Nikolay kalombos
kalombos
/ google_maps_polygon.py
Last active
August 31, 2023 21:48
This is a solution for polygon selection in google maps. Some polygons can across antimeridian which will be getting wrong by postgis when you make ST_Within query, for example. So, this function allows to split polygon to multipolygon, parts of wich are contained in both hemispheres if needs
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| # -*- coding: utf-8 -*- | |
| from django.contrib.gis.geos import MultiPolygon, GEOSGeometry | |
| from django.db import connection | |
| def is_crossed_antimeridian(polygon): | |
| crossed = False | |
| coords = [] | |
| for polygon_set in polygon: | |
| for (lng, lat) in polygon_set: |