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/**********************************************************************
*
* PostGIS - Spatial Types for PostgreSQL
* http://postgis.net
*
* PostGIS is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* PostGIS is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with PostGIS. If not, see <http://www.gnu.org/licenses/>.
*
**********************************************************************
*
* Copyright 2011 Sandro Santilli <strk@kbt.io>
*
**********************************************************************/
/* Workaround for GEOS 2.2 compatibility: old geos_c.h does not contain
header guards to protect from multiple inclusion */
#ifndef GEOS_C_INCLUDED
#define GEOS_C_INCLUDED
#include "geos_c.h"
#endif
#include "liblwgeom.h"
#include "lwunionfind.h"
/*
** Public prototypes for GEOS utility functions.
*/
LWGEOM *GEOS2LWGEOM(const GEOSGeometry *geom, char want3d);
GEOSGeometry * LWGEOM2GEOS(const LWGEOM *g, int autofix);
GEOSGeometry * GBOX2GEOS(const GBOX *g);
GEOSGeometry * LWGEOM_GEOS_buildArea(const GEOSGeometry* geom_in);
GEOSGeometry * make_geos_point(double x, double y);
GEOSGeometry * make_geos_segment(double x1, double y1, double x2, double y2);
int cluster_intersecting(GEOSGeometry** geoms, uint32_t num_geoms, GEOSGeometry*** clusterGeoms, uint32_t* num_clusters);
int cluster_within_distance(LWGEOM** geoms, uint32_t num_geoms, double tolerance, LWGEOM*** clusterGeoms, uint32_t* num_clusters);
int union_dbscan(LWGEOM** geoms, uint32_t num_geoms, UNIONFIND* uf, double eps, uint32_t min_points, char** is_in_cluster_ret);
POINTARRAY *ptarray_from_GEOSCoordSeq(const GEOSCoordSequence *cs, char want3d);
extern char lwgeom_geos_errmsg[];
extern void lwgeom_geos_error(const char *fmt, ...);
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