Are there any data requirements for choosing a 3D graph style

[ryan@gar]

I implemented the following code in my program (taken from the 3D graph example).  I initially draw my graph as a surface and this code works to change the style to a point graph, but it does not allow me to change it back to the surface plot (these are my only 2 options in my ring control).  The example program does exactly what I want, but it isn't working here.  I don't think there is anything changed from the program, so I don't understand what would be causing the issue, and I've verified in the degbugger that the correct calls are being made in the case statement.  Is there a dependancy that I'm not aware of for changing a point graph to a surface graph?

Any ideas?

Thanks

Ryan

int CVICALLBACK GRAPH_RING (int panel, int control, int event,
  void *callbackData, int eventData1, int eventData2)
{
    int style;
    switch (event)
        {
        case EVENT_COMMIT:
            //Set Plot Style to selected mode
            GetCtrlVal (sat_panel_handle, SAT_FORM_GRAPH_RING, &style);
            switch (style)
                {
                case 0:
                    CW3DGraphLib_CWPlot3DSetStyle (threeDplotHandle, NULL, CW3DGraphLibConst_cwLine);
                break;
                case 1:
                    CW3DGraphLib_CWPlot3DSetStyle (threeDplotHandle, NULL, CW3DGraphLibConst_cwPoint);
                break;
                case 2:
                    CW3DGraphLib_CWPlot3DSetStyle (threeDplotHandle, NULL, CW3DGraphLibConst_cwLinePoint);
                break;
                case 3:
                    CW3DGraphLib_CWPlot3DSetStyle (threeDplotHandle, NULL, CW3DGraphLibConst_cwHiddenLine);
                break;
                case 4:
                    CW3DGraphLib_CWPlot3DSetStyle (threeDplotHandle, NULL, CW3DGraphLibConst_cwSurface);
                break;
                case 5:;
                    CW3DGraphLib_CWPlot3DSetStyle (threeDplotHandle, NULL, CW3DGraphLibConst_cwSurfaceLine);
                break;
                case 6:
                    CW3DGraphLib_CWPlot3DSetStyle (threeDplotHandle, NULL, CW3DGraphLibConst_cwSurfaceNormal);
                break;
                case 7:
                    CW3DGraphLib_CWPlot3DSetStyle (threeDplotHandle, NULL, CW3DGraphLibConst_cwContourLine);
                break;
                case 8:
                    CW3DGraphLib_CWPlot3DSetStyle (threeDplotHandle, NULL, CW3DGraphLibConst_cwSurfaceContour);
                break;
            }              
            break;
        }
    return 0;
}