mirror of
https://git.osgeo.org/gitea/postgis/postgis
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71c2a26ad3
I wonder if the suite name should really be the file name, could work even better... git-svn-id: http://svn.osgeo.org/postgis/trunk@13246 b70326c6-7e19-0410-871a-916f4a2858ee
892 lines
27 KiB
C
892 lines
27 KiB
C
/**********************************************************************
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* $Id$
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*
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* PostGIS - Spatial Types for PostgreSQL
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* http://postgis.net
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* Copyright 2009 Paul Ramsey <pramsey@cleverelephant.ca>
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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 the GNU General Public Licence. See the COPYING file.
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*
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**********************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "CUnit/Basic.h"
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#include "liblwgeom_internal.h"
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#include "cu_tester.h"
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#include "measures.h"
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#include "lwtree.h"
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static LWGEOM* lwgeom_from_text(const char *str)
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{
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LWGEOM_PARSER_RESULT r;
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if( LW_FAILURE == lwgeom_parse_wkt(&r, (char*)str, LW_PARSER_CHECK_NONE) )
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return NULL;
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return r.geom;
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}
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#define DIST2DTEST(str1, str2, res) do_test_mindistance2d_tolerance(str1, str2, res, __LINE__)
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static void do_test_mindistance2d_tolerance(char *in1, char *in2, double expected_res, int line)
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{
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LWGEOM *lw1;
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LWGEOM *lw2;
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double distance;
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char *msg1 = "test_mindistance2d_tolerance failed (got %g expected %g) at line %d\n";
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char *msg2 = "\n\ndo_test_mindistance2d_tolerance: NULL lwgeom generated from WKT\n %s\n\n";
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lw1 = lwgeom_from_wkt(in1, LW_PARSER_CHECK_NONE);
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lw2 = lwgeom_from_wkt(in2, LW_PARSER_CHECK_NONE);
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if ( ! lw1 )
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{
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printf(msg2, in1);
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exit(1);
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}
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if ( ! lw2 )
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{
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printf(msg2, in2);
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exit(1);
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}
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distance = lwgeom_mindistance2d_tolerance(lw1, lw2, 0.0);
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lwgeom_free(lw1);
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lwgeom_free(lw2);
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if ( fabs(distance - expected_res) > 0.00001 )
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{
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printf(msg1, distance, expected_res, line);
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CU_FAIL();
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}
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else
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{
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CU_PASS();
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}
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}
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static void test_mindistance2d_tolerance(void)
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{
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/*
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** Simple case.
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*/
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DIST2DTEST("POINT(0 0)", "MULTIPOINT(0 1.5,0 2,0 2.5)", 1.5);
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/*
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** Point vs Geometry Collection.
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*/
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DIST2DTEST("POINT(0 0)", "GEOMETRYCOLLECTION(POINT(3 4))", 5.0);
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/*
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** Point vs Geometry Collection Collection.
