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ctypes_declarations.py
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ctypes_declarations.py
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'''Prototyping of the GEOS C API
See header file: geos-x.y.z/capi/geos_c.h
'''
from ctypes import CFUNCTYPE, POINTER, c_void_p, c_char_p, \
c_size_t, c_byte, c_char, c_uint, c_int, c_double, py_object
# Derived pointer types
c_size_t_p = POINTER(c_size_t)
class allocated_c_char_p(c_char_p):
'''char pointer return type'''
pass
EXCEPTION_HANDLER_FUNCTYPE = CFUNCTYPE(None, c_char_p, c_void_p)
def prototype(lgeos, geos_version):
'''Protype functions in geos_c.h for different version of GEOS
Use the GEOS version, not the C API version.
'''
'''
Initialization, cleanup, version
'''
lgeos.initGEOS.restype = None
lgeos.initGEOS.argtypes = [EXCEPTION_HANDLER_FUNCTYPE, EXCEPTION_HANDLER_FUNCTYPE]
lgeos.finishGEOS.restype = None
lgeos.finishGEOS.argtypes = []
lgeos.GEOSversion.restype = c_char_p
lgeos.GEOSversion.argtypes = []
'''
NOTE - These functions are DEPRECATED. Please use the new Reader and
writer APIS!
'''
lgeos.GEOSGeomFromWKT.restype = c_void_p
lgeos.GEOSGeomFromWKT.argtypes = [c_char_p]
lgeos.GEOSGeomToWKT.restype = allocated_c_char_p
lgeos.GEOSGeomToWKT.argtypes = [c_void_p]
lgeos.GEOS_setWKBOutputDims.restype = c_int
lgeos.GEOS_setWKBOutputDims.argtypes = [c_int]
lgeos.GEOSGeomFromWKB_buf.restype = c_void_p
lgeos.GEOSGeomFromWKB_buf.argtypes = [c_void_p, c_size_t]
lgeos.GEOSGeomToWKB_buf.restype = allocated_c_char_p
lgeos.GEOSGeomToWKB_buf.argtypes = [c_void_p, c_size_t_p]
'''
Coordinate sequence
'''
lgeos.GEOSCoordSeq_create.restype = c_void_p
lgeos.GEOSCoordSeq_create.argtypes = [c_uint, c_uint]
lgeos.GEOSCoordSeq_clone.restype = c_void_p
lgeos.GEOSCoordSeq_clone.argtypes = [c_void_p]
lgeos.GEOSGeom_clone.restype = c_void_p
lgeos.GEOSGeom_clone.argtypes = [c_void_p]
lgeos.GEOSCoordSeq_destroy.restype = None
lgeos.GEOSCoordSeq_destroy.argtypes = [c_void_p]
lgeos.GEOSCoordSeq_setX.restype = c_int
lgeos.GEOSCoordSeq_setX.argtypes = [c_void_p, c_uint, c_double]
lgeos.GEOSCoordSeq_setY.restype = c_int
lgeos.GEOSCoordSeq_setY.argtypes = [c_void_p, c_uint, c_double]
lgeos.GEOSCoordSeq_setZ.restype = c_int
lgeos.GEOSCoordSeq_setZ.argtypes = [c_void_p, c_uint, c_double]
lgeos.GEOSCoordSeq_setOrdinate.restype = c_int
lgeos.GEOSCoordSeq_setOrdinate.argtypes = [c_void_p, c_uint, c_uint, c_double]
lgeos.GEOSCoordSeq_getX.restype = c_int
lgeos.GEOSCoordSeq_getX.argtypes = [c_void_p, c_uint, c_void_p]
lgeos.GEOSCoordSeq_getY.restype = c_int
lgeos.GEOSCoordSeq_getY.argtypes = [c_void_p, c_uint, c_void_p]
lgeos.GEOSCoordSeq_getZ.restype = c_int
lgeos.GEOSCoordSeq_getZ.argtypes = [c_void_p, c_uint, c_void_p]
lgeos.GEOSCoordSeq_getSize.restype = c_int
lgeos.GEOSCoordSeq_getSize.argtypes = [c_void_p, c_void_p]
lgeos.GEOSCoordSeq_getDimensions.restype = c_int
lgeos.GEOSCoordSeq_getDimensions.argtypes = [c_void_p, c_void_p]
'''
Linear refeferencing
'''
if geos_version >= (3, 2, 0):
