empty datapoints in mesh surface

[User (Old forums)]

#18839 |

Hi,

I’m trying to draw a mesh surface, with draw flat, zone colouring, with using empty data point when data is not available for them.
Take an example of a “grid” of 3 by 3.
If all 9 point have data the surface the countour map is draw perfect.
If I remove data for the middle points in the outter lines, the surface is draw incorrectly, sometimes with nothing being draw at all.

The basic settings I’m using:
m_Surface[layer].FillStyle = SurfaceFillStyle.Zone;
m_Surface[layer].FrameStyle = SurfaceFrameStyle.None;
m_Surface[layer].FrameLine.Width = 0;
m_Surface[layer].DrawFlat = true;
m_Surface[layer].AutomaticPalette = false;
m_Surface[layer].PositionMode = SurfacePositionMode.CustomValue;
m_Surface[layer].PositionValue = layer * dIncrementY;

To add point data:
if (!temp.Equals(double.NaN))
{
m_Surface[layer].Data.SetValue(x, z, temp, x, z);
}
else
{
m_Surface[layer].Data.SetValue(x, z, DBNull.Value, x, z);
}

What I’m doing wrong?
Any help is appreciated.

Imported from legacy forums. Posted by Jose (had 2190 views)

[Xceed Support]

#18840

By default, the EmptyDataPointsValueMode is set to Skip. You need to change it to Average (or a custom value). With more common series (like PointSeries), you can easily get to the EmptyDataPointsValueMode. With a MeshSurfaceSeries, you need to use the GetDataSeries method:

<code>
//After filling your chart

DataSeriesCollection coll = m_Surface[layer].GetDataSeries( DataSeriesMask.Values, DataSeriesMask.None, true );

foreach( DataSeries ds in coll )
{
ds.EmptyDataPoints.ValueMode = EmptyDataPointsValueMode.Average;
}
</code>

Imported from legacy forums. Posted by CharlesB (had 3108 views)

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