I'm trying to figure out (and eventually convert to WGS) projection system of coordinates I get from one web API service. As an example - lat, long = 71804125, 180232666 is a point in Cracow, Poland. Any ideas what it can be?

  • Can't be lat/long, units are not in degrees eg. lat would expect values +/- 0 to 90 and long +/- 0 to 180 – nmtoken Nov 19 '18 at 14:26
  • What's the web service? Do they have any documentation? – rbkb Nov 19 '18 at 14:44
  • It's not epsg:3857 or epsg:32634 (utm). rbkb is right--you should find your answer in the API documentation. – Jon Nov 19 '18 at 15:05
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    Ok, I've solved it. Checked website source and it turned out that it's just WGS multiplied by 3600000. No idea why anyone would do something like this. – drafa Nov 19 '18 at 15:18
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    The lon/lat angles here seem to have been expressed in milliarcseconds. Hence a division by 3,600,000 converts them back to degrees. – FSimardGIS Nov 19 '18 at 17:06

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