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*/
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DIST2DTEST("POINT(0 0)", "GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(POINT(3 4)))", 5.0);
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/*
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** Point vs Geometry Collection Collection Collection.
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*/
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DIST2DTEST("POINT(0 0)", "GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(POINT(3 4))))", 5.0);
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/*
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** Point vs Geometry Collection Collection Collection Multipoint.
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*/
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DIST2DTEST("POINT(0 0)", "GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(MULTIPOINT(3 4))))", 5.0);
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/*
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** Geometry Collection vs Geometry Collection
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*/
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DIST2DTEST("GEOMETRYCOLLECTION(POINT(0 0))", "GEOMETRYCOLLECTION(POINT(3 4))", 5.0);
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/*
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** Geometry Collection Collection vs Geometry Collection Collection
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*/
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DIST2DTEST("GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(POINT(0 0)))", "GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(POINT(3 4)))", 5.0);
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/*
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** Geometry Collection Collection Multipoint vs Geometry Collection Collection Multipoint
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*/
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DIST2DTEST("GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(MULTIPOINT(0 0)))", "GEOMETRYCOLLECTION(GEOMETRYCOLLECTION(MULTIPOINT(3 4)))", 5.0);
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/*
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** Linestring vs its start point
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*/
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DIST2DTEST("LINESTRING(-2 0, -0.2 0)", "POINT(-2 0)", 0);
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/*
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** Linestring vs its end point
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*/
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DIST2DTEST("LINESTRING(-0.2 0, -2 0)", "POINT(-2 0)", 0);
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/*
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** Linestring vs its start point (tricky number, see #1459)
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*/
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DIST2DTEST("LINESTRING(-1e-8 0, -0.2 0)", "POINT(-1e-8 0)", 0);
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/*
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** Linestring vs its end point (tricky number, see #1459)
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*/
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DIST2DTEST("LINESTRING(-0.2 0, -1e-8 0)", "POINT(-1e-8 0)", 0);
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/*
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* Circular string and point
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*/
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DIST2DTEST("CIRCULARSTRING(-1 0, 0 1, 1 0)", "POINT(0 0)", 1);
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DIST2DTEST("CIRCULARSTRING(-3 0, -2 0, -1 0, 0 1, 1 0)", "POINT(0 0)", 1);
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/*
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* Circular string and Circular string
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*/
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DIST2DTEST("CIRCULARSTRING(-1 0, 0 1, 1 0)", "CIRCULARSTRING(0 0, 1 -1, 2 0)", 1);
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/*
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* CurvePolygon and Point
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*/
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static char *cs1 = "CURVEPOLYGON(COMPOUNDCURVE(CIRCULARSTRING(1 6, 6 1, 9 7),(9 7, 3 13, 1 6)),COMPOUNDCURVE((3 6, 5 4, 7 4, 7 6),CIRCULARSTRING(7 6,5 8,3 6)))";
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DIST2DTEST(cs1, "POINT(3 14)", 1);
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DIST2DTEST(cs1, "POINT(3 8)", 0);
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DIST2DTEST(cs1, "POINT(6 5)", 1);
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DIST2DTEST(cs1, "POINT(6 4)", 0);
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/*
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* CurvePolygon and Linestring
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*/
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DIST2DTEST(cs1, "LINESTRING(0 0, 50 0)", 0.917484);
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DIST2DTEST(cs1, "LINESTRING(6 0, 10 7)", 0);
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DIST2DTEST(cs1, "LINESTRING(4 4, 4 8)", 0);
