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RectangleIntersectionTest.cpp
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RectangleIntersectionTest.cpp
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//
// Test Suite for geos::operation::intersection::RectangleIntersection class.
// tut
#include <tut.hpp>
// geos
#include <geos/operation/intersection/Rectangle.h>
#include <geos/operation/intersection/RectangleIntersection.h>
#include <geos/operation/valid/IsValidOp.h>
#include <geos/operation/valid/TopologyValidationError.h>
#include <geos/geom/GeometryFactory.h>
#include <geos/geom/Geometry.h>
#include <geos/geom/Polygon.h>
#include <geos/geom/Point.h>
#include <geos/io/WKTReader.h>
#include <geos/io/WKTWriter.h>
// std
#include <memory>
#include <string>
#include <vector>
#include <iostream>
namespace tut
{
//
// Test Group
//
// Common data used by tests
struct test_rectangleintersectiontest_data
{
geos::geom::GeometryFactory gf;
geos::io::WKTReader wktreader;
geos::io::WKTWriter wktwriter;
typedef geos::geom::Geometry::AutoPtr GeomPtr;
typedef geos::geom::Geometry Geom;
typedef geos::operation::intersection::Rectangle Rectangle;
typedef geos::operation::intersection::RectangleIntersection RectangleIntersection;
test_rectangleintersectiontest_data()
: gf(),
wktreader(&gf)
{
wktwriter.setTrim(true);
}
GeomPtr readWKT(const std::string& inputWKT)
{
return GeomPtr(wktreader.read(inputWKT));
}
static GeomPtr normalize(const Geom& g)
{
GeomPtr g2 ( g.clone() );
g2->normalize();
return g2;
}
bool isEqual(const Geom& a, const Geom& b, double tolerance=0)
{
using std::cout;
using std::endl;
using namespace geos::geom;
bool eq = true;
//if ( 0 && ! tolerance ) { ensure(false); // DISABLED
if ( ! tolerance ) {
if ( a.getGeometryTypeId() == GEOS_GEOMETRYCOLLECTION ) {
eq = b.getGeometryTypeId() == GEOS_GEOMETRYCOLLECTION;
} else if ( b.getGeometryTypeId() == GEOS_GEOMETRYCOLLECTION ) {
eq = false;
}
if ( eq ) eq = a.equals(&b);
if ( ! eq ) {
cout << "OBTAINED: " << wktwriter.write(&b) << endl;
}
} else {
// TODO: use HausdorffDistance ?
GeomPtr a2 = normalize(a);
GeomPtr b2 = normalize(b);
eq = a2->equalsExact(b2.get(), tolerance);
if ( ! eq ) {
cout << "OBTAINED: " << wktwriter.write(b2.get()) << endl;
}
}
return eq;
}
void doLineClipTest(const char* inputWKT, const std::string& expectedWKT, const Rectangle& rect, double tolerance=0)
{
GeomPtr g = readWKT(inputWKT);
ensure(g.get());
GeomPtr obt = RectangleIntersection::clipBoundary(*g,rect);
ensure(obt.get());
bool ok = isEqual(*readWKT(expectedWKT), *obt, tolerance);
ensure(ok);
}
void doClipTest(const char* inputWKT, const std::string& expectedWKT, const Rectangle& rect, double tolerance=0)
{
GeomPtr g = readWKT(inputWKT);
ensure(g.get());
GeomPtr obt;
bool ok;
using std::cout;
using std::endl;
