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Editorial Team
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Asked: 2026-05-20T14:12:36+00:00

I extracted country outline data from somewhere and successfully managed to convert it into

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I extracted country outline data from somewhere and successfully managed to convert it into an array of lat-lng coordinates that I can feed to Google maps API to draw polyline or polygons.

The problem is that that there are about 1200+ points in that shape. It renders perfectly in Google maps but I need to reduce the number of points from 1200 to less than 100. I don’t need a very smooth outline, i just need to throw away the points that I can live without. Any algorithm or an online tool that can help me reduce the number of points is needed.

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1 Answer

  1. Editorial Team

    I think MapShaper can do this online

    Otherwise, implement some algorithm

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