Erase Raster with Polygons

Running programmatically

Erases a raster dataset with the polygons of the input polygon feature class.

Inputs:

• Input raster dataset.
• Output raster name and format.
• Input Erase polygon dataset.

Output:

• A raster with cell values equal to the cell values of the input raster, but only in the locations outside of the erase polygons.
• Areas in the erase polygons are assigned a value of NODATA.

Examples:

Input raster and erase polygons

Result raster

Notes:

• The output raster will have the extent of the input raster.
• If the erase dataset is not with the same spatial reference as the input raster, it will be projected to the spatial referense of the raster and the erasing will be done with the projected features. If projection parameters can not be established, no output will be created and an error will be recorded in the Log file.
• All raster cells with centers within the erase polygons will be assigned a value of NODATA.
• The input format accepted are file based rasters - ERDAS IMAGINE or Tagged Image File Format (TIFF).
• The .NET ToolBox for ArcGIS Desktop accepts also FileGDB Raster inputs.
• For file based rasters initially the name of the output raster define the raster format:
  • .img extension (for example raster1.img) - ERDAS IMAGINE image.
  • .tif extension (for example raster1.tif) - TIFF image.
  • The initial output raster format can be changed by selecting the desired output in the dialog.

Running Programmatically

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Parameters

Running the function

ETSPath used in the table below is the full path to ETSRun.exe (E.G. "C:\Program Files\ETSpatial Techniques\ETSurface\ETSRun.exe")

Notes:

• <> - required parameter

• {} - optional parameter

• See examples for Python , .NET or ArcPy

• The argument separator for StartInfo.Arguments is space. If a string might contain a space, you need to double quote it.

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