au

Criteria for raster cell extraction by mask

Discussion created by au on Sep 28, 2011
Latest reply on Oct 30, 2013 by tlaxson
Hello,

I am using Spatial Analyst -> Extraction -> Extract by mask  to extract cells from a raster grid using a polygon shapefile as  the mask. I was hoping to find out what condition ArcMap uses to perform the extraction and how it selects which cells to extract when they lie on the shapefile boundary (i.e. when part of the cell is within the polygon and part of it outside it). Does ArcMap extract the cells if a certain percentage of the boundary cell is located inside the shapefile polygon or what criteria does it use exactly? I need this information for academic research purposes. I am using default environment settings.

thank you in advance!

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