Hi

I have successfully used the exporter to export 2D charts and pie charts to all the image formats.  However, if I try to export a 2D or 3D surface (NCartesianChart with NTriangulatedSurfaceSeries data) then the chart area is blank (for a 2D contour) or just shows one wall (3D surface) for all vector based formats. Is this a known limitation related to the nature of these formats?

Thanks

Kevin

Hi Kevin,

Currently 3D charts can be exported only in raster formats. Vector formats (like PDF, Flash etc) are supported only for 2D charts.

Surface charts are available only in 3D mode (flat contour charts are also rendered with the 3D engine), which means that they can be exported only in raster formats.

Best Regards,
Nevron Support Team

In that case, I need to detect when the export won't be correct for the vector formats.  If you use the dialog, you get a warning. Is there somewhere in code I can achieve the same thing?

Thanks

Kevin

Hi Kevin,

You can detect whether the control requires 3D rendering capabilities by iterating through the charts collection and checking the Enable3D property - for example:

  private static bool Requires3D(NChartControl control)
  {
   int count = control.Charts.Count;
   for (int i = 0; i < count; i++)
   {
    if (control.Charts[i].Enable3D)
    {
     return true;
    }
   }

   return false;
  }

Returns true if the control requires 3D and false if all charts are in 2D mode.

 

Thanks. I was trying to use the ChartControl Render settings, but not getting very far!

Actually, your code is too strict.  For example, it excludes a 3D pie chart, which will export OK (2D for some formats, 3D for others).  Is there a more rigorous check I can apply?

Thanks

Kevin

Hi Kevin,

The check can be based on the chart type + series types contained in it - the following list shows which series support only 2D or 3D:

--------------------------2D Only----------------------------------------
Radar Line
Radar Area
Polar Point
Polar Line
Polar Area
Venn
Box & Whiskers
Kagi
Renko
Point and Figure
Three Line Break
Line Studies

--------------------------3D Only----------------------------------------
Grid Surface
Mesh Surface
Triangulated Surface

Hope this helps - let us know if you meet any problems or have any questions.

Best Regards,
Nevron Support Team