31 lines
1009 B
Python
31 lines
1009 B
Python
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from django.contrib.gis.geos.base import GEOSBase
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from django.contrib.gis.geos.geometry import GEOSGeometry
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from django.contrib.gis.geos.prototypes import prepared as capi
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class PreparedGeometry(GEOSBase):
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"""
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A geometry that is prepared for performing certain operations.
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At the moment this includes the contains covers, and intersects
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operations.
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"""
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ptr_type = capi.PREPGEOM_PTR
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def __init__(self, geom):
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if not isinstance(geom, GEOSGeometry): raise TypeError
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self.ptr = capi.geos_prepare(geom.ptr)
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def __del__(self):
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if self._ptr: capi.prepared_destroy(self._ptr)
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def contains(self, other):
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return capi.prepared_contains(self.ptr, other.ptr)
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def contains_properly(self, other):
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return capi.prepared_contains_properly(self.ptr, other.ptr)
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def covers(self, other):
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return capi.prepared_covers(self.ptr, other.ptr)
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def intersects(self, other):
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return capi.prepared_intersects(self.ptr, other.ptr)
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