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Viewing changes to django/contrib/gis/geos/prototypes/predicates.py

  • Committer: Bazaar Package Importer
  • Author(s): Chris Lamb
  • Date: 2010-05-21 07:52:55 UTC
  • mfrom: (1.3.6 upstream)
  • mto: This revision was merged to the branch mainline in revision 28.
  • Revision ID: james.westby@ubuntu.com-20100521075255-ii78v1dyfmyu3uzx
Tags: upstream-1.2
Import upstream version 1.2

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django/contrib/gis/geos/prototypes/predicates.py
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 unary and binary predicate operations on geometries.
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"""
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from ctypes import c_char, c_char_p, c_double
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from django.contrib.gis.geos.libgeos import lgeos, GEOM_PTR
 
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from django.contrib.gis.geos.libgeos import GEOM_PTR
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from django.contrib.gis.geos.prototypes.errcheck import check_predicate
 
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from django.contrib.gis.geos.prototypes.threadsafe import GEOSFunc
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## Binary & unary predicate functions ##
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def binary_predicate(func, *args):
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    return func
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## Unary Predicates ##
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geos_hasz = unary_predicate(lgeos.GEOSHasZ)
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geos_isempty = unary_predicate(lgeos.GEOSisEmpty)
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geos_isring = unary_predicate(lgeos.GEOSisRing)
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geos_issimple = unary_predicate(lgeos.GEOSisSimple)
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geos_isvalid = unary_predicate(lgeos.GEOSisValid)
 
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geos_hasz = unary_predicate(GEOSFunc('GEOSHasZ'))
 
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geos_isempty = unary_predicate(GEOSFunc('GEOSisEmpty'))
 
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geos_isring = unary_predicate(GEOSFunc('GEOSisRing'))
 
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geos_issimple = unary_predicate(GEOSFunc('GEOSisSimple'))
 
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geos_isvalid = unary_predicate(GEOSFunc('GEOSisValid'))
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## Binary Predicates ##
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geos_contains = binary_predicate(lgeos.GEOSContains)
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geos_crosses = binary_predicate(lgeos.GEOSCrosses)
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geos_disjoint = binary_predicate(lgeos.GEOSDisjoint)
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geos_equals = binary_predicate(lgeos.GEOSEquals)
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geos_equalsexact = binary_predicate(lgeos.GEOSEqualsExact, c_double)
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geos_intersects = binary_predicate(lgeos.GEOSIntersects)
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geos_overlaps = binary_predicate(lgeos.GEOSOverlaps)
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geos_relatepattern = binary_predicate(lgeos.GEOSRelatePattern, c_char_p)
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geos_touches = binary_predicate(lgeos.GEOSTouches)
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geos_within = binary_predicate(lgeos.GEOSWithin)
 
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geos_contains = binary_predicate(GEOSFunc('GEOSContains'))
 
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geos_crosses = binary_predicate(GEOSFunc('GEOSCrosses'))
 
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geos_disjoint = binary_predicate(GEOSFunc('GEOSDisjoint'))
 
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geos_equals = binary_predicate(GEOSFunc('GEOSEquals'))
 
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geos_equalsexact = binary_predicate(GEOSFunc('GEOSEqualsExact'), c_double)
 
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geos_intersects = binary_predicate(GEOSFunc('GEOSIntersects'))
 
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geos_overlaps = binary_predicate(GEOSFunc('GEOSOverlaps'))
 
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geos_relatepattern = binary_predicate(GEOSFunc('GEOSRelatePattern'), c_char_p)
 
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geos_touches = binary_predicate(GEOSFunc('GEOSTouches'))
 
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geos_within = binary_predicate(GEOSFunc('GEOSWithin'))