using geos::operation::valid::IsValidOp;
using geos::operation::valid::TopologyValidationError;
#if 1 // Run trough RectangleIntersection
obt = RectangleIntersection::clip(*g,rect);
ensure(obt.get());
IsValidOp isValidOp(obt.get());
bool valid = isValidOp.isValid();
if ( ! valid ) {
TopologyValidationError* err = isValidOp.getValidationError();
cout << "Invalid result: " << err->toString() << endl
<< wktwriter.write(obt.get()) << endl;
}
ensure(valid);
ok = isEqual(*readWKT(expectedWKT), *obt, tolerance);
ensure(ok);
#endif
#if 1 // Compare with GEOSIntersection output
GeomPtr g2 ( rect.toPolygon(*g->getFactory()) );
obt.reset(g->intersection(g2.get()));
//ensure(obt->isValid());
ensure(obt.get());
ok = isEqual(*readWKT(expectedWKT), *obt, tolerance);
ensure(ok);
#endif
}
};
typedef test_group<test_rectangleintersectiontest_data, 256> group;
typedef group::object object;
group test_rectangleintersectiontest_group("geos::operation::intersection::RectangleIntersection");
// inside
template<> template<> void object::test<1>()
{
doLineClipTest(
"LINESTRING (1 1,1 9,9 9,9 1)",
"LINESTRING (1 1,1 9,9 9,9 1)",
Rectangle(0,0,10,10)
);
}
// outside
template<> template<> void object::test<2>()
{
doLineClipTest(
"LINESTRING (-1 -9,-1 11,9 11)",
"GEOMETRYCOLLECTION EMPTY",
Rectangle(0,0,10,10)
);
}
// go in from left
template<> template<> void object::test<3>()
{
doLineClipTest(
"LINESTRING (-1 5,5 5,9 9)",
"LINESTRING (0 5,5 5,9 9)",
Rectangle(0,0,10,10)
);
}
// go out from right
template<> template<> void object::test<4>()
{
doLineClipTest(
"LINESTRING (5 5,8 5,12 5)",
"LINESTRING (5 5,8 5,10 5)",
Rectangle(0,0,10,10)
);
}
// go in and out
template<> template<> void object::test<5>()
{
doLineClipTest(
"LINESTRING (5 -1,5 5,1 2,-3 2,1 6)",
"MULTILINESTRING ((5 0,5 5,1 2,0 2),(0 5,1 6))",
Rectangle(0,0,10,10)
);
}
// go along left edge
template<> template<> void object::test<6>()
{
doLineClipTest(
"LINESTRING (0 3,0 5,0 7)",
//"GEOMETRYCOLLECTION EMPTY",
"LINESTRING (0 3,0 5,0 7)",
Rectangle(0,0,10,10)
);
}
// go out from left edge
template<> template<> void object::test<7>()
{
doLineClipTest(
"LINESTRING (0 3,0 5,-1 7)",
//"GEOMETRYCOLLECTION EMPTY",
"LINESTRING (0 3,0 5)",
Rectangle(0,0,10,10)
);
}
// go in from left edge
template<> template<> void object::test<8>()
{
doLineClipTest(
"LINESTRING (0 3,0 5,2 7)",
//"LINESTRING (0 5,2 7)",
"MULTILINESTRING ((0 5, 2 7), (0 3, 0 5))", // overlay-op result
Rectangle(0,0,10,10)
);
}
// triangle corner at bottom left corner
template<> template<> void object::test<9>()
{
doLineClipTest(
"LINESTRING (2 1,0 0,1 2)",
//"LINESTRING (2 1,0 0,1 2)",
"MULTILINESTRING ((0 0, 2 1), (0 0, 1 2))", // overlay-op result
Rectangle(0,0,10,10)
);
}
// go from in to edge and back in
template<> template<> void object::test<10>()
{
doLineClipTest(