lgeos.GEOSProject.restype = c_double
lgeos.GEOSProject.argtypes = [c_void_p, c_void_p]
lgeos.GEOSInterpolate.restype = c_void_p
lgeos.GEOSInterpolate.argtypes = [c_void_p, c_double]
lgeos.GEOSProjectNormalized.restype = c_double
lgeos.GEOSProjectNormalized.argtypes = [c_void_p, c_void_p]
lgeos.GEOSInterpolateNormalized.restype = c_void_p
lgeos.GEOSInterpolateNormalized.argtypes = [c_void_p, c_double]
'''
Buffer related
'''
lgeos.GEOSBuffer.restype = c_void_p
lgeos.GEOSBuffer.argtypes = [c_void_p, c_double, c_int]
if geos_version >= (3, 2, 0):
lgeos.GEOSBufferWithStyle.restype = c_void_p
lgeos.GEOSBufferWithStyle.argtypes = [c_void_p, c_double, c_int, c_int, c_int, c_double]
if geos_version >= (3, 3, 0):
lgeos.GEOSOffsetCurve.restype = c_void_p
lgeos.GEOSOffsetCurve.argtypes = [c_void_p, c_double, c_int, c_int, c_double]
else:
# deprecated in GEOS 3.3.0 in favour of GEOSOffsetCurve
lgeos.GEOSSingleSidedBuffer.restype = c_void_p
lgeos.GEOSSingleSidedBuffer.argtypes = [c_void_p, c_double, c_int, c_int, c_double, c_int]
'''
Geometry constructors
'''
lgeos.GEOSGeom_createPoint.restype = c_void_p
lgeos.GEOSGeom_createPoint.argtypes = [c_void_p]
lgeos.GEOSGeom_createLinearRing.restype = c_void_p
lgeos.GEOSGeom_createLinearRing.argtypes = [c_void_p]
lgeos.GEOSGeom_createLineString.restype = c_void_p
lgeos.GEOSGeom_createLineString.argtypes = [c_void_p]
lgeos.GEOSGeom_createPolygon.restype = c_void_p
lgeos.GEOSGeom_createPolygon.argtypes = [c_void_p, c_void_p, c_uint]
lgeos.GEOSGeom_createCollection.restype = c_void_p
lgeos.GEOSGeom_createCollection.argtypes = [c_int, c_void_p, c_uint]
lgeos.GEOSGeom_clone.restype = c_void_p
lgeos.GEOSGeom_clone.argtypes = [c_void_p]
'''
Memory management
'''
lgeos.GEOSGeom_destroy.restype = None
lgeos.GEOSGeom_destroy.argtypes = [c_void_p]
'''
Topology operations
Return NULL on exception
'''
lgeos.GEOSEnvelope.restype = c_void_p
lgeos.GEOSEnvelope.argtypes = [c_void_p]
lgeos.GEOSIntersection.restype = c_void_p
lgeos.GEOSIntersection.argtypes = [c_void_p, c_void_p]
lgeos.GEOSConvexHull.restype = c_void_p
lgeos.GEOSConvexHull.argtypes = [c_void_p]
lgeos.GEOSDifference.restype = c_void_p
lgeos.GEOSDifference.argtypes = [c_void_p, c_void_p]
lgeos.GEOSSymDifference.restype = c_void_p
lgeos.GEOSSymDifference.argtypes = [c_void_p, c_void_p]
lgeos.GEOSBoundary.restype = c_void_p
lgeos.GEOSBoundary.argtypes = [c_void_p]
lgeos.GEOSUnion.restype = c_void_p
lgeos.GEOSUnion.argtypes = [c_void_p, c_void_p]
if geos_version >= (3, 3, 0):
lgeos.GEOSUnaryUnion.restype = c_void_p
lgeos.GEOSUnaryUnion.argtypes = [c_void_p]
if geos_version >= (3, 1, 0):
'''deprecated in 3.3.0: use GEOSUnaryUnion instead'''
lgeos.GEOSUnionCascaded.restype = c_void_p
lgeos.GEOSUnionCascaded.argtypes = [c_void_p]
lgeos.GEOSPointOnSurface.restype = c_void_p
lgeos.GEOSPointOnSurface.argtypes = [c_void_p]
lgeos.GEOSGetCentroid.restype = c_void_p
lgeos.GEOSGetCentroid.argtypes = [c_void_p]
lgeos.GEOSPolygonize.restype = c_void_p
lgeos.GEOSPolygonize.argtypes = [c_void_p, c_uint]
if geos_version >= (3, 3, 0):
