  gr->Box(style, ih->data->boxTicks);
}

static char* iMglPlotMakeFormatString(double inValue, double range) 
{
  if (inValue<0)
    inValue = range/(-inValue);

  if (inValue > 1.0e4 || inValue < 1.0e-3)
    return "%.1e";
  else 
  {
    int thePrecision = 0;
    if (inValue<1) 
    {
      double theSpan = inValue;
      while (theSpan<1 && thePrecision<10) 
      {
        thePrecision++;
        theSpan *= 10;
      }
      if (thePrecision<10)
        thePrecision++;
    }

    switch (thePrecision)
    {
    case 1: return "%.1f";
    case 2: return "%.2f";
    case 3: return "%.3f";
    case 4: return "%.4f";
    case 5: return "%.5f";
    case 6: return "%.6f";
    case 7: return "%.7f";
    case 8: return "%.8f";
    case 9: return "%.9f";
    default: return "%.0f";
    }
  }
}

static void iMglPlotDrawValues(Ihandle* ih, IdataSet* ds, mglGraph *gr)
{
  int i;
  char style[64] = "";
  char text[256];
  char format[256];
  mglPoint p;
  char* xformat = iupAttribGetStr(ih, "AXS_XTICKFORMAT");
  char* yformat = iupAttribGetStr(ih, "AXS_YTICKFORMAT");
  char* zformat = iupAttribGetStr(ih, "AXS_ZTICKFORMAT");
  if (!xformat) xformat = iMglPlotMakeFormatString(ih->data->axisX.axTickMajorSpan, ih->data->axisX.axMax - ih->data->axisX.axMin);
  if (!yformat) yformat = iMglPlotMakeFormatString(ih->data->axisY.axTickMajorSpan, ih->data->axisY.axMax - ih->data->axisY.axMin);
  if (!zformat) zformat = iMglPlotMakeFormatString(ih->data->axisZ.axTickMajorSpan, ih->data->axisZ.axMax - ih->data->axisZ.axMin);

  iMglPlotAddStyleColor(ih, style, ds->dsColor);
  strcat(style, ":L");
  iMglPlotConfigFont(ih, gr, NULL, ih->data->legendFontStyle, ih->data->legendFontSizeFactor);

  gr->SetRotatedText(true);

  double* dsXPoints = ds->dsX->a;
  if (ds->dsDim == 3)
  {
    double* dsYPoints = ds->dsY->a;
    double* dsZPoints = ds->dsZ->a;
    mglPoint d = mglPoint(ih->data->axisX.axMax-ih->data->axisX.axMin, 
                          ih->data->axisY.axMax-ih->data->axisY.axMin, 
                          ih->data->axisZ.axMax-ih->data->axisZ.axMin);

    sprintf(format, "(%s, %s, %s)", xformat, yformat, zformat);

    for(i = 0; i < ds->dsCount; i++)
    {
      sprintf(text, format, dsXPoints[i], dsYPoints[i], dsZPoints[i]);
      p = mglPoint(dsXPoints[i], dsYPoints[i], dsZPoints[i]);
      
      gr->Puts(p, p + d, text, style);
    }
  }
  else if (ds->dsDim == 2)
  {
    double* dsYPoints = ds->dsY->a;
    mglPoint d = mglPoint(ih->data->axisX.axMax - ih->data->axisX.axMin,
                          ih->data->axisY.axMax - ih->data->axisY.axMin);

    sprintf(format, "(%s, %s)", xformat, yformat);

    for(i = 0; i < ds->dsCount; i++)
    {
      sprintf(text, format, dsXPoints[i], dsYPoints[i]);
      p = mglPoint(dsXPoints[i], dsYPoints[i]);
      
      gr->Puts(p, p + d, text, style);
    }
  }
  else
  {
    sprintf(format, "(%%d, %s)", xformat);
    mglPoint d = mglPoint(ih->data->axisX.axMax-ih->data->axisX.axMin, 
                          ih->data->axisY.axMax-ih->data->axisY.axMin);

    for(i = 0; i < ds->dsCount; i++)
    {
      sprintf(text, format, i, dsXPoints[i]);
      p = mglPoint((double)i, dsXPoints[i]);
      
      gr->Puts(p, p + d, text, style);
    }
  }

  gr->SetRotatedText(false);
}

static void iMglPlotConfigDataGrid(mglGraph *gr, IdataSet* ds, char* style)
{ 
  // Affected by SetLineMark
  iMglPlotConfigDataSetLineMark(ds, gr, style);

  strcat(style, "#"); // grid
}

static void iMglPlotConfigColorScheme(Ihandle* ih, char* style)
{
  char* value = iupAttribGetStr(ih, "COLORSCHEME");
  if (value)
  {
    strcpy(style, value);
    strcat(style, ":");
  }
}

static void iMglPlotDrawVolumetricData(Ihandle* ih, mglGraph *gr, IdataSet* ds)
{               
  char style[64] = "";
  char* value;

  // All plots here are affected by ColorScheme
  iMglPlotConfigColorScheme(ih, style);

  if (iupStrEqualNoCase(ds->dsMode, "VOLUME_ISOSURFACE"))
  {
    if (iupAttribGetBoolean(ih, "DATAGRID"))   // Default false
      iMglPlotConfigDataGrid(gr, ds, style);  // Here means wire

    value = iupAttribGet(ih, "ISOVALUE");
    if (value)
    {
      double isovalue;
      if (iupStrToDouble(value, &isovalue))
        gr->Surf3(isovalue, *ds->dsX, style);   // only 1 isosurface
    }
    else
    {
      int isocount = iupAttribGetInt(ih, "ISOCOUNT");  //Default 3
      char opt[100];
      sprintf(opt, "value %d;", isocount);
      gr->Surf3(*ds->dsX, style, opt); // plots N isosurfaces, from Cmin to Cmax
    }
  }
  else if (iupStrEqualNoCase(ds->dsMode, "VOLUME_DENSITY"))
  {
    if (iupAttribGetBoolean(ih, "DATAGRID"))  // Default false
      iMglPlotConfigDataGrid(gr, ds, style);  // Here means wire

    char* slicedir = iupAttribGetStr(ih, "SLICEDIR"); //Default "XYZ"
    int project = iupAttribGetBoolean(ih, "PROJECT");  //Default false
    if (project)
    {
      double valx = iMglPlotGetAttribDoubleNAN(ih, "PROJECTVALUEX");
      double valy = iMglPlotGetAttribDoubleNAN(ih, "PROJECTVALUEY");
      double valz = iMglPlotGetAttribDoubleNAN(ih, "PROJECTVALUEZ");
      if (tolower(*slicedir)=='x') { gr->DensX(ds->dsX->Sum("x"), style, valx); slicedir++; }
      if (tolower(*slicedir)=='y') { gr->DensY(ds->dsX->Sum("y"), style, valy); slicedir++; }
      if (tolower(*slicedir)=='z') { gr->DensZ(ds->dsX->Sum("z"), style, valz); slicedir++; }
    }
    else
    {
      double slicex = iupAttribGetDouble(ih, "SLICEX");  //Default -1 (central)
      double slicey = iupAttribGetDouble(ih, "SLICEY");  //Default -1 (central)
      double slicez = iupAttribGetDouble(ih, "SLICEZ");  //Default -1 (central)
      if (tolower(*slicedir) == 'x') { strcat(style, "x");  gr->Dens3(*ds->dsX, style, slicex); slicedir++; }
      if (tolower(*slicedir) == 'y') { strcat(style, "y");  gr->Dens3(*ds->dsX, style, slicey); slicedir++; }
      if (tolower(*slicedir) == 'z') { strcat(style, "z");  gr->Dens3(*ds->dsX, style, slicez); slicedir++; }
    }
  }
  else if (iupStrEqualNoCase(ds->dsMode, "VOLUME_CONTOUR"))
  {
    if (iupAttribGetBoolean(ih, "DATAGRID"))
      iMglPlotConfigDataGrid(gr, ds, style);  // Here means wire

    int contourcount = iupAttribGetInt(ih, "CONTOURCOUNT");  //Default 7, plots N countours, from Cmin to Cmax
    char opt[100];
    sprintf(opt, "value %d;", contourcount);

    int countourfilled = iupAttribGetBoolean(ih, "CONTOURFILLED");  //Default false
    char* slicedir = iupAttribGetStr(ih, "SLICEDIR"); //Default "XYZ"
    int project = iupAttribGetBoolean(ih, "PROJECT");  //Default false
    if (project)
    {
      double valx = iMglPlotGetAttribDoubleNAN(ih, "PROJECTVALUEX");
      double valy = iMglPlotGetAttribDoubleNAN(ih, "PROJECTVALUEY");
      double valz = iMglPlotGetAttribDoubleNAN(ih, "PROJECTVALUEZ");
      if (countourfilled)
      {
        if (tolower(*slicedir) == 'x') { gr->ContFX(ds->dsX->Sum("x"), style, valx, opt); slicedir++; }
        if (tolower(*slicedir) == 'y') { gr->ContFY(ds->dsX->Sum("y"), style, valy, opt); slicedir++; }
        if (tolower(*slicedir) == 'z') { gr->ContFZ(ds->dsX->Sum("z"), style, valz, opt); slicedir++; }
      }
      else
      {
        if (tolower(*slicedir) == 'x') { gr->ContX(ds->dsX->Sum("x"), style, valx, opt); slicedir++; }
        if (tolower(*slicedir) == 'y') { gr->ContY(ds->dsX->Sum("y"), style, valy, opt); slicedir++; }
        if (tolower(*slicedir) == 'z') { gr->ContZ(ds->dsX->Sum("z"), style, valz, opt); slicedir++; }
      }
    }
    else
    {
      double slicex = iupAttribGetDouble(ih, "SLICEX");  //Default -1 (central)
      double slicey = iupAttribGetDouble(ih, "SLICEY");  //Default -1 (central)
      double slicez = iupAttribGetDouble(ih, "SLICEZ");  //Default -1 (central)

      if (countourfilled)
      {
        if (tolower(*slicedir) == 'x') { strcat(style, "x");  gr->ContF3(*ds->dsX, style, slicex, opt); slicedir++; }
        if (tolower(*slicedir) == 'y') { strcat(style, "y");  gr->ContF3(*ds->dsX, style, slicey, opt); slicedir++; }
        if (tolower(*slicedir) == 'z') { strcat(style, "z");  gr->ContF3(*ds->dsX, style, slicez, opt); slicedir++; }
      }
      else
      {
        // Affected by SetLineMark
        iMglPlotConfigDataSetLineMark(ds, gr, style);

        if (tolower(*slicedir) == 'x') { strcat(style, "x");  gr->Cont3(*ds->dsX, style, slicex, opt); slicedir++; }
        if (tolower(*slicedir) == 'y') { strcat(style, "y");  gr->Cont3(*ds->dsX, style, slicey, opt); slicedir++; }
        if (tolower(*slicedir) == 'z') { strcat(style, "z");  gr->Cont3(*ds->dsX, style, slicez, opt); slicedir++; }
      }
    }
  }
  else if (iupStrEqualNoCase(ds->dsMode, "VOLUME_CLOUD"))
  {
    int low = iupAttribGetBoolean(ih, "CLOUDLOW");  //Default false
    if (low)
      strcat(style, ".");

    gr->Cloud(*ds->dsX, style, "-1");   // Use AlphaDef
  }
}

static void iMglPlotDrawPlanarData(Ihandle* ih, mglGraph *gr, IdataSet* ds)
{               
  char style[64] = "";

  // All plots here are affected by ColorScheme
  iMglPlotConfigColorScheme(ih, style);

  if (iupStrEqualNoCase(ds->dsMode, "PLANAR_MESH"))
  {
    // Affected by SetLineMark
    iMglPlotConfigDataSetLineMark(ds, gr, style);

    gr->Mesh(*ds->dsX, style);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "PLANAR_FALL"))
  {
    // Affected by SetLineMark
    iMglPlotConfigDataSetLineMark(ds, gr, style);

    char* falldir = iupAttribGetStr(ih, "DIR"); //Default "Y"
    if (tolower(*falldir) == 'x')
      { style[0] = 'x'; style[1] = 0; }

    gr->Fall(*ds->dsX, style);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "PLANAR_BELT"))
  {
    char* beltdir = iupAttribGetStr(ih, "DIR"); //Default "Y"
    if (tolower(*beltdir) == 'x')
      { style[0] = 'x'; style[1] = 0; }

    gr->Belt(*ds->dsX, style);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "PLANAR_SURFACE"))
  {
    if (iupAttribGetBoolean(ih, "DATAGRID"))   // Default false
      iMglPlotConfigDataGrid(gr, ds, style);

    gr->Surf(*ds->dsX, style);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "PLANAR_BOXES"))
  {
    if (iupAttribGetBoolean(ih, "DATAGRID"))   // Default false
      iMglPlotConfigDataGrid(gr, ds, style);  // Here means box lines

    gr->Boxs(*ds->dsX, style);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "PLANAR_TILE"))
  {
    gr->Tile(*ds->dsX, style);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "PLANAR_DENSITY"))
  {
    gr->Dens(*ds->dsX, style, "");
  }
  else if (iupStrEqualNoCase(ds->dsMode, "PLANAR_CONTOUR"))
  {
    int contourcount = iupAttribGetInt(ih, "CONTOURCOUNT");  //Default 7, plots N countours, from Cmin to Cmax
    int countourfilled = iupAttribGetBoolean(ih, "CONTOURFILLED");  //Default false

    char opt[100];
    sprintf(opt, "value %d;", contourcount);

    if (countourfilled)
      gr->ContF(*ds->dsX, style, opt);
    else
    {
      // Affected by SetLineMark
      iMglPlotConfigDataSetLineMark(ds, gr, style);

      char* countourlabels = iupAttribGetStr(ih, "CONTOURLABELS");  //Default NULL
      if (iupStrEqualNoCase(countourlabels, "BELLOW"))
        strcat(style, "t");
      else if (iupStrEqualNoCase(countourlabels, "ABOVE"))
        strcat(style, "T");

      gr->Cont(*ds->dsX, style, opt);
    }
  }
  else if (iupStrEqualNoCase(ds->dsMode, "PLANAR_AXIALCONTOUR"))
  {
    int axialcount = iupAttribGetInt(ih, "AXIALCOUNT");  //Default 3, plots N countours, from Cmin to Cmax
    char opt[100];
    sprintf(opt, "value %d;", axialcount);
    gr->Axial(*ds->dsX, style, opt);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "PLANAR_GRADIENTLINES"))
  {
    int gradlinescount = iupAttribGetInt(ih, "GRADLINESCOUNT");  //Default 5
    char opt[100];
    sprintf(opt, "value %d;", gradlinescount);
    gr->Grad(*ds->dsX, style, opt);
  }
}

static void iMglPlotDrawLinearData(Ihandle* ih, mglGraph *gr, IdataSet* ds)
{               
  char style[64] = "";

  iMglPlotAddStyleColor(ih, style, ds->dsColor);

  if (iupStrEqualNoCase(ds->dsMode, "LINE") ||
      iupStrEqualNoCase(ds->dsMode, "MARKLINE") ||
      iupStrEqualNoCase(ds->dsMode, "MARK"))
  {
    if (!iupStrEqualNoCase(ds->dsMode, "LINE"))  // same as setting marks=yes
      ds->dsShowMarks = true;
    if (iupStrEqualNoCase(ds->dsMode, "MARK"))   // Same as setting linestyle=none
      ds->dsLineStyle = ' '; // No line

    // Affected by SetLineMark
    iMglPlotConfigDataSetLineMark(ds, gr, style);

    if (ds->dsDim == 3)
      gr->Plot(*ds->dsX, *ds->dsY, *ds->dsZ, style);
    else if (ds->dsDim == 2)
      gr->Plot(*ds->dsX, *ds->dsY, style, 0);
    else
      gr->Plot(*ds->dsX, style, 0);  // At Z=0
  }
  else if (iupStrEqualNoCase(ds->dsMode, "RADAR"))
  {
    // Affected by SetLineMark
    iMglPlotConfigDataSetLineMark(ds, gr, style);

    char opt[100] = "";
    if (iupAttribGet(ih, "RADARSHIFT"))
    {
      double radarshift = iupAttribGetDouble(ih, "RADARSHIFT");   // Default -1
      sprintf(opt, "value %g;", radarshift);
    }

    if (iupAttribGetBoolean(ih, "DATAGRID"))  //Default false
      iMglPlotConfigDataGrid(gr, ds, style);

    gr->Radar(*ds->dsX, style, opt);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "AREA"))
  {
    // NOT affected by SetLineMark

    if (ds->dsDim == 3)
      gr->Area(*ds->dsX, *ds->dsY, *ds->dsZ, style);
    else if (ds->dsDim == 2)
      gr->Area(*ds->dsX, *ds->dsY, style, 0);
    else
      gr->Area(*ds->dsX, style, 0);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "BAR"))
  {
    // NOT affected by SetLineMark

    strcat(style, "^"); // center align the bar

    if (iupAttribGetBoolean(ih, "DATAGRID"))  //Default false
      iMglPlotConfigDataGrid(gr, ds, style);

    double barwidth = iupAttribGetDouble(ih, "BARWIDTH");   // Default 0.7
    if (barwidth <= 0) barwidth = 0.7;
    gr->SetBarWidth(barwidth);

    // To avoid hole bars clipped when touching the bounding box
    gr->SetCut(false); 

    if (ds->dsDim == 3)
      gr->Bars(*ds->dsX, *ds->dsY, *ds->dsZ, style);
    else if (ds->dsDim == 2)
      gr->Bars(*ds->dsX, *ds->dsY, style, 0);
    else
      gr->Bars(*ds->dsX, style, 0);

    gr->SetCut(true); 
  }
  else if (iupStrEqualNoCase(ds->dsMode, "BARHORIZONTAL"))
  {
    // NOT affected by SetLineMark

    if (iupAttribGetBoolean(ih, "DATAGRID"))  //Default false
      iMglPlotConfigDataGrid(gr, ds, style);

    double barwidth = iupAttribGetDouble(ih, "BARWIDTH");   // Default 0.7
    if (barwidth <= 0) barwidth = 0.7;
    gr->SetBarWidth(barwidth);