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DIST2DTEST(cs1, "LINESTRING(4 7, 5 6, 6 7)", 0.585786);
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DIST2DTEST(cs1, "LINESTRING(10 0, 10 2, 10 0)", 1.52913);
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/*
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* CurvePolygon and Polygon
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*/
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DIST2DTEST(cs1, "POLYGON((10 4, 10 8, 13 8, 13 4, 10 4))", 0.58415);
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DIST2DTEST(cs1, "POLYGON((9 4, 9 8, 12 8, 12 4, 9 4))", 0);
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DIST2DTEST(cs1, "POLYGON((1 4, 1 8, 4 8, 4 4, 1 4))", 0);
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/*
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* CurvePolygon and CurvePolygon
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*/
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DIST2DTEST(cs1, "CURVEPOLYGON(CIRCULARSTRING(-1 4, 0 5, 1 4, 0 3, -1 4))", 0.0475666);
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DIST2DTEST(cs1, "CURVEPOLYGON(CIRCULARSTRING(1 4, 2 5, 3 4, 2 3, 1 4))", 0.0);
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/*
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* MultiSurface and CurvePolygon
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*/
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static char *cs2 = "MULTISURFACE(POLYGON((0 0,0 4,4 4,4 0,0 0)),CURVEPOLYGON(CIRCULARSTRING(8 2,10 4,12 2,10 0,8 2)))";
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DIST2DTEST(cs2, "CURVEPOLYGON(CIRCULARSTRING(5 2,6 3,7 2,6 1,5 2))", 1);
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DIST2DTEST(cs2, "CURVEPOLYGON(CIRCULARSTRING(4 2,5 3,6 2,5 1,4 2))", 0);
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DIST2DTEST(cs2, "CURVEPOLYGON(CIRCULARSTRING(5 3,6 2,5 1,4 2,5 3))", 0);
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DIST2DTEST(cs2, "CURVEPOLYGON(CIRCULARSTRING(4.5 3,5.5 2,4.5 1,3.5 2,4.5 3))", 0);
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DIST2DTEST(cs2, "CURVEPOLYGON(CIRCULARSTRING(5.5 3,6.5 2,5.5 1,4.5 2,5.5 3))", 0.5);
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DIST2DTEST(cs2, "CURVEPOLYGON(CIRCULARSTRING(10 3,11 2,10 1,9 2,10 3))", 0);
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DIST2DTEST(cs2, "CURVEPOLYGON(CIRCULARSTRING(2 3,3 2,2 1,1 2,2 3))", 0);
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DIST2DTEST(cs2, "CURVEPOLYGON(CIRCULARSTRING(5 7,6 8,7 7,6 6,5 7))", 2.60555);
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/*
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* MultiCurve and Linestring
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*/
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DIST2DTEST("LINESTRING(0.5 1,0.5 3)", "MULTICURVE(CIRCULARSTRING(2 3,3 2,2 1,1 2,2 3),(0 0, 0 5))", 0.5);
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}
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static void test_rect_tree_contains_point(void)
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{
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LWPOLY *poly;
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POINT2D p;
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RECT_NODE* tree;
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int result;
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int boundary = 0;
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/* square */
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poly = (LWPOLY*)lwgeom_from_wkt("POLYGON((0 0, 0 1, 1 1, 1 0, 0 0))", LW_PARSER_CHECK_NONE);
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tree = rect_tree_new(poly->rings[0]);
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/* inside square */
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boundary = 0;
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p.x = 0.5;
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p.y = 0.5;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_NOT_EQUAL(result, 0);
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/* outside square */
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boundary = 0;
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p.x = 1.5;
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p.y = 0.5;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(result, 0);
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rect_tree_free(tree);
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lwpoly_free(poly);
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/* ziggy zaggy horizontal saw tooth polygon */
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poly = (LWPOLY*)lwgeom_from_wkt("POLYGON((0 0, 1 3, 2 0, 3 3, 4 0, 4 5, 0 5, 0 0))", LW_PARSER_CHECK_NONE);
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tree = rect_tree_new(poly->rings[0]);
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/* not in, left side */
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boundary = 0;
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p.x = -0.5;
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p.y = 0.5;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(result, 0);
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/* not in, right side */
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boundary = 0;
