gis.db.models.functions.SymDifference

class SymDifference(expr1, expr2, **extra)

Availability: MySQL (≥ 5.6.1), PostGIS, Oracle, SpatiaLite

Accepts two geographic fields or expressions and returns the geometric symmetric difference (union without the intersection) between the given parameters.

Changed in Django 1.10:

MySQL support was added.

Links:

https://docs.djangoproject.com/en/1.10/ref/contrib/gis/functions/#django.contrib.gis.db.models.functions.SymDifference

doc_Django

2016-10-09 18:37:25

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