    // To avoid hole bars clipped when touching the bounding box
    gr->SetCut(false); 

    if (ds->dsDim == 2)
      gr->Barh(*ds->dsY, *ds->dsX, style, 0);
    else
      gr->Barh(*ds->dsX, style, 0);

    gr->SetCut(true); 
  }
  else if (iupStrEqualNoCase(ds->dsMode, "STEP"))
  {
    // Affected by SetLineMark
    iMglPlotConfigDataSetLineMark(ds, gr, style);

    if (ds->dsDim == 3)
      gr->Step(*ds->dsX, *ds->dsY, *ds->dsZ, style);
    else if (ds->dsDim == 2)
      gr->Step(*ds->dsX, *ds->dsY, style, 0);
    else
      gr->Step(*ds->dsX, style, 0);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "STEM"))
  {
    // Affected by SetLineMark
    iMglPlotConfigDataSetLineMark(ds, gr, style);

    if (ds->dsDim == 3)
      gr->Stem(*ds->dsX, *ds->dsY, *ds->dsZ, style);
    else if (ds->dsDim == 2)
      gr->Stem(*ds->dsX, *ds->dsY, style, 0);
    else
      gr->Stem(*ds->dsX, style, 0);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "CHART"))
  {
    // NOT affected by SetLineMark

    style[0] = 0;
    // Affected by ColorScheme
    iMglPlotConfigColorScheme(ih, style);

    if (iupAttribGetBoolean(ih, "DATAGRID"))  //Default false
      iMglPlotConfigDataGrid(gr, ds, style);

    int piechart = iupAttribGetBoolean(ih, "PIECHART");  //Default false
    if (piechart)
    {
      //TODO: this equation works only if x in the interval [-1, 1]
      gr->SetFunc("(y+1)/2*cos(pi*x)", "(y+1)/2*sin(pi*x)");

      // This box has to be here, so it will be affected by the transformation
      if (ih->data->Box)
        iMglPlotDrawBox(ih, gr);

      gr->Chart(*ds->dsX, style);
      gr->SetFunc(NULL, NULL);
    }
    else
      gr->Chart(*ds->dsX, style);
  }
  else if (iupStrEqualNoCase(ds->dsMode, "CRUST"))
  {
    if (ds->dsDim == 3)
    {
      // NOT affected by SetLineMark
      // NOT affected by StyleColor

      style[0] = 0;
      // Affected by ColorScheme
      iMglPlotConfigColorScheme(ih, style);

      if (iupAttribGetBoolean(ih, "DATAGRID"))  //Default false
        iMglPlotConfigDataGrid(gr, ds, style);

      gr->Crust(*ds->dsX, *ds->dsY, *ds->dsZ, style, "");
    }
  }
  else if (iupStrEqualNoCase(ds->dsMode, "DOTS"))
  {
    if (ds->dsDim == 3)
    {
      // NOT affected by SetLineMark
      // NOT affected by StyleColor

      style[0] = 0;
      // Affected by ColorScheme
      iMglPlotConfigColorScheme(ih, style);

      gr->Dots(*ds->dsX, *ds->dsY, *ds->dsZ, style);
    }
  }
}

static void iMglPlotDrawData(Ihandle* ih, mglGraph *gr)
{
  int i;
  for(i = 0; i < ih->data->dataSetCount; i++)
  {
    IdataSet* ds = &ih->data->dataSet[i];

    if (iMglPlotIsVolumetricData(ds))
      iMglPlotDrawVolumetricData(ih, gr, ds);
    else if (iMglPlotIsPlanarData(ds))
      iMglPlotDrawPlanarData(ih, gr, ds);
    else
      iMglPlotDrawLinearData(ih, gr, ds);

    if(ds->dsShowValues && !iMglPlotIsPlanarOrVolumetricData(ds))
      iMglPlotDrawValues(ih, ds, gr);  /* Print values near the samples */
  }
}

static void iMglPlotDrawLegend(Ihandle* ih, mglGraph *gr)
{
  int i;
  char style[64] = "";

  gr->ClearLegend();

  for(i = 0; i < ih->data->dataSetCount; i++)
  {
    IdataSet* ds = &ih->data->dataSet[i];

    style[0] = 0;
    iMglPlotConfigDataSetLineMark(ds, gr, style);
    iMglPlotAddStyleColor(ih, style, ds->dsColor);
    gr->AddLegend(ds->dsLegend, style);
  }

  style[0] = 0;
  if (ih->data->legendBox)
  {
    style[0] = '#';
    style[1] = 0;
  }

  // Draw legend of accumulated strings
  iMglPlotAddStyleColor(ih, style, ih->data->bgColor);      // background
  iMglPlotAddStyleColor(ih, style, ih->data->legendColor);  // text
  iMglPlotConfigFont(ih, gr, NULL, ih->data->legendFontStyle, ih->data->legendFontSizeFactor);

  gr->Legend(ih->data->legendPosition, style, "value 0.05;");
}

static void iMglPlotDrawTitle(Ihandle* ih, mglGraph *gr, const char* title)
{
  char style[64] = "";

  iMglPlotAddStyleColor(ih, style, ih->data->titleColor);
  iMglPlotConfigFont(ih, gr, &ih->data->titleColor, ih->data->titleFontStyle, ih->data->titleFontSizeFactor);

  gr->Title(title, style);
}

static void iMglPlotConfigPlotArea(Ihandle* ih, mglGraph *gr)
{
  char style[64] = "";
  int i = 0;

  char* colorbar_pos = NULL;
  if (iupAttribGetBoolean(ih, "COLORBAR"))
    colorbar_pos = iupAttribGetStr(ih, "COLORBARPOS");

  if (iupAttribGetStr(ih, "TITLE"))
    style[i++] = 'T';

  if (iupAttribGetBoolean(ih, "MARGINTOP") || 
      iupStrEqualNoCase(colorbar_pos, "TOP"))
    style[i++] = '^';

  if (iupAttribGetBoolean(ih, "MARGINBOTTOM") || 
      iupStrEqualNoCase(colorbar_pos, "BOTTOM"))
    style[i++] = '_';

  if (iupAttribGetBoolean(ih, "MARGINLEFT") ||
      iupStrEqualNoCase(colorbar_pos, "LEFT"))
    style[i++] = '<';

  if (iupAttribGetBoolean(ih, "MARGINRIGHT") ||
      iupStrEqualNoCase(colorbar_pos, "RIGHT"))
    style[i++] = '>';

  style[i] = 0;

  gr->SubPlot(1, 1, 0, style);

}

static void iMglPlotConfigView(Ihandle* ih, mglGraph *gr)
{
  // Transparency
  gr->Alpha(true);  // Necessary so Anti-alias can work.
  if (ih->data->transparent)
    gr->SetAlphaDef(ih->data->alpha);  // Should be used only if transparent is enabled
  else
    gr->SetAlphaDef(1.0);

  // Zoom and Pan
  gr->Zoom(ih->data->x1, ih->data->y1, ih->data->x2, ih->data->y2);

  if (iMglPlotIsView3D(ih))
  {
    if (iupAttribGetBoolean(ih, "LIGHT"))  /* Default: FALSE */
      gr->Light(true);
    else
      gr->Light(false);

    // Notice that rotZ is the second parameter
    gr->Rotate(ih->data->rotX, ih->data->rotZ, ih->data->rotY);  
  }
}

static void iMglPlotDrawPlot(Ihandle* ih, mglGraph *gr)
{
  // Since this function will be used to draw on screen and
  // on metafile and bitmaps, all mglGraph control must be done here
  // and can NOT be done inside the attribute methods

  gr->DefaultPlotParam();

  gr->SetWarn(0, "");

  /* Clear */
  gr->Clf(ih->data->bgColor.r, ih->data->bgColor.g, ih->data->bgColor.b);

  iMglPlotConfigPlotArea(ih, gr);

  iMglPlotConfigView(ih, gr);

  iMglPlotConfigFontDef(ih, gr, IupGetAttribute(ih, "FONT"));

  iMglPlotConfigAxesRange(ih, gr);

  iupAttribSet(ih, "_IUP_MGLPLOT_GRAPH", (char*)gr);

  IFn cb = IupGetCallback(ih, "PREDRAW_CB");
  if (cb)
    cb(ih);

  iMglPlotDrawAxes(ih, gr);

  if(ih->data->gridShow)
    iMglPlotDrawGrid(ih, gr);

  int piechart = iupAttribGetBoolean(ih, "PIECHART");  //Default false
  if (ih->data->Box && !piechart)
    iMglPlotDrawBox(ih, gr);

  iMglPlotDrawData(ih, gr);

  if(ih->data->legendShow)
    iMglPlotDrawLegend(ih, gr);

  char* value = iupAttribGetStr(ih, "TITLE");
  if (value)
    iMglPlotDrawTitle(ih, gr, value);

  cb = IupGetCallback(ih, "POSTDRAW_CB");
  if (cb)
    cb(ih);

  iupAttribSet(ih, "_IUP_MGLPLOT_GRAPH", NULL);
}

static void iMglPlotRepaint(Ihandle* ih, int force, int flush)
{
  if (!IupGLIsCurrent(ih))
    force = 1;

  IupGLMakeCurrent(ih);

  mglGraph* gr = ih->data->mgl;

  if (force || ih->data->redraw)
  {
    /* update render */
    iMglPlotDrawPlot(ih, gr);  /* Draw the graphics plot */

    gr->Finish();
    ih->data->redraw = false;
  }

  if (flush)
  {
    if (!ih->data->opengl)
    {
      const unsigned char *rgb = gr->GetRGB();
	    if (rgb)
        glDrawPixels(ih->data->w, ih->data->h, GL_RGB, GL_UNSIGNED_BYTE, rgb);
    }

    IupGLSwapBuffers(ih);
  }
}


/******************************************************************************
 Attribute Methods
******************************************************************************/

static int iMglPlotSetColor(Ihandle* ih, const char* value, mglColor& color)
{
  unsigned char rr, gg, bb, aa = 255;

  if (!value)
  {
    color.Set(NAN, NAN, NAN);
    ih->data->redraw = true;
  }
  else if (iupStrToRGBA(value, &rr, &gg, &bb, &aa))
  {
    color.Set(iRecon(rr), iRecon(gg), iRecon(bb), iRecon(aa));
    ih->data->redraw = true;
  }

  return 0;
}

static char* iMglPlotReturnColor(const mglColor& color)
{
  if (color.a < 1)
    return iupStrReturnRGBA(iQuant(color.r), iQuant(color.g), iQuant(color.b), iQuant(color.a));
  else
    return iupStrReturnRGB(iQuant(color.r), iQuant(color.g), iQuant(color.b));
}

static int iMglPlotSetBoolean(Ihandle* ih, const char* value, bool& num)
{
  bool old_num = num;

  if (iupStrBoolean(value))
    num = true;
  else 
    num = false;

  if (old_num != num)
    ih->data->redraw = true;

  return 0;
}

static int iMglPlotSetInt(Ihandle* ih, const char* value, int& num)
{
  int old_num = num;

  iupStrToInt(value, &num);

  if (old_num != num)
    ih->data->redraw = true;

  return 0;
}

static int iMglPlotSetDouble(Ihandle* ih, const char* value, double& num, double num_def)
{
  double old_num = num;

  if (!value)
    num = num_def;
  else
    iupStrToDouble(value, &num);

  if (old_num != num)
    ih->data->redraw = true;

  return 0;
}

static int iMglPlotSetResetAttrib(Ihandle* ih, const char* value)
{
  (void)value;  /* not used */
  iMglPlotReset(ih);

  // Some attributes are stored in the hash table
  iupAttribSet(ih, "TITLE", NULL);

  iupAttribSet(ih, "DATAGRID", NULL);
  iupAttribSet(ih, "GRADLINESCOUNT", NULL);
  iupAttribSet(ih, "AXIALCOUNT", NULL);
  iupAttribSet(ih, "CONTOURFILLED", NULL);
  iupAttribSet(ih, "CONTOURLABELS", NULL);
  iupAttribSet(ih, "CONTOURCOUNT", NULL);
  iupAttribSet(ih, "DIR", NULL);
  iupAttribSet(ih, "CLOUDLOW", NULL);
  iupAttribSet(ih, "SLICEX", NULL);
  iupAttribSet(ih, "SLICEY", NULL);
  iupAttribSet(ih, "SLICEZ", NULL);
  iupAttribSet(ih, "SLICEDIR", NULL);
  iupAttribSet(ih, "PROJECTVALUEX", NULL);
  iupAttribSet(ih, "PROJECTVALUEY", NULL);
  iupAttribSet(ih, "PROJECTVALUEZ", NULL);
  iupAttribSet(ih, "PROJECT", NULL);
  iupAttribSet(ih, "ISOCOUNT", NULL);
  iupAttribSet(ih, "BARWIDTH", NULL);
  iupAttribSet(ih, "RADARSHIFT", NULL);
  iupAttribSet(ih, "PIECHART", NULL);
  iupAttribSet(ih, "CRUSTRADIUS", NULL);

  iupAttribSet(ih, "LIGHT", NULL);
  iupAttribSet(ih, "COLORSCHEME", NULL);

  iupAttribSet(ih, "COLORBAR", NULL);
  iupAttribSet(ih, "COLORBARPOS", NULL);
  iupAttribSet(ih, "COLORBARRANGE", NULL);
  iupAttribSet(ih, "COLORBARAXISTICKS", NULL);

  iupAttribSet(ih, "AXS_XLABEL", NULL);
  iupAttribSet(ih, "AXS_YLABEL", NULL);
  iupAttribSet(ih, "AXS_ZLABEL", NULL);
  iupAttribSet(ih, "AXS_XTICKFORMAT", NULL);
  iupAttribSet(ih, "AXS_YTICKFORMAT", NULL);
  iupAttribSet(ih, "AXS_ZTICKFORMAT", NULL);

  ih->data->redraw = true;
  return 0;
}

static int iMglPlotSetRedrawAttrib(Ihandle* ih, const char* value)
{
  (void)value;  /* not used */
  iMglPlotRepaint(ih, 1, 1);    /* force a full redraw here */
  return 0;
}

static int iMglPlotSetBGColorAttrib(Ihandle* ih, const char* value)
{
  iMglPlotSetColor(ih, value, ih->data->bgColor);
  return 1;
}

static char* iMglPlotGetBGColorAttrib(Ihandle* ih)
{
  return iMglPlotReturnColor(ih->data->bgColor);
}

static int iMglPlotSetFGColorAttrib(Ihandle* ih, const char* value)
{
  iMglPlotSetColor(ih, value, ih->data->fgColor);
  return 1;
}

static char* iMglPlotGetFGColorAttrib(Ihandle* ih)
{
  return iMglPlotReturnColor(ih->data->fgColor);
}

static int iMglPlotSetTitleFontSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->titleFontSizeFactor, 1.0);
}

static char* iMglPlotGetTitleFontSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->titleFontSizeFactor);
}

static int iMglPlotSetFontStyle(Ihandle* ih, const char* value, char* fontstyle)
{
  fontstyle[0] = 0;
  if (iMglPlotAddStyleFont(fontstyle, value))
    ih->data->redraw = true;
  return 0;
}

static char* iMglPlotGetFontStyle(const char* fontstyle)
{
  char* str = iupStrGetMemory(100);
  if (strchr(fontstyle, 'r'))
    strcpy(str, "Plain ");
  else
  {
    if (strchr(fontstyle, 'b'))
      strcpy(str, "Bold ");

    if (strchr(fontstyle, 'i'))
      strcpy(str, "Italic ");
  }

  if (strchr(fontstyle, 'w'))
    strcpy(str, "Wired ");

  if (strchr(fontstyle, 'o'))
    strcpy(str, "Strikeout ");

  if (strchr(fontstyle, 'u'))
    strcpy(str, "Underline ");

  if (strchr(fontstyle, 'L'))
    strcpy(str, "Left ");
  else if (strchr(fontstyle, 'R'))
    strcpy(str, "Right ");
  else if (strchr(fontstyle, 'C'))
    strcpy(str, "Center ");

  if (str[0] != 0)
    return str;
  else
    return NULL;
}

static int iMglPlotSetTitleFontStyleAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetFontStyle(ih, value, ih->data->titleFontStyle);
}

static char* iMglPlotGetTitleFontStyleAttrib(Ihandle* ih)
{
  return iMglPlotGetFontStyle(ih->data->titleFontStyle);
}

static int iMglPlotSetTitleColorAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetColor(ih, value, ih->data->titleColor);
}

static char* iMglPlotGetTitleColorAttrib(Ihandle* ih)
{
  return iMglPlotReturnColor(ih->data->titleColor);
}

static int iMglPlotSetLegendFontSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->legendFontSizeFactor, 1.0);
}

static char* iMglPlotGetLegendFontStyleAttrib(Ihandle* ih)
{
  return iMglPlotGetFontStyle(ih->data->legendFontStyle);
}

static char* iMglPlotGetLegendFontSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->legendFontSizeFactor);
}

static int iMglPlotSetLegendFontStyleAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetFontStyle(ih, value, ih->data->legendFontStyle);
}

static int iMglPlotSetLegendShowAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->legendShow);
}

static char* iMglPlotGetLegendShowAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->legendShow);
}

static int iMglPlotSetLegendBoxAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->legendBox);
}

static char* iMglPlotGetLegendBoxAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->legendBox);
}

static int iMglPlotSetLegendPosAttrib(Ihandle* ih, const char* value)
{
  if (iupStrEqualNoCase(value, "TOPLEFT"))
    ih->data->legendPosition = IUP_MGLPLOT_TOPLEFT;
  else if (iupStrEqualNoCase(value, "BOTTOMLEFT"))
    ih->data->legendPosition = IUP_MGLPLOT_BOTTOMLEFT;
  else if (iupStrEqualNoCase(value, "BOTTOMRIGHT"))
    ih->data->legendPosition = IUP_MGLPLOT_BOTTOMRIGHT;
  else
    ih->data->legendPosition = IUP_MGLPLOT_TOPRIGHT;

  ih->data->redraw = true;
  return 0;
}

static char* iMglPlotGetLegendPosAttrib(Ihandle* ih)
{
  const char* legendpos_str[4] = {"BOTTOMLEFT", "BOTTOMRIGHT", "TOPLEFT", "TOPRIGHT"};
  return (char*)legendpos_str[ih->data->legendPosition];
}

static int iMglPlotSetLegendColorAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetColor(ih, value, ih->data->legendColor);
}

static char* iMglPlotGetLegendColorAttrib(Ihandle* ih)
{
  return iMglPlotReturnColor(ih->data->legendColor);
}

static int iMglPlotSetGridColorAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetColor(ih, value, ih->data->gridColor);
}

static char* iMglPlotGetGridColorAttrib(Ihandle* ih)
{
  return iMglPlotReturnColor(ih->data->gridColor);
}

static int iMglPlotSetBoxColorAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetColor(ih, value, ih->data->boxColor);
}

static char* iMglPlotGetBoxColorAttrib(Ihandle* ih)
{
  return iMglPlotReturnColor(ih->data->boxColor);
}

static int iMglPlotSetLineStyle(Ihandle* ih, const char* value, char &linestyle)
{
  char old_linestyle = linestyle;

  if (!value || iupStrEqualNoCase(value, "CONTINUOUS") || iupStrEqualNoCase(value, "SOLID"))
    linestyle = '-';
  else if (iupStrEqualNoCase(value, "LONGDASHED"))
    linestyle = '|';
  else if (iupStrEqualNoCase(value, "DASHED"))
    linestyle = ';';
  else if (iupStrEqualNoCase(value, "SMALLDASHED"))
    linestyle = '=';
  else if (iupStrEqualNoCase(value, "DOTTED"))
    linestyle = ':';
  else if (iupStrEqualNoCase(value, "DASH_DOT"))
    linestyle = 'j';
  else if (iupStrEqualNoCase(value, "SMALLDASH_DOT") || 
           iupStrEqualNoCase(value, "DASH_DOT_DOT")) // for IUP compatibility
    linestyle = 'i';
  else if (iupStrEqualNoCase(value, "NONE"))
    linestyle = ' ';
  else
    linestyle = '-';  /* reset to default */

  if (old_linestyle != linestyle)
    ih->data->redraw = true;

  return 0;
}

static char* iMglPlotGetLineStyle(char linestyle)
{
  switch(linestyle)
  {
    case ' ': return "NONE";
    case '|': return "LONGDASHED";
    case ';': return "DASHED";
    case '=': return "SMALLDASHED";
    case ':': return "DOTTED";
    case 'j': return "DASH_DOT";
    case 'i': return "SMALLDASH_DOT";
    default:  return "CONTINUOUS";
  }
}

static int iMglPlotSetGridLineStyleAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetLineStyle(ih, value, ih->data->gridLineStyle);
}

static char* iMglPlotGetGridLineStyleAttrib(Ihandle* ih)
{
  return iMglPlotGetLineStyle(ih->data->gridLineStyle);
}

static int iMglPlotSetGridAttrib(Ihandle* ih, const char* value)
{
  if (iupStrEqualNoCase(value, "VERTICAL") || iupStrEqualNoCase(value, "X"))
    ih->data->gridShow = "X";
  else if (iupStrEqualNoCase(value, "HORIZONTAL") || iupStrEqualNoCase(value, "Y"))
    ih->data->gridShow = "Y";
  else if (iupStrEqualNoCase(value, "Z"))
    ih->data->gridShow = "Z";
  else if (iupStrEqualNoCase(value, "XY"))
    ih->data->gridShow = "XY";
  else if (iupStrEqualNoCase(value, "XZ"))
    ih->data->gridShow = "XZ";
  else if (iupStrEqualNoCase(value, "YZ"))
    ih->data->gridShow = "YZ";
  else if (iupStrEqualNoCase(value, "YES") || iupStrEqualNoCase(value, "XYZ"))
    ih->data->gridShow = "XYZ";
  else                                
    ih->data->gridShow = NULL;

  ih->data->redraw = true;
  return 0;
}

static char* iMglPlotGetGridAttrib(Ihandle* ih)
{
  if (ih->data->gridShow)
    return ih->data->gridShow;
  else
    return "NO";
}

static char* iMglPlotGetCountAttrib(Ihandle* ih)
{
  return iupStrReturnInt(ih->data->dataSetCount);
}

static int iMglPlotSetCurrentAttrib(Ihandle* ih, const char* value)
{
  int ii;

  ih->data->dataSetCurrent = -1;

  if (iupStrToInt(value, &ii))
  {
    if (ii>=0 && ii<ih->data->dataSetCount)
    {
      ih->data->dataSetCurrent = ii;
      ih->data->redraw = true;
    }
  }

  return 0;
}

static char* iMglPlotGetCurrentAttrib(Ihandle* ih)
{
  return iupStrReturnInt(ih->data->dataSetCurrent);
}

static void iMglPlotRemoveDataSet(IdataSet* ds)
{
  free(ds->dsLegend);
  free(ds->dsMode);

  if (ds->dsNames)
  {
    int j;
    char** dsNames = (char**)iupArrayGetData(ds->dsNames);
    int count = iupArrayCount(ds->dsNames);
    for (j=0; j<count; j++)
      free(dsNames[j]);

    iupArrayDestroy(ds->dsNames);
  }

  if (ds->dsX)
    delete ds->dsX;
  if (ds->dsY)
    delete ds->dsY;
  if (ds->dsZ)
    delete ds->dsZ;

  memset(ds, 0, sizeof(IdataSet));
}

static int iMglPlotSetRemoveAttrib(Ihandle* ih, const char* value)
{
  int ii;
  if (iupStrToInt(value, &ii))
  {
    int i;

    if(ii > ih->data->dataSetCount || ii < 0)
      return 0;

    iMglPlotRemoveDataSet(&ih->data->dataSet[ii]);

    for(i = ii; i < ih->data->dataSetCount-1; i++)
      ih->data->dataSet[i] = ih->data->dataSet[i+1];

    memset(&ih->data->dataSet[ih->data->dataSetCount-1], 0, sizeof(IdataSet));

    ih->data->dataSetCount--;

    if (ih->data->dataSetCurrent > ih->data->dataSetCount-1)
      ih->data->dataSetCurrent = ih->data->dataSetCount-1;

    ih->data->redraw = true;
  }
  return 0;
}

static int iMglPlotSetClearAttrib(Ihandle* ih, const char* value)
{
  int i;
  for(i = 0; i < ih->data->dataSetCount; i++)
    iMglPlotRemoveDataSet(&ih->data->dataSet[i]);
  ih->data->dataSetCount = 0;
  ih->data->dataSetCurrent = -1;
  ih->data->redraw = true;
  (void)value;
  return 0;
}

static int iMglPlotSetDSRearrangeAttrib(Ihandle* ih, const char* value)
{
  int i;
  IdataSet* ds;

  if (ih->data->dataSetCurrent==-1)
    return 0;

  ds = &ih->data->dataSet[ih->data->dataSetCurrent];

  // Must be Planar data
  if (ds->dsY || ds->dsZ || ds->dsX->nz != 1)
    return 0;
  if (ds->dsX->ny == 1)
    return 0;

  // Now nx!=1 and ny!=1, so rearrange data from ds->dsX to ds->dsY
  if (ds->dsX->ny == 2 || ds->dsX->ny == 3)
  {
    ds->dsCount = ds->dsX->nx;
    ds->dsDim = 2;
    ds->dsY = new mglData(ds->dsCount);
    mglData* dsX = new mglData(ds->dsCount);
    double* ax = ds->dsX->a;
    double* ay = ax + ds->dsCount;
    double* az = NULL;
    double* x = dsX->a;
    double* y = ds->dsY->a;
    double* z = NULL;
    if (ds->dsX->ny == 3)
    {
      ds->dsZ = new mglData(ds->dsCount);
      z = ds->dsZ->a;
      az = ay + ds->dsCount;
      ds->dsDim = 3;
    }

    memcpy(x, ax, ds->dsCount*sizeof(double));
    memcpy(y, ay, ds->dsCount*sizeof(double));
    if (z) memcpy(z, az, ds->dsCount*sizeof(double));

    delete ds->dsX;
    ds->dsX = dsX;
  }
  else if (ds->dsX->nx == 2 || ds->dsX->nx == 3)
  {
    ds->dsCount = ds->dsX->ny;
    ds->dsDim = 2;
    ds->dsY = new mglData(ds->dsCount);
    mglData* dsX = new mglData(ds->dsCount);
    double* a = ds->dsX->a;
    double* x = dsX->a;
    double* y = ds->dsY->a;
    double* z = NULL;
    if (ds->dsX->nx == 3)
    {
      ds->dsZ = new mglData(ds->dsCount);
      z = ds->dsZ->a;
      ds->dsDim = 3;
    }

    for (i=0; i<ds->dsCount; i++)
    {
      *x++ = *a++;
      *y++ = *a++;
      if (z) *z++ = *a++;
    }

    delete ds->dsX;
    ds->dsX = dsX;
  }
  else if (ds->dsX->nx == 1)
  {
    ds->dsCount = ds->dsX->ny;
    ds->dsX->nx = ds->dsCount;
    ds->dsX->ny = 1;
  }

  (void)value;
  return 0;
}

static int iMglPlotSetDSSplitAttrib(Ihandle* ih, const char* value)
{
  int old_current;
  IdataSet* ds;

  if (ih->data->dataSetCurrent==-1)
    return 0;

  ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  
  // Must be Planar data
  if (ds->dsY || ds->dsZ || ds->dsX->nz != 1)
    return 0;
  if (ds->dsX->ny == 1)
    return 0;

  old_current = ih->data->dataSetCurrent;

  // Now nx!=1 and ny!=1, so rearrange data from ds->dsX to ds->dsY
  if (ds->dsX->ny == 2 || ds->dsX->ny == 3)
  {
    ds->dsCount = ds->dsX->nx;

    double* ax = ds->dsX->a;
    double* ay = ax + ds->dsCount;

    int dsy = IupMglPlotNewDataSet(ih, 1);
    IupMglPlotSet1D(ih, dsy, NULL, ay, ds->dsCount);

    if (ds->dsX->ny == 3)
    {
      double* az = ay + ds->dsCount;
      int dsz = IupMglPlotNewDataSet(ih, 1);
      IupMglPlotSet1D(ih, dsz, NULL, az, ds->dsCount);
    }

    ds->dsDim = 1;
    ds->dsX->ny = 1;
  }

  ih->data->dataSetCurrent = old_current;

  (void)value;
  return 0;
}

static int iMglPlotSetDSLineStyleAttrib(Ihandle* ih, const char* value)
{
  IdataSet* ds;

  if (ih->data->dataSetCurrent==-1)
    return 0;

  ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return iMglPlotSetLineStyle(ih, value, ds->dsLineStyle);
}

static char* iMglPlotGetDSLineStyleAttrib(Ihandle* ih)
{
  IdataSet* ds;
  if (ih->data->dataSetCurrent==-1)
    return NULL;

  ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return iMglPlotGetLineStyle(ds->dsLineStyle);
}

static int iMglPlotSetDSLineWidthAttrib(Ihandle* ih, const char* value)
{
  if (ih->data->dataSetCurrent==-1)
    return 0;

  IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return iMglPlotSetInt(ih, value, ds->dsLineWidth);
}

static char* iMglPlotGetDSLineWidthAttrib(Ihandle* ih)
{
  if (ih->data->dataSetCurrent==-1)
    return 0;
  else
  {
    IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
    return iupStrReturnInt(ds->dsLineWidth);
  }
}

static int iMglPlotSetMarkStyle(Ihandle* ih, const char* value, char& markstyle)
{
  char old_markstyle = markstyle;

  if (!value || iupStrEqualNoCase(value, "X"))
    markstyle = 'x';
  else if (iupStrEqualNoCase(value, "STAR"))
    markstyle = '*';
  else if (iupStrEqualNoCase(value, "CIRCLE"))
    markstyle = 'O';  // In fact "#o", we will fix it later in iMglPlotAddStyleMark
  else if (iupStrEqualNoCase(value, "PLUS"))
    markstyle = '+';
  else if (iupStrEqualNoCase(value, "BOX"))
    markstyle = 'S';  // In fact "#s", we will fix it later
  else if (iupStrEqualNoCase(value, "DIAMOND"))
    markstyle = 'D';  // In fact "#d", we will fix it later
  else if (iupStrEqualNoCase(value, "HOLLOW_CIRCLE"))
    markstyle = 'o';
  else if (iupStrEqualNoCase(value, "HOLLOW_BOX"))
    markstyle = 's';
  else if (iupStrEqualNoCase(value, "HOLLOW_DIAMOND"))
    markstyle = 'd';
  else if (iupStrEqualNoCase(value, "DOT"))
    markstyle = '.';
  else if (iupStrEqualNoCase(value, "ARROW_UP"))
    markstyle = '^';  // In fact "#^", we will fix it later
  else if (iupStrEqualNoCase(value, "ARROW_DOWN"))
    markstyle = 'V';  // In fact "#V", we will fix it later
  else if (iupStrEqualNoCase(value, "ARROW_LEFT"))
    markstyle = '<';  // In fact "#<", we will fix it later
  else if (iupStrEqualNoCase(value, "ARROW_RIGHT"))
    markstyle = '>';  // In fact "#>", we will fix it later
  else
    markstyle = 'x';  /* reset to default */
  
  if (old_markstyle != markstyle)
    ih->data->redraw = true;

  return 0;
}

static int iMglPlotSetDSMarkStyleAttrib(Ihandle* ih, const char* value)
{
  IdataSet* ds;

  if (ih->data->dataSetCurrent==-1)
    return 0;

  ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return iMglPlotSetMarkStyle(ih, value, ds->dsMarkStyle);
}

static char* iMglPlotGetDSMarkStyleAttrib(Ihandle* ih)
{
  IdataSet* ds;

  if (ih->data->dataSetCurrent==-1)
    return NULL;

  ds = &ih->data->dataSet[ih->data->dataSetCurrent];

  switch(ds->dsMarkStyle)
  {
    case '*': return "STAR";
    case 'O': return "CIRCLE";
    case 'x': return "X";
    case 'S': return "BOX";
    case 'D': return "DIAMOND";
    case 'o': return "HOLLOW_CIRCLE";
    case 's': return "HOLLOW_BOX";
    case 'd': return "HOLLOW_DIAMOND";
    case '^': return "ARROW_UP";
    case 'V': return "ARROW_DOWN";
    case '<': return "ARROW_LEFT";
    case '>': return "ARROW_RIGHT";
    case '.': return "DOT";
    default: return "PLUS";
  }
}

static int iMglPlotSetDSMarkSizeAttrib(Ihandle* ih, const char* value)
{
  if (ih->data->dataSetCurrent==-1)
    return 0;

  IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return iMglPlotSetDouble(ih, value, ds->dsMarkSize, 1.0);
}

static char* iMglPlotGetDSMarkSizeAttrib(Ihandle* ih)
{
  if (ih->data->dataSetCurrent==-1)
    return NULL;
  else
  {
    IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
    return iupStrReturnDouble(ds->dsMarkSize);
  }
}

static int iMglPlotSetDSColorAttrib(Ihandle* ih, const char* value)
{
  if (ih->data->dataSetCurrent==-1)
    return 0;

  IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  iMglPlotSetColor(ih, value, ds->dsColor);

  if (mgl_isnan(ds->dsColor.r) || mgl_isnan(ds->dsColor.g) || mgl_isnan(ds->dsColor.b))
    iMglPlotSetDsColorDefault(ds->dsColor, ih->data->dataSetCurrent);

  return 0;
}

static char* iMglPlotGetDSColorAttrib(Ihandle* ih)
{
  if (ih->data->dataSetCurrent==-1)
    return NULL;

  IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return iMglPlotReturnColor(ds->dsColor);
}

static int iMglPlotSetDSModeAttrib(Ihandle* ih, const char* value)
{
  IdataSet* ds;

  if (ih->data->dataSetCurrent==-1)
    return 0;

  ds = &ih->data->dataSet[ih->data->dataSetCurrent];

  free(ds->dsMode);
  if (value)
    ds->dsMode = iupStrDup(value);
  else
    ds->dsMode = iupStrDup("LINE");

  ih->data->redraw = true;
  return 0;
}

static char* iMglPlotGetDSModeAttrib(Ihandle* ih)
{
  IdataSet* ds;
  if (ih->data->dataSetCurrent==-1)
    return NULL;

  ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return ds->dsMode;
}

static int iMglPlotSetDSLegendAttrib(Ihandle* ih, const char* value)
{
  IdataSet* ds;

  if (ih->data->dataSetCurrent==-1)
    return 0;

  ds = &ih->data->dataSet[ih->data->dataSetCurrent];

  free(ds->dsLegend);

  if (value)
    ds->dsLegend = iupStrDup(value);
  else
    ds->dsLegend = iMglPlotDefaultLegend(ih->data->dataSetCurrent);

  ih->data->redraw = true;
  return 0;
}

static char* iMglPlotGetDSLegendAttrib(Ihandle* ih)
{
  IdataSet* ds;

  if (ih->data->dataSetCurrent==-1)
    return NULL;

  ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return ds->dsLegend;
}

static int iMglPlotSetDSShowValuesAttrib(Ihandle* ih, const char* value)
{
  if (ih->data->dataSetCurrent==-1)
    return 0;

  IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return iMglPlotSetBoolean(ih, value, ds->dsShowValues);
}

static char* iMglPlotGetDSShowValuesAttrib(Ihandle* ih)
{
  if (ih->data->dataSetCurrent==-1)
    return NULL;

  IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return iupStrReturnBoolean(ds->dsShowValues);
}

static int iMglPlotSetDSShowMarksAttrib(Ihandle* ih, const char* value)
{
  if (ih->data->dataSetCurrent==-1)
    return 0;

  IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return iMglPlotSetBoolean(ih, value, ds->dsShowMarks);
}

static char* iMglPlotGetDSShowMarksAttrib(Ihandle* ih)
{
  if (ih->data->dataSetCurrent==-1)
    return NULL;

  IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  return iupStrReturnBoolean(ds->dsShowMarks);
}

static int iMglPlotSetDSRemoveAttrib(Ihandle* ih, const char* value)
{
  IdataSet* ds;
  int index, remove_count=1;

  if (ih->data->dataSetCurrent==-1)
    return 0;

  ds = &ih->data->dataSet[ih->data->dataSetCurrent];
  if (iMglPlotIsPlanarOrVolumetricData(ds))
    return 0;

  if (iupStrToIntInt(value, &index, &remove_count, ':'))
  {
    if(index < 0 || index+remove_count > ds->dsCount)
      return 0;

    if (index+remove_count < ds->dsCount)  /* if equal, remove at the end, no need to move data */
    {
      memmove(ds->dsX->a + index, ds->dsX->a + (index + remove_count), sizeof(double)*(ds->dsCount - (index + remove_count)));
      if (ds->dsY)
        memmove(ds->dsY->a + index, ds->dsY->a + (index + remove_count), sizeof(double)*(ds->dsCount - (index + remove_count)));
      if (ds->dsZ)
        memmove(ds->dsZ->a + index, ds->dsZ->a + (index + remove_count), sizeof(double)*(ds->dsCount - (index + remove_count)));
    }
    ds->dsX->Crop(ds->dsCount, 1, 'x');
    if (ds->dsY)
      ds->dsY->Crop(ds->dsCount, 1, 'y');
    if (ds->dsZ)
      ds->dsZ->Crop(ds->dsCount, 1, 'z');

    ds->dsCount -= remove_count;

    if (ds->dsNames)
    {
      char** dsNames = (char**)iupArrayGetData(ds->dsNames);
      free(dsNames[index]);
      iupArrayRemove(ds->dsNames, index, remove_count);
    }

    ih->data->redraw = true;
  }
  return 0;
}

static char* iMglPlotGetDSCountAttrib(Ihandle* ih)
{
  if (ih->data->dataSetCurrent==-1)
    return NULL;
  else
  {
    IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
    return iupStrReturnInt(ds->dsCount);
  }
}

static char* iMglPlotGetDSDimAttrib(Ihandle* ih)
{
  if (ih->data->dataSetCurrent==-1)
    return NULL;
  else
  {
    IdataSet* ds = &ih->data->dataSet[ih->data->dataSetCurrent];
    if (iMglPlotIsPlanarOrVolumetricData(ds))
      return iupStrReturnStrf("%dx%dx%d", (int)ds->dsX->nx, (int)ds->dsX->ny, (int)ds->dsX->nz);
    else
      return iupStrReturnInt(ds->dsDim);
  }
}

static int iMglPlotSetBoxAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->Box);
}

static char* iMglPlotGetBoxAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->Box);
}

static int iMglPlotSetBoxTicksAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->boxTicks);
}

static char* iMglPlotGetBoxTicksAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->boxTicks);
}

static int iMglPlotSetAxisLabelPosition(Ihandle* ih, const char* value, int& pos)
{
  int old_pos = pos;

  if (iupStrEqualNoCase(value, "CENTER"))
    pos = 0;
  else if (iupStrEqualNoCase(value, "MIN"))
    pos = -1;
  else if (iupStrEqualNoCase(value, "MAX"))
    pos = 1;

  if (old_pos != pos)
    ih->data->redraw = true;

  return 0;
}

static char* iMglPlotGetAxisLabelPosition(int pos)
{
  if (pos == 0)
    return "CENTER";
  if (pos == 1)
    return "MAX";
  if (pos == -1)
    return "MIN";
  return NULL;
}

static int iMglPlotSetAxisXLabelPositionAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetAxisLabelPosition(ih, value, ih->data->axisX.axLabelPos);
}

static int iMglPlotSetAxisYLabelPositionAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetAxisLabelPosition(ih, value, ih->data->axisY.axLabelPos);
}

static int iMglPlotSetAxisZLabelPositionAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetAxisLabelPosition(ih, value, ih->data->axisZ.axLabelPos);
}

static char* iMglPlotGetAxisXLabelPositionAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisLabelPosition(ih->data->axisX.axLabelPos);
}

static char* iMglPlotGetAxisYLabelPositionAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisLabelPosition(ih->data->axisY.axLabelPos);
}

static char* iMglPlotGetAxisZLabelPositionAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisLabelPosition(ih->data->axisZ.axLabelPos);
}

static int iMglPlotSetAxisXLabelRotationAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisX.axLabelRotation);
}

static int iMglPlotSetAxisYLabelRotationAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisY.axLabelRotation);
}

static int iMglPlotSetAxisZLabelRotationAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisZ.axLabelRotation);
}

static char* iMglPlotGetAxisXLabelRotationAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axLabelRotation);
}

static char* iMglPlotGetAxisYLabelRotationAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axLabelRotation);
}

static char* iMglPlotGetAxisZLabelRotationAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axLabelRotation);
}

static int iMglPlotSetAxisXLabelCenteredAttrib(Ihandle* ih, const char* value)
{
  if (iupStrBoolean(value))
    return iMglPlotSetAxisLabelPosition(ih, "CENTER", ih->data->axisX.axLabelPos);
  else 
    return iMglPlotSetAxisLabelPosition(ih, "MAX", ih->data->axisX.axLabelPos);
}

static int iMglPlotSetAxisYLabelCenteredAttrib(Ihandle* ih, const char* value)
{
  if (iupStrBoolean(value))
    return iMglPlotSetAxisLabelPosition(ih, "CENTER", ih->data->axisY.axLabelPos);
  else 
    return iMglPlotSetAxisLabelPosition(ih, "MAX", ih->data->axisY.axLabelPos);
}

static int iMglPlotSetAxisZLabelCenteredAttrib(Ihandle* ih, const char* value)
{
  if (iupStrBoolean(value))
    return iMglPlotSetAxisLabelPosition(ih, "CENTER", ih->data->axisZ.axLabelPos);
  else 
    return iMglPlotSetAxisLabelPosition(ih, "MAX", ih->data->axisZ.axLabelPos);
}

static char* iMglPlotGetAxisXLabelCenteredAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axLabelPos==0? true: false);
}

static char* iMglPlotGetAxisYLabelCenteredAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axLabelPos==0? true: false);
}

static char* iMglPlotGetAxisZLabelCenteredAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axLabelPos==0? true: false);
}

static int iMglPlotSetAxisXColorAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetColor(ih, value, ih->data->axisX.axColor);
}

static int iMglPlotSetAxisYColorAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetColor(ih, value, ih->data->axisY.axColor);
}

static int iMglPlotSetAxisZColorAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetColor(ih, value, ih->data->axisZ.axColor);
}

static char* iMglPlotGetAxisXColorAttrib(Ihandle* ih)
{
  return iMglPlotReturnColor(ih->data->axisX.axColor);
}

static char* iMglPlotGetAxisYColorAttrib(Ihandle* ih)
{
  return iMglPlotReturnColor(ih->data->axisY.axColor);
}

static char* iMglPlotGetAxisZColorAttrib(Ihandle* ih)
{
  return iMglPlotReturnColor(ih->data->axisZ.axColor);
}

static int iMglPlotSetAxisXFontSizeAttrib(Ihandle* ih, const char* value)
{
  if (!value)
  {
    ih->data->alpha = 0.5;
    ih->data->redraw = true;
    return 0;
  }
  else
   return iMglPlotSetDouble(ih, value, ih->data->axisX.axLabelFontSizeFactor, 0.8);
}

static int iMglPlotSetAxisYFontSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisY.axLabelFontSizeFactor, 0.8);
}

static int iMglPlotSetAxisZFontSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisZ.axLabelFontSizeFactor, 0.8);
}

static char* iMglPlotGetAxisXFontSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisX.axLabelFontSizeFactor);
}

static char* iMglPlotGetAxisYFontSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisY.axLabelFontSizeFactor);
}

static char* iMglPlotGetAxisZFontSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisZ.axLabelFontSizeFactor);
}

static int iMglPlotSetAxisXFontStyleAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetFontStyle(ih, value, ih->data->axisX.axLabelFontStyle);
}

static int iMglPlotSetAxisYFontStyleAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetFontStyle(ih, value, ih->data->axisY.axLabelFontStyle);
}

static int iMglPlotSetAxisZFontStyleAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetFontStyle(ih, value, ih->data->axisZ.axLabelFontStyle);
}

static char* iMglPlotGetAxisXFontStyleAttrib(Ihandle* ih)
{
  return iMglPlotGetFontStyle(ih->data->axisX.axLabelFontStyle);
}

static char* iMglPlotGetAxisYFontStyleAttrib(Ihandle* ih)
{
  return iMglPlotGetFontStyle(ih->data->axisY.axLabelFontStyle);
}

static char* iMglPlotGetAxisZFontStyleAttrib(Ihandle* ih)
{
  return iMglPlotGetFontStyle(ih->data->axisZ.axLabelFontStyle);
}

static int iMglPlotSetAxisXTickFontSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisX.axTickFontSizeFactor, 0.8);
}

static int iMglPlotSetAxisYTickFontSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisY.axTickFontSizeFactor, 0.8);
}

static int iMglPlotSetAxisZTickFontSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisZ.axTickFontSizeFactor, 0.8);
}

static char* iMglPlotGetAxisXTickFontSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisX.axTickFontSizeFactor);
}

static char* iMglPlotGetAxisYTickFontSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisY.axTickFontSizeFactor);
}

static char* iMglPlotGetAxisZTickFontSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisZ.axTickFontSizeFactor);
}

static int iMglPlotSetAxisXTickFontStyleAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetFontStyle(ih, value, ih->data->axisX.axTickFontStyle);
}

static int iMglPlotSetAxisYTickFontStyleAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetFontStyle(ih, value, ih->data->axisY.axTickFontStyle);
}

static int iMglPlotSetAxisZTickFontStyleAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetFontStyle(ih, value, ih->data->axisZ.axTickFontStyle);
}

static char* iMglPlotGetAxisXTickFontStyleAttrib(Ihandle* ih)
{
  return iMglPlotGetFontStyle(ih->data->axisX.axTickFontStyle);
}

static char* iMglPlotGetAxisYTickFontStyleAttrib(Ihandle* ih)
{
  return iMglPlotGetFontStyle(ih->data->axisY.axTickFontStyle);
}

static char* iMglPlotGetAxisZTickFontStyleAttrib(Ihandle* ih)
{
  return iMglPlotGetFontStyle(ih->data->axisZ.axTickFontStyle);
}

static int iMglPlotSetAxisXTickMinorSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisX.axTickMinorSizeFactor, 1.0);
}

static int iMglPlotSetAxisYTickMinorSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisY.axTickMinorSizeFactor, 1.0);
}

static int iMglPlotSetAxisZTickMinorSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisZ.axTickMinorSizeFactor, 1.0);
}

static char* iMglPlotGetAxisXTickMinorSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisX.axTickMinorSizeFactor);
}

static char* iMglPlotGetAxisYTickMinorSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisY.axTickMinorSizeFactor);
}

static char* iMglPlotGetAxisZTickMinorSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisZ.axTickMinorSizeFactor);
}

static int iMglPlotSetAxisXTickMajorSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisX.axTickMajorSize, 0.02);
}

static int iMglPlotSetAxisYTickMajorSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisY.axTickMajorSize, 0.02);
}

static int iMglPlotSetAxisZTickMajorSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisZ.axTickMajorSize, 0.02);
}

static char* iMglPlotGetAxisXTickMajorSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisX.axTickMajorSize);
}

static char* iMglPlotGetAxisYTickMajorSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisY.axTickMajorSize);
}

static char* iMglPlotGetAxisZTickMajorSizeAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisZ.axTickMajorSize);
}

static int iMglPlotSetAxisXTickMajorSpanAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisX.axTickMajorSpan, -5.0);
}

static int iMglPlotSetAxisYTickMajorSpanAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisY.axTickMajorSpan, -5.0);
}

static int iMglPlotSetAxisZTickMajorSpanAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->axisZ.axTickMajorSpan, -5.0);
}

static char* iMglPlotGetAxisXTickMajorSpanAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisX.axTickMajorSpan);
}

static char* iMglPlotGetAxisYTickMajorSpanAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisY.axTickMajorSpan);
}

static char* iMglPlotGetAxisZTickMajorSpanAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisZ.axTickMajorSpan);
}

static char* iMglPlotSetAxisScale(Ihandle* ih, const char* value, char dir)
{
  const char* scale;
  if (!value || iupStrEqualNoCase(value, "LIN"))
    scale = NULL;
  else if(iupStrEqualNoCase(value, "LOG10"))
    scale = (dir=='x')? "lg(x)": (dir=='y'? "lg(y)": "lg(z)");
  else if(iupStrEqualNoCase(value, "LOG2"))
    scale = (dir=='x')? "log(x, 2)": (dir=='y'? "log(y, 2)": "log(z, 2)");
  else if(iupStrEqualNoCase(value, "LOGN"))
    scale = (dir=='x')? "ln(x)": (dir=='y'? "ln(y)": "ln(z)");
  else
    scale = NULL;

  ih->data->redraw = true;
  return (char*)scale;
}

static int iMglPlotSetAxisXScaleAttrib(Ihandle* ih, const char* value)
{
  ih->data->axisX.axScale = iMglPlotSetAxisScale(ih, value, 'x');
  return 0;
}

static int iMglPlotSetAxisYScaleAttrib(Ihandle* ih, const char* value)
{
  ih->data->axisY.axScale = iMglPlotSetAxisScale(ih, value, 'y');
  return 0;
}

static int iMglPlotSetAxisZScaleAttrib(Ihandle* ih, const char* value)
{
  ih->data->axisZ.axScale = iMglPlotSetAxisScale(ih, value, 'z');
  return 0;
}

static char* iMglPlotGetAxisScale(const char* scale)
{
  if (!scale)
    return "LIN";
  else if (strstr(scale, "lg"))
    return "LOG10";
  else if (strstr(scale, "log"))
    return "LOG2";
  else if (strstr(scale, "ln"))
    return "LOGN";
  return NULL;
}

static char* iMglPlotGetAxisXScaleAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisScale(ih->data->axisX.axScale);
}

static char* iMglPlotGetAxisYScaleAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisScale(ih->data->axisY.axScale);
}

static char* iMglPlotGetAxisZScaleAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisScale(ih->data->axisZ.axScale);
}

static int iMglPlotSetAxisXReverseAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisX.axReverse);
}

static int iMglPlotSetAxisYReverseAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisY.axReverse);
}

static int iMglPlotSetAxisZReverseAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisZ.axReverse);
}

static char* iMglPlotGetAxisXReverseAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axReverse);
}

static char* iMglPlotGetAxisYReverseAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axReverse);
}

static char* iMglPlotGetAxisZReverseAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axReverse);
}

static int iMglPlotSetAxisXShowAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisX.axShow);
}

static int iMglPlotSetAxisYShowAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisY.axShow);
}

static int iMglPlotSetAxisZShowAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisZ.axShow);
}

static char* iMglPlotGetAxisXShowAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axShow);
}

static char* iMglPlotGetAxisYShowAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axShow);
}

static char* iMglPlotGetAxisZShowAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axShow);
}

static int iMglPlotSetAxisXShowArrowAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisX.axShowArrow);
}

static int iMglPlotSetAxisYShowArrowAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisY.axShowArrow);
}

static int iMglPlotSetAxisZShowArrowAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisZ.axShowArrow);
}

static char* iMglPlotGetAxisXShowArrowAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axShowArrow);
}

static char* iMglPlotGetAxisYShowArrowAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axShowArrow);
}

static char* iMglPlotGetAxisZShowArrowAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axShowArrow);
}

static int iMglPlotSetAxisXTickShowValuesAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisX.axTickShowValues);
}

static int iMglPlotSetAxisYTickShowValuesAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisY.axTickShowValues);
}

static int iMglPlotSetAxisZTickShowValuesAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisZ.axTickShowValues);
}

static char* iMglPlotGetAxisXTickShowValuesAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axTickShowValues);
}

static char* iMglPlotGetAxisYTickShowValuesAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axTickShowValues);
}

static char* iMglPlotGetAxisZTickShowValuesAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axTickShowValues);
}

static int iMglPlotSetAxisXTickAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisX.axTickShow);
}

static int iMglPlotSetAxisYTickAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisY.axTickShow);
}

static int iMglPlotSetAxisZTickAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisZ.axTickShow);
}

static char* iMglPlotGetAxisXTickAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axTickShow);
}

static char* iMglPlotGetAxisYTickAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axTickShow);
}

static char* iMglPlotGetAxisZTickAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axTickShow);
}

static int iMglPlotSetAxisXTickAutoSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisX.axTickAutoSize);
}

static int iMglPlotSetAxisYTickAutoSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisY.axTickAutoSize);
}

static int iMglPlotSetAxisZTickAutoSizeAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisZ.axTickAutoSize);
}

static char* iMglPlotGetAxisXTickAutoSizeAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axTickAutoSize);
}

static char* iMglPlotGetAxisYTickAutoSizeAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axTickAutoSize);
}

static char* iMglPlotGetAxisZTickAutoSizeAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axTickAutoSize);
}

static int iMglPlotSetAxisXTickAutoAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisX.axTickAutoSpace);
}

static int iMglPlotSetAxisYTickAutoAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisY.axTickAutoSpace);
}

static int iMglPlotSetAxisZTickAutoAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisZ.axTickAutoSpace);
}

static char* iMglPlotGetAxisXTickAutoAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axTickAutoSpace);
}

static char* iMglPlotGetAxisYTickAutoAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axTickAutoSpace);
}

static char* iMglPlotGetAxisZTickAutoAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axTickAutoSpace);
}

static int iMglPlotSetAxisXTickValuesRotationAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisX.axTickValuesRotation);
}

static int iMglPlotSetAxisYTickValuesRotationAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisY.axTickValuesRotation);
}

static int iMglPlotSetAxisZTickValuesRotationAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisZ.axTickValuesRotation);
}

static char* iMglPlotGetAxisXTickValuesRotationAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axTickValuesRotation);
}

static char* iMglPlotGetAxisYTickValuesRotationAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axTickValuesRotation);
}

static char* iMglPlotGetAxisZTickValuesRotationAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axTickValuesRotation);
}

static int iMglPlotSetAxisXTickMinorDivisionAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetInt(ih, value, ih->data->axisX.axTickMinorDivision);
}

static int iMglPlotSetAxisYTickMinorDivisionAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetInt(ih, value, ih->data->axisY.axTickMinorDivision);
}