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p.x = 3.0;
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p.y = 1.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(result, 0);
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/* inside */
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boundary = 0;
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p.x = 2.0;
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p.y = 1.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_NOT_EQUAL(result, 0);
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/* on left border */
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boundary = 0;
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p.x = 0.0;
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p.y = 1.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(boundary, 1);
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/* on right border */
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boundary = 0;
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p.x = 4.0;
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p.y = 0.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(boundary, 1);
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/* on tooth concave */
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boundary = 0;
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p.x = 3.0;
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p.y = 3.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(boundary, 1);
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/* on tooth convex */
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boundary = 0;
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p.x = 2.0;
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p.y = 0.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(boundary, 1);
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rect_tree_free(tree);
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lwpoly_free(poly);
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/* ziggy zaggy vertical saw tooth polygon */
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poly = (LWPOLY*)lwgeom_from_wkt("POLYGON((0 0, 3 1, 0 2, 3 3, 0 4, 3 5, 0 6, 5 6, 5 0, 0 0))", LW_PARSER_CHECK_NONE);
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tree = rect_tree_new(poly->rings[0]);
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/* not in, left side */
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boundary = 0;
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p.x = -0.5;
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p.y = 3.5;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(result, 0);
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/* not in, right side */
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boundary = 0;
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p.x = 6.0;
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p.y = 2.2;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(result, 0);
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/* inside */
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boundary = 0;
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p.x = 3.0;
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p.y = 2.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_NOT_EQUAL(result, 0);
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/* on bottom border */
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boundary = 0;
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p.x = 1.0;
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p.y = 0.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(boundary, 1);
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/* on top border */
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boundary = 0;
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p.x = 3.0;
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p.y = 6.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(boundary, 1);
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/* on tooth concave */
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boundary = 0;
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p.x = 3.0;
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p.y = 1.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(boundary, 1);
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/* on tooth convex */
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boundary = 0;
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p.x = 0.0;
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p.y = 2.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(boundary, 1);
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/* on tooth convex */
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boundary = 0;
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p.x = 0.0;
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p.y = 6.0;
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result = rect_tree_contains_point(tree, &p, &boundary);
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CU_ASSERT_EQUAL(boundary, 1);
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rect_tree_free(tree);
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lwpoly_free(poly);
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}
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static void test_rect_tree_intersects_tree(void)
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{
