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//
// Ported from JTS junit/algorithm/RobustLineIntersectorTest.java rev. 1.1
#include <tut/tut.hpp>
// geos
#include <geos/io/WKBReader.h>
#include <geos/io/WKTReader.h>
#include <geos/algorithm/LineIntersector.h>
#include <geos/algorithm/PointLocation.h>
#include <geos/algorithm/Orientation.h>
#include <geos/geom/PrecisionModel.h>
#include <geos/geom/GeometryFactory.h>
#include <geos/geom/Geometry.h> // required for use in unique_ptr
#include <geos/geom/LineString.h>
#include <geos/geom/Coordinate.h>
#include <geos/geom/Point.h>
#include <geos/geom/CoordinateSequence.h>
#include <geos/util.h>
// std
#include <sstream>
#include <string>
#include <memory>
using namespace geos::geom; //
using geos::algorithm::LineIntersector;
using geos::algorithm::PointLocation;
using geos::algorithm::Orientation;
namespace tut {
//
// Test Group
//
struct test_robustlineintersector_data {
typedef std::unique_ptr<Geometry> GeomPtr;
LineIntersector i;
};
typedef test_group<test_robustlineintersector_data> group;
typedef group::object object;
group test_robustlineintersector_group(
"geos::algorithm::RobustLineIntersector");
//
// Test Cases
//
// 1 - test2Lines
template<>
template<>
void object::test<1>
()
{
CoordinateXY p1(10, 10);
CoordinateXY p2(20, 20);
CoordinateXY q1(20, 10);
CoordinateXY q2(10, 20);
Coordinate x(15, 15);
i.computeIntersection(p1, p2, q1, q2);
ensure_equals(i.getIntersectionNum(), (unsigned int)LineIntersector::POINT_INTERSECTION);
ensure_equals(i.getIntersectionNum(), 1UL);
ensure_equals(i.getIntersection(0), x);
ensure("isProper", i.isProper());
ensure("hasIntersection", i.hasIntersection());
}
// 2 - testCollinear1
template<>
template<>
void object::test<2>
()
{
Coordinate p1(10, 10);
Coordinate p2(20, 10);
Coordinate q1(22, 10);
Coordinate q2(30, 10);
i.computeIntersection(p1, p2, q1, q2);
ensure_equals(i.getIntersectionNum(), LineIntersector::NO_INTERSECTION);
ensure_equals(i.getIntersectionNum(), 0UL);
ensure("!isProper", !i.isProper());
ensure("!hasIntersection", !i.hasIntersection());
}
// 3 - testCollinear2
template<>
template<>
void object::test<3>
()
{
Coordinate p1(10, 10);
Coordinate p2(20, 10);
Coordinate q1(20, 10);
Coordinate q2(30, 10);
i.computeIntersection(p1, p2, q1, q2);
ensure_equals(i.getIntersectionNum(), LineIntersector::POINT_INTERSECTION);
ensure_equals(i.getIntersectionNum(), 1UL);
ensure("!isProper", !i.isProper());
ensure("hasIntersection", i.hasIntersection());
}
// 4 - testCollinear3
template<>
template<>
void object::test<4>
()
{
Coordinate p1(10, 10);
Coordinate p2(20, 10);
Coordinate q1(15, 10);
Coordinate q2(30, 10);
i.computeIntersection(p1, p2, q1, q2);
ensure_equals(i.getIntersectionNum(), LineIntersector::COLLINEAR_INTERSECTION);
ensure_equals(i.getIntersectionNum(), 2UL);
ensure("!isProper", !i.isProper());
ensure("hasIntersection", i.hasIntersection());
}
// 5 - testCollinear4
template<>
template<>
void object::test<5>
()
{
Coordinate p1(10, 10);
Coordinate p2(20, 10);
Coordinate q1(10, 10);
Coordinate q2(30, 10);
i.computeIntersection(p1, p2, q1, q2);
ensure_equals(i.getIntersectionNum(), LineIntersector::COLLINEAR_INTERSECTION);
ensure_equals(i.getIntersectionNum(), 2UL);
ensure("!isProper", !i.isProper());
ensure("hasIntersection", i.hasIntersection());
}
// 6 - testEndpointIntersection
template<>
template<>
void object::test<6>
()
{
i.computeIntersection(Coordinate(100, 100), Coordinate(10, 100),
Coordinate(100, 10), Coordinate(100, 100));
ensure("hasIntersection", i.hasIntersection());
ensure_equals(i.getIntersectionNum(), 1UL);
}
// 7 - testEndpointIntersection2
template<>
template<>
void object::test<7>
()
{
i.computeIntersection(Coordinate(190, 50), Coordinate(120, 100),
Coordinate(120, 100), Coordinate(50, 150));
ensure("hasIntersection", i.hasIntersection());
ensure_equals(i.getIntersectionNum(), 1UL);
ensure_equals(i.getIntersection(1), Coordinate(120, 100));
}
// 8 - testOverlap
template<>
template<>
void object::test<8>
()
{
i.computeIntersection(Coordinate(180, 200), Coordinate(160, 180),
Coordinate(220, 240), Coordinate(140, 160));
ensure("hasIntersection", i.hasIntersection());
ensure_equals(i.getIntersectionNum(), 2UL);
}
// 9 - testIsProper1
template<>
template<>
void object::test<9>
()
{
i.computeIntersection(Coordinate(30, 10), Coordinate(30, 30),
Coordinate(10, 10), Coordinate(90, 11));
ensure("hasIntersection", i.hasIntersection());
ensure_equals(i.getIntersectionNum(), 1UL);
ensure("isProper", i.isProper());
}
// 10 - testIsProper2
template<>
template<>
void object::test<10>
()
{