static int iMglPlotSetAxisZTickMinorDivisionAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetInt(ih, value, ih->data->axisZ.axTickMinorDivision);
}

static char* iMglPlotGetAxisXTickMinorDivisionAttrib(Ihandle* ih)
{
  return iupStrReturnInt(ih->data->axisX.axTickMinorDivision);
}

static char* iMglPlotGetAxisYTickMinorDivisionAttrib(Ihandle* ih)
{
  return iupStrReturnInt(ih->data->axisY.axTickMinorDivision);
}

static char* iMglPlotGetAxisZTickMinorDivisionAttrib(Ihandle* ih)
{
  return iupStrReturnInt(ih->data->axisZ.axTickMinorDivision);
}

static int iMglPlotSetAxisXAutoMinAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisX.axAutoScaleMin);
}

static int iMglPlotSetAxisYAutoMinAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisY.axAutoScaleMin);
}

static int iMglPlotSetAxisZAutoMinAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisZ.axAutoScaleMin);
}

static char* iMglPlotGetAxisXAutoMinAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axAutoScaleMin);
}

static char* iMglPlotGetAxisYAutoMinAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axAutoScaleMin);
}

static char* iMglPlotGetAxisZAutoMinAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axAutoScaleMin);
}

static int iMglPlotSetAxisXAutoMaxAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisX.axAutoScaleMax);
}

static int iMglPlotSetAxisYAutoMaxAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisY.axAutoScaleMax);
}

static int iMglPlotSetAxisZAutoMaxAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->axisZ.axAutoScaleMax);
}

static char* iMglPlotGetAxisXAutoMaxAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisX.axAutoScaleMax);
}

static char* iMglPlotGetAxisYAutoMaxAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisY.axAutoScaleMax);
}

static char* iMglPlotGetAxisZAutoMaxAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->axisZ.axAutoScaleMax);
}

static int iMglPlotSetAxisXMinAttrib(Ihandle* ih, const char* value)
{
  ih->data->axisX.axAutoScaleMin = false;
  return iMglPlotSetDouble(ih, value, ih->data->axisX.axMin, -1.0);
}

static int iMglPlotSetAxisYMinAttrib(Ihandle* ih, const char* value)
{
  ih->data->axisY.axAutoScaleMin = false;
  return iMglPlotSetDouble(ih, value, ih->data->axisY.axMin, -1.0);
}

static int iMglPlotSetAxisZMinAttrib(Ihandle* ih, const char* value)
{
  ih->data->axisZ.axAutoScaleMin = false;
  return iMglPlotSetDouble(ih, value, ih->data->axisZ.axMin, -1.0);
}

static char* iMglPlotGetAxisXMinAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisX.axMin);
}

static char* iMglPlotGetAxisYMinAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisY.axMin);
}

static char* iMglPlotGetAxisZMinAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisZ.axMin);
}

static int iMglPlotSetAxisXMaxAttrib(Ihandle* ih, const char* value)
{
  ih->data->axisX.axAutoScaleMax = false;
  return iMglPlotSetDouble(ih, value, ih->data->axisX.axMax, 1.0);
}

static int iMglPlotSetAxisYMaxAttrib(Ihandle* ih, const char* value)
{
  ih->data->axisY.axAutoScaleMax = false;
  return iMglPlotSetDouble(ih, value, ih->data->axisY.axMax, 1.0);
}

static int iMglPlotSetAxisZMaxAttrib(Ihandle* ih, const char* value)
{
  ih->data->axisZ.axAutoScaleMax = false;
  return iMglPlotSetDouble(ih, value, ih->data->axisZ.axMax, 1.0);
}

static char* iMglPlotGetAxisXMaxAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisX.axMax);
}

static char* iMglPlotGetAxisYMaxAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisY.axMax);
}

static char* iMglPlotGetAxisZMaxAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->axisZ.axMax);
}

static int iMglPlotSetAxisCrossOrigin(Ihandle* ih, const char* value, double& origin)
{
  double old_origin = origin;

  if (iupStrBoolean(value))
    origin = 0;
  else
    origin = NAN;

  if (old_origin != origin)
    ih->data->redraw = true;

  return 0;
}

static int iMglPlotSetAxisXCrossOriginAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetAxisCrossOrigin(ih, value, ih->data->axisX.axOrigin);
}

static int iMglPlotSetAxisYCrossOriginAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetAxisCrossOrigin(ih, value, ih->data->axisY.axOrigin);
}

static int iMglPlotSetAxisZCrossOriginAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetAxisCrossOrigin(ih, value, ih->data->axisZ.axOrigin);
}

static char* iMglPlotGetAxisXCrossOrigin(double origin)
{
  if (origin==0)
    return "YES";
  else if (mgl_isnan(origin))
    return "NO";
  else
    return NULL;
}

static char* iMglPlotGetAxisXCrossOriginAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisXCrossOrigin(ih->data->axisX.axOrigin);
}

static char* iMglPlotGetAxisYCrossOriginAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisXCrossOrigin(ih->data->axisY.axOrigin);
}

static char* iMglPlotGetAxisZCrossOriginAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisXCrossOrigin(ih->data->axisZ.axOrigin);
}

static int iMglPlotSetAxisOrigin(Ihandle* ih, const char* value, double& num)
{
  double old_num = num;

  if (!value)
    num = NAN;
  else
    iupStrToDouble(value, &num);

  if (old_num != num)
    ih->data->redraw = true;

  return 0;
}

static int iMglPlotSetAxisXOriginAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetAxisOrigin(ih, value, ih->data->axisX.axOrigin);
}

static int iMglPlotSetAxisYOriginAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetAxisOrigin(ih, value, ih->data->axisY.axOrigin);
}

static int iMglPlotSetAxisZOriginAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetAxisOrigin(ih, value, ih->data->axisZ.axOrigin);
}

static char* iMglPlotGetAxisOrigin(double Origin)
{
  if (!mgl_isnan(Origin))
    return iupStrReturnDouble(Origin);
  else
    return NULL;
}

static char* iMglPlotGetAxisXOriginAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisOrigin(ih->data->axisX.axOrigin);
}

static char* iMglPlotGetAxisYOriginAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisOrigin(ih->data->axisY.axOrigin);
}

static char* iMglPlotGetAxisZOriginAttrib(Ihandle* ih)
{
  return iMglPlotGetAxisOrigin(ih->data->axisZ.axOrigin);
}

static int iMglPlotSetAlphaAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetDouble(ih, value, ih->data->alpha, 0.5);
}

static char* iMglPlotGetAlphaAttrib(Ihandle* ih)
{
  return iupStrReturnDouble(ih->data->alpha);
}

static int iMglPlotSetTransparentAttrib(Ihandle* ih, const char* value)
{
  return iMglPlotSetBoolean(ih, value, ih->data->transparent);
}

static char* iMglPlotGetTransparentAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->transparent);
}

static void iMglPlotInitOpenGL2D(Ihandle* ih)
{
  IupGLMakeCurrent(ih);
  glViewport(0, 0, ih->data->w, ih->data->h);

  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();

  if (!ih->data->opengl)
  {
    glTranslatef(-1.0, 0, 0);

    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);  /* data alignment is 1 */
    glPixelZoom(1.0, -1.0);  // vertical flip image
    glRasterPos2f(0, 1.0);
  }
}

static int iMglPlotSetOpenGLAttrib(Ihandle* ih, const char* value)
{
  bool old_opengl = ih->data->opengl;
  iMglPlotSetBoolean(ih, value, ih->data->opengl);

  if (old_opengl != ih->data->opengl)
  {
    // No need to reset attrib since mgl will be used only in ACTION
    delete ih->data->mgl;
    ih->data->redraw = 1;

    if (ih->handle)
      iMglPlotInitOpenGL2D(ih);

    ih->data->mgl = new mglGraph(ih->data->opengl, ih->data->w, ih->data->h);
  }

  return 0;
}

static char* iMglPlotGetOpenGLAttrib(Ihandle* ih)
{
  return iupStrReturnBoolean(ih->data->opengl);
}

static int iMglPlotSetAntialiasAttrib(Ihandle* ih, const char* value)
{
  if (!ih->data->opengl)
    return 0;

  IupGLMakeCurrent(ih);

  if (iupStrBoolean(value))
  {
    glEnable(GL_POINT_SMOOTH);
    glEnable(GL_LINE_SMOOTH);
    glEnable(GL_POLYGON_SMOOTH);

    glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
    glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
    glHint(GL_POLYGON_SMOOTH_HINT, GL_NICEST);
  }
  else
  {
    glDisable(GL_POINT_SMOOTH);
    glDisable(GL_LINE_SMOOTH);
    glDisable(GL_POLYGON_SMOOTH);
  }

  return 0;
}

static char* iMglPlotGetAntialiasAttrib(Ihandle* ih)
{
  if (!ih->data->opengl)
    return NULL;

  IupGLMakeCurrent(ih);
  return iupStrReturnBoolean(glIsEnabled(GL_LINE_SMOOTH)==GL_TRUE);
}

static char* iMglPlotGetMglGraphAttrib(Ihandle* ih)
{
  return (char*)ih->data->mgl;
}

static int iMglPlotSetZoomAttrib(Ihandle* ih, const char* value)
{
  if (!value)
  {
    ih->data->x1 = 0;
    ih->data->y1 = 0;
    ih->data->x2 = 1.0;
    ih->data->y2 = 1.0;
  }
  else
  {
    sscanf(value, "%lf:%lf:%lf:%lf", &(ih->data->x1), &(ih->data->y1), &(ih->data->x2), &(ih->data->y2));

    if (ih->data->x1 < 0) ih->data->x1 = 0;
    if (ih->data->y1 < 0) ih->data->y1 = 0;
    if (ih->data->x2 > 1.0) ih->data->x2 = 1.0;
    if (ih->data->y2 > 1.0) ih->data->y2 = 1.0;
  }

  ih->data->redraw = true;

  return 0;
}

static char* iMglPlotGetZoomAttrib(Ihandle* ih)
{
  return iupStrReturnStrf(IUP_DOUBLE2STR ":" IUP_DOUBLE2STR ":" IUP_DOUBLE2STR ":" IUP_DOUBLE2STR, ih->data->x1, ih->data->y1, ih->data->x2, ih->data->y2);
}

static int iMglPlotSetRotateAttrib(Ihandle* ih, const char* value)
{
  if (!value)
  {
    ih->data->rotX = 0;
    ih->data->rotY = 0;
    ih->data->rotZ = 0;
  }
  else
    sscanf(value, "%lf:%lf:%lf", &(ih->data->rotX), &(ih->data->rotY), &(ih->data->rotZ));

  ih->data->redraw = true;

  return 0;
}

static char* iMglPlotGetRotateAttrib(Ihandle* ih)
{
  return iupStrReturnStrf(IUP_DOUBLE2STR ":" IUP_DOUBLE2STR ":" IUP_DOUBLE2STR, ih->data->rotX, ih->data->rotY, ih->data->rotZ);
}

static char* iMglPlotGetErrorMessageAttrib(Ihandle* ih)
{
  char* err = (char*)ih->data->mgl->Message();
  if (err && err[0] != 0)
    return err;
  else
    return NULL;
}

static int iMglPlotSetSuppressWarningAttrib(Ihandle*, const char* value)
{
  if (iupStrBoolean(value))
    mglGraph::SuppressWarn(true);
  else
    mglGraph::SuppressWarn(false);
  return 0;
}


/******************************************************************************
Additional Functions
******************************************************************************/


int IupMglPlotNewDataSet(Ihandle *ih, int dim)
{
  int ds_index;
  IdataSet* ds;

  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return -1;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return -1;

  /* Increment the number of datasets */
  ih->data->dataSetCount++;

  // Allocate memory if necessary
  if(ih->data->dataSetCount == ih->data->dataSetMaxCount)
  {
    ih->data->dataSetMaxCount += ih->data->dataSetMaxCount;
    ih->data->dataSet = (IdataSet*)realloc(ih->data->dataSet, ih->data->dataSetMaxCount*sizeof(IdataSet));
    memset(ih->data->dataSet+ih->data->dataSetCount-1, 0, sizeof(IdataSet)*(ih->data->dataSetMaxCount - (ih->data->dataSetCount-1)));
  }

  ds_index = ih->data->dataSetCount-1;
  ds = &ih->data->dataSet[ds_index];

  ds->dsDim = dim; 
  ds->dsX = new mglData();
  if (dim > 1)
    ds->dsY = new mglData();
  if (dim > 2)
    ds->dsZ = new mglData();
  ds->dsCount = 0;

  /* Initialize the default values */
  iMglPlotDataSetDefaults(ih, ds, ds_index);

  ih->data->redraw = true;

  ih->data->dataSetCurrent = ds_index;
  return ih->data->dataSetCurrent;
}

void IupMglPlotBegin(Ihandle* ih, int dim)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  Iarray* inXData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_XDATA");
  Iarray* inYData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_YDATA");
  Iarray* inZData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_ZDATA");
  Iarray* inNames = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_NAMES");

  if (inXData) { iupArrayDestroy(inXData); inXData = NULL;}
  if (inYData) { iupArrayDestroy(inYData); inYData = NULL;}
  if (inZData) { iupArrayDestroy(inZData); inZData = NULL;}
  if (inNames) iupArrayDestroy(inNames);

  inXData =  iupArrayCreate(10, sizeof(double));
  if (dim>1)
    inYData =  iupArrayCreate(10, sizeof(double));
  if (dim>2)
    inZData =  iupArrayCreate(10, sizeof(double));

  iupAttribSet(ih, "_IUP_MGLPLOT_XDATA", (char*)inXData);
  iupAttribSet(ih, "_IUP_MGLPLOT_YDATA", (char*)inYData);
  iupAttribSet(ih, "_IUP_MGLPLOT_ZDATA", (char*)inZData);
  iupAttribSet(ih, "_IUP_MGLPLOT_NAMES", NULL);
}

int IupMglPlotEnd(Ihandle* ih)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return -1;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
      !IupClassMatch(ih, "mglplot"))
    return -1;

  Iarray* inXData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_XDATA");
  Iarray* inYData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_YDATA");
  Iarray* inZData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_ZDATA");
  Iarray* inNames = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_NAMES");
  int dim = 0;
  if (inXData) dim = 1;
  if (inYData) dim = 2;
  if (inZData) dim = 3;
  if (dim == 0)
    return -1;

  // Actually add the dataset only at the End
  int ds_index = IupMglPlotNewDataSet(ih, dim);
  if (dim==1)
  {
    int j;
    char** names = NULL;
    if (inNames)
      names = (char**)iupArrayGetData(inNames);
    double* x = (double*)iupArrayGetData(inXData);
    int count = iupArrayCount(inXData);
    IupMglPlotSet1D(ih, ds_index, (const char**)names, x, count);

    if (names)
    {
      for (j = 0; j < count; j++)
        free(names[j]);
    }
  }
  else if (dim==2)
  {
    double* x = (double*)iupArrayGetData(inXData);
    double* y = (double*)iupArrayGetData(inYData);
    int count = iupArrayCount(inXData);
    IupMglPlotSet2D(ih, ds_index, x, y, count);
  }
  else if (dim==3)
  {
    double* x = (double*)iupArrayGetData(inXData);
    double* y = (double*)iupArrayGetData(inYData);
    double* z = (double*)iupArrayGetData(inZData);
    int count = iupArrayCount(inXData);
    IupMglPlotSet3D(ih, ds_index, x, y, z, count);
  }

  if (inXData) iupArrayDestroy(inXData);
  if (inYData) iupArrayDestroy(inYData);
  if (inZData) iupArrayDestroy(inZData);
  if (inNames) iupArrayDestroy(inNames);
  iupAttribSet(ih, "_IUP_MGLPLOT_XDATA", NULL);
  iupAttribSet(ih, "_IUP_MGLPLOT_YDATA", NULL);
  iupAttribSet(ih, "_IUP_MGLPLOT_ZDATA", NULL);
  iupAttribSet(ih, "_IUP_MGLPLOT_NAMES", NULL);

  return ds_index;
}

void IupMglPlotAdd1D(Ihandle* ih, const char* inName, double inX)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  Iarray* inXData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_XDATA");
  Iarray* inYData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_YDATA");
  Iarray* inZData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_ZDATA");
  int dim = 0;
  if (inXData) dim = 1;
  if (inYData) dim = 2;
  if (inZData) dim = 3;
  if (dim < 1)
    return;

  int sample_index = iupArrayCount(inXData);  /* get before incrementing the array */

  if (inName)
  {
    Iarray* inNames = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_NAMES");
    if (!inNames)
    {
      inNames =  iupArrayCreate(10, sizeof(char*));
      iupAttribSet(ih, "_IUP_MGLPLOT_NAMES", (char*)inNames);
    }

    if (inNames)
    {
      char** names = (char**)iupArrayInc(inNames);
      names[sample_index] = iupStrDup(inName);
    }
  }

  double* x = (double*)iupArrayInc(inXData);
  x[sample_index] = inX;
}

void IupMglPlotAdd2D(Ihandle* ih, double inX, double inY)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  Iarray* inXData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_XDATA");
  Iarray* inYData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_YDATA");
  Iarray* inZData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_ZDATA");
  int dim = 0;
  if (inXData) dim = 1;
  if (inYData) dim = 2;
  if (inZData) dim = 3;
  if (dim < 2)
    return;

  int sample_index = iupArrayCount(inXData);  /* get before incrementing the array */

  double* x = (double*)iupArrayInc(inXData);
  double* y = (double*)iupArrayInc(inYData);
  x[sample_index] = inX;
  y[sample_index] = inY;
}

void IupMglPlotAdd3D(Ihandle *ih, double inX, double inY, double inZ)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  Iarray* inXData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_XDATA");
  Iarray* inYData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_YDATA");
  Iarray* inZData = (Iarray*)iupAttribGet(ih, "_IUP_MGLPLOT_ZDATA");
  int dim = 0;
  if (inXData) dim = 1;
  if (inYData) dim = 2;
  if (inZData) dim = 3;
  if (dim < 3)
    return;

  int sample_index = iupArrayCount(inXData);  /* get before incrementing the array */

  double* x = (double*)iupArrayInc(inXData);
  double* y = (double*)iupArrayInc(inYData);
  double* z = (double*)iupArrayInc(inZData);
  x[sample_index] = inX;
  y[sample_index] = inY;
  z[sample_index] = inZ;
}

void IupMglPlotInsert1D(Ihandle* ih, int inIndex, int inSampleIndex, const char** inNames, const double* inX, int inCount)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  if(inIndex > (ih->data->dataSetCount-1) || inIndex < 0 || inCount<=0)
    return;

