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Create HydrologyOp Basin Raster Snippet (ArcObjects .NET 10.6 SDK)
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This document is archived and information here might be outdated. Recommended version. |
Create a hydrology basin raster from an input direction of flow GeoDataset.
/// <summary>
/// Create a hydrology basin raster from an input direction of flow GeoDataset.
/// </summary>
/// <param name="geoDataset">An IGeoDataset interface that has direction of flow cell values that will be computed.</param>
/// <returns>An IGeoDataset interface that contains new drainage basin values.</returns>
/// <remarks>
/// Note: the input geoDataset must be of Type IRaster, IRasterDataset, IRasterBand, or IRasterDescriptor.
///
/// The input GeoDataset shows the direction of flow out of each cell. This Raster can be created using
/// the IHydrologyOp.FlowDirection method.
///
/// For information about the IHydrologyOp.Basin Method see:
/// http://edndoc.esri.com/arcobjects/9.2/ComponentHelp/esriSpatialAnalyst/IHydrologyOp_Basin.htm
///
/// For more information on working with the ArcGIS Spatial Anaylst objects see:
/// http://edndoc.esri.com/arcobjects/9.2/CPP_VB6_VBA_VCPP_Doc/COM/VB6/working/work_rasters/sptl_analyst_objs.htm
/// </remarks>
public ESRI.ArcGIS.Geodatabase.IGeoDataset CreateHydrologyOpBasinRaster(ESRI.ArcGIS.Geodatabase.IGeoDataset geoDataset)
{
if (geoDataset is ESRI.ArcGIS.Geodatabase.IRaster | geoDataset is ESRI.ArcGIS.Geodatabase.IRasterDataset | geoDataset is ESRI.ArcGIS.DataSourcesRaster.IRasterBand | geoDataset is ESRI.ArcGIS.GeoAnalyst.IRasterDescriptor)
{
// Create the RasterHydrologyOp object
ESRI.ArcGIS.SpatialAnalyst.IHydrologyOp hydrologyOp=new ESRI.ArcGIS.SpatialAnalyst.RasterHydrologyOpClass();
// Declare the output raster
ESRI.ArcGIS.Geodatabase.IGeoDataset geoDataset_output=hydrologyOp.Basin(geoDataset);
return geoDataset_output;
}
else
{
//Invalid type of GeoDataset for this process
return null;
}
}
''' <summary>
''' Create a hydrology basin raster from an input direction of flow GeoDataset.
''' </summary>
''' <param name="geoDataset">An IGeoDataset interface that has direction of flow cell values that will be computed.</param>
''' <returns>An IGeoDataset interface that contains new drainage basin values.</returns>
''' <remarks>
''' Note: the input geoDataset must be of Type IRaster, IRasterDataset, IRasterBand, or IRasterDescriptor.
'''
''' The input GeoDataset shows the direction of flow out of each cell. This Raster can be created using
''' the IHydrologyOp.FlowDirection method.
'''
''' For information about the IHydrologyOp.Basin Method see:
''' http://edndoc.esri.com/arcobjects/9.2/ComponentHelp/esriSpatialAnalyst/IHydrologyOp_Basin.htm
'''
''' For more information on working with the ArcGIS Spatial Anaylst objects see:
''' http://edndoc.esri.com/arcobjects/9.2/CPP_VB6_VBA_VCPP_Doc/COM/VB6/working/work_rasters/sptl_analyst_objs.htm
''' </remarks>
Public Function CreateHydrologyOpBasinRaster(ByVal geoDataset As ESRI.ArcGIS.Geodatabase.IGeoDataset) As ESRI.ArcGIS.Geodatabase.IGeoDataset
If (TypeOf geoDataset Is ESRI.ArcGIS.Geodatabase.IRaster _
Or TypeOf geoDataset Is ESRI.ArcGIS.Geodatabase.IRasterDataset _
Or TypeOf geoDataset Is ESRI.ArcGIS.DataSourcesRaster.IRasterBand _
Or TypeOf geoDataset Is ESRI.ArcGIS.GeoAnalyst.IRasterDescriptor) Then
' Create the RasterHydrologyOp object
Dim hydrologyOp As ESRI.ArcGIS.SpatialAnalyst.IHydrologyOp=New ESRI.ArcGIS.SpatialAnalyst.RasterHydrologyOpClass
' Declare the output raster
Dim geoDataset_output As ESRI.ArcGIS.Geodatabase.IGeoDataset=hydrologyOp.Basin(geoDataset)
Return geoDataset_output
Else
'Invalid type of GeoDataset for this process
Return Nothing
End If
End Function