mirror of
https://git.osgeo.org/gitea/postgis/postgis
synced 2024-10-26 18:15:39 +00:00
Added null implementations of new GEOS-returning-geometry functions (ie.
buffer). git-svn-id: http://svn.osgeo.org/postgis/trunk@285 b70326c6-7e19-0410-871a-916f4a2858ee
This commit is contained in:
David Blasby
parent
3e8548c269
commit
305bf30580
191
postgis_geos.c
191
postgis_geos.c
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@ -7,9 +7,13 @@
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*
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* This is free software; you can redistribute and/or modify it under
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* the terms of hte GNU General Public Licence. See the COPYING file.
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*
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*
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**********************************************************************
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* $Log$
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* Revision 1.6 2003/08/05 18:27:21 dblasby
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* Added null implementations of new GEOS-returning-geometry functions (ie.
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* buffer).
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*
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* Revision 1.5 2003/08/01 23:58:08 dblasby
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* added the functionality to convert GEOS->PostGIS geometries. Added those geos
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* functions to postgis.
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@ -22,7 +26,7 @@
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//--------------------------------------------------------------------------
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//
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//
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#ifdef USE_GEOS
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#include "postgres.h"
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@ -117,7 +121,7 @@ Datum within(PG_FUNCTION_ARGS);
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Datum contains(PG_FUNCTION_ARGS);
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Datum overlaps(PG_FUNCTION_ARGS);
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Datum isvalid(PG_FUNCTION_ARGS);
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Datum buffer(PG_FUNCTION_ARGS);
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Datum intersection(PG_FUNCTION_ARGS);
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@ -142,7 +146,7 @@ LINE3D *LineFromGeometry(Geometry *g, int *size);
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//select geomunion('POLYGON((0 0, 10 0, 10 10, 0 10, 0 0))','POLYGON((5 5, 15 5, 15 7, 5 7, 5 5))');
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PG_FUNCTION_INFO_V1(geomunion);
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Datum geomunion(PG_FUNCTION_ARGS)
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Datum geomunion(PG_FUNCTION_ARGS)
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{
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GEOMETRY *geom1 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
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GEOMETRY *geom2 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(1));
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@ -165,13 +169,13 @@ Datum geomunion(PG_FUNCTION_ARGS)
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PG_RETURN_NULL(); //never get here
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}
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empty = GEOSisEmpty(g3);
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if (empty ==2)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS union() threw an error (couldnt test empty on result)!");
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PG_RETURN_NULL(); //never get here
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}
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@ -187,16 +191,16 @@ Datum geomunion(PG_FUNCTION_ARGS)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS union() threw an error (result postgis geometry formation)!");
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PG_RETURN_NULL(); //never get here
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}
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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PG_RETURN_POINTER(result);
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}
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@ -204,7 +208,7 @@ Datum geomunion(PG_FUNCTION_ARGS)
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// select symdifference('POLYGON((0 0, 10 0, 10 10, 0 10, 0 0))','POLYGON((5 5, 15 5, 15 7, 5 7, 5 5))');
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PG_FUNCTION_INFO_V1(symdifference);
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Datum symdifference(PG_FUNCTION_ARGS)
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Datum symdifference(PG_FUNCTION_ARGS)
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{
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GEOMETRY *geom1 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
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GEOMETRY *geom2 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(1));
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@ -227,13 +231,13 @@ Datum symdifference(PG_FUNCTION_ARGS)
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PG_RETURN_NULL(); //never get here
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}
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empty = GEOSisEmpty(g3);
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if (empty ==2)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS symdifference() threw an error (couldnt test empty on result)!");
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PG_RETURN_NULL(); //never get here
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}
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@ -249,23 +253,23 @@ Datum symdifference(PG_FUNCTION_ARGS)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS symdifference() threw an error (result postgis geometry formation)!");
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PG_RETURN_NULL(); //never get here
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}
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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PG_RETURN_POINTER(result);
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}
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PG_FUNCTION_INFO_V1(boundary);