lgeos.GEOSPolygonize_full.restype = c_void_p
lgeos.GEOSPolygonize_full.argtypes = [c_void_p, c_void_p, c_void_p, c_void_p]
if geos_version >= (3, 4, 0):
lgeos.GEOSDelaunayTriangulation.restype = c_void_p
lgeos.GEOSDelaunayTriangulation.argtypes = [c_void_p, c_double, c_int]
lgeos.GEOSLineMerge.restype = c_void_p
lgeos.GEOSLineMerge.argtypes = [c_void_p]
lgeos.GEOSSimplify.restype = c_void_p
lgeos.GEOSSimplify.argtypes = [c_void_p, c_double]
lgeos.GEOSTopologyPreserveSimplify.restype = c_void_p
lgeos.GEOSTopologyPreserveSimplify.argtypes = [c_void_p, c_double]
'''
Binary predicates
Return 2 on exception, 1 on true, 0 on false
'''
lgeos.GEOSDisjoint.restype = c_byte
lgeos.GEOSDisjoint.argtypes = [c_void_p, c_void_p]
lgeos.GEOSTouches.restype = c_byte
lgeos.GEOSTouches.argtypes = [c_void_p, c_void_p]
lgeos.GEOSIntersects.restype = c_byte
lgeos.GEOSIntersects.argtypes = [c_void_p, c_void_p]
lgeos.GEOSCrosses.restype = c_byte
lgeos.GEOSCrosses.argtypes = [c_void_p, c_void_p]
lgeos.GEOSWithin.restype = c_byte
lgeos.GEOSWithin.argtypes = [c_void_p, c_void_p]
lgeos.GEOSContains.restype = c_byte
lgeos.GEOSContains.argtypes = [c_void_p, c_void_p]
lgeos.GEOSOverlaps.restype = c_byte
lgeos.GEOSOverlaps.argtypes = [c_void_p, c_void_p]
lgeos.GEOSCovers.restype = c_byte
lgeos.GEOSCovers.argtypes = [c_void_p, c_void_p]
lgeos.GEOSEquals.restype = c_byte
lgeos.GEOSEquals.argtypes = [c_void_p, c_void_p]
lgeos.GEOSEqualsExact.restype = c_byte
lgeos.GEOSEqualsExact.argtypes = [c_void_p, c_void_p, c_double]
'''
Unary predicate
Return 2 on exception, 1 on true, 0 on false
'''
lgeos.GEOSisEmpty.restype = c_byte
lgeos.GEOSisEmpty.argtypes = [c_void_p]
lgeos.GEOSisValid.restype = c_byte
lgeos.GEOSisValid.argtypes = [c_void_p]
if geos_version >= (3, 1, 0):
lgeos.GEOSisValidReason.restype = allocated_c_char_p
lgeos.GEOSisValidReason.argtypes = [c_void_p]
lgeos.GEOSisSimple.restype = c_byte
lgeos.GEOSisSimple.argtypes = [c_void_p]
lgeos.GEOSisRing.restype = c_byte
lgeos.GEOSisRing.argtypes = [c_void_p]
if geos_version >= (3, 3, 0):
lgeos.GEOSisClosed.restype = c_byte
lgeos.GEOSisClosed.argtypes = [c_void_p]
lgeos.GEOSHasZ.restype = c_byte
lgeos.GEOSHasZ.argtypes = [c_void_p]
'''
Dimensionally Extended 9 Intersection Model related
'''
lgeos.GEOSRelate.restype = allocated_c_char_p
lgeos.GEOSRelate.argtypes = [c_void_p, c_void_p]
lgeos.GEOSRelatePattern.restype = c_byte
lgeos.GEOSRelatePattern.argtypes = [c_void_p, c_void_p, c_char_p]
if geos_version >= (3, 3, 0):
lgeos.GEOSRelatePatternMatch.restype = c_byte
lgeos.GEOSRelatePatternMatch.argtypes = [c_char_p, c_char_p]
'''
Prepared Geometry Binary predicates
Return 2 on exception, 1 on true, 0 on false
'''
if geos_version >= (3, 1, 0):
lgeos.GEOSPrepare.restype = c_void_p
lgeos.GEOSPrepare.argtypes = [c_void_p]
lgeos.GEOSPreparedGeom_destroy.restype = None
lgeos.GEOSPreparedGeom_destroy.argtypes = [c_void_p]
lgeos.GEOSPreparedDisjoint.restype = c_byte
lgeos.GEOSPreparedDisjoint.argtypes = [c_void_p, c_void_p]
lgeos.GEOSPreparedTouches.restype = c_byte