"LINESTRING (3 3,0 3,0 5,2 7)",
//"MULTILINESTRING ((3 3,0 3),(0 5,2 7))",
"MULTILINESTRING ((3 3, 0 3), (0 3, 0 5), (0 5, 2 7))",
Rectangle(0,0,10,10)
);
}
// go from in to edge and then straight out
template<> template<> void object::test<11>()
{
doLineClipTest(
"LINESTRING (5 5,10 5,20 5)",
"LINESTRING (5 5,10 5)",
Rectangle(0,0,10,10)
);
}
// triangle corner at left edge
template<> template<> void object::test<12>()
{
doLineClipTest(
"LINESTRING (3 3,0 6,3 9)",
//"LINESTRING (3 3,0 6,3 9)",
"MULTILINESTRING ((0 6, 3 9), (0 6, 3 3))", // overlay-op result
Rectangle(0,0,10,10)
);
}
// polygon completely inside
template<> template<> void object::test<13>()
{
doLineClipTest(
"POLYGON ((5 5,5 6,6 6,6 5,5 5))",
"POLYGON ((5 5,5 6,6 6,6 5,5 5))",
Rectangle(0,0,10,10)
);
}
// polygon completely outside
template<> template<> void object::test<14>()
{
doLineClipTest(
"POLYGON ((15 15,15 16,16 16,16 15,15 15))",
"GEOMETRYCOLLECTION EMPTY",
Rectangle(0,0,10,10)
);
}
// polygon surrounds the rectangle
template<> template<> void object::test<15>()
{
doLineClipTest(
"POLYGON ((-1 -1,-1 11,11 11,11 -1,-1 -1))",
"GEOMETRYCOLLECTION EMPTY",
Rectangle(0,0,10,10)
);
}
// polygon cuts the rectangle
template<> template<> void object::test<16>()
{
doLineClipTest(
"POLYGON ((-1 -1,-1 5,5 5,5 -1,-1 -1))",
"LINESTRING (0 5,5 5,5 0)",
Rectangle(0,0,10,10)
);
}
// polygon with hole cuts the rectangle
template<> template<> void object::test<17>()
{
doLineClipTest(
"POLYGON ((-2 -2,-2 5,5 5,5 -2,-2 -2), (3 3,4 4,4 2,3 3))",
"GEOMETRYCOLLECTION (POLYGON ((3 3,4 4,4 2,3 3)),LINESTRING (0 5,5 5,5 0))",
Rectangle(0,0,10,10)
);
}
// rectangle cuts both the polygon and the hole
template<> template<> void object::test<18>()
{
doLineClipTest(
"POLYGON ((-2 -2,-2 5,5 5,5 -2,-2 -2), (-1 -1,3 1,3 3,-1 -1))",
"MULTILINESTRING ((0 5,5 5,5 0),(1 0,3 1,3 3,0 0))",
Rectangle(0,0,10,10)
);
}
// Triangle at two corners and one edge
template<> template<> void object::test<19>()
{
doLineClipTest(
"POLYGON ((0 0,10 0,5 10,0 0))",
//"LINESTRING (10 0,5 10,0 0)",
"MULTILINESTRING ((5 10, 10 0), (0 0, 5 10))", // overlay-op result
Rectangle(0,0,10,10)
);
}
// Same triangle with another starting point
template<> template<> void object::test<20>()
{
doLineClipTest(
"POLYGON ((5 10,0 0,10 0,5 10))",
"LINESTRING (10 0,5 10,0 0)",
Rectangle(0,0,10,10)
);
}
// Triangle intersection at corner and edge
template<> template<> void object::test<21>()
{
doLineClipTest(
"POLYGON ((-5 -5,5 5,5 -5,-5 -5))",
"LINESTRING (0 0,5 5,5 0)",
Rectangle(0,0,10,10)
);
}
// Triangle intersection at adjacent edges
template<> template<> void object::test<22>()
{
doLineClipTest(
"POLYGON ((-1 5,5 11,5 5,-1 5))",
"MULTILINESTRING ((0 6,4 10),(5 10,5 5,0 5))",
Rectangle(0,0,10,10)
);
}
// One triangle intersection and one inside edge
