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