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LWPOLY *poly1, *poly2;
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RECT_NODE *tree1, *tree2;
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int result;
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/* total overlap, A == B */
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poly1 = (LWPOLY*)lwgeom_from_wkt("POLYGON((0 0, 3 1, 0 2, 3 3, 0 4, 3 5, 0 6, 5 6, 5 0, 0 0))", LW_PARSER_CHECK_NONE);
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poly2 = (LWPOLY*)lwgeom_from_wkt("POLYGON((0 0, 3 1, 0 2, 3 3, 0 4, 3 5, 0 6, 5 6, 5 0, 0 0))", LW_PARSER_CHECK_NONE);
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tree1 = rect_tree_new(poly1->rings[0]);
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tree2 = rect_tree_new(poly2->rings[0]);
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result = rect_tree_intersects_tree(tree1, tree2);
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CU_ASSERT_EQUAL(result, LW_TRUE);
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lwpoly_free(poly1);
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lwpoly_free(poly2);
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rect_tree_free(tree1);
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rect_tree_free(tree2);
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/* hiding between the tines of the comb */
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poly1 = (LWPOLY*)lwgeom_from_wkt("POLYGON((0 0, 3 1, 0 2, 3 3, 0 4, 3 5, 0 6, 5 6, 5 0, 0 0))", LW_PARSER_CHECK_NONE);
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poly2 = (LWPOLY*)lwgeom_from_wkt("POLYGON((0.3 0.7, 0.3 0.8, 0.4 0.8, 0.4 0.7, 0.3 0.7))", LW_PARSER_CHECK_NONE);
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tree1 = rect_tree_new(poly1->rings[0]);
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tree2 = rect_tree_new(poly2->rings[0]);
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result = rect_tree_intersects_tree(tree1, tree2);
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CU_ASSERT_EQUAL(result, LW_FALSE);
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lwpoly_free(poly1);
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lwpoly_free(poly2);
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rect_tree_free(tree1);
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rect_tree_free(tree2);
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/* between the tines, but with a corner overlapping */
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poly1 = (LWPOLY*)lwgeom_from_wkt("POLYGON((0 0, 3 1, 0 2, 3 3, 0 4, 3 5, 0 6, 5 6, 5 0, 0 0))", LW_PARSER_CHECK_NONE);
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poly2 = (LWPOLY*)lwgeom_from_wkt("POLYGON((0.3 0.7, 0.3 0.8, 0.4 0.8, 1.3 0.3, 0.3 0.7))", LW_PARSER_CHECK_NONE);
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tree1 = rect_tree_new(poly1->rings[0]);
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tree2 = rect_tree_new(poly2->rings[0]);
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result = rect_tree_intersects_tree(tree1, tree2);
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CU_ASSERT_EQUAL(result, LW_TRUE);
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lwpoly_free(poly1);
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lwpoly_free(poly2);
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rect_tree_free(tree1);
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rect_tree_free(tree2);
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/* Just touching the top left corner of the comb */
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poly1 = (LWPOLY*)lwgeom_from_wkt("POLYGON((0 0, 3 1, 0 2, 3 3, 0 4, 3 5, 0 6, 5 6, 5 0, 0 0))", LW_PARSER_CHECK_NONE);
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poly2 = (LWPOLY*)lwgeom_from_wkt("POLYGON((-1 5, 0 5, 0 7, -1 7, -1 5))", LW_PARSER_CHECK_NONE);
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tree1 = rect_tree_new(poly1->rings[0]);
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tree2 = rect_tree_new(poly2->rings[0]);
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result = rect_tree_intersects_tree(tree1, tree2);
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CU_ASSERT_EQUAL(result, LW_TRUE);
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lwpoly_free(poly1);
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lwpoly_free(poly2);
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rect_tree_free(tree1);
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rect_tree_free(tree2);
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}
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static void
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test_lwgeom_segmentize2d(void)
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{
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LWGEOM *linein = lwgeom_from_wkt("LINESTRING(0 0,10 0)", LW_PARSER_CHECK_NONE);
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LWGEOM *lineout = lwgeom_segmentize2d(linein, 5);
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char *strout = lwgeom_to_ewkt(lineout);
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CU_ASSERT_STRING_EQUAL(strout, "LINESTRING(0 0,5 0,10 0)");
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lwfree(strout);
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lwgeom_free(linein);