template<> template<> void object::test<23>()
{
doLineClipTest(
"POLYGON ((-5 5,5 10,5 5,-5 5))",
"LINESTRING (0.0 7.5,5 10,5 5,0 5)",
Rectangle(0,0,10,10)
);
}
// Triangle intersection at center and end of the same edge
template<> template<> void object::test<24>()
{
doLineClipTest(
"POLYGON ((-10 5,10 10,10 5,-10 5))",
//"MULTILINESTRING ((0.0 7.5,10 10),(10 5,0 5))",
"LINESTRING (0 5, 10 5, 10 10, 0 7.5)", // overlay-op result
Rectangle(0,0,10,10)
);
}
// Two different edges clips
template<> template<> void object::test<25>()
{
doLineClipTest(
"POLYGON ((-5 5,15 15,15 5,-5 5))",
"MULTILINESTRING ((0.0 7.5,5 10),(10 5,0 5))",
Rectangle(0,0,10,10)
);
}
// Inside triangle with all corners at edges
template<> template<> void object::test<26>()
{
doLineClipTest(
"POLYGON ((0 5,5 10,10 5,0 5))",
//"POLYGON ((0 5,5 10,10 5,0 5))",
"MULTILINESTRING ((10 5, 0 5, 5 10), (5 10, 10 5))",
Rectangle(0,0,10,10)
);
}
// Inside triangle whose base is one of the edges
template<> template<> void object::test<27>()
{
doLineClipTest(
"POLYGON ((0 0,5 5,10 0,0 0))",
"LINESTRING (0 0,5 5,10 0)",
Rectangle(0,0,10,10)
);
}
// Triangle touching two corners on the outside
template<> template<> void object::test<28>()
{
doLineClipTest(
"POLYGON ((-5 5,5 15,15 5,-5 5))",
"LINESTRING (10 5,0 5)",
Rectangle(0,0,10,10)
);
}
// Triangle with a diagonal and sharing two edges
template<> template<> void object::test<29>()
{
doLineClipTest(
"POLYGON ((0 0,10 10,10 0,0 0))",
//"LINESTRING (0 0,10 10)",
//"POLYGON ((0 0,10 10,10 0,0 0))",
"LINESTRING (10 10, 10 0, 0 0, 10 10)",
Rectangle(0,0,10,10)
);
}
// Triangle exits edge at a corner
template<> template<> void object::test<30>()
{
doLineClipTest(
"POLYGON ((-5 0,5 10,5 0,-5 0))",
"LINESTRING (0 5,5 10,5 0)",
Rectangle(0,0,10,10)
);
}
// Triangle enters edge at a corner
template<> template<> void object::test<31>()
{
doLineClipTest(
"POLYGON ((-5 10,5 10,0 0,-5 10))",
"LINESTRING (5 10,0 0)",
Rectangle(0,0,10,10)
);
}
// Triangle enters and exits the same edge
template<> template<> void object::test<32>()
{
doLineClipTest(
"POLYGON ((-5 0,5 10,15 0,-5 0))",
"LINESTRING (0 5,5 10,10 5)",
Rectangle(0,0,10,10)
);
}
// Triangle enters at a corner and exits at another
template<> template<> void object::test<33>()
{
doLineClipTest(
"POLYGON ((-5 -5,15 15,15 -5,-5 -5))",
"LINESTRING (0 0,10 10)",
Rectangle(0,0,10,10)
);
}
// From outside to nearest edge etc
template<> template<> void object::test<34>()
{
doLineClipTest(
"POLYGON ((-5 -5,0 5,5 0,-5 -5))",
"LINESTRING (0 5,5 0)",
Rectangle(0,0,10,10)
);
}
// From outside to opposite edge etc
template<> template<> void object::test<35>()
{
doLineClipTest(
"POLYGON ((-10 5,10 5,0 -5,-10 5))",
"LINESTRING (0 5,10 5,5 0)",
Rectangle(0,0,10,10)
);
}
// Drew all combinations I could imagine on paper, and added the following.
