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I have a raster of continuous numeric values. A certain portion of said raster overlaps with a polygon of interest. I want to know which cells overlap, and assign values to the raster's attribute table corresponding to whether or not there is overlap (e.g. 0 for no overlap with polygon, 1 for overlap).

Ideally it would be great to be able to set an overlap threshold so that only raster cells where there is more than 50% overlap are assigned a "1". Not a must, but would be very helpful.

  • Does this answer your question: gis.stackexchange.com/q/40474/8104? – Aaron Feb 22 '15 at 5:18
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    Aaron, thanks for pointing me to that link. I ended up rasterizing the polygon to the extent of the original raster, and simply reclassified the rasterized polygon so that areas overlapping with the original raster were coded as 1 and the remaining cells were coded as 0. A much simpler solution than I thought I needed. – SilvanD Feb 23 '15 at 0:00
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I ended up rasterizing the polygon to the extent of the original raster, and simply reclassified the rasterized polygon so that areas overlapping with the original raster were coded as 1 and the remaining cells were coded as 0.

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