Polygon to Raster

UlrichStroetz — Wed, 10 Oct 2012 10:25:39 GMT

Hi all,

I want to convert landuse polygons to raster. The position an size of the new raster with the landuse values shall be based on a fishnet/grid polygon shapefile.

Any suggestions how do this? I am completely new to raster data.

Thanks,

Uli

Re: Polygon to Raster

CarrieDavis — Thu, 11 Oct 2012 16:18:42 GMT

Hi Uli,

You may convert a polygon feature into a raster using the Polygon to Raster tool located in the To Raster toolset in the Conversion toolbox. This tool will create a thematic raster based on the numeric or string LU field. The raster will be a grid of pixels (cells) identifying the LU location and value. These pixels have a cell size of a certain defined square area. You may specify your cell size in the Polygon to Raster tool.

If you are working with a geodatabase I would recommend creating a geodatabase raster, otherwise a *.tif or *.img format are common to use for this type of data. Below is an exhaustive list of the raster file types that ArcGIS will work with and some documentation on the polygon to Raster tool.

Polygon to Raster (Conversion)
http://resources.arcgis.com/en/help/main/10.1/index.html#//001200000030000000

Supported raster dataset file formats
http://resources.arcgis.com/en/help/main/10.1/index.html#//009t0000000q000000

Cell size of raster data (onine documentation)
http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//009t00000004000000

I'm not sure what your complete workflow is? Is your polygon already aggregated by LU in a grid type areas or do you want to aggregate the LU raster created by the LU polygons into a grid?

Best wishes with your project.

Carrie

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Polygon to Raster

Re: Polygon to Raster