// All triangles fully inside
template<> template<> void object::test<36>() {
doLineClipTest(
"POLYGON ((0 0,0 10,10 10,0 0))",
"LINESTRING (10 10,0 0)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<37>()
{
doLineClipTest(
"POLYGON ((0 5,0 10,10 10,0 5))",
"LINESTRING (10 10,0 5)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<38>()
{
doLineClipTest(
"POLYGON ((0 10,10 10,5 0,0 10))",
//"LINESTRING (10 10,5 0,0 10)",
"MULTILINESTRING ((5 0, 10 10), (0 10, 5 0))", // overlay-op result
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<39>()
{
doLineClipTest(
"POLYGON ((0 10,10 10,5 5,0 10))",
"LINESTRING (10 10,5 5,0 10)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<40>()
{
doLineClipTest(
"POLYGON ((0 10,5 10,0 5,0 10))",
"LINESTRING (5 10,0 5)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<41>()
{
doLineClipTest(
"POLYGON ((0 10,10 5,0 5,0 10))",
//"LINESTRING (0 10,10 5,0 5)",
"MULTILINESTRING ((0 10, 10 5), (0 5, 10 5))", // overlay-op result
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<42>()
{
doLineClipTest(
"POLYGON ((0 10,10 0,0 5,0 10))",
//"LINESTRING (0 10,10 0,0 5)",
"MULTILINESTRING ((0 10, 10 0), (0 5, 10 0))", // overlay-op result
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<43>()
{
doLineClipTest(
"POLYGON ((0 10,5 0,0 5,0 10))",
//"LINESTRING (0 10,5 0,0 5)",
"MULTILINESTRING ((0 10, 5 0), (0 5, 5 0))", // overlay-op result
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<44>()
{
doLineClipTest(
"POLYGON ((0 10,5 5,0 5,0 10))",
"LINESTRING (0 10,5 5,0 5)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<45>()
{
doLineClipTest(
"POLYGON ((0 10,7 7,3 3,0 10))",
//"POLYGON ((0 10,7 7,3 3,0 10))",
"LINESTRING (0 10, 7 7, 3 3, 0 10)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<46>()
{
doLineClipTest(
"POLYGON ((0 10,5 5,5 0,0 10))",
//"POLYGON ((0 10,5 5,5 0,0 10))",
"LINESTRING (5 0, 0 10, 5 5, 5 0)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<47>()
{
doLineClipTest(
"POLYGON ((0 10,10 5,5 0,0 10))",
//"POLYGON ((0 10,10 5,5 0,0 10))",
"MULTILINESTRING ((5 0, 0 10, 10 5), (10 5, 5 0))",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<48>()
{
doLineClipTest(
"POLYGON ((2 5,5 7,7 5,2 5))",
"POLYGON ((2 5,5 7,7 5,2 5))",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<49>()
{
doLineClipTest(
"POLYGON ((2 5,5 10,7 5,2 5))",
//"POLYGON ((2 5,5 10,7 5,2 5))",
"LINESTRING (5 10, 7 5, 2 5, 5 10)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<50>()
{
doLineClipTest(
"POLYGON ((0 5,5 10,5 5,0 5))",
//"POLYGON ((0 5,5 10,5 5,0 5))",
"LINESTRING (5 10, 5 5, 0 5, 5 10)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<51>()
{
doLineClipTest(
"POLYGON ((0 5,5 10,10 5,0 5))",
//"POLYGON ((0 5,5 10,10 5,0 5))",
"MULTILINESTRING ((10 5, 0 5, 5 10), (5 10, 10 5))",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<52>()
{
doLineClipTest(
"POLYGON ((0 5,5 7,10 5,0 5))",
//"POLYGON ((0 5,5 7,10 5,0 5))",
"LINESTRING (10 5, 0 5, 5 7, 10 5)",
Rectangle(0,0,10,10)
);