i.computeIntersection(Coordinate(10, 30), Coordinate(10, 0),
Coordinate(11, 90), Coordinate(10, 10));
ensure("hasIntersection", i.hasIntersection());
ensure_equals(i.getIntersectionNum(), 1UL);
ensure("!isProper", !i.isProper());
}
// 11 - testIsCCW
template<>
template<>
void object::test<11>
()
{
ensure_equals(Orientation::index(
Coordinate(-123456789, -40),
Coordinate(0, 0),
Coordinate(381039468754763.0, 123456789)), 1);
}
// 12 - testIsCCW2
template<>
template<>
void object::test<12>
()
{
ensure_equals(Orientation::index(
Coordinate(10, 10),
Coordinate(20, 20),
Coordinate(0, 0)), 0);
}
// 13 - testA
template<>
template<>
void object::test<13>
()
{
Coordinate p1(-123456789, -40);
Coordinate p2(381039468754763.0, 123456789);
Coordinate q(0, 0);
using geos::geom::CoordinateSequence;
using geos::geom::GeometryFactory;
using geos::geom::LineString;
GeometryFactory::Ptr factory = GeometryFactory::create();
auto cs = geos::detail::make_unique<CoordinateSequence>();
cs->add(p1);
cs->add(p2);
ensure(!PointLocation::isOnLine(q, cs.get()));
ensure_equals(Orientation::index(p1, p2, q), -1);
auto l = factory->createLineString(std::move(cs));
GeomPtr p(factory->createPoint(q));
ensure(!l->intersects(p.get()));
}
// Test intersects: point on segment with FLOAT PM
// X coordinate of 3rd and 4th vertices of the line are not
// float-point exact with X coordinate of the point.
// The X values differ after 14th decimal place:
// POINT (-23.1094689600055080 50.5195368635957180)
// --------------------^^^^^^^------------^^^^^^^^
// LINESTRING 3rd and 4th points
// -23.1094689600055150 50.5223376452201340,
// -23.1094689600055010 50.5169177629559480,
// --------------------^^^^^^^------------^^^^^^^^
// So, in float-point precision model, the point does DOES NOT intersect the segment.
template<>
template<>
void object::test<14>
()
{
geos::io::WKBReader reader;
// POINT located between 3rd and 4th vertex of LINESTRING
// POINT(-23.1094689600055080 50.5195368635957180)
std::string point("01010000009a266328061c37c0e21a172f80424940");
// LINESTRING(-23.122057005539 50.5201976774794,-23.1153476966995 50.5133404815199,-23.1094689600055150 50.5223376452201340,-23.1094689600055010 50.5169177629559480,-23.0961967920942 50.5330464848094,-23.0887991006034 50.5258515213185,-23.0852302622362 50.5264582238409)
std::string
line("0102000000070000009909bf203f1f37c05c1d66d6954249404afe386d871d37c0a7eb1124b54149409c266328061c37c056d8bff5db42494098266328061c37c0034f7b5c2a42494060065c5aa01837c08ac001de3a4449408401b189bb1637c0b04e471a4f43494014ef84a6d11537c0b20dabfb62434940");
std::stringstream sPoint(point);
GeomPtr gPoint(reader.readHEX(sPoint));
std::stringstream sLine(line);
GeomPtr gLine(reader.readHEX(sLine));
int ret = gLine->intersects(gPoint.get());
ensure_equals(ret, 0);
}
// Test intersects: point on segment with FIXED PM
// X coordinate of 3rd and 4th vertices of the line are not
// float-point exact with X coordinate of the point.
// The X values differ after 14th decimal place:
// POINT (-23.1094689600055080 50.5195368635957180)
// --------------------^^^^^^^------------^^^^^^^^
// LINESTRING 3rd and 4th points
// -23.1094689600055150 50.5223376452201340,
// -23.1094689600055010 50.5169177629559480,
// --------------------^^^^^^^------------^^^^^^^^
// So, if float-point values are trimmed up to 14 decimal digits, the point DOES intersect the segment.
template<>
template<>
void object::test<15>
()
{
using geos::geom::GeometryFactory;
geos::geom::PrecisionModel pm(1e+13);
GeometryFactory::Ptr factory = GeometryFactory::create(&pm);
geos::io::WKBReader reader(*factory);
// POINT located between 3rd and 4th vertex of LINESTRING
// POINT(-23.1094689600055080 50.5195368635957180)
std::string point("01010000009a266328061c37c0e21a172f80424940");
// LINESTRING(-23.122057005539 50.5201976774794,-23.1153476966995 50.5133404815199,-23.1094689600055150 50.5223376452201340,-23.1094689600055010 50.5169177629559480,-23.0961967920942 50.5330464848094,-23.0887991006034 50.5258515213185,-23.0852302622362 50.5264582238409)
std::string
line("0102000000070000009909bf203f1f37c05c1d66d6954249404afe386d871d37c0a7eb1124b54149409c266328061c37c056d8bff5db42494098266328061c37c0034f7b5c2a42494060065c5aa01837c08ac001de3a4449408401b189bb1637c0b04e471a4f43494014ef84a6d11537c0b20dabfb62434940");
std::stringstream sPoint(point);
GeomPtr gPoint(reader.readHEX(sPoint));
std::stringstream sLine(line);
GeomPtr gLine(reader.readHEX(sLine));
int ret = gLine->intersects(gPoint.get());
ensure_equals(ret, 1);
}
} // namespace tut
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