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lwgeom_free(lineout);
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/* test interruption */
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linein = lwgeom_from_wkt("LINESTRING(0 0,10 0)", LW_PARSER_CHECK_NONE);
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lwgeom_request_interrupt();
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lineout = lwgeom_segmentize2d(linein, 1e-100);
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CU_ASSERT_EQUAL(lineout, NULL);
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lwgeom_free(linein);
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linein = lwgeom_from_wkt("MULTILINESTRING((0 0,10 0),(20 0, 30 0))", LW_PARSER_CHECK_NONE);
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lwgeom_request_interrupt();
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lineout = lwgeom_segmentize2d(linein, 1e-100);
|
|
CU_ASSERT_EQUAL(lineout, NULL);
|
|
lwgeom_free(linein);
|
|
|
|
linein = lwgeom_from_wkt(
|
|
"MULTIPOLYGON(((0 0,20 0,20 20,0 20,0 0),(2 2,2 4,4 4,4 2,2 2),(6 6,6 8,8 8,8 6,6 6)),((40 0,40 20,60 20,60 0,40 0),(42 2,42 4,44 4,44 2,42 2)))"
|
|
, LW_PARSER_CHECK_NONE);
|
|
lwgeom_request_interrupt();
|
|
lineout = lwgeom_segmentize2d(linein, 1e-100);
|
|
CU_ASSERT_EQUAL(lineout, NULL);
|
|
lwgeom_free(linein);
|
|
|
|
linein = lwgeom_from_wkt(
|
|
"GEOMETRYCOLLECTION(MULTIPOLYGON(((0 0,20 0,20 20,0 20,0 0),(2 2,2 4,4 4,4 2,2 2),(6 6,6 8,8 8,8 6,6 6)),((40 0,40 20,60 20,60 0,40 0),(42 2,42 4,44 4,44 2,42 2))),MULTILINESTRING((0 0,10 0),(20 0, 30 0)),MULTIPOINT(0 0, 3 4))"
|
|
, LW_PARSER_CHECK_NONE);
|
|
CU_ASSERT_FATAL(linein != NULL);
|
|
lwgeom_request_interrupt();
|
|
lineout = lwgeom_segmentize2d(linein, 1e-100);
|
|
CU_ASSERT_EQUAL(lineout, NULL);
|
|
lwgeom_free(linein);
|
|
|
|
linein = lwgeom_from_wkt("LINESTRING(20 0, 30 0)", LW_PARSER_CHECK_NONE);
|
|
/* NOT INTERRUPTED */
|
|
lineout = lwgeom_segmentize2d(linein, 5);
|
|
strout = lwgeom_to_ewkt(lineout);
|
|
CU_ASSERT_STRING_EQUAL(strout, "LINESTRING(20 0,25 0,30 0)");
|
|
lwfree(strout);
|
|
lwgeom_free(linein);
|
|
lwgeom_free(lineout);
|
|
}
|
|
|
|
static void
|
|
test_lwgeom_locate_along(void)
|
|
{
|
|
LWGEOM *geom = NULL;
|
|
LWGEOM *out = NULL;
|
|
double measure = 105.0;
|
|
char *str;
|
|
|
|
/* ST_Locatealong(ST_GeomFromText('MULTILINESTRING M ((1 2 3, 5 4 5), (50 50 1, 60 60 200))'), 105) */
|
|
geom = lwgeom_from_wkt("MULTILINESTRING M ((1 2 3, 5 4 5), (50 50 1, 60 60 200))", LW_PARSER_CHECK_NONE);
|
|
out = lwgeom_locate_along(geom, measure, 0.0);
|
|
str = lwgeom_to_wkt(out, WKT_ISO, 8, NULL);
|
|
lwgeom_free(geom);
|
|
lwgeom_free(out);
|
|
CU_ASSERT_STRING_EQUAL("MULTIPOINT M (55.226131 55.226131 105)", str);
|
|
lwfree(str);
|
|
|
|
/* ST_Locatealong(ST_GeomFromText('MULTILINESTRING M ((1 2 3, 5 4 5), (50 50 1, 60 60 200))'), 105) */
|
|
geom = lwgeom_from_wkt("MULTILINESTRING M ((1 2 3, 3 4 2, 9 4 3), (1 2 3, 5 4 5), (50 50 1, 60 60 200))", LW_PARSER_CHECK_NONE);
|
|
out = lwgeom_locate_along(geom, measure, 0.0);
|
|
str = lwgeom_to_wkt(out, WKT_ISO, 8, NULL);
|
|
lwgeom_free(geom);
|
|
lwgeom_free(out);
|
|
CU_ASSERT_STRING_EQUAL("MULTIPOINT M (55.226131 55.226131 105)", str);
|
|
lwfree(str);
|
|
}
|
|
|
|
static void
|
|
test_lw_dist2d_pt_arc(void)
|
|
{
|
|
/* int lw_dist2d_pt_arc(const POINT2D* P, const POINT2D* A1, const POINT2D* A2, const POINT2D* A3, DISTPTS* dl) */
|
|
DISTPTS dl;
|
|
POINT2D P, A1, A2, A3;
|
|
int rv;
|
|
|
|
|
|
/* Point within unit semicircle, 0.5 units from arc */
|
|
A1.x = -1; A1.y = 0;
|
|
A2.x = 0 ; A2.y = 1;
|
|
A3.x = 1 ; A3.y = 0;
|
|
P.x = 0 ; P.y = 0.5;
|
|
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_arc(&P, &A1, &A2, &A3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0.5, 0.000001);
|
|
|
|
/* Point outside unit semicircle, 0.5 units from arc */
|
|
P.x = 0 ; P.y = 1.5;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_arc(&P, &A1, &A2, &A3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0.5, 0.000001);
|
|
|
|
/* Point outside unit semicircle, sqrt(2) units from arc end point*/
|
|
P.x = 0 ; P.y = -1;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_arc(&P, &A1, &A2, &A3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, sqrt(2.0), 0.000001);
|
|
|
|
/* Point outside unit semicircle, sqrt(2)-1 units from arc end point*/
|
|
P.x = 1 ; P.y = 1;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_arc(&P, &A1, &A2, &A3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, sqrt(2.0)-1, 0.000001);
|
|
|
|
/* Point on unit semicircle midpoint */
|
|
P.x = 0 ; P.y = 1;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_arc(&P, &A1, &A2, &A3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0, 0.000001);
|
|
|
|
/* Point on unit semicircle endpoint */
|
|
P.x = 1 ; P.y = 0;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_arc(&P, &A1, &A2, &A3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0, 0.000001);
|
|
|
|
/* Point inside closed circle */
|
|
P.x = 0 ; P.y = 0.5;
|
|
A2.x = 1; A2.y = 0;
|
|
A3 = A1;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_arc(&P, &A1, &A2, &A3, &dl);
|
|
//printf("distance %g\n", dl.distance);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0.5, 0.000001);
|
|
}
|
|
|
|
static void
|
|
test_lw_dist2d_seg_arc(void)
|
|
{
|
|
/* int lw_dist2d_seg_arc(const POINT2D *A1, const POINT2D *A2, const POINT2D *B1, const POINT2D *B2, const POINT2D *B3, DISTPTS *dl) */
|
|
|
|
DISTPTS dl;
|
|
POINT2D A1, A2, B1, B2, B3;
