Original User: Nordberg1983Hi all!I have following issue:I have a point feature class which I want to thin out scale dependently. For that I'm using the class IScaleDependentRenderer.Please check the code below. The problem is that I don't see any symbols on the map after running that piece of code.Any ideas?Thanks!!!
IFeatureLayer layer = _selectedLayer as IFeatureLayer;
IScaleDependentRenderer renderer = new ScaleDependentRendererClass();
List<double> breaks = new List<double>();
breaks.Add(500.0);
breaks.Add(1000.0);
breaks.Add(2000.0);
breaks.Add(5000.0);
IGeoFeatureLayer geoFeatureLayer;
geoFeatureLayer = (IGeoFeatureLayer)layer;
List<int> frequencySteps = _frequencySteps;
for (int i = 0; i < frequencySteps.Count; i++)
{
IFeatureCursor featureCursor = pFeatureClass.Search(null, false);
int sum = 1;
int freq = frequencySteps;
IFeature feature = featureCursor.NextFeature();
IFeatureIDSet exclusionSet = new FeatureIDSetClass();
ISimpleRenderer sRenderer = new SimpleRendererClass();
ISimpleMarkerSymbol sym = new SimpleMarkerSymbolClass();
sym.Style = esriSimpleMarkerStyle.esriSMSCircle;
sym.Size = 30;
sRenderer.Symbol = (ISymbol)sym;
IFeatureRenderer fRenderer = (IFeatureRenderer)sRenderer;
while (feature != null)
{
if (sum == freq)
{
sum = 1;
}
else
{
exclusionSet.Add(feature.OID);
}
sum++;
feature = featureCursor.NextFeature();
}
fRenderer.ExclusionSet = exclusionSet;
renderer.AddRenderer(fRenderer);
renderer.set_Break(i, breaks);
System.Runtime.InteropServices.Marshal.ReleaseComObject(featureCursor);
geoFeatureLayer.Renderer = (IFeatureRenderer)renderer;
}