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Datum boundary(PG_FUNCTION_ARGS)
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Datum boundary(PG_FUNCTION_ARGS)
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{
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GEOMETRY *geom1 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
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@ -285,12 +289,12 @@ Datum boundary(PG_FUNCTION_ARGS)
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PG_RETURN_NULL(); //never get here
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}
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empty = GEOSisEmpty(g3);
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if (empty ==2)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS bounary() threw an error (couldnt test empty on result)!");
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PG_RETURN_NULL(); //never get here
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}
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@ -306,21 +310,21 @@ Datum boundary(PG_FUNCTION_ARGS)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS bounary() threw an error (result postgis geometry formation)!");
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PG_RETURN_NULL(); //never get here
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}
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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PG_RETURN_POINTER(result);
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}
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PG_FUNCTION_INFO_V1(convexhull);
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Datum convexhull(PG_FUNCTION_ARGS)
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Datum convexhull(PG_FUNCTION_ARGS)
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{
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GEOMETRY *geom1 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
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char empty;
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@ -344,7 +348,7 @@ Datum convexhull(PG_FUNCTION_ARGS)
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if (empty ==2)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS convexhull() threw an error (couldnt test empty on result)!");
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PG_RETURN_NULL(); //never get here
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}
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@ -359,19 +363,19 @@ Datum convexhull(PG_FUNCTION_ARGS)
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if (result == NULL)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS convexhull() threw an error (result postgis geometry formation)!");
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PG_RETURN_NULL(); //never get here
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}
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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PG_RETURN_POINTER(result);
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}
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PG_FUNCTION_INFO_V1(buffer);
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Datum buffer(PG_FUNCTION_ARGS)
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Datum buffer(PG_FUNCTION_ARGS)
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{
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GEOMETRY *geom1 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
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double size = PG_GETARG_FLOAT8(1);
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@ -396,7 +400,7 @@ Datum buffer(PG_FUNCTION_ARGS)
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if (empty ==2)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS buffer() threw an error (couldnt test empty on result)!");
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PG_RETURN_NULL(); //never get here
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}
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@ -411,12 +415,12 @@ Datum buffer(PG_FUNCTION_ARGS)
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if (result == NULL)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS buffer() threw an error (result postgis geometry formation)!");
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PG_RETURN_NULL(); //never get here
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}
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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PG_RETURN_POINTER(result);
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@ -437,7 +441,7 @@ Datum buffer(PG_FUNCTION_ARGS)
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//select intersection('POLYGON((0 0, 10 0, 10 10, 0 10, 0 0))','MULTILINESTRING((5 5, 10 10),(1 1, 2 2) )');
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//select intersection('POLYGON((0 0, 10 0, 10 10, 0 10, 0 0))','MULTIPOLYGON(((5 5, 15 5, 15 7, 5 7, 5 5)),((1 1,1 2,2 2,1 2, 1 1)))');
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PG_FUNCTION_INFO_V1(intersection);
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Datum intersection(PG_FUNCTION_ARGS)
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Datum intersection(PG_FUNCTION_ARGS)
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{
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GEOMETRY *geom1 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
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GEOMETRY *geom2 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(1));
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@ -460,13 +464,13 @@ Datum intersection(PG_FUNCTION_ARGS)
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PG_RETURN_NULL(); //never get here
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}
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empty = GEOSisEmpty(g3);
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if (empty ==2)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS Intersection() threw an error (couldnt test empty on result)!");
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PG_RETURN_NULL(); //never get here
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}
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@ -482,23 +486,23 @@ Datum intersection(PG_FUNCTION_ARGS)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS Intersection() threw an error (result postgis geometry formation)!");
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PG_RETURN_NULL(); //never get here
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}
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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PG_RETURN_POINTER(result);
