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A "difference" operation is a geoprocessing operation that completely removes one overlapping polygon and the intersection of that polygon from the other. It uses one polygon to "take a bite" out of another.

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2 answers
145 views

How can I get QGIS Difference tool to operate on different CRS? Or can I project a polygon t...

I am attempting to map arctic regions. I have a predetermined area off the coast of Alaska that has longitudes both negative and positive. In a north pole azimuthal equidistant projection, it looks as …
Shawn Cunningham's user avatar
0 votes

How can I get QGIS Difference tool to operate on different CRS? Or can I project a polygon t...

I was able to manipulate QGIS to process the yellow region as all negative longitudes, solving my issue by subtracting 360 degrees from the positive longitudes, resulting in this polygon:
Shawn Cunningham's user avatar