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March 18, 2023 13:52
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Python code to convert from EPSG:4326 to EPSG:900913 and vice versa
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| def epsg_4326_to_900913(lon, lat): | |
| x = lon * 20037508.34 / 180 | |
| y = (math.log(math.tan((90 + lat) * math.pi / 360)) / (math.pi / 180)) * (20037508.34 / 180) | |
| return x, y | |
| def epsg_900913_to_4326(x, y): | |
| lon = x * 180 / 20037508.34 | |
| lat = (360 / math.pi) * math.atan(math.exp(y * math.pi / 20037508.34)) - 90 | |
| return lon, lat |
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Thx for the convertion, it's really work for geoengine aplication to calculate extent of map.