Hi,
I'm trying to follow the ArcObject sample codes for calculating zonal statistics as table. I'm not getting an error but at the same time, there is no output. I notice the difference between this SpatialAnalyst ArcObject and the SpatialAnalystTool's ZonalStatisticsAsTable: The ArcObject version is missing the output table name. I don't know where to specify this in the ArcObject version. Here's a snippet of my code:
//Create a Feature Class Descriptor object for input shapefile zones
IFeatureClassDescriptor aoiDesc = new FeatureClassDescriptorClass();
string zoneField = "HydroID";
IFeatureClass aoiFc = OpenFeatureClassFromShapefiile(polygonPath, polygonName);
IGeoDataset aoiGds = (IGeoDataset)aoiFc;
aoiDesc.Create(aoiFc, null, zoneField);
aoiGds = (IGeoDataset)aoiDesc;
//Create a Raster Descriptor object for input raster values
IRaster ras = new RasterClass();
ras = OpenRasterDataset(exprasPath, exprasName).CreateDefaultRaster();
IRasterDescriptor rasDesc = new RasterDescriptorClass();
string rasValue = "VALUE";
rasDesc.Create(ras, null, rasValue);
IGeoDataset rasGds = (IGeoDataset)rasDesc;
//Create an instance of the output table object
ITable stats = null;
//Initialize an IZonalOp object
ESRI.ArcGIS.SpatialAnalyst.IZonalOp zoneOp = new ESRI.ArcGIS.SpatialAnalyst.RasterZonalOpClass();
//Perform spatial operation
stats = zoneOp.ZonalStatisticsAsTable(aoiGds, rasGds, true);
Appreciate any suggestion on how to get this to work.
