Create a marker mask from a representation

CedricDELPAS — Fri, 18 Dec 2015 09:11:57 GMT

Hi,

I have created a tool in C# in order to create Mask symbol around the symbol feature.

To do that, I use the IMarkermask interface and the QueryMarkerMask function.

Like this:

IGeoFeatureLayer iGFL = iL as IGeoFeatureLayer;

if (iGFL != null)

{

IFeatureRenderer iFR = iGFL.Renderer;

if (iFR != null)

{

IPolygon iPG = new PolygonClass();

ISymbol iS = iFR.get_SymbolByFeature(iF);

if (iS != null)

{

IMarkerMask iMM = iS as IMarkerMask;

if (iMM != null)

{

IGeometry iGShape = iF.ShapeCopy;

if (iGShape != null)

{

iGShape.Project(ESRI_Constant.Object._FocusMap.SpatialReference);

pAV.ScreenDisplay.StartDrawing(pAV.ScreenDisplay.hDC, 0);

iMM.QueryMarkerMask(pAV.ScreenDisplay.hDC, iDRet, iGShape, iPG);

pAV.ScreenDisplay.FinishDrawing();

It works fine for a layer with a classic symbology.

But if the layer use a Representation as symbology, this code doesn't work: the line ISymbol iS = iFR.get_SymbolByFeature(iF) return null.

How can I get an ISymbol from a feature using an IRepresentationRenderer?

Or, more generally, how can I get a mask geometry for a Marker representation?

Thanks!

Best regards

topic Create a marker mask from a representation in Developers Questions