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}
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//select difference('POLYGON((0 0, 10 0, 10 10, 0 10, 0 0))','POLYGON((5 5, 15 5, 15 7, 5 7, 5 5))');
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PG_FUNCTION_INFO_V1(difference);
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Datum difference(PG_FUNCTION_ARGS)
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Datum difference(PG_FUNCTION_ARGS)
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{
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GEOMETRY *geom1 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
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GEOMETRY *geom2 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(1));
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@ -521,13 +525,13 @@ Datum difference(PG_FUNCTION_ARGS)
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PG_RETURN_NULL(); //never get here
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}
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empty = GEOSisEmpty(g3);
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if (empty ==2)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS difference() threw an error (couldnt test empty on result)!");
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PG_RETURN_NULL(); //never get here
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}
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@ -543,16 +547,16 @@ Datum difference(PG_FUNCTION_ARGS)
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{
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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elog(ERROR,"GEOS difference() threw an error (result postgis geometry formation)!");
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PG_RETURN_NULL(); //never get here
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}
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GEOSdeleteGeometry(g1);
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GEOSdeleteGeometry(g2);
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GEOSdeleteGeometry(g3);
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GEOSdeleteGeometry(g3);
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PG_RETURN_POINTER(result);
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}
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@ -562,7 +566,7 @@ Datum difference(PG_FUNCTION_ARGS)
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//----------------------------------------------
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void errorIfGeometryCollection(GEOMETRY *g1, GEOMETRY *g2)
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{
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if ( (g1->type == COLLECTIONTYPE) || (g2->type == COLLECTIONTYPE) )
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@ -570,7 +574,7 @@ void errorIfGeometryCollection(GEOMETRY *g1, GEOMETRY *g2)
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}
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PG_FUNCTION_INFO_V1(isvalid);
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Datum isvalid(PG_FUNCTION_ARGS)
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Datum isvalid(PG_FUNCTION_ARGS)
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{
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GEOMETRY *geom1 = (GEOMETRY *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
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bool result;
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@ -940,10 +944,10 @@ POLYGON3D *PolyFromGeometry(Geometry *g, int *size)
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POLYGON3D *poly;
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int npoints;
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npoints = GEOSGetNumCoordinate(g);
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pts = GEOSGetCoordinates(g);
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if (npoints <3)
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if (npoints <3)
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{
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GEOSdeleteChar( (char*) pts);
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return NULL;
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@ -957,9 +961,9 @@ POLYGON3D *PolyFromGeometry(Geometry *g, int *size)
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pts_per_ring[t+1] = GEOSGetNumCoordinate(GEOSGetInteriorRingN(g,t));
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}
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poly = make_polygon( ninteriorrings+1, pts_per_ring,
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poly = make_polygon( ninteriorrings+1, pts_per_ring,
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pts, GEOSGetNumCoordinate(g), size);
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@ -978,7 +982,7 @@ LINE3D *LineFromGeometry(Geometry *g,int *size)
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LINE3D *line;
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int npoints = GEOSGetNumCoordinate(g);
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if (npoints <2)
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if (npoints <2)
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{
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GEOSdeleteChar( (char*) pts);
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return NULL;
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@ -1005,7 +1009,7 @@ GEOMETRY *GEOS2POSTGIS(Geometry *g,char want3d)
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(char *) pt,
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POINTTYPE, want3d, GEOSGetSRID(g),1.0, 0.0, 0.0
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);
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GEOSdeleteChar( (char*) pt);
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return result;
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@ -1018,7 +1022,7 @@ GEOMETRY *GEOS2POSTGIS(Geometry *g,char want3d)
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line = LineFromGeometry(g,&size);
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if (line == NULL)
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return NULL;
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result = make_oneobj_geometry(size,
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(char *) line,
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@ -1032,7 +1036,7 @@ GEOMETRY *GEOS2POSTGIS(Geometry *g,char want3d)
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int size;
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POLYGON3D *poly;
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poly = PolyFromGeometry(g,&size);