  IdataSet* ds = &ih->data->dataSet[inIndex];

  if(inSampleIndex > ds->dsCount || inSampleIndex < 0)
    return;

  ds->dsCount += inCount;
  ds->dsX->Extend(ds->dsCount);
  if (inSampleIndex < ds->dsCount-1)  // insert in the middle, open space first
    memmove(ds->dsX->a + inSampleIndex + inCount, ds->dsX->a + inSampleIndex, inCount*sizeof(double));
  memcpy(ds->dsX->a + inSampleIndex, inX, inCount*sizeof(double));

  if (inNames && ds->dsNames && inIndex==0)  // Allow names only for the first dataset
  {
    char** dsNames = (char**)iupArrayInsert(ds->dsNames, inSampleIndex, inCount);
    for (int i = 0; i < inCount; i++)
    {
      dsNames[inSampleIndex] = iupStrDup(inNames[i]!=NULL? inNames[i]: "");  
      inSampleIndex++;
    }
  }
}

void IupMglPlotInsert2D(Ihandle* ih, int inIndex, int inSampleIndex, const double *inX, const double *inY, int inCount)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  if(inIndex > (ih->data->dataSetCount-1) || inIndex < 0 || inCount<=0)
    return;

  IdataSet* ds = &ih->data->dataSet[inIndex];
  if (!ds->dsY)
    return;

  if(inSampleIndex > ds->dsCount || inSampleIndex < 0)
    return;

  ds->dsCount += inCount;
  ds->dsX->Extend(ds->dsCount);
  ds->dsY->Extend(ds->dsCount);
  if (inSampleIndex < ds->dsCount-1)  // insert in the middle, open space first
  {
    memmove(ds->dsX->a + inSampleIndex + inCount, ds->dsX->a + inSampleIndex, inCount*sizeof(double));
    memmove(ds->dsY->a + inSampleIndex + inCount, ds->dsY->a + inSampleIndex, inCount*sizeof(double));
  }
  memcpy(ds->dsX->a + inSampleIndex, inX, inCount*sizeof(double));
  memcpy(ds->dsY->a + inSampleIndex, inY, inCount*sizeof(double));
}

void IupMglPlotInsert3D(Ihandle* ih, int inIndex, int inSampleIndex, const double* inX, const double* inY, const double* inZ, int inCount)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  if(inIndex > (ih->data->dataSetCount-1) || inIndex < 0 || inCount<=0)
    return;

  IdataSet* ds = &ih->data->dataSet[inIndex];
  if (!ds->dsY || !ds->dsZ)
    return;

  if(inSampleIndex > ds->dsCount || inSampleIndex < 0)
    return;

  ds->dsCount += inCount;
  ds->dsX->Extend(ds->dsCount);
  ds->dsY->Extend(ds->dsCount);
  ds->dsZ->Extend(ds->dsCount);
  if (inSampleIndex < ds->dsCount-1)  // insert in the middle, open space first
  {
    memmove(ds->dsX->a + inSampleIndex + inCount, ds->dsX->a + inSampleIndex, inCount*sizeof(double));
    memmove(ds->dsY->a + inSampleIndex + inCount, ds->dsY->a + inSampleIndex, inCount*sizeof(double));
    memmove(ds->dsZ->a + inSampleIndex + inCount, ds->dsZ->a + inSampleIndex, inCount*sizeof(double));
  }
  memcpy(ds->dsX->a + inSampleIndex, inX, inCount*sizeof(double));
  memcpy(ds->dsY->a + inSampleIndex, inY, inCount*sizeof(double));
  memcpy(ds->dsZ->a + inSampleIndex, inZ, inCount*sizeof(double));
}

void IupMglPlotSet1D(Ihandle* ih, int inIndex, const char** inNames, const double* inX, int inCount)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  if(inIndex > (ih->data->dataSetCount-1) || inIndex < 0 || inCount<=0)
    return;

  IdataSet* ds = &ih->data->dataSet[inIndex];

  if (inNames && inIndex==0)   // Allow names only for the first dataset
  {
    char** dsNames;
    int j;

    if (!ds->dsNames)
    {
      ds->dsNames = iupArrayCreate(10, sizeof(char*));
      dsNames = (char**)iupArrayAdd(ds->dsNames, inCount);
    }
    else
    {
      dsNames = (char**)iupArrayGetData(ds->dsNames);
      int count = iupArrayCount(ds->dsNames);
      for (j=0; j<count; j++)
        free(dsNames[j]);

      if (count < inCount)
        dsNames = (char**)iupArrayAdd(ds->dsNames, inCount - count);
      else if (count > inCount)
        iupArrayRemove(ds->dsNames, inCount, count - inCount);
    }

    for (j = 0; j < inCount; j++)
    {
      dsNames[j] = iupStrDup(inNames[j]!=NULL? inNames[j]: "");  
    }
  }

  ds->dsX->Set(inX, inCount);
  ds->dsCount = inCount;

  ih->data->redraw = true;
}

void IupMglPlotSet2D(Ihandle* ih, int inIndex, const double *inX, const double *inY, int inCount)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  if(inIndex > (ih->data->dataSetCount-1) || inIndex < 0 || inCount<=0)
    return;

  IdataSet* ds = &ih->data->dataSet[inIndex];
  if (!ds->dsY)
    return;

  ds->dsX->Set(inX, inCount);
  ds->dsY->Set(inY, inCount);
  ds->dsCount = inCount;

  ih->data->redraw = true;
}

void IupMglPlotSet3D(Ihandle* ih, int inIndex, const double* inX, const double* inY, const double* inZ, int inCount)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  if(inIndex > (ih->data->dataSetCount-1) || inIndex < 0 || inCount<=0)
    return;

  IdataSet* ds = &ih->data->dataSet[inIndex];
  if (!ds->dsY || !ds->dsZ)
    return;

  ds->dsX->Set(inX, inCount);
  ds->dsY->Set(inY, inCount);
  ds->dsZ->Set(inZ, inCount);
  ds->dsCount = inCount;

  ih->data->redraw = true;
}

void IupMglPlotSetData(Ihandle* ih, int inIndex, const double* data, int count_x, int count_y, int count_z)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  if(inIndex > (ih->data->dataSetCount-1) || inIndex < 0 ||
     count_x<=0 || count_y<=0 || count_z<=0)
    return;

  IdataSet* ds = &ih->data->dataSet[inIndex];
  ds->dsX->Set(data, count_x, count_y, count_z);
  ds->dsCount = count_x*count_y*count_z;

  ih->data->redraw = true;
}

void IupMglPlotLoadData(Ihandle* ih, int inIndex, const char* filename, int count_x, int count_y, int count_z)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  if(inIndex > (ih->data->dataSetCount-1) || inIndex < 0 ||
     !filename)
    return;

  IdataSet* ds = &ih->data->dataSet[inIndex];
  if (count_x==0 || count_y==0 || count_z==0)
    ds->dsX->Read(filename);
  else
    ds->dsX->Read(filename, count_x, count_y, count_z);
  ds->dsCount = ds->dsX->nx*ds->dsX->ny*ds->dsX->nz;

  ih->data->redraw = true;
}

void IupMglPlotSetFormula(Ihandle* ih, int inIndex, const char* formulaX, const char* formulaY, const char* formulaZ, int count)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  if(inIndex > (ih->data->dataSetCount-1) || inIndex < 0 || !formulaX)
    return;

  IdataSet* ds = &ih->data->dataSet[inIndex];

  if (ds->dsDim >= 2 && !formulaY)
    return;
  if (ds->dsDim == 3 && !formulaZ)
    return;

  count = count>0? count: ds->dsCount;
  if (count != ds->dsCount)
  {
    ds->dsCount = count;
    ds->dsX->Create(count);
    if (ds->dsY) ds->dsY->Create(count);
    if (ds->dsZ) ds->dsZ->Create(count);
  }

  mglGraph* gr = new mglGraph(0, 10, 10);

  mglPoint Min(iupAttribGetDouble(ih, "FORMULA_XMIN"),
               iupAttribGetDouble(ih, "FORMULA_YMIN"),
               iupAttribGetDouble(ih, "FORMULA_YMIN"));
  mglPoint Max(iupAttribGetDouble(ih, "FORMULA_XMAX"),
               iupAttribGetDouble(ih, "FORMULA_YMAX"),
               iupAttribGetDouble(ih, "FORMULA_YMAX"));

  gr->SetRange('x', Min.x, Max.x);
  gr->SetRange('y', Min.y, Max.y);
  gr->SetRange('z', Min.z, Max.z);

  ds->dsX->Fill(gr->Self(), formulaX, "");
  if (ds->dsY) ds->dsY->Fill(gr->Self(), formulaY, "");
  if (ds->dsZ) ds->dsZ->Fill(gr->Self(), formulaZ, "");

  delete gr;

  ih->data->redraw = true;
}

void IupMglPlotSetFromFormula(Ihandle* ih, int inIndex, const char* formula, int count_x, int count_y, int count_z)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  if(inIndex > (ih->data->dataSetCount-1) || inIndex < 0 ||
     !formula)
    return;

  IdataSet* ds = &ih->data->dataSet[inIndex];

  int nx = count_x>0? count_x: ds->dsX->nx;
  int ny = count_y>0? count_y: ds->dsX->ny;
  int nz = count_z>0? count_z: ds->dsX->nz;
  if (nx != ds->dsX->nx || ny != ds->dsX->ny || nz != ds->dsX->nz)
    ds->dsX->Create(nx, ny, nz);

  mglGraph* gr = new mglGraph(0, 10, 10);

  mglPoint Min(iupAttribGetDouble(ih, "FORMULA_XMIN"), 
               iupAttribGetDouble(ih, "FORMULA_YMIN"), 
               iupAttribGetDouble(ih, "FORMULA_YMIN"));
  mglPoint Max(iupAttribGetDouble(ih, "FORMULA_XMAX"),
               iupAttribGetDouble(ih, "FORMULA_YMAX"),
               iupAttribGetDouble(ih, "FORMULA_YMAX"));

  gr->SetRange('x', Min.x, Max.x);
  gr->SetRange('y', Min.y, Max.y);
  gr->SetRange('z', Min.z, Max.z);

  ds->dsX->Fill(gr->Self(), formula, "");
  ds->dsCount = ds->dsX->nx*ds->dsX->ny*ds->dsX->nz;

  delete gr;

  ih->data->redraw = true;
}

void IupMglPlotTransform(Ihandle* ih, double x, double y, double z, int *ix, int *iy)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
      !IupClassMatch(ih, "mglplot"))
    return;

  mglPoint p = ih->data->mgl->CalcScr(mglPoint(x, y, z));

  if (ix) *ix = (int)p.x;
  if (iy) *iy = (int)p.y;
}

void IupMglPlotTransformTo(Ihandle* ih, int ix, int iy, double *x, double *y, double *z)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
      !IupClassMatch(ih, "mglplot"))
    return;

  mglPoint p = ih->data->mgl->CalcXYZ(ix, iy);
  if (x) *x = p.x;
  if (y) *y = p.y;
  if (z) *z = p.z;
}

void IupMglPlotPaintTo(Ihandle* ih, const char* format, int w, int h, double dpi, void *data)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  if (!format || !data)
    return;

  int old_w = ih->data->w;
  int old_h = ih->data->h;
  double old_dpi = ih->data->dpi;

  if (dpi == 0) dpi = old_dpi;
  if (w == 0) w = old_w;
  if (h == 0) h = old_h;

  ih->data->w = w;
  ih->data->h = h;
  ih->data->dpi = dpi;

  if (*format == 'E') //EPS
  {
    char* filename = (char*)data;

    mglGraph* gr = new mglGraph(0, w, h);
    iMglPlotDrawPlot(ih, gr);
    gr->WriteEPS(filename, "IupMglPlot");

    delete gr;
  }
  else if (*format == 'S') //SVG
  {
    char* filename = (char*)data;

    mglGraph* gr = new mglGraph(0, w, h);
    iMglPlotDrawPlot(ih, gr);
    gr->WriteSVG(filename, "IupMglPlot");

    delete gr;
  }
  else if (*format == 'R') //RGB
  {
    int alpha = 0;
    const unsigned char *input_bits;
    unsigned char* output_bits = (unsigned char*)data;
    if (*(format+3) == 'A')
      alpha = 1;

    mglGraph* gr = new mglGraph(0, w, h);
    iMglPlotDrawPlot(ih, gr);
    if (alpha)
      input_bits = gr->GetRGBA();
    else
      input_bits = gr->GetRGB();
    memcpy(output_bits, input_bits, w*h*(alpha? 4:3));

    delete gr;
  }

  ih->data->w = old_w;
  ih->data->h = old_h;
  ih->data->dpi = old_dpi;
}

void IupMglPlotDrawMark(Ihandle* ih, double x, double y, double z)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  mglGraph* gr = (mglGraph*)iupAttribGet(ih, "_IUP_MGLPLOT_GRAPH");
  if (!gr)
    return;

  char style[64] = "";

  char* value = iupAttribGetStr(ih, "DRAWCOLOR");
  mglColor markColor;
  if (!value) markColor = ih->data->fgColor;
  else iMglPlotSetColor(ih, value, markColor);
  iMglPlotAddStyleColor(ih, style, markColor);

  value = iupAttribGetStr(ih, "DRAWMARKSTYLE");
  char markstyle = 'x';
  iMglPlotSetMarkStyle(ih, value, markstyle);
  iMglPlotAddStyleMark(style, markstyle);

  double marksize = iupAttribGetDouble(ih, "DRAWMARKSIZE");
  if (marksize <= 0) marksize = 0.02;
  gr->SetMarkSize(marksize);

  gr->Mark(mglPoint(x, y, z), style);
}

void IupMglPlotDrawLine(Ihandle* ih, double x1, double y1, double z1, double x2, double y2, double z2)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  mglGraph* gr = (mglGraph*)iupAttribGet(ih, "_IUP_MGLPLOT_GRAPH");
  if (!gr)
    return;

  char style[64] = "";

  char* value = iupAttribGetStr(ih, "DRAWCOLOR");
  mglColor lineColor;
  if (!value) lineColor = ih->data->fgColor;
  else iMglPlotSetColor(ih, value, lineColor);
  iMglPlotAddStyleColor(ih, style, lineColor);

  value = iupAttribGetStr(ih, "DRAWLINESTYLE");
  char linestyle = '-';
  iMglPlotSetLineStyle(ih, value, linestyle);

  int linewidth = iupAttribGetInt(ih, "DRAWLINEWIDTH");

  iMglPlotAddStyleLine(style, linestyle, linewidth);

  gr->Line(mglPoint(x1, y1, z1), mglPoint(x2, y2, z2), style);
}

void IupMglPlotDrawText(Ihandle* ih, const char* text, double x, double y, double z)
{
  iupASSERT(iupObjectCheck(ih));
  if (!iupObjectCheck(ih))
    return;

  if (ih->iclass->nativetype != IUP_TYPECANVAS || 
    !IupClassMatch(ih, "mglplot"))
    return;

  mglGraph* gr = (mglGraph*)iupAttribGet(ih, "_IUP_MGLPLOT_GRAPH");
  if (!gr)
    return;

  char style[64] = "";

  char* value = iupAttribGetStr(ih, "DRAWCOLOR");
  mglColor textColor;
  if (!value) textColor = ih->data->fgColor;
  else iMglPlotSetColor(ih, value, textColor);
  iMglPlotAddStyleColor(ih, style, textColor);

  value = iupAttribGetStr(ih, "DRAWFONT");
  if (value)
    iMglPlotConfigFontDef(ih, gr, value);

  char fontstyle[32] = "";
  value = iupAttribGetStr(ih, "DRAWFONTSTYLE");
  iMglPlotAddStyleFont(fontstyle, value);

  value = iupAttribGetStr(ih, "DRAWFONTSIZE");
  double fontsizefactor = 1.0;
  iupStrToDouble(value, &fontsizefactor);

  iMglPlotConfigFont(ih, gr, NULL, fontstyle, fontsizefactor);

  gr->Puts(mglPoint(x, y, z), text, style);
}


/******************************************************************************
 Canvas Callbacks
******************************************************************************/


static void iMglPlotZoom(Ihandle *ih, double factor)
{
  double rh = ih->data->y2 - ih->data->y1;
  double ry = (rh * factor) / (double)ih->data->h;
  double rw = ih->data->x2 - ih->data->x1;
  double rx = (rw * factor) / (double)ih->data->w;
  ih->data->y1 += ry;
  ih->data->y2 -= ry;
  ih->data->x1 += rx;
  ih->data->x2 -= rx;

  //TODO: temporary-commented while adjusting sizes
  //if (ih->data->x1 < 0) ih->data->x1 = 0;
  //if (ih->data->y1 < 0) ih->data->y1 = 0;
  //if (ih->data->x2 > 1.0) ih->data->x2 = 1.0;
  //if (ih->data->y2 > 1.0) ih->data->y2 = 1.0;
}

static void iMglPlotPanY(Ihandle *ih, double yoffset)
{
  double rh = ih->data->y2 - ih->data->y1;
  double ry = (rh * yoffset) / (double)ih->data->h;
  if (ih->data->y1 + ry < 0) ry = -ih->data->y1;
  if (ih->data->y2 + ry > 1.0) ry = 1.0 - ih->data->y2;
  ih->data->y1 += ry;
  ih->data->y2 += ry;
}

static void iMglPlotPanX(Ihandle *ih, double xoffset)
{
  double rw = ih->data->x2 - ih->data->x1;
  double rx = (rw * xoffset) / (double)ih->data->w;
  if (ih->data->x1 + rx < 0) rx = -ih->data->x1;
  if (ih->data->x2 + rx > 1.0) rx = 1.0 - ih->data->x2;
  ih->data->x1 += rx;
  ih->data->x2 += rx;
}

static void iMglPlotRotate(double &angle, double delta)
{
  angle += delta;

