| 1 | Index: contrib/gis/db/models/fields/__init__.py
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| 2 | ===================================================================
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| 3 | --- contrib/gis/db/models/fields/__init__.py (revision 5178)
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| 4 | +++ contrib/gis/db/models/fields/__init__.py (working copy)
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| 5 | @@ -64,6 +64,7 @@
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| 6 | setattr(cls, 'get_%s_wkt' % self.name, curry(cls._get_GEOM_wkt, field=self))
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| 7 | setattr(cls, 'get_%s_centroid' % self.name, curry(cls._get_GEOM_centroid, field=self))
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| 8 | setattr(cls, 'get_%s_area' % self.name, curry(cls._get_GEOM_area, field=self))
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| 9 | + setattr(cls, 'get_%s_convex_hull' % self.name, curry(cls._get_GEOM_convex_hull, field=self))
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| 10 |
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| 11 | def get_internal_type(self):
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| 12 | return "NoField"
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| 13 | Index: contrib/gis/db/models/GeoMixin.py
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| 14 | ===================================================================
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| 15 | --- contrib/gis/db/models/GeoMixin.py (revision 5178)
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| 16 | +++ contrib/gis/db/models/GeoMixin.py (working copy)
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| 17 | @@ -1,5 +1,5 @@
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| 18 | # GEOS Routines
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| 19 | -from django.contrib.gis.geos import GEOSGeometry, hex_to_wkt, centroid, area
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| 20 | +from django.contrib.gis.geos import GEOSGeometry, hex_to_wkt, centroid, area, convex_hull
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| 21 |
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| 22 | # Until model subclassing is a possibility, a mixin class is used to add
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| 23 | # the necessary functions that may be contributed for geographic objects.
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| 24 | @@ -27,4 +27,8 @@
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| 25 | hex = getattr(self, field.attname)
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| 26 | return area(hex)
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| 27 |
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| 28 | + def _get_GEOM_convex_hull(self, field):
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| 29 | + "Gets the convex hull of the geometry."
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| 30 | + hex = getattr(self, field.attname)
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| 31 | + return convex_hull(hex)
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| 32 |
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| 33 | Index: contrib/gis/geos/__init__.py
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| 34 | ===================================================================
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| 35 | --- contrib/gis/geos/__init__.py (revision 5178)
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| 36 | +++ contrib/gis/geos/__init__.py (working copy)
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| 37 | @@ -15,4 +15,7 @@
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| 38 | def area(input, geom_type='hex'):
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| 39 | "Returns the area of the geometry (given in HEXEWKB)."
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| 40 | return GEOSGeometry(input, geom_type).area
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| 41 | -
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| 42 | +
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| 43 | +def convex_hull(input, geom_type='hex'):
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| 44 | + "Returns the convex hull of the geometry"
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| 45 | + return GEOSGeometry(input, geom_type).convex_hull
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