mapnik/tests/cxx/geometry_hit_test.cpp
2015-04-09 15:22:51 -05:00

108 lines
3.2 KiB
C++

#include "catch.hpp"
#include <mapnik/geometry.hpp>
#include <mapnik/hit_test_filter.hpp>
#include <mapnik/geometry_correct.hpp>
TEST_CASE("geometry ops") {
SECTION("hit_test_filter - double") {
using namespace mapnik::geometry;
{
geometry<double> geom(point<double>(0,0));
REQUIRE( mapnik::hit_test(geom,0,0,0) );
}
{
geometry<double> geom(point<double>(0,0));
REQUIRE( mapnik::hit_test(geom,1,0,1) );
}
{
geometry<double> geom(point<double>(0,0));
REQUIRE( mapnik::hit_test(geom,0,1,1) );
}
{
geometry<double> geom(point<double>(0,0));
REQUIRE( mapnik::hit_test(geom,1,1,1.5) );
}
{
line_string<double> line;
line.add_coord(0,0);
line.add_coord(1,1);
line.add_coord(2,2);
geometry<double> geom(line);
REQUIRE( mapnik::hit_test(geom,0,0,1.5) );
}
{
line_string<double> line;
line.add_coord(0,0);
line.add_coord(1,1);
line.add_coord(2,2);
multi_line_string<double> multi_line;
multi_line.emplace_back(std::move(line));
geometry<double> geom(multi_line);
REQUIRE( mapnik::hit_test(geom,0,0,1.5) );
}
{
polygon<double> poly;
linear_ring<double> ring;
ring.add_coord(0,0);
ring.add_coord(-10,0);
ring.add_coord(-10,10);
ring.add_coord(0,10);
ring.add_coord(0,0);
poly.set_exterior_ring(std::move(ring));
geometry<double> geom(poly);
REQUIRE( mapnik::hit_test(geom,-5,5,0) );
multi_polygon<double> mp;
mp.push_back(poly);
geometry<double> geom_mp(mp);
REQUIRE( mapnik::hit_test(geom_mp,-5,5,0) );
correct(geom);
REQUIRE( mapnik::hit_test(geom,-5,5,0) );
correct(geom_mp);
REQUIRE( mapnik::hit_test(geom_mp,-5,5,0) );
geometry_collection<double> gc;
REQUIRE( !mapnik::hit_test(geometry<double>(gc),-5,5,0) );
gc.push_back(geom_mp);
REQUIRE( mapnik::hit_test(geometry<double>(gc),-5,5,0) );
REQUIRE( !mapnik::hit_test(geometry<double>(gc),-50,-50,0) );
gc.emplace_back(point<double>(-50,-50));
REQUIRE( mapnik::hit_test(geometry<double>(gc),-50,-50,0) );
}
{
// polygon with hole
polygon<double> poly;
linear_ring<double> ring;
ring.add_coord(0,0);
ring.add_coord(-10,0);
ring.add_coord(-10,10);
ring.add_coord(0,10);
ring.add_coord(0,0);
poly.set_exterior_ring(std::move(ring));
linear_ring<double> hole;
hole.add_coord(-7,7);
hole.add_coord(-7,3);
hole.add_coord(-3,3);
hole.add_coord(-3,7);
hole.add_coord(-7,7);
poly.add_hole(std::move(hole));
geometry<double> geom(poly);
REQUIRE( !mapnik::hit_test(geom,-5,5,0) );
// add another hole inside the first hole
// which should be considered a hit
linear_ring<double> fill;
fill.add_coord(-6,4);
fill.add_coord(-6,6);
fill.add_coord(-4,6);
fill.add_coord(-4,4);
fill.add_coord(-6,4);
poly.add_hole(std::move(fill));
REQUIRE( mapnik::hit_test(geometry<double>(poly),-5,5,0) );
}
}
}