var title : NLabel := nChartControl1.Labels.AddHeader ("Grid Surface Chart");

title.TextStyle.FontStyle := new NFontStyle("Times New Roman", 14, FontStyle.Italic);

title.TextStyle.ShadowStyle.Type := ShadowType.LinearBlur;

var Chart : NCartesianChart := new NCartesianChart ();

nChartControl1.Charts.Clear();

nChartControl1.Charts.Add(chart);

chart.Enable3D := true;

chart.Width := 55;

chart.Depth := 70;

chart.Height := 30;

chart.Projection.Type := ProjectionType.Perspective;

chart.Projection.Elevation := 30;

chart.Projection.Rotation := -60;

chart.LightModel.SetPredefinedLightModel(PredefinedLightModel.None); //.NorthernLights);

var XL : Byte := 40;

var ZL : Byte := 40;

var Surface : NGridSurfaceSeries := NGridSurfaceSeries (chart.Series.Add(SeriesType.GridSurface));

chart.Series.Add(Surface);

surface.Name := "Surface";

surface.Legend.Mode := SeriesLegendMode.SeriesLogic;

surface.Legend.TextStyle.FontStyle.EmSize := new NLength(8, NGraphicsUnit.Point);

surface.PositionValue := 10.0;

Surface.Data.Clear;

surface.Data.SetGridSize (XL, ZL);

surface.SyncPaletteWithAxisScale := FALSE;

surface.PaletteSteps := 16; //132; //16; ;

surface.ValueFormatter.FormatSpecifier := "0.0";

for I : Int32 := 1 to XL - 1 do

for J : Int32 := 1 to ZL - 1 do

Attachments

Surface.doc (129 views, 144.00 KB)

Hi Janusz,
The problem is that the same surface series instance is being added two times to the series collection. In other words when you use the following code:

 var Surface : NGridSurfaceSeries := NGridSurfaceSeries (chart.Series.Add (SeriesType.GridSurface));

you must not call Add again with the same series:

 chart.Series.Add(Surface); // please remove this line

Unfortunately, the chart control doesn't throw an exception in this situation, which is somewhat misleading. We will try to fix this in the next service pack.