|
|
int rv;
|
|
|
|
/* Unit semicircle */
|
|
B1.x = -1; B1.y = 0;
|
|
B2.x = 0 ; B2.y = 1;
|
|
B3.x = 1 ; B3.y = 0;
|
|
|
|
/* Edge above the unit semicircle */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = -2; A1.y = 2;
|
|
A2.x = 2 ; A2.y = 2;
|
|
rv = lw_dist2d_seg_arc(&A1, &A2, &B1, &B2, &B3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 1, 0.000001);
|
|
|
|
/* Edge to the right of the unit semicircle */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = 2; A1.y = -2;
|
|
A2.x = 2; A2.y = 2;
|
|
rv = lw_dist2d_seg_arc(&A1, &A2, &B1, &B2, &B3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 1, 0.000001);
|
|
|
|
/* Edge to the left of the unit semicircle */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = -2; A1.y = -2;
|
|
A2.x = -2; A2.y = 2;
|
|
rv = lw_dist2d_seg_arc(&A1, &A2, &B1, &B2, &B3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 1, 0.000001);
|
|
|
|
/* Edge within the unit semicircle */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = 0; A1.y = 0;
|
|
A2.x = 0; A2.y = 0.5;
|
|
rv = lw_dist2d_seg_arc(&A1, &A2, &B1, &B2, &B3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0.5, 0.000001);
|
|
|
|
/* Edge grazing the unit semicircle */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = -2; A1.y = 1;
|
|
A2.x = 2; A2.y = 1;
|
|
rv = lw_dist2d_seg_arc(&A1, &A2, &B1, &B2, &B3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0., 0.000001);
|
|
|
|
/* Line grazing the unit semicircle, but edge not */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = 1; A1.y = 1;
|
|
A2.x = 2; A2.y = 1;
|
|
rv = lw_dist2d_seg_arc(&A1, &A2, &B1, &B2, &B3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, sqrt(2.0)-1, 0.000001);
|
|
|
|
/* Edge intersecting the unit semicircle */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = 0; A1.y = 0;
|
|
A2.x = 2; A2.y = 2;
|
|
rv = lw_dist2d_seg_arc(&A1, &A2, &B1, &B2, &B3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0, 0.000001);
|
|
|
|
/* Line intersecting the unit semicircle, but edge not */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = -1; A1.y = 1;
|
|
A2.x = -2; A2.y = 2;
|
|
rv = lw_dist2d_seg_arc(&A1, &A2, &B1, &B2, &B3, &dl);
|
|
//printf("distance %g\n", dl.distance);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, sqrt(2.0)-1, 0.000001);
|
|
}
|
|
|
|
static void
|
|
test_lw_dist2d_arc_arc(void)
|
|
{
|
|
/* lw_dist2d_arc_arc(const POINT2D *A1, const POINT2D *A2, const POINT2D *A3,
|
|
const POINT2D *B1, const POINT2D *B2, const POINT2D *B3,
|
|
DISTPTS *dl) */
|
|
DISTPTS dl;
|
|
POINT2D A1, A2, A3, B1, B2, B3;
|
|
int rv;
|
|
|
|
/* Unit semicircle at 0,0 */
|
|
B1.x = -1; B1.y = 0;
|
|
B2.x = 0 ; B2.y = 1;
|
|
B3.x = 1 ; B3.y = 0;
|
|
|
|
/* Arc above the unit semicircle */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = -1; A1.y = 3;
|
|
A2.x = 0 ; A2.y = 2;
|
|
A3.x = 1 ; A3.y = 3;
|
|
rv = lw_dist2d_arc_arc(&A1, &A2, &A3, &B1, &B2, &B3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 1, 0.000001);
|
|
|
|
/* Arc grazes the unit semicircle */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = -1; A1.y = 2;
|
|
A2.x = 0 ; A2.y = 1;
|
|
A3.x = 1 ; A3.y = 2;
|
|
rv = lw_dist2d_arc_arc(&A1, &A2, &A3, &B1, &B2, &B3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0, 0.000001);
|
|
|
|
/* Circles intersect, but arcs do not */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = -1; A1.y = 1;
|
|
A2.x = 0; A2.y = 2;
|
|
A3.x = 1; A3.y = 1;
|
|
rv = lw_dist2d_arc_arc(&A1, &A2, &A3, &B1, &B2, &B3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, sqrt(2)-1, 0.000001);
|
|
|
|
/* Circles and arcs intersect */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = -1; A1.y = 1;
|
|
A2.x = 0; A2.y = 0;
|
|
A3.x = 1; A3.y = 1;
|
|
rv = lw_dist2d_arc_arc(&A1, &A2, &A3, &B1, &B2, &B3, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0, 0.000001);
|
|
|
|
/* inscribed and closest on arcs */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = -0.5; A1.y = 0.0;
|
|
A2.x = 0.0; A2.y = 0.5;
|
|
A3.x = 0.5; A3.y = 0.0;
|
|
rv = lw_dist2d_arc_arc(&A1, &A2, &A3, &B1, &B2, &B3, &dl);
|
|
//printf("distance %g\n", dl.distance);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0.5, 0.000001);
|
|
|
|
/* inscribed and closest not on arcs */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
A1.x = -0.5; A1.y = 0.0;
|
|
A2.x = 0.0; A2.y = -0.5;
|
|
A3.x = 0.5; A3.y = 0.0;
|
|
rv = lw_dist2d_arc_arc(&A1, &A2, &A3, &B1, &B2, &B3, &dl);
|
|
//printf("distance %g\n", dl.distance);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0.5, 0.000001);
|
|
}
|
|
|
|
static void
|
|
test_lw_arc_length(void)
|
|
{
|
|
/* double lw_arc_length(const POINT2D *A1, const POINT2D *A2, const POINT2D *A3) */
|
|
|
|
POINT2D A1, A2, A3;
|
|
double d;
|
|
|
|
/* Unit semicircle at 0,0 */
|
|
A1.x = -1; A1.y = 0;
|
|
A2.x = 0 ; A2.y = 1;
|
|
A3.x = 1 ; A3.y = 0;
|
|
|
|
/* Arc above the unit semicircle */
|
|
d = lw_arc_length(&A1, &A2, &A3);
|
|
CU_ASSERT_DOUBLE_EQUAL(d, M_PI, 0.000001);
|
|
d = lw_arc_length(&A3, &A2, &A1);
|
|
CU_ASSERT_DOUBLE_EQUAL(d, M_PI, 0.000001);
|
|
|
|
/* Unit semicircle at 0,0 */
|
|
A1.x = 0; A1.y = 1;
|
|
A2.x = 1; A2.y = 0;
|
|
A3.x = 0; A3.y = -1;
|
|
|
|
/* Arc to right of the unit semicircle */
|
|
d = lw_arc_length(&A1, &A2, &A3);
|
|
CU_ASSERT_DOUBLE_EQUAL(d, M_PI, 0.000001);
|
|
d = lw_arc_length(&A3, &A2, &A1);
|
|
CU_ASSERT_DOUBLE_EQUAL(d, M_PI, 0.000001);
|
|
|
|
/* Unit 3/4 circle at 0,0 */
|
|
A1.x = -1; A1.y = 0;
|
|
A2.x = 1; A2.y = 0;
|
|
A3.x = 0; A3.y = -1;
|
|
|
|