}
// No points inside, one intersection
template<> template<> void object::test<53>()
{
doLineClipTest(
"POLYGON ((-5 10,0 15,0 10,-5 10))",
//"GEOMETRYCOLLECTION EMPTY",
"POINT(0 10)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<54>()
{
doLineClipTest(
"POLYGON ((-5 10,0 5,-5 0,-5 10))",
//"GEOMETRYCOLLECTION EMPTY",
"POINT(0 5)",
Rectangle(0,0,10,10)
);
}
// No points inside, two intersections
template<> template<> void object::test<55>()
{
doLineClipTest(
"POLYGON ((-5 5,0 10,0 0,-5 5))",
//"GEOMETRYCOLLECTION EMPTY",
"LINESTRING (0 10, 0 0)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<56>()
{
doLineClipTest(
"POLYGON ((-5 5,0 10,0 5,-5 5))",
//"GEOMETRYCOLLECTION EMPTY",
"LINESTRING (0 10, 0 5)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<57>()
{
doLineClipTest(
"POLYGON ((-5 5,0 7,0 3,-5 5))",
//"GEOMETRYCOLLECTION EMPTY",
"LINESTRING (0 7,0 3)",
Rectangle(0,0,10,10)
);
}
// One point inside
template<> template<> void object::test<58>()
{
doLineClipTest(
"POLYGON ((5 5,-5 0,-5 10,5 5))",
"LINESTRING (0.0 7.5,5 5,0.0 2.5)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<59>()
{
doLineClipTest(
"POLYGON ((5 0,-5 0,-5 10,5 0))",
"LINESTRING (0 5,5 0)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<60>()
{
doLineClipTest(
"POLYGON((10 0,-10 0,-10 10,10 0))",
"LINESTRING (0 5,10 0)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<61>()
{
doLineClipTest(
"POLYGON ((5 0,-5 5,-5 10,5 0))",
"LINESTRING (0 5,5 0,0.0 2.5)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<62>()
{
doLineClipTest(
"POLYGON ((10 5,-10 0,-10 10,10 5))",
"LINESTRING (0.0 7.5,10 5,0.0 2.5)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<63>()
{
doLineClipTest(
"POLYGON ((10 10,-10 0,-10 5,10 10))",
"LINESTRING (0.0 7.5,10 10,0 5)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<64>()
{
doLineClipTest(
"POLYGON ((5 5,-5 -5,-5 15,5 5))",
"LINESTRING (0 10,5 5,0 0)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<65>()
{
doLineClipTest(
"POLYGON ((10 5,-10 -5,-10 15,10 5))",
"LINESTRING (0 10,10 5,0 0)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<66>()
{
doLineClipTest(
"POLYGON ((5 0,-5 0,-5 20,5 0))",
"LINESTRING (0 10,5 0)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<67>()
{
doLineClipTest(
"POLYGON ((10 0,-10 0,-10 20,10 0))",
"LINESTRING (0 10,10 0)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<68>()
{
doLineClipTest(
"POLYGON ((5 5,-10 5,0 15,5 5))",
"LINESTRING (2.5 10.0,5 5,0 5)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<69>()
{
doLineClipTest(
"POLYGON ((5 5,-5 -5,0 15,5 5))",
"LINESTRING (2.5 10.0,5 5,0 0)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<70>()
{
doLineClipTest(
"POLYGON ((5 5,-15 -20,-15 30,5 5))",
"LINESTRING (1 10,5 5,1 0)",
Rectangle(0,0,10,10)
);
}
// Two points inside
template<> template<> void object::test<71>()
{
doLineClipTest(
"POLYGON ((5 7,5 3,-5 5,5 7))",
"LINESTRING (0 6,5 7,5 3,0 4)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<72>()
{
