152 lines
4.8 KiB
C++
152 lines
4.8 KiB
C++
#include "catch.hpp"
|
|
|
|
#include <mapnik/geometry.hpp>
|
|
#include <mapnik/geometry_envelope.hpp>
|
|
|
|
namespace {
|
|
|
|
template <typename T>
|
|
void envelope_test()
|
|
{
|
|
using namespace mapnik::geometry;
|
|
using coord_type = T;
|
|
|
|
{
|
|
geometry<coord_type> geom(point<coord_type>(1,2));
|
|
mapnik::box2d<coord_type> bbox = mapnik::geometry::envelope(geom);
|
|
REQUIRE( bbox.minx() == 1 );
|
|
REQUIRE( bbox.miny() == 2 );
|
|
REQUIRE( bbox.maxx() == 1 );
|
|
REQUIRE( bbox.maxy() == 2 );
|
|
}
|
|
{
|
|
// Test empty geom
|
|
geometry<coord_type> geom = mapnik::geometry::geometry_empty<coord_type>();
|
|
mapnik::box2d<coord_type> bbox = mapnik::geometry::envelope(geom);
|
|
REQUIRE_FALSE( bbox.valid() );
|
|
}
|
|
{
|
|
line_string<coord_type> line;
|
|
line.emplace_back(0,0);
|
|
line.emplace_back(1,1);
|
|
line.emplace_back(2,2);
|
|
geometry<coord_type> geom(line);
|
|
mapnik::box2d<coord_type> bbox = mapnik::geometry::envelope(geom);
|
|
REQUIRE( bbox.minx() == 0 );
|
|
REQUIRE( bbox.miny() == 0 );
|
|
REQUIRE( bbox.maxx() == 2 );
|
|
REQUIRE( bbox.maxy() == 2 );
|
|
}
|
|
{
|
|
line_string<coord_type> line;
|
|
line.emplace_back(0,0);
|
|
line.emplace_back(1,1);
|
|
line.emplace_back(2,2);
|
|
line_string<coord_type> line2;
|
|
line2.emplace_back(0,0);
|
|
line2.emplace_back(-1,-1);
|
|
line2.emplace_back(-2,-2);
|
|
multi_line_string<coord_type> multi_line;
|
|
multi_line.emplace_back(std::move(line));
|
|
multi_line.emplace_back(std::move(line2));
|
|
geometry<coord_type> geom(multi_line);
|
|
mapnik::box2d<coord_type> bbox = mapnik::geometry::envelope(geom);
|
|
REQUIRE( bbox.minx() == -2 );
|
|
REQUIRE( bbox.miny() == -2 );
|
|
REQUIRE( bbox.maxx() == 2 );
|
|
REQUIRE( bbox.maxy() == 2 );
|
|
}
|
|
{
|
|
polygon<coord_type> poly;
|
|
linear_ring<coord_type> ring;
|
|
ring.emplace_back(0,0);
|
|
ring.emplace_back(-10,0);
|
|
ring.emplace_back(-10,10);
|
|
ring.emplace_back(0,10);
|
|
ring.emplace_back(0,0);
|
|
poly.push_back(std::move(ring));
|
|
geometry<coord_type> geom(poly);
|
|
mapnik::box2d<coord_type> bbox = mapnik::geometry::envelope(geom);
|
|
REQUIRE( bbox.minx() == -10 );
|
|
REQUIRE( bbox.miny() == 0 );
|
|
REQUIRE( bbox.maxx() == 0 );
|
|
REQUIRE( bbox.maxy() == 10 );
|
|
|
|
multi_polygon<coord_type> mp;
|
|
mp.push_back(poly);
|
|
geometry<coord_type> geom_mp(mp);
|
|
bbox = mapnik::geometry::envelope(geom_mp);
|
|
REQUIRE( bbox.minx() == -10 );
|
|
REQUIRE( bbox.miny() == 0 );
|
|
REQUIRE( bbox.maxx() == 0 );
|
|
REQUIRE( bbox.maxy() == 10 );
|
|
|
|
geometry_collection<coord_type> gc;
|
|
bbox = mapnik::geometry::envelope(gc);
|
|
REQUIRE_FALSE( bbox.valid() );
|
|
gc.push_back(geom_mp);
|
|
bbox = mapnik::geometry::envelope(gc);
|
|
REQUIRE( bbox.minx() == -10 );
|
|
REQUIRE( bbox.miny() == 0 );
|
|
REQUIRE( bbox.maxx() == 0 );
|
|
REQUIRE( bbox.maxy() == 10 );
|
|
gc.emplace_back(point<coord_type>(-50,-50));
|
|
bbox = mapnik::geometry::envelope(gc);
|
|
REQUIRE( bbox.minx() == -50 );
|
|
REQUIRE( bbox.miny() == -50 );
|
|
REQUIRE( bbox.maxx() == 0 );
|
|
REQUIRE( bbox.maxy() == 10 );
|
|
}
|
|
|
|
{
|
|
// polygon with hole
|
|
polygon<coord_type> poly;
|
|
linear_ring<coord_type> ring;
|
|
ring.emplace_back(0,0);
|
|
ring.emplace_back(-10,0);
|
|
ring.emplace_back(-10,10);
|
|
ring.emplace_back(0,10);
|
|
ring.emplace_back(0,0);
|
|
poly.push_back(std::move(ring));
|
|
linear_ring<coord_type> hole;
|
|
hole.emplace_back(-7,7);
|
|
hole.emplace_back(-7,3);
|
|
hole.emplace_back(-3,3);
|
|
hole.emplace_back(-3,7);
|
|
hole.emplace_back(-7,7);
|
|
poly.push_back(std::move(hole));
|
|
geometry<coord_type> geom(poly);
|
|
mapnik::box2d<coord_type> bbox = mapnik::geometry::envelope(poly);
|
|
REQUIRE( bbox.minx() == -10 );
|
|
REQUIRE( bbox.miny() == 0 );
|
|
REQUIRE( bbox.maxx() == 0 );
|
|
REQUIRE( bbox.maxy() == 10 );
|
|
// add another hole inside the first hole
|
|
// which should be considered a hit
|
|
linear_ring<coord_type> fill;
|
|
fill.emplace_back(-6,4);
|
|
fill.emplace_back(-6,6);
|
|
fill.emplace_back(-4,6);
|
|
fill.emplace_back(-4,4);
|
|
fill.emplace_back(-6,4);
|
|
poly.push_back(std::move(fill));
|
|
bbox = mapnik::geometry::envelope(poly);
|
|
REQUIRE( bbox.minx() == -10 );
|
|
REQUIRE( bbox.miny() == 0 );
|
|
REQUIRE( bbox.maxx() == 0 );
|
|
REQUIRE( bbox.maxy() == 10 );
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
TEST_CASE("geometry ops - envelope") {
|
|
|
|
SECTION("envelope_test")
|
|
{
|
|
envelope_test<int>();
|
|
envelope_test<double>();
|
|
envelope_test<float>();
|
|
}
|
|
|
|
}
|