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"""
This module houses the GEOS ctypes prototype functions for the
unary and binary predicate operations on geometries.
"""
from ctypes import c_byte, c_char_p, c_double
from django.contrib.gis.geos.libgeos import GEOM_PTR, GEOSFuncFactory
from django.contrib.gis.geos.prototypes.errcheck import check_predicate
# ## Binary & unary predicate factories ##
class UnaryPredicate(GEOSFuncFactory):
"For GEOS unary predicate functions."
argtypes = [GEOM_PTR]
restype = c_byte
errcheck = staticmethod(check_predicate)
class BinaryPredicate(UnaryPredicate):
"For GEOS binary predicate functions."
argtypes = [GEOM_PTR, GEOM_PTR]
# ## Unary Predicates ##
geos_hasz = UnaryPredicate("GEOSHasZ")
geos_hasm = UnaryPredicate("GEOSHasM")
geos_isclosed = UnaryPredicate("GEOSisClosed")
geos_isempty = UnaryPredicate("GEOSisEmpty")
geos_isring = UnaryPredicate("GEOSisRing")
geos_issimple = UnaryPredicate("GEOSisSimple")
geos_isvalid = UnaryPredicate("GEOSisValid")
# ## Binary Predicates ##
geos_contains = BinaryPredicate("GEOSContains")
geos_covers = BinaryPredicate("GEOSCovers")
geos_crosses = BinaryPredicate("GEOSCrosses")
geos_disjoint = BinaryPredicate("GEOSDisjoint")
geos_equals = BinaryPredicate("GEOSEquals")
geos_equalsexact = BinaryPredicate(
"GEOSEqualsExact", argtypes=[GEOM_PTR, GEOM_PTR, c_double]
)
geos_equalsidentical = BinaryPredicate("GEOSEqualsIdentical")
geos_intersects = BinaryPredicate("GEOSIntersects")
geos_overlaps = BinaryPredicate("GEOSOverlaps")
geos_relatepattern = BinaryPredicate(
"GEOSRelatePattern", argtypes=[GEOM_PTR, GEOM_PTR, c_char_p]
)
geos_touches = BinaryPredicate("GEOSTouches")
geos_within = BinaryPredicate("GEOSWithin")
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