  // Keep between -360:+360 just to return a nice value in the getattrib method
  angle = fmod(angle, 360.0);
}

static int iMglPlotResize_CB(Ihandle* ih, int width, int height)
{
  ih->data->redraw = true;
  ih->data->w = width;
  ih->data->h = height;
  ih->data->dpi = IupGetDouble(NULL, "SCREENDPI");

  iMglPlotInitOpenGL2D(ih);

  ih->data->mgl->SetSize(width, height);

  return IUP_DEFAULT;
}

static int iMglPlotRedraw_CB(Ihandle* ih)
{
  iMglPlotRepaint(ih, 0, 1);  /* full redraw only if nothing changed */
  return IUP_DEFAULT;
}

static int iMglPlotMouseButton_CB(Ihandle* ih, int b, int press, int x, int y, char* status)
{
  if (press)  /* Any Button pressed */
  {
    /* Initial (x,y) */
    ih->data->last_x = (double)x;
    ih->data->last_y = (double)y;
  }

  if (iup_isdouble(status))  /* Double-click: restore interaction default values */
  {
    iMglPlotResetInteraction(ih);
    iMglPlotRepaint(ih, 1, 1);
  }

  (void)b;
  return IUP_DEFAULT;
}

static int iMglPlotMouseMove_CB(Ihandle* ih, int x, int y, char *status)
{
  double cur_x = (double)x;
  double cur_y = (double)y;

  if (iup_isbutton3(status))
  {
    // This is the same computation done in MathGL widgets
    double ff = 240.0 / sqrt(double(ih->data->w * ih->data->h));
    double deltaZ = (ih->data->last_x - cur_x) * ff;
    double deltaX = (ih->data->last_y - cur_y) * ff;

    iMglPlotRotate(ih->data->rotX, deltaX);
    iMglPlotRotate(ih->data->rotZ, deltaZ);

    iMglPlotRepaint(ih, 1, 1);
  }
  else if(iup_isbutton1(status))
  {
    if (iup_iscontrol(status))
    {
      /* Zoom with vertical movement */
      double factor = 10.0 * (ih->data->last_y - cur_y);
      iMglPlotZoom(ih, factor);
    }
    else
    {
      /* Pan */
      double xoffset = ih->data->last_x - cur_x;
      double yoffset = cur_y - ih->data->last_y;  /* Inverted because Y in IUP is top-down */

      iMglPlotPanX(ih, xoffset);
      iMglPlotPanY(ih, yoffset);
    }

    iMglPlotRepaint(ih, 1, 1);
  }

  ih->data->last_x = cur_x;
  ih->data->last_y = cur_y;

  return IUP_DEFAULT;
}

static int iMglPlotWheel_CB(Ihandle* ih, float delta)
{
  if(delta < 0)  /* Zoom In */
  {
    iMglPlotZoom(ih, 50.0);
    iMglPlotRepaint(ih, 1, 1);
  }
  else if(delta > 0)  /* Zoom Out */
  {
    iMglPlotZoom(ih, -50.0);
    iMglPlotRepaint(ih, 1, 1);
  }

  return IUP_DEFAULT;
}

static int iMglPlotKeyPress_CB(Ihandle* ih, int c, int press)
{
  if (!press)
    return IUP_DEFAULT;

  switch(c)
  {
  /* Restore interaction default values */
  case K_HOME:
    iMglPlotResetInteraction(ih);
    break;
  /* Pan */
  case K_cUP:
  case K_UP:
    if (c == K_cUP)
      iMglPlotPanY(ih, -10.0);
    else
      iMglPlotPanY(ih, -1.0);
    break;
  case K_cDOWN:
  case K_DOWN:
    if (c == K_cDOWN)
      iMglPlotPanY(ih, 10.0);
    else
      iMglPlotPanY(ih, 1.0);
    break;
  case K_cLEFT:
  case K_LEFT:
    if (c == K_cLEFT)
      iMglPlotPanX(ih, 10.0);
    else
      iMglPlotPanX(ih, 1.0);
    break;
  case K_cRIGHT:
  case K_RIGHT:
    if (c == K_cRIGHT)
      iMglPlotPanX(ih, -10.0);
    else
      iMglPlotPanX(ih, -1.0);
    break;
  /* Zoom */
  case K_plus:
    iMglPlotZoom(ih, 10.0);
    break;
  case K_minus:
    iMglPlotZoom(ih, -10.0);
    break;
  /* Rotation */
  case K_A: case K_a:
    iMglPlotRotate(ih->data->rotY, +1.0);     // 1 degree
    break;
  case K_D: case K_d:
    iMglPlotRotate(ih->data->rotY, -1.0);
    break;
  case K_W: case K_w:
    iMglPlotRotate(ih->data->rotX, +1.0);
    break;
  case K_S: case K_s:
    iMglPlotRotate(ih->data->rotX, -1.0);
    break;
  case K_E: case K_e:
    iMglPlotRotate(ih->data->rotZ, +1.0);
    break;
  case K_Q: case K_q:
    iMglPlotRotate(ih->data->rotZ, -1.0);
    break;
  default:
    return IUP_DEFAULT;
  }

  iMglPlotRepaint(ih, 1, 1);
  return IUP_IGNORE;  /* ignore processed keys */
} 

/******************************************************************************
  Class Methods
******************************************************************************/

static void iMglPlotDestroyMethod(Ihandle* ih)
{
  int i;
  
  /* PLOT End for the current stream */
  for(i = 0; i < ih->data->dataSetCount; i++)
    iMglPlotRemoveDataSet(&ih->data->dataSet[i]);

  free(ih->data->dataSet);

  delete ih->data->mgl;
}

static int iMglPlotCreateMethod(Ihandle* ih, void **params)
{
  (void)params;

  /* free the data allocated by IupCanvas */
  free(ih->data);
  ih->data = iupALLOCCTRLDATA();

  ih->data->dataSetMaxCount = 5;
  ih->data->dataSet = (IdataSet*)malloc(sizeof(IdataSet)*ih->data->dataSetMaxCount);
  memset(ih->data->dataSet, 0, sizeof(IdataSet)*ih->data->dataSetMaxCount);
  ih->data->dataSetCurrent = -1;

  /* IupCanvas callbacks */
  IupSetCallback(ih, "RESIZE_CB",   (Icallback)iMglPlotResize_CB);
  IupSetCallback(ih, "ACTION",      (Icallback)iMglPlotRedraw_CB);
  IupSetCallback(ih, "BUTTON_CB",   (Icallback)iMglPlotMouseButton_CB);
  IupSetCallback(ih, "WHEEL_CB",    (Icallback)iMglPlotWheel_CB);
  IupSetCallback(ih, "KEYPRESS_CB", (Icallback)iMglPlotKeyPress_CB);
  IupSetCallback(ih, "MOTION_CB",   (Icallback)iMglPlotMouseMove_CB);

  IupSetAttribute(ih, "BUFFER", "DOUBLE");

  ih->data->redraw = true;
  ih->data->w = 1;
  ih->data->h = 1;
  ih->data->mgl = new mglGraph(0, ih->data->w, ih->data->h);

  // Default values
  iMglPlotReset(ih);

  return IUP_NOERROR;
}

static Iclass* iMglPlotNewClass(void)
{
  Iclass* ic = iupClassNew(iupRegisterFindClass("glcanvas"));

  ic->name = "mglplot";
  ic->cons = "MglPlot";
  ic->format = NULL;  /* none */
  ic->nativetype = IUP_TYPECANVAS;
  ic->childtype = IUP_CHILDNONE;
  ic->is_interactive = 1;

  /* Class functions */
  ic->New     = iMglPlotNewClass;
  ic->Create  = iMglPlotCreateMethod;
  ic->Destroy = iMglPlotDestroyMethod;

   /* IupPPlot Callbacks */
   iupClassRegisterCallback(ic, "POSTDRAW_CB", "");
   iupClassRegisterCallback(ic, "PREDRAW_CB", "");

  /* Visual */
  iupClassRegisterAttribute(ic, "BGCOLOR", iMglPlotGetBGColorAttrib, iMglPlotSetBGColorAttrib, "255 255 255", NULL, IUPAF_NOT_MAPPED);   /* overwrite canvas implementation, set a system default to force a new default */
  iupClassRegisterAttribute(ic, "FGCOLOR", iMglPlotGetFGColorAttrib, iMglPlotSetFGColorAttrib, IUPAF_SAMEASSYSTEM, "0 0 0", IUPAF_NOT_MAPPED);