lgeos.GEOSPreparedTouches.argtypes = [c_void_p, c_void_p]
lgeos.GEOSPreparedIntersects.restype = c_byte
lgeos.GEOSPreparedIntersects.argtypes = [c_void_p, c_void_p]
lgeos.GEOSPreparedCrosses.restype = c_byte
lgeos.GEOSPreparedCrosses.argtypes = [c_void_p, c_void_p]
lgeos.GEOSPreparedWithin.restype = c_byte
lgeos.GEOSPreparedWithin.argtypes = [c_void_p, c_void_p]
lgeos.GEOSPreparedContains.restype = c_byte
lgeos.GEOSPreparedContains.argtypes = [c_void_p, c_void_p]
lgeos.GEOSPreparedContainsProperly.restype = c_byte
lgeos.GEOSPreparedContainsProperly.argtypes = [c_void_p, c_void_p]
lgeos.GEOSPreparedOverlaps.restype = c_byte
lgeos.GEOSPreparedOverlaps.argtypes = [c_void_p, c_void_p]
lgeos.GEOSPreparedCovers.restype = c_byte
lgeos.GEOSPreparedCovers.argtypes = [c_void_p, c_void_p]
'''
Geometry info
'''
lgeos.GEOSGeomType.restype = c_char_p
lgeos.GEOSGeomType.argtypes = [c_void_p]
lgeos.GEOSGeomTypeId.restype = c_int
lgeos.GEOSGeomTypeId.argtypes = [c_void_p]
lgeos.GEOSGetSRID.restype = c_int
lgeos.GEOSGetSRID.argtypes = [c_void_p]
lgeos.GEOSSetSRID.restype = None
lgeos.GEOSSetSRID.argtypes = [c_void_p, c_int]
lgeos.GEOSGetNumGeometries.restype = c_int
lgeos.GEOSGetNumGeometries.argtypes = [c_void_p]
lgeos.GEOSGetGeometryN.restype = c_void_p
lgeos.GEOSGetGeometryN.argtypes = [c_void_p, c_int]
lgeos.GEOSGetNumInteriorRings.restype = c_int
lgeos.GEOSGetNumInteriorRings.argtypes = [c_void_p]
lgeos.GEOSGetInteriorRingN.restype = c_void_p
lgeos.GEOSGetInteriorRingN.argtypes = [c_void_p, c_int]
lgeos.GEOSGetExteriorRing.restype = c_void_p
lgeos.GEOSGetExteriorRing.argtypes = [c_void_p]
lgeos.GEOSGetNumCoordinates.restype = c_int
lgeos.GEOSGetNumCoordinates.argtypes = [c_void_p]
lgeos.GEOSGeom_getCoordSeq.restype = c_void_p
lgeos.GEOSGeom_getCoordSeq.argtypes = [c_void_p]
lgeos.GEOSGeom_getDimensions.restype = c_int
lgeos.GEOSGeom_getDimensions.argtypes = [c_void_p]
'''
Misc functions
'''
lgeos.GEOSArea.restype = c_double
lgeos.GEOSArea.argtypes = [c_void_p, c_void_p]
lgeos.GEOSLength.restype = c_int
lgeos.GEOSLength.argtypes = [c_void_p, c_void_p]
lgeos.GEOSDistance.restype = c_int
lgeos.GEOSDistance.argtypes = [c_void_p, c_void_p, c_void_p]
'''
Reader and Writer APIs
'''
'''WKT Reader'''
lgeos.GEOSWKTReader_create.restype = c_void_p
lgeos.GEOSWKTReader_create.argtypes = []
lgeos.GEOSWKTReader_destroy.restype = None
lgeos.GEOSWKTReader_destroy.argtypes = [c_void_p]
lgeos.GEOSWKTReader_read.restype = c_void_p
lgeos.GEOSWKTReader_read.argtypes = [c_void_p, c_char_p]
'''WKT Writer'''
lgeos.GEOSWKTWriter_create.restype = c_void_p
lgeos.GEOSWKTWriter_create.argtypes = []
lgeos.GEOSWKTWriter_destroy.restype = None
lgeos.GEOSWKTWriter_destroy.argtypes = [c_void_p]
lgeos.GEOSWKTWriter_write.restype = allocated_c_char_p
lgeos.GEOSWKTWriter_write.argtypes = [c_void_p, c_void_p]
if geos_version >= (3, 3, 0):
lgeos.GEOSWKTWriter_setTrim.restype = None
lgeos.GEOSWKTWriter_setTrim.argtypes = [c_void_p, c_int]
lgeos.GEOSWKTWriter_setRoundingPrecision.restype = None
