Thanks, this works great. The input data I showed you was simplified. My real input data gives the latitude (from -90 to 90) & longitude (0 to 360) for each corner of the image. Now I am trying to adapt the code to these new requirements. The difficult part is that when an image crosses the 0 to 360 longitude line the code can't correctly identify what it overlaps with. I need an elegant solution to this.

In reply to Re^2: Permutation and comparison loop by spacegeologist
in thread Permutation and comparison loop by spacegeologist

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