/* Arc to right of the unit semicircle */
|
|
d = lw_arc_length(&A1, &A2, &A3);
|
|
CU_ASSERT_DOUBLE_EQUAL(d, 3*M_PI/2, 0.000001);
|
|
d = lw_arc_length(&A3, &A2, &A1);
|
|
CU_ASSERT_DOUBLE_EQUAL(d, 3*M_PI/2, 0.000001);
|
|
}
|
|
|
|
static void
|
|
test_lw_dist2d_pt_ptarrayarc(void)
|
|
{
|
|
/* lw_dist2d_pt_ptarrayarc(const POINT2D *p, const POINTARRAY *pa, DISTPTS *dl) */
|
|
DISTPTS dl;
|
|
int rv;
|
|
LWLINE *lwline;
|
|
POINT2D P;
|
|
|
|
/* Unit semi-circle above X axis */
|
|
lwline = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(-1 0, 0 1, 1 0)"));
|
|
|
|
/* Point at origin */
|
|
P.x = P.y = 0;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_ptarrayarc(&P, lwline->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 1, 0.000001);
|
|
|
|
/* Point above arc on Y axis */
|
|
P.y = 2;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_ptarrayarc(&P, lwline->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 1, 0.000001);
|
|
|
|
/* Point 45 degrees off arc, 2 radii from center */
|
|
P.y = P.x = 2 * cos(M_PI/4);
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_ptarrayarc(&P, lwline->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 1, 0.000001);
|
|
|
|
/* Four unit semi-circles surrounding the 2x2 box around origin */
|
|
lwline_free(lwline);
|
|
lwline = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(-1 -1, -2 0, -1 1, 0 2, 1 1, 2 0, 1 -1, 0 -2, -1 -1)"));
|
|
|
|
/* Point at origin */
|
|
P.x = P.y = 0;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_ptarrayarc(&P, lwline->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, sqrt(2.0), 0.000001);
|
|
|
|
/* Point on box edge */
|
|
P.x = -1; P.y = 0;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_ptarrayarc(&P, lwline->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 1, 0.000001);
|
|
|
|
/* Point within a semicircle lobe */
|
|
P.x = -1.5; P.y = 0;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_ptarrayarc(&P, lwline->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0.5, 0.000001);
|
|
|
|
/* Point outside a semicircle lobe */
|
|
P.x = -2.5; P.y = 0;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_ptarrayarc(&P, lwline->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0.5, 0.000001);
|
|
|
|
/* Point outside a semicircle lobe */
|
|
P.y = -2.5; P.x = 0;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_ptarrayarc(&P, lwline->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0.5, 0.000001);
|
|
|
|
/* Point outside a semicircle lobe */
|
|
P.y = 2; P.x = 1;
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_pt_ptarrayarc(&P, lwline->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, sqrt(2.0)-1.0, 0.000001);
|
|
|
|
/* Clean up */
|
|
lwline_free(lwline);
|
|
}
|
|
|
|
static void
|
|
test_lw_dist2d_ptarray_ptarrayarc(void)
|
|
{
|
|
/* int lw_dist2d_ptarray_ptarrayarc(const POINTARRAY *pa, const POINTARRAY *pb, DISTPTS *dl) */
|
|
DISTPTS dl;
|
|
int rv;
|
|
LWLINE *lwline1;
|
|
LWLINE *lwline2;
|
|
|
|
/* Unit semi-circle above X axis */
|
|
lwline1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(-1 0, 0 1, 1 0)"));
|
|
|
|
/* Line above top of semi-circle */
|
|
lwline2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(-2 2, -1 2, 1 2, 2 2)"));
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_ptarray_ptarrayarc(lwline2->points, lwline1->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 1, 0.000001);
|
|
|
|
/* Reversed arguments, should fail */
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
cu_error_msg_reset();
|
|
rv = lw_dist2d_ptarray_ptarrayarc(lwline1->points, lwline2->points, &dl);
|
|
//printf("%s\n", cu_error_msg);
|
|
CU_ASSERT_EQUAL( rv, LW_FAILURE );
|
|
CU_ASSERT_STRING_EQUAL("lw_dist2d_ptarray_ptarrayarc called with non-arc input", cu_error_msg);
|
|
|
|
lwline_free(lwline2);
|
|
|
|
/* Line along side of semi-circle */
|
|
lwline2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(-2 -3, -2 -2, -2 2, -2 3)"));
|
|
lw_dist2d_distpts_init(&dl, DIST_MIN);
|
|
rv = lw_dist2d_ptarray_ptarrayarc(lwline2->points, lwline1->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 1, 0.000001);
|
|
|
|
/* Four unit semi-circles surrounding the 2x2 box around origin */
|
|
lwline_free(lwline1);
|
|
lwline_free(lwline2);
|
|
lwline1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(-1 -1, -2 0, -1 1, 0 2, 1 1, 2 0, 1 -1, 0 -2, -1 -1)"));
|
|
lwline2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(-2.5 -3, -2.5 -2, -2.5 2, -2.5 3)"));
|
|
rv = lw_dist2d_ptarray_ptarrayarc(lwline2->points, lwline1->points, &dl);
|
|
CU_ASSERT_EQUAL( rv, LW_SUCCESS );
|
|
CU_ASSERT_DOUBLE_EQUAL(dl.distance, 0.5, 0.000001);
|
|
|
|
lwline_free(lwline2);
|
|
lwline_free(lwline1);
|
|
}
|
|
|
|
/*
|
|
** Used by test harness to register the tests in this file.
|
|
*/
|
|
void measures_suite_setup(void);
|
|
void measures_suite_setup(void)
|
|
{
|
|
CU_pSuite suite = CU_add_suite("measures", NULL, NULL);
|
|
PG_ADD_TEST(suite, test_mindistance2d_tolerance);
|
|
PG_ADD_TEST(suite, test_rect_tree_contains_point);
|
|
PG_ADD_TEST(suite, test_rect_tree_intersects_tree);
|
|
PG_ADD_TEST(suite, test_lwgeom_segmentize2d);
|
|
PG_ADD_TEST(suite, test_lwgeom_locate_along);
|
|
PG_ADD_TEST(suite, test_lw_dist2d_pt_arc);
|
|
PG_ADD_TEST(suite, test_lw_dist2d_seg_arc);
|
|
PG_ADD_TEST(suite, test_lw_dist2d_arc_arc);
|
|
PG_ADD_TEST(suite, test_lw_arc_length);
|
|
PG_ADD_TEST(suite, test_lw_dist2d_pt_ptarrayarc);
|
|
PG_ADD_TEST(suite, test_lw_dist2d_ptarray_ptarrayarc);
|
|
}
|