lgeos.GEOSWKTWriter_setRoundingPrecision.argtypes = [c_void_p, c_int]
lgeos.GEOSWKTWriter_setOutputDimension.restype = None
lgeos.GEOSWKTWriter_setOutputDimension.argtypes = [c_void_p, c_int]
lgeos.GEOSWKTWriter_getOutputDimension.restype = c_int
lgeos.GEOSWKTWriter_getOutputDimension.argtypes = [c_void_p]
lgeos.GEOSWKTWriter_setOld3D.restype = None
lgeos.GEOSWKTWriter_setOld3D.argtypes = [c_void_p, c_int]
'''WKB Reader'''
lgeos.GEOSWKBReader_create.restype = c_void_p
lgeos.GEOSWKBReader_create.argtypes = []
lgeos.GEOSWKBReader_destroy.restype = None
lgeos.GEOSWKBReader_destroy.argtypes = [c_void_p]
lgeos.GEOSWKBReader_read.restype = c_void_p
lgeos.GEOSWKBReader_read.argtypes = [c_void_p, c_char_p, c_size_t]
lgeos.GEOSWKBReader_readHEX.restype = c_void_p
lgeos.GEOSWKBReader_readHEX.argtypes = [c_void_p, c_char_p, c_size_t]
'''WKB Writer'''
lgeos.GEOSWKBWriter_create.restype = c_void_p
lgeos.GEOSWKBWriter_create.argtypes = []
lgeos.GEOSWKBWriter_destroy.restype = None
lgeos.GEOSWKBWriter_destroy.argtypes = [c_void_p]
lgeos.GEOSWKBWriter_write.restype = allocated_c_char_p
lgeos.GEOSWKBWriter_write.argtypes = [c_void_p, c_void_p, c_size_t_p]
lgeos.GEOSWKBWriter_writeHEX.restype = allocated_c_char_p
lgeos.GEOSWKBWriter_writeHEX.argtypes = [c_void_p, c_void_p, c_size_t_p]
lgeos.GEOSWKBWriter_getOutputDimension.restype = c_int
lgeos.GEOSWKBWriter_getOutputDimension.argtypes = [c_void_p]
lgeos.GEOSWKBWriter_setOutputDimension.restype = None
lgeos.GEOSWKBWriter_setOutputDimension.argtypes = [c_void_p, c_int]
lgeos.GEOSWKBWriter_getByteOrder.restype = c_int
lgeos.GEOSWKBWriter_getByteOrder.argtypes = [c_void_p]
lgeos.GEOSWKBWriter_setByteOrder.restype = None
lgeos.GEOSWKBWriter_setByteOrder.argtypes = [c_void_p, c_int]
lgeos.GEOSWKBWriter_getIncludeSRID.restype = c_int
lgeos.GEOSWKBWriter_getIncludeSRID.argtypes = [c_void_p]
lgeos.GEOSWKBWriter_setIncludeSRID.restype = None
lgeos.GEOSWKBWriter_setIncludeSRID.argtypes = [c_void_p, c_int]
if geos_version >= (3, 1, 1):
'''
Free buffers returned by stuff like GEOSWKBWriter_write(),
GEOSWKBWriter_writeHEX() and GEOSWKTWriter_write()
'''
lgeos.GEOSFree.restype = None
lgeos.GEOSFree.argtypes = [c_void_p]
if geos_version >= (3, 3, 0):
lgeos.GEOSSnap.restype = c_void_p
lgeos.GEOSSnap.argtypes = [c_void_p, c_void_p, c_double]
if geos_version >= (3, 4, 0):
lgeos.GEOSNearestPoints.restype = c_void_p
lgeos.GEOSNearestPoints.argtypes = [c_void_p, c_void_p]
if geos_version >= (3, 4, 2):
lgeos.GEOSQueryCallback = CFUNCTYPE(None, c_void_p, c_void_p)
lgeos.GEOSSTRtree_query.argtypes = [c_void_p, c_void_p, lgeos.GEOSQueryCallback, py_object]
lgeos.GEOSSTRtree_query.restype = None
lgeos.GEOSSTRtree_create.argtypes = [c_int]
lgeos.GEOSSTRtree_create.restype = c_void_p
lgeos.GEOSSTRtree_insert.argtypes = [c_void_p, c_void_p, py_object]
lgeos.GEOSSTRtree_insert.restype = None
lgeos.GEOSSTRtree_remove.argtypes = [c_void_p, c_void_p, py_object]
lgeos.GEOSSTRtree_remove.restype = None
lgeos.GEOSSTRtree_destroy.argtypes = [c_void_p]
lgeos.GEOSSTRtree_destroy.restype = None