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Proximity to polygon edge #35

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lukepighetti opened this issue Jan 1, 2021 · 1 comment

lukepighetti commented Jan 1, 2021 •

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I'd like to be able to query the two closest polygon edges to a single point. Any ideas?

Use case: tell the user which country border they are closest to. "You are 15km from the France/Germany border!"

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synw commented Jan 1, 2021

An idea: if you have the polygon's centroids your could get the closest polygons with a cheap points distance calculation ( https://github.com/wingkwong/geodesy#distancebetweentwogeopointslatlng-l1-latlng-l2-num-radius ). Then you can get the closest point in these polygons

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