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if (poly == NULL)
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@ -1053,7 +1057,7 @@ GEOMETRY *GEOS2POSTGIS(Geometry *g,char want3d)
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g_new = NULL;
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ngeoms = GEOSGetNumGeometries(g);
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if (ngeoms ==0)
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if (ngeoms ==0)
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{
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return NULL;
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}
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@ -1082,7 +1086,7 @@ GEOMETRY *GEOS2POSTGIS(Geometry *g,char want3d)
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ngeoms = GEOSGetNumGeometries(g);
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if (ngeoms ==0)
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if (ngeoms ==0)
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{
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return NULL;
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}
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@ -1115,7 +1119,7 @@ GEOMETRY *GEOS2POSTGIS(Geometry *g,char want3d)
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ngeoms = GEOSGetNumGeometries(g);
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if (ngeoms ==0)
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if (ngeoms ==0)
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{
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return NULL;
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}
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@ -1146,7 +1150,7 @@ GEOMETRY *GEOS2POSTGIS(Geometry *g,char want3d)
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GEOMETRY *geom, *g2, *r;
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int t;
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if (ngeoms ==0)
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if (ngeoms ==0)
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{
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return NULL;
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}
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@ -1159,8 +1163,8 @@ GEOMETRY *GEOS2POSTGIS(Geometry *g,char want3d)
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{
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g2 = GEOS2POSTGIS(GEOSGetGeometryN(g,t) , want3d);
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r = geom;
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geom = (GEOMETRY *)
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DatumGetPointer(
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geom = (GEOMETRY *)
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DatumGetPointer(
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DirectFunctionCall2(collector,
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PointerGetDatum(geom),PointerGetDatum(g2)
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)
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@ -1195,7 +1199,7 @@ Geometry *POSTGIS2GEOS(GEOMETRY *g)
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switch(g->type)
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{
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case POINTTYPE:
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case POINTTYPE:
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pt = (POINT3D*) ((char *) g +offsets1[0]) ;
|
||||
result = PostGIS2GEOS_point(pt,g->SRID,g->is3d);
|
||||
if (result == NULL)
|
||||
|
|
@ -1204,7 +1208,7 @@ Geometry *POSTGIS2GEOS(GEOMETRY *g)
|
|||
}
|
||||
return result;
|
||||
break;
|
||||
case LINETYPE:
|
||||
case LINETYPE:
|
||||
line = (LINE3D*) ((char *) g +offsets1[0]) ;
|
||||
result = PostGIS2GEOS_linestring(line,g->SRID,g->is3d);
|
||||
if (result == NULL)
|
||||
|
|
@ -1213,7 +1217,7 @@ Geometry *POSTGIS2GEOS(GEOMETRY *g)
|
|||
}
|
||||
return result;
|
||||
break;
|
||||
case POLYGONTYPE:
|
||||
case POLYGONTYPE:
|
||||
poly = (POLYGON3D*) ((char *) g +offsets1[0]) ;
|
||||
result = PostGIS2GEOS_polygon(poly,g->SRID,g->is3d);
|
||||
if (result == NULL)
|
||||
|
|
@ -1322,7 +1326,7 @@ Geometry *POSTGIS2GEOS(GEOMETRY *g)
|
|||
{
|
||||
elog(ERROR,"Couldnt convert the postgis geometry to GEOS!");
|
||||
}
|
||||
return geos;
|
||||
return geos;
|
||||
break;
|
||||
|
||||
}
|
||||
|
|
@ -1361,6 +1365,61 @@ Datum contains(PG_FUNCTION_ARGS);
|
|||
Datum overlaps(PG_FUNCTION_ARGS);
|
||||
Datum isvalid(PG_FUNCTION_ARGS);
|
||||
|
||||
|
||||
Datum buffer(PG_FUNCTION_ARGS);
|
||||
Datum intersection(PG_FUNCTION_ARGS);
|
||||
Datum convexhull(PG_FUNCTION_ARGS);
|
||||
Datum difference(PG_FUNCTION_ARGS);
|
||||
Datum boundary(PG_FUNCTION_ARGS);
|
||||
Datum symdifference(PG_FUNCTION_ARGS);
|
||||
Datum geomunion(PG_FUNCTION_ARGS);
|
||||
|
||||
PG_FUNCTION_INFO_V1(intersection);
|
||||
Datum intersection(PG_FUNCTION_ARGS)
|
||||
{
|
||||
elog(ERROR,"intersection:: operation not implemented - compile PostGIS with GEOS support");
|
||||
PG_RETURN_NULL(); // never get here
|
||||
}
|
||||
PG_FUNCTION_INFO_V1(convexhull);
|
||||
Datum convexhull(PG_FUNCTION_ARGS)
|
||||
{
|
||||
elog(ERROR,"convexhull:: operation not implemented - compile PostGIS with GEOS support");
|
||||
PG_RETURN_NULL(); // never get here
|
||||
}
|
||||
PG_FUNCTION_INFO_V1(difference);
|
||||
Datum difference(PG_FUNCTION_ARGS)
|
||||
{
|
||||
elog(ERROR,"difference:: operation not implemented - compile PostGIS with GEOS support");
|
||||
PG_RETURN_NULL(); // never get here
|
||||
}
|
||||
PG_FUNCTION_INFO_V1(boundary);
|
||||
Datum boundary(PG_FUNCTION_ARGS)
|
||||
{
|
||||
elog(ERROR,"boundary:: operation not implemented - compile PostGIS with GEOS support");
|
||||
PG_RETURN_NULL(); // never get here
|
||||
}
|
||||
PG_FUNCTION_INFO_V1(symdifference);
|
||||
Datum symdifference(PG_FUNCTION_ARGS)
|
||||
{
|
||||
elog(ERROR,"symdifference:: operation not implemented - compile PostGIS with GEOS support");
|
||||
PG_RETURN_NULL(); // never get here
|
||||
}
|
||||
PG_FUNCTION_INFO_V1(geomunion);
|
||||
Datum geomunion(PG_FUNCTION_ARGS)
|
||||
{
|
||||
elog(ERROR,"geomunion:: operation not implemented - compile PostGIS with GEOS support");
|
||||
PG_RETURN_NULL(); // never get here
|
||||
}
|
||||
|
||||
PG_FUNCTION_INFO_V1(buffer);
|
||||
Datum buffer(PG_FUNCTION_ARGS)
|
||||
{
|
||||
elog(ERROR,"buffer:: operation not implemented - compile PostGIS with GEOS support");
|
||||
PG_RETURN_NULL(); // never get here
|
||||
}
|
||||
|
||||
|
||||
|
||||
PG_FUNCTION_INFO_V1(relate_full);
|
||||
Datum relate_full(PG_FUNCTION_ARGS)
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in a new issue