  /* IupMglPlot only */
  iupClassRegisterAttribute(ic, "REDRAW", NULL, iMglPlotSetRedrawAttrib, NULL, NULL, IUPAF_WRITEONLY|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "ALPHA", iMglPlotGetAlphaAttrib, iMglPlotSetAlphaAttrib, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "TRANSPARENT", iMglPlotGetTransparentAttrib, iMglPlotSetTransparentAttrib, IUPAF_SAMEASSYSTEM, "No", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "OPENGL", iMglPlotGetOpenGLAttrib, iMglPlotSetOpenGLAttrib, IUPAF_SAMEASSYSTEM, "No", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "ANTIALIAS", iMglPlotGetAntialiasAttrib, iMglPlotSetAntialiasAttrib, IUPAF_SAMEASSYSTEM, "No", IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "RESET", NULL, iMglPlotSetResetAttrib, NULL, NULL, IUPAF_WRITEONLY|IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "ERRORMESSAGE", iMglPlotGetErrorMessageAttrib, NULL, NULL, NULL, IUPAF_READONLY|IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "SUPPRESSWARNING", NULL, iMglPlotSetSuppressWarningAttrib, NULL, NULL, IUPAF_WRITEONLY | IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  
  iupClassRegisterAttribute(ic, "MGLGRAPH", iMglPlotGetMglGraphAttrib, NULL, NULL, NULL, IUPAF_NO_STRING | IUPAF_READONLY | IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "MARGINLEFT", NULL, NULL, IUPAF_SAMEASSYSTEM, "Yes", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "MARGINRIGHT", NULL, NULL, IUPAF_SAMEASSYSTEM, "Yes", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "MARGINTOP", NULL, NULL, IUPAF_SAMEASSYSTEM, "Yes", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "MARGINBOTTOM", NULL, NULL, IUPAF_SAMEASSYSTEM, "Yes", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "TITLE", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "TITLECOLOR", iMglPlotGetTitleColorAttrib, iMglPlotSetTitleColorAttrib, NULL, NULL, IUPAF_NOT_MAPPED);
  iupClassRegisterAttribute(ic, "TITLEFONTSIZE", iMglPlotGetTitleFontSizeAttrib, iMglPlotSetTitleFontSizeAttrib, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "TITLEFONTSTYLE", iMglPlotGetTitleFontStyleAttrib, iMglPlotSetTitleFontStyleAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "LEGEND", iMglPlotGetLegendShowAttrib, iMglPlotSetLegendShowAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "LEGENDSHOW", iMglPlotGetLegendShowAttrib, iMglPlotSetLegendShowAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT); // for IupPPlot compatibility
  iupClassRegisterAttribute(ic, "LEGENDBOX", iMglPlotGetLegendBoxAttrib, iMglPlotSetLegendBoxAttrib, IUPAF_SAMEASSYSTEM, "Yes", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "LEGENDPOS", iMglPlotGetLegendPosAttrib, iMglPlotSetLegendPosAttrib, IUPAF_SAMEASSYSTEM, "TOPRIGHT", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "LEGENDFONTSIZE", iMglPlotGetLegendFontSizeAttrib, iMglPlotSetLegendFontSizeAttrib, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "LEGENDFONTSTYLE", iMglPlotGetLegendFontStyleAttrib, iMglPlotSetLegendFontStyleAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "LEGENDCOLOR", iMglPlotGetLegendColorAttrib, iMglPlotSetLegendColorAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "GRIDLINESTYLE", iMglPlotGetGridLineStyleAttrib, iMglPlotSetGridLineStyleAttrib, IUPAF_SAMEASSYSTEM, "CONTINUOUS", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "GRIDCOLOR", iMglPlotGetGridColorAttrib, iMglPlotSetGridColorAttrib, IUPAF_SAMEASSYSTEM, "200 200 200", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "GRID", iMglPlotGetGridAttrib, iMglPlotSetGridAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "REMOVE", NULL, iMglPlotSetRemoveAttrib, NULL, NULL, IUPAF_WRITEONLY|IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "CLEAR", NULL, iMglPlotSetClearAttrib, NULL, NULL, IUPAF_WRITEONLY|IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "COUNT", iMglPlotGetCountAttrib, NULL, NULL, NULL, IUPAF_READONLY|IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "CURRENT", iMglPlotGetCurrentAttrib, iMglPlotSetCurrentAttrib, IUPAF_SAMEASSYSTEM, "-1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "DS_LINESTYLE", iMglPlotGetDSLineStyleAttrib, iMglPlotSetDSLineStyleAttrib, IUPAF_SAMEASSYSTEM, "CONTINUOUS", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_LINEWIDTH", iMglPlotGetDSLineWidthAttrib, iMglPlotSetDSLineWidthAttrib, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_MARKSTYLE", iMglPlotGetDSMarkStyleAttrib, iMglPlotSetDSMarkStyleAttrib, IUPAF_SAMEASSYSTEM, "X", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_MARKSIZE", iMglPlotGetDSMarkSizeAttrib, iMglPlotSetDSMarkSizeAttrib, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_SHOWMARKS", iMglPlotGetDSShowMarksAttrib, iMglPlotSetDSShowMarksAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_LEGEND", iMglPlotGetDSLegendAttrib, iMglPlotSetDSLegendAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_COLOR", iMglPlotGetDSColorAttrib, iMglPlotSetDSColorAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_SHOWVALUES", iMglPlotGetDSShowValuesAttrib, iMglPlotSetDSShowValuesAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_MODE", iMglPlotGetDSModeAttrib, iMglPlotSetDSModeAttrib, IUPAF_SAMEASSYSTEM, "LINE", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_REMOVE", NULL, iMglPlotSetDSRemoveAttrib, NULL, NULL, IUPAF_WRITEONLY|IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_COUNT", iMglPlotGetDSCountAttrib, NULL, NULL, NULL, IUPAF_READONLY|IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_DIMENSION", iMglPlotGetDSDimAttrib, NULL, NULL, NULL, IUPAF_READONLY|IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_REARRANGE", NULL, iMglPlotSetDSRearrangeAttrib, NULL, NULL, IUPAF_WRITEONLY|IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DS_SPLIT", NULL, iMglPlotSetDSSplitAttrib, NULL, NULL, IUPAF_WRITEONLY|IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "DATAGRID", NULL, NULL, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "GRADLINESCOUNT", NULL, NULL, IUPAF_SAMEASSYSTEM, "5", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXIALCOUNT", NULL, NULL, IUPAF_SAMEASSYSTEM, "3", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "CONTOURFILLED", NULL, NULL, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "CONTOURLABELS", NULL, NULL, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "CONTOURCOUNT", NULL, NULL, IUPAF_SAMEASSYSTEM, "7", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DIR", NULL, NULL, IUPAF_SAMEASSYSTEM, "Y", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "CLOUDLOW", NULL, NULL, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "SLICEX", NULL, NULL, IUPAF_SAMEASSYSTEM, "-1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "SLICEY", NULL, NULL, IUPAF_SAMEASSYSTEM, "-1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "SLICEZ", NULL, NULL, IUPAF_SAMEASSYSTEM, "-1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "SLICEDIR", NULL, NULL, IUPAF_SAMEASSYSTEM, "XYZ", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "PROJECTVALUEX", NULL, NULL, IUPAF_SAMEASSYSTEM, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "PROJECTVALUEY", NULL, NULL, IUPAF_SAMEASSYSTEM, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "PROJECTVALUEZ", NULL, NULL, IUPAF_SAMEASSYSTEM, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "PROJECT", NULL, NULL, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "ISOCOUNT", NULL, NULL, IUPAF_SAMEASSYSTEM, "3", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "BARWIDTH", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "RADARSHIFT", NULL, NULL, IUPAF_SAMEASSYSTEM, "-1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "PIECHART", NULL, NULL, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "LIGHT", NULL, NULL, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "COLORSCHEME", NULL, NULL, IUPAF_SAMEASSYSTEM, "BbcyrR", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "COLORBAR", NULL, NULL, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "COLORBARPOS", NULL, NULL, IUPAF_SAMEASSYSTEM, "RIGHT", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "COLORBARRANGE", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "COLORBARAXISTICKS", NULL, NULL, IUPAF_SAMEASSYSTEM, "Z", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "BOX", iMglPlotGetBoxAttrib, iMglPlotSetBoxAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "BOXTICKS", iMglPlotGetBoxTicksAttrib, iMglPlotSetBoxTicksAttrib, IUPAF_SAMEASSYSTEM, "Yes", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "BOXCOLOR", iMglPlotGetBoxColorAttrib, iMglPlotSetBoxColorAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "AXS_XLABEL", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YLABEL", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZLABEL", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XLABELCENTERED", iMglPlotGetAxisXLabelCenteredAttrib, iMglPlotSetAxisXLabelCenteredAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YLABELCENTERED", iMglPlotGetAxisYLabelCenteredAttrib, iMglPlotSetAxisYLabelCenteredAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZLABELCENTERED", iMglPlotGetAxisZLabelCenteredAttrib, iMglPlotSetAxisZLabelCenteredAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XLABELPOSITION", iMglPlotGetAxisXLabelPositionAttrib, iMglPlotSetAxisXLabelPositionAttrib, IUPAF_SAMEASSYSTEM, "CENTER", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YLABELPOSITION", iMglPlotGetAxisYLabelPositionAttrib, iMglPlotSetAxisYLabelPositionAttrib, IUPAF_SAMEASSYSTEM, "CENTER", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZLABELPOSITION", iMglPlotGetAxisZLabelPositionAttrib, iMglPlotSetAxisZLabelPositionAttrib, IUPAF_SAMEASSYSTEM, "CENTER", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XLABELROTATION", iMglPlotGetAxisXLabelRotationAttrib, iMglPlotSetAxisXLabelRotationAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YLABELROTATION", iMglPlotGetAxisYLabelRotationAttrib, iMglPlotSetAxisYLabelRotationAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZLABELROTATION", iMglPlotGetAxisZLabelRotationAttrib, iMglPlotSetAxisZLabelRotationAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XCOLOR", iMglPlotGetAxisXColorAttrib, iMglPlotSetAxisXColorAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YCOLOR", iMglPlotGetAxisYColorAttrib, iMglPlotSetAxisYColorAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZCOLOR", iMglPlotGetAxisZColorAttrib, iMglPlotSetAxisZColorAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XAUTOMIN", iMglPlotGetAxisXAutoMinAttrib, iMglPlotSetAxisXAutoMinAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YAUTOMIN", iMglPlotGetAxisYAutoMinAttrib, iMglPlotSetAxisYAutoMinAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZAUTOMIN", iMglPlotGetAxisZAutoMinAttrib, iMglPlotSetAxisZAutoMinAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XAUTOMAX", iMglPlotGetAxisXAutoMaxAttrib, iMglPlotSetAxisXAutoMaxAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YAUTOMAX", iMglPlotGetAxisYAutoMaxAttrib, iMglPlotSetAxisYAutoMaxAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZAUTOMAX", iMglPlotGetAxisZAutoMaxAttrib, iMglPlotSetAxisZAutoMaxAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XMIN", iMglPlotGetAxisXMinAttrib, iMglPlotSetAxisXMinAttrib, IUPAF_SAMEASSYSTEM, "-1", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YMIN", iMglPlotGetAxisYMinAttrib, iMglPlotSetAxisYMinAttrib, IUPAF_SAMEASSYSTEM, "-1", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZMIN", iMglPlotGetAxisZMinAttrib, iMglPlotSetAxisZMinAttrib, IUPAF_SAMEASSYSTEM, "-1", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XMAX", iMglPlotGetAxisXMaxAttrib, iMglPlotSetAxisXMaxAttrib, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YMAX", iMglPlotGetAxisYMaxAttrib, iMglPlotSetAxisYMaxAttrib, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZMAX", iMglPlotGetAxisZMaxAttrib, iMglPlotSetAxisZMaxAttrib, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XREVERSE", iMglPlotGetAxisXReverseAttrib, iMglPlotSetAxisXReverseAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YREVERSE", iMglPlotGetAxisYReverseAttrib, iMglPlotSetAxisYReverseAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZREVERSE", iMglPlotGetAxisZReverseAttrib, iMglPlotSetAxisZReverseAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_X", iMglPlotGetAxisXShowAttrib, iMglPlotSetAxisXShowAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_Y", iMglPlotGetAxisYShowAttrib, iMglPlotSetAxisYShowAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_Z", iMglPlotGetAxisZShowAttrib, iMglPlotSetAxisZShowAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XARROW", iMglPlotGetAxisXShowArrowAttrib, iMglPlotSetAxisXShowArrowAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YARROW", iMglPlotGetAxisYShowArrowAttrib, iMglPlotSetAxisYShowArrowAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZARROW", iMglPlotGetAxisZShowArrowAttrib, iMglPlotSetAxisZShowArrowAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XCROSSORIGIN", iMglPlotGetAxisXCrossOriginAttrib, iMglPlotSetAxisXCrossOriginAttrib, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YCROSSORIGIN", iMglPlotGetAxisYCrossOriginAttrib, iMglPlotSetAxisYCrossOriginAttrib, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZCROSSORIGIN", iMglPlotGetAxisZCrossOriginAttrib, iMglPlotSetAxisZCrossOriginAttrib, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XORIGIN", iMglPlotGetAxisXOriginAttrib, iMglPlotSetAxisXOriginAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YORIGIN", iMglPlotGetAxisYOriginAttrib, iMglPlotSetAxisYOriginAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZORIGIN", iMglPlotGetAxisZOriginAttrib, iMglPlotSetAxisZOriginAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XSCALE", iMglPlotGetAxisXScaleAttrib, iMglPlotSetAxisXScaleAttrib, IUPAF_SAMEASSYSTEM, "LIN", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YSCALE", iMglPlotGetAxisYScaleAttrib, iMglPlotSetAxisYScaleAttrib, IUPAF_SAMEASSYSTEM, "LIN", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZSCALE", iMglPlotGetAxisZScaleAttrib, iMglPlotSetAxisZScaleAttrib, IUPAF_SAMEASSYSTEM, "LIN", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XFONTSIZE", iMglPlotGetAxisXFontSizeAttrib, iMglPlotSetAxisXFontSizeAttrib, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YFONTSIZE", iMglPlotGetAxisYFontSizeAttrib, iMglPlotSetAxisYFontSizeAttrib, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YFONTSIZE", iMglPlotGetAxisZFontSizeAttrib, iMglPlotSetAxisZFontSizeAttrib, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XFONTSTYLE", iMglPlotGetAxisXFontStyleAttrib, iMglPlotSetAxisXFontStyleAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YFONTSTYLE", iMglPlotGetAxisYFontStyleAttrib, iMglPlotSetAxisYFontStyleAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZFONTSTYLE", iMglPlotGetAxisZFontStyleAttrib, iMglPlotSetAxisZFontStyleAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "AXS_XTICK", iMglPlotGetAxisXTickAttrib, iMglPlotSetAxisXTickAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICK", iMglPlotGetAxisYTickAttrib, iMglPlotSetAxisYTickAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICK", iMglPlotGetAxisZTickAttrib, iMglPlotSetAxisZTickAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKVALUES", iMglPlotGetAxisXTickShowValuesAttrib, iMglPlotSetAxisXTickShowValuesAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKVALUES", iMglPlotGetAxisYTickShowValuesAttrib, iMglPlotSetAxisYTickShowValuesAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKVALUES", iMglPlotGetAxisZTickShowValuesAttrib, iMglPlotSetAxisZTickShowValuesAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKVALUESROTATION", iMglPlotGetAxisXTickValuesRotationAttrib, iMglPlotSetAxisXTickValuesRotationAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKVALUESROTATION", iMglPlotGetAxisYTickValuesRotationAttrib, iMglPlotSetAxisYTickValuesRotationAttrib, IUPAF_SAMEASSYSTEM, "NO", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKVALUESROTATION", iMglPlotGetAxisZTickValuesRotationAttrib, iMglPlotSetAxisZTickValuesRotationAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKFORMAT", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKFORMAT", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKFORMAT", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKFONTSIZE", iMglPlotGetAxisXTickFontSizeAttrib, iMglPlotSetAxisXTickFontSizeAttrib, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKFONTSIZE", iMglPlotGetAxisYTickFontSizeAttrib, iMglPlotSetAxisYTickFontSizeAttrib, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKFONTSIZE", iMglPlotGetAxisZTickFontSizeAttrib, iMglPlotSetAxisZTickFontSizeAttrib, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKFONTSTYLE", iMglPlotGetAxisXTickFontStyleAttrib, iMglPlotSetAxisXTickFontStyleAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKFONTSTYLE", iMglPlotGetAxisYTickFontStyleAttrib, iMglPlotSetAxisYTickFontStyleAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKFONTSTYLE", iMglPlotGetAxisZTickFontStyleAttrib, iMglPlotSetAxisZTickFontStyleAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XAUTOTICK", iMglPlotGetAxisXTickAutoAttrib, iMglPlotSetAxisXTickAutoAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YAUTOTICK", iMglPlotGetAxisYTickAutoAttrib, iMglPlotSetAxisYTickAutoAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZAUTOTICK", iMglPlotGetAxisZTickAutoAttrib, iMglPlotSetAxisZTickAutoAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKAUTO", iMglPlotGetAxisXTickAutoAttrib, iMglPlotSetAxisXTickAutoAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKAUTO", iMglPlotGetAxisYTickAutoAttrib, iMglPlotSetAxisYTickAutoAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKAUTO", iMglPlotGetAxisZTickAutoAttrib, iMglPlotSetAxisZTickAutoAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKMAJORSPAN", iMglPlotGetAxisXTickMajorSpanAttrib, iMglPlotSetAxisXTickMajorSpanAttrib, IUPAF_SAMEASSYSTEM, "-5", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKMAJORSPAN", iMglPlotGetAxisYTickMajorSpanAttrib, iMglPlotSetAxisYTickMajorSpanAttrib, IUPAF_SAMEASSYSTEM, "-5", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKMAJORSPAN", iMglPlotGetAxisZTickMajorSpanAttrib, iMglPlotSetAxisZTickMajorSpanAttrib, IUPAF_SAMEASSYSTEM, "-5", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKDIVISION", iMglPlotGetAxisXTickMinorDivisionAttrib, iMglPlotSetAxisXTickMinorDivisionAttrib, IUPAF_SAMEASSYSTEM, "5", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKDIVISION", iMglPlotGetAxisYTickMinorDivisionAttrib, iMglPlotSetAxisYTickMinorDivisionAttrib, IUPAF_SAMEASSYSTEM, "5", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKDIVISION", iMglPlotGetAxisZTickMinorDivisionAttrib, iMglPlotSetAxisZTickMinorDivisionAttrib, IUPAF_SAMEASSYSTEM, "5", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKMINORDIVISION", iMglPlotGetAxisXTickMinorDivisionAttrib, iMglPlotSetAxisXTickMinorDivisionAttrib, IUPAF_SAMEASSYSTEM, "5", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKMINORDIVISION", iMglPlotGetAxisYTickMinorDivisionAttrib, iMglPlotSetAxisYTickMinorDivisionAttrib, IUPAF_SAMEASSYSTEM, "5", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKMINORDIVISION", iMglPlotGetAxisZTickMinorDivisionAttrib, iMglPlotSetAxisZTickMinorDivisionAttrib, IUPAF_SAMEASSYSTEM, "5", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XAUTOTICKSIZE", iMglPlotGetAxisXTickAutoSizeAttrib, iMglPlotSetAxisXTickAutoSizeAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YAUTOTICKSIZE", iMglPlotGetAxisYTickAutoSizeAttrib, iMglPlotSetAxisYTickAutoSizeAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZAUTOTICKSIZE", iMglPlotGetAxisZTickAutoSizeAttrib, iMglPlotSetAxisZTickAutoSizeAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKAUTOSIZE", iMglPlotGetAxisXTickAutoSizeAttrib, iMglPlotSetAxisXTickAutoSizeAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKAUTOSIZE", iMglPlotGetAxisYTickAutoSizeAttrib, iMglPlotSetAxisYTickAutoSizeAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKAUTOSIZE", iMglPlotGetAxisZTickAutoSizeAttrib, iMglPlotSetAxisZTickAutoSizeAttrib, IUPAF_SAMEASSYSTEM, "YES", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKMAJORSIZE", iMglPlotGetAxisXTickMajorSizeAttrib, iMglPlotSetAxisXTickMajorSizeAttrib, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKMAJORSIZE", iMglPlotGetAxisYTickMajorSizeAttrib, iMglPlotSetAxisYTickMajorSizeAttrib, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKMAJORSIZE", iMglPlotGetAxisZTickMajorSizeAttrib, iMglPlotSetAxisZTickMajorSizeAttrib, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_XTICKMINORSIZE", iMglPlotGetAxisXTickMinorSizeAttrib, iMglPlotSetAxisXTickMinorSizeAttrib, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_YTICKMINORSIZE", iMglPlotGetAxisYTickMinorSizeAttrib, iMglPlotSetAxisYTickMinorSizeAttrib, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "AXS_ZTICKMINORSIZE", iMglPlotGetAxisZTickMinorSizeAttrib, iMglPlotSetAxisZTickMinorSizeAttrib, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "DRAWCOLOR", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DRAWMARKSTYLE", NULL, NULL, IUPAF_SAMEASSYSTEM, "X", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DRAWMARKSIZE", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DRAWLINESTYLE", NULL, NULL, IUPAF_SAMEASSYSTEM, "CONTINUOUS", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DRAWLINEWIDTH", NULL, NULL, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DRAWFONTSTYLE", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "DRAWFONTSIZE", NULL, NULL, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "FORMULA_XMIN", NULL, NULL, IUPAF_SAMEASSYSTEM, "0", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "FORMULA_YMIN", NULL, NULL, IUPAF_SAMEASSYSTEM, "0", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "FORMULA_ZMIN", NULL, NULL, IUPAF_SAMEASSYSTEM, "0", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "FORMULA_XMAX", NULL, NULL, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "FORMULA_YMAX", NULL, NULL, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "FORMULA_ZMAX", NULL, NULL, IUPAF_SAMEASSYSTEM, "1", IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);

  iupClassRegisterAttribute(ic, "ZOOM", iMglPlotGetZoomAttrib, iMglPlotSetZoomAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);
  iupClassRegisterAttribute(ic, "ROTATE", iMglPlotGetRotateAttrib, iMglPlotSetRotateAttrib, NULL, NULL, IUPAF_NOT_MAPPED|IUPAF_NO_INHERIT);

  return ic;
}

Ihandle* IupMglPlot(void)
{
  return IupCreate("mglplot");
}

static int iMglLabelPostDraw_CB(Ihandle* ih)
{
  char* value = iupAttribGet(ih, "LABELTITLE");
  if (value)
  {
    iupAttribSet(ih, "DRAWFONT", iupAttribGetStr(ih, "LABELFONT"));
    iupAttribSet(ih, "DRAWFONTSTYLE", iupAttribGetStr(ih, "LABELFONTSTYLE"));
    iupAttribSet(ih, "DRAWFONTSIZE", iupAttribGetStr(ih, "LABELFONTSIZE"));

    IupMglPlotDrawText(ih, value, 0, -0.5, 0);
  }
  return IUP_DEFAULT;
}

static int iMglLabelCreateMethod(Ihandle* ih, void** params)
{
  if (params && params[0])
    iupAttribSetStr(ih, "LABELTITLE", (char*)(params[0]));

  IupSetAttribute(ih, "MARGINLEFT", "No");
  IupSetAttribute(ih, "MARGINRIGHT", "No");
  IupSetAttribute(ih, "MARGINTOP", "No");
  IupSetAttribute(ih, "MARGINBOTTOM", "No");
  IupSetAttribute(ih, "AXS_X", "No");
  IupSetAttribute(ih, "AXS_Y", "No");
  IupSetAttribute(ih, "AXS_Z", "No");

  IupSetAttribute(ih, "EXPAND", "No");
  IupSetAttribute(ih, "BORDER", "No");

  IupSetCallback(ih, "POSTDRAW_CB", (Icallback)iMglLabelPostDraw_CB);

  return IUP_NOERROR;
}

static int iMglLabelMapMethod(Ihandle* ih)
{
  if (!iupAttribGet(ih, "BGCOLOR"))
    IupSetStrAttribute(ih, "BGCOLOR", IupGetAttribute(iupChildTreeGetNativeParent(ih), "BGCOLOR"));

  return IUP_NOERROR;
}

static Iclass* iMglLabelNewClass(void)
{
  Iclass* ic = iupClassNew(iupRegisterFindClass("mglplot"));

  ic->name = "mgllabel";
  ic->cons = "MglLabel";
  ic->format = "s"; /* one string */
  ic->format_attr = "LABELTITLE";
  ic->nativetype = IUP_TYPECANVAS;
  ic->childtype = IUP_CHILDNONE;
  ic->is_interactive = 0;

  /* Class functions */
  ic->New = iMglLabelNewClass;
  ic->Create = iMglLabelCreateMethod;
  ic->Map = iMglLabelMapMethod;

  iupClassRegisterAttribute(ic, "LABELTITLE", NULL, NULL, NULL, NULL, IUPAF_NOT_MAPPED | IUPAF_NO_INHERIT);

  return ic;
}

Ihandle* IupMglLabel(const char* title)
{
  void *params[2];
  params[0] = (void*)title;
  params[1] = NULL;
  return IupCreatev("mgllabel", params);
}

void IupMglPlotOpen(void)
{
  if (!IupIsOpened())
    return;

  IupGLCanvasOpen();

  if (!IupGetGlobal("_IUP_MGLPLOT_OPEN"))
  {
    iupRegisterClass(iMglPlotNewClass());
    iupRegisterClass(iMglLabelNewClass());
    IupSetGlobal("_IUP_MGLPLOT_OPEN", "1");
  }
}


/************************  TODO   ***********************************

Render Feedback?
OpenMP
UTF-8

New from PPlot:
  IupPPlotGetSample IupPPlotGetSampleStr
  New: attributes REMOVE and CURRENT in IupPPlot now also accepts the DS_NAME as value when setting.
  iupClassRegisterAttribute(ic, "SYNCVIEW", iPPlotGetSyncViewAttrib, iPPlotSetSyncViewAttrib, NULL, NULL, IUPAF_NO_INHERIT);
  New: PLOT_COUNT, PLOT_NUMCOL, PLOT_CURRENT, PLOT_INSERT and PLOT_REMOVE attributes for IupPPlot to support multiple plots in the same display area.
  New: PLOTBUTTON_CB and PLOTMOTION_CB calbacks for IupPPlot.

Known Issues:
  - *** text render quality is poor
  - font size scale if canvas size is changed
  ------------------------------------
  - Piechart depends on SetFunc
  - *** DrawValues text rotation not correctly computed
  - *** Logarithm scale crashes in DrawLabel
  - OpenGL mode makes some 3D modes affect 2D modes (Bars, Barh, Radar, ...)
  - *** OpenGL inicial size is smaller
  ------------------------------------
  - (IUP) More tick options
  - (IUP) Improve Bar at origin
  - (IUP) TicksVal should follow ticks spacing configuration
  - (IUP) improve autoticks computation

Other:
  AddLight and Fog
  Cutting
  Curvilinear coordinates
  Plots that need two datasets: BoxPlot, Region, Tens, Mark, Error, Flow, Pipe, Ring, Candle, 
                                OHLC, Tube, Tape, Torus, SurfC, TileS, Dew, Traj, Vect
     chart and bars can be combined in one plot (bars then can include above and fall)
  Reference datasets
     dataset can be a pointer to the previous data, 
     so the same data can be displayed using different modes using the same memory
  Other Plots: Cones, ContV, TriPlot, QuadPlot
  Ternary Axis
  IupMglPlotDrawCurve and IupMglPlotDrawFace

**************************************************************************************/