58 lines
3.1 KiB
Cython
58 lines
3.1 KiB
Cython
"""Provides a wrapper for GEOS types and functions.
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Note: GEOS functions in Cython must be called using the get_geos_handle context
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manager.
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Examples
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--------
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with get_geos_handle() as geos_handle:
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SomeGEOSFunc(geos_handle, ...<other params>)
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"""
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cdef extern from "geos_c.h":
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# Types
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ctypedef void *GEOSContextHandle_t
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ctypedef struct GEOSGeometry
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ctypedef struct GEOSCoordSequence
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ctypedef void (*GEOSMessageHandler_r)(const char *message, void *userdata)
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# GEOS Context & Messaging
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GEOSContextHandle_t GEOS_init_r() nogil
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void GEOS_finish_r(GEOSContextHandle_t handle) nogil
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void GEOSContext_setErrorMessageHandler_r(GEOSContextHandle_t handle, GEOSMessageHandler_r ef, void* userData) nogil
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void GEOSContext_setNoticeMessageHandler_r(GEOSContextHandle_t handle, GEOSMessageHandler_r nf, void* userData) nogil
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# Geometry functions
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const GEOSGeometry* GEOSGetGeometryN_r(GEOSContextHandle_t handle, const GEOSGeometry* g, int n) nogil
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const GEOSGeometry* GEOSGetExteriorRing_r(GEOSContextHandle_t handle, const GEOSGeometry* g) nogil
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const GEOSGeometry* GEOSGetInteriorRingN_r(GEOSContextHandle_t handle, const GEOSGeometry* g, int n) nogil
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int GEOSGeomTypeId_r(GEOSContextHandle_t handle, GEOSGeometry* g) nogil
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# Geometry creation / destruction
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GEOSGeometry* GEOSGeom_clone_r(GEOSContextHandle_t handle, const GEOSGeometry* g) nogil
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GEOSGeometry* GEOSGeom_createPoint_r(GEOSContextHandle_t handle, GEOSCoordSequence* s) nogil
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GEOSGeometry* GEOSGeom_createLineString_r(GEOSContextHandle_t handle, GEOSCoordSequence* s) nogil
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GEOSGeometry* GEOSGeom_createLinearRing_r(GEOSContextHandle_t handle, GEOSCoordSequence* s) nogil
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GEOSGeometry* GEOSGeom_createEmptyPolygon_r(GEOSContextHandle_t handle) nogil
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GEOSGeometry* GEOSGeom_createPolygon_r(GEOSContextHandle_t handle, GEOSGeometry* shell, GEOSGeometry** holes, unsigned int nholes) nogil
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GEOSGeometry* GEOSGeom_createCollection_r(GEOSContextHandle_t handle, int type, GEOSGeometry** geoms, unsigned int ngeoms) nogil
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void GEOSGeom_destroy_r(GEOSContextHandle_t handle, GEOSGeometry* g) nogil
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# Coordinate sequences
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const GEOSCoordSequence* GEOSGeom_getCoordSeq_r(GEOSContextHandle_t handle, const GEOSGeometry* g)
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GEOSCoordSequence* GEOSCoordSeq_clone_r(GEOSContextHandle_t handle, const GEOSCoordSequence* s)
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GEOSCoordSequence* GEOSCoordSeq_create_r(GEOSContextHandle_t handle, unsigned int size, unsigned int dims) nogil
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void GEOSCoordSeq_destroy_r(GEOSContextHandle_t handle, GEOSCoordSequence* s) nogil
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int GEOSCoordSeq_setX_r(GEOSContextHandle_t handle, GEOSCoordSequence* s, unsigned int idx, double val) nogil
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int GEOSCoordSeq_setY_r(GEOSContextHandle_t handle, GEOSCoordSequence* s, unsigned int idx, double val) nogil
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int GEOSCoordSeq_setZ_r(GEOSContextHandle_t handle, GEOSCoordSequence* s, unsigned int idx, double val) nogil
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int GEOSCoordSeq_getSize_r(GEOSContextHandle_t handle, GEOSCoordSequence* s, unsigned int* size) nogil
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cdef class get_geos_handle:
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cdef GEOSContextHandle_t handle
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cdef char* last_error
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cdef char* last_warning
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cdef GEOSContextHandle_t __enter__(self)
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