doLineClipTest(
"POLYGON ((5 7,5 3,-5 13,5 7))",
"LINESTRING (0 10,5 7,5 3,0 8)",
Rectangle(0,0,10,10)
);
}
template<> template<> void object::test<73>()
{
doLineClipTest(
"POLYGON ((6 6,4 4,-4 14,6 6))",
//"LINESTRING (1.0 10.0,6 6,4 4,0 9)",
"LINESTRING (0 9, 4 4, 6 6, 1.0 10.0)",
Rectangle(0,0,10,10), 1e-12
);
}
// Polygon with hole which surrounds the rectangle
template<> template<> void object::test<74>()
{
doLineClipTest(
"POLYGON ((-2 -2,-2 12,12 12,12 -2,-2 -2),(-1 -1,11 -1,11 11,-1 11,-1 -1))",
"GEOMETRYCOLLECTION EMPTY",
Rectangle(0,0,10,10)
);
}
// Polygon surrounding the rect, but with a hole inside the rect
template<> template<> void object::test<75>()
{
doLineClipTest(
"POLYGON ((-2 -2,-2 12,12 12,12 -2,-2 -2),(1 1,9 1,9 9,1 9,1 1))",
"POLYGON ((1 1,9 1,9 9,1 9,1 1))",
Rectangle(0,0,10,10)
);
}
// inside
template<> template<> void object::test<76>()
{
doClipTest(
"LINESTRING (1 1,1 9,9 9,9 1)",
"LINESTRING (1 1,1 9,9 9,9 1)",
Rectangle(0,0,10,10)
);
}
// outside
template<> template<> void object::test<77>()
{
doClipTest(
"LINESTRING (-1 -9,-1 11,9 11)",
"GEOMETRYCOLLECTION EMPTY",
Rectangle(0,0,10,10)
);
}
// go in from left
template<> template<> void object::test<78>()
{
doClipTest(
"LINESTRING (-1 5,5 5,9 9)",
"LINESTRING (0 5,5 5,9 9)",
Rectangle(0,0,10,10)
);
}
// go out from right
template<> template<> void object::test<79>()
{
doClipTest(
"LINESTRING (5 5,8 5,12 5)",
"LINESTRING (5 5,8 5,10 5)",
Rectangle(0,0,10,10)
);
}
// go in and out
template<> template<> void object::test<80>()
{
doClipTest(
"LINESTRING (5 -1,5 5,1 2,-3 2,1 6)",
"MULTILINESTRING ((5 0,5 5,1 2,0 2),(0 5,1 6))",
Rectangle(0,0,10,10)
);
}
// go along left edge
template<> template<> void object::test<81>()
{
doClipTest(
"LINESTRING (0 3,0 5,0 7)",
//"GEOMETRYCOLLECTION EMPTY",
"MULTILINESTRING ((0 5, 0 7), (0 3, 0 5))", // overlay-op result
Rectangle(0,0,10,10)
);
}
// go out from left edge
template<> template<> void object::test<82>()
{
doClipTest(
"LINESTRING (0 3,0 5,-1 7)",
//"GEOMETRYCOLLECTION EMPTY",
"LINESTRING (0 3,0 5)",
Rectangle(0,0,10,10)
);
}
// go in from left edge
template<> template<> void object::test<83>()
{
doClipTest(
"LINESTRING (0 3,0 5,2 7)",
//"LINESTRING (0 5,2 7)",
"MULTILINESTRING ((0 5, 2 7), (0 3, 0 5))",
Rectangle(0,0,10,10)
);
}
// triangle corner at bottom left corner
template<> template<> void object::test<84>()
{
doClipTest(
"LINESTRING (2 1,0 0,1 2)",
//"LINESTRING (2 1,0 0,1 2)",
"MULTILINESTRING ((0 0, 2 1), (0 0, 1 2))",
Rectangle(0,0,10,10)
);
}
// go from in to edge and back in
template<> template<> void object::test<85>()
{
doClipTest(
"LINESTRING (3 3,0 3,0 5,2 7)",
//"MULTILINESTRING ((3 3,0 3),(0 5,2 7))",
"MULTILINESTRING ((0 5, 2 7), (0 3, 3 3), (0 3, 0 5))", // overlay-op result
Rectangle(0,0,10,10)
);
}
// go from in to edge and then straight out
template<> template<> void object::test<86>()
{
doClipTest(
"LINESTRING (5 5,10 5,20 5)",
"LINESTRING (5 5,10 5)",
Rectangle(0,0,10,10)
);
}
// triangle corner at left edge