Create a raster that has Euclidean allocation to the closest source.
[C#]
/// <summary>
/// Create a raster that has Euclidean allocation to the closest source.
/// </summary>
/// <param name="geoDataset">An IGeoDataset interface that identifies those cells or locations whose values are assigned to the output cell locations that they are closest to.</param>
/// <returns>An IGeoDataset interface that has Euclidean allocation to the closest source.</returns>
/// <remarks>
/// Note: the input geoDataset's must be of Type IRaster, IRasterDataset, IRasterBand, IRasterDescriptor or IFeatureClass.
///
/// The IDistanceOp.EucDistanceFull Method has two options (maxDistance and valueRaster) that
/// will greatly vary the output raster. Thess values will need to be adjusted for your application to achieve
/// the desired results.
///
/// For information about the IDistanceOp.EucDistanceFull Method see:
/// http://edndoc.esri.com/arcobjects/9.2/ComponentHelp/esriSpatialAnalyst/IDistanceOp_EucDistanceFull.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 CreateDistanceOpEucDistanceFullAllocationRaster(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 | geoDataset is ESRI.ArcGIS.Geodatabase.IFeatureClass)
{
// Create the RasterDistanceOp object
ESRI.ArcGIS.SpatialAnalyst.IDistanceOp distanceOp = new ESRI.ArcGIS.SpatialAnalyst.RasterDistanceOpClass();
// Declare the output raster object
//Note: Adjust the IDistanceOp.EucDistanceFull method options to suit your applications need.
object object_missing1 = System.Type.Missing;
object object_missing2 = System.Type.Missing;
ESRI.ArcGIS.Geodatabase.IGeoDataset geoDataset_result = distanceOp.EucDistanceFull(geoDataset, false, false, true, ref object_missing1, ref object_missing2);
// Access the Euclidean allocation raster from the output generated
ESRI.ArcGIS.DataSourcesRaster.IRasterBandCollection rasterBandCollection = (ESRI.ArcGIS.DataSourcesRaster.IRasterBandCollection)geoDataset_result; // Explicit Cast
ESRI.ArcGIS.DataSourcesRaster.IRasterBand rasterBand = rasterBandCollection.Item(1);
ESRI.ArcGIS.Geodatabase.IGeoDataset geoDataset_output = (ESRI.ArcGIS.Geodatabase.IGeoDataset)rasterBand; // Explicit Cast
return geoDataset_output;
}
else
{
//Invalid type of GeoDataset for this process
return null;
}
}
[Visual Basic .NET]
''' <summary>
''' Create a raster that has Euclidean allocation to the closest source.
''' </summary>
''' <param name="geoDataset">An IGeoDataset interface that identifies those cells or locations whose values are assigned to the output cell locations that they are closest to.</param>
''' <returns>An IGeoDataset interface that has Euclidean allocation to the closest source.</returns>
''' <remarks>
''' Note: the input geoDataset's must be of Type IRaster, IRasterDataset, IRasterBand, IRasterDescriptor or IFeatureClass.
'''
''' The IDistanceOp.EucDistanceFull Method has two options (maxDistance and valueRaster) that
''' will greatly vary the output raster. Thess values will need to be adjusted for your application to achieve
''' the desired results.
'''
''' For information about the IDistanceOp.EucDistanceFull Method see:
''' http://edndoc.esri.com/arcobjects/9.2/ComponentHelp/esriSpatialAnalyst/IDistanceOp_EucDistanceFull.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 CreateDistanceOpEucDistanceFullAllocationRaster(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 _
Or TypeOf geoDataset Is ESRI.ArcGIS.Geodatabase.IFeatureClass) Then
' Create the RasterDistanceOp object
Dim distanceOp As ESRI.ArcGIS.SpatialAnalyst.IDistanceOp = New ESRI.ArcGIS.SpatialAnalyst.RasterDistanceOpClass
' Declare the output raster object
'Note: Adjust the IDistanceOp.EucDistanceFull method options to suit your applications need.
Dim object_missing1 As System.Object = System.Type.Missing
Dim object_missing2 As System.Object = System.Type.Missing
Dim geoDataset_result As ESRI.ArcGIS.Geodatabase.IGeoDataset = distanceOp.EucDistanceFull(geoDataset, False, False, True, object_missing1, object_missing2)
' Access the Euclidean allocation raster from the output generated
Dim rasterBandCollection As ESRI.ArcGIS.DataSourcesRaster.IRasterBandCollection = CType(geoDataset_result, ESRI.ArcGIS.DataSourcesRaster.IRasterBandCollection) ' Explicit Cast
Dim rasterBand As ESRI.ArcGIS.DataSourcesRaster.IRasterBand = rasterBandCollection.Item(1)
Dim geoDataset_output As ESRI.ArcGIS.Geodatabase.IGeoDataset = CType(rasterBand, ESRI.ArcGIS.Geodatabase.IGeoDataset) ' Explicit Cast
Return geoDataset_output
Else
'Invalid type of GeoDataset for this process
Return Nothing
End If
End Function