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add more tests

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This commit is contained in:
Artem Pavlenko 2017-09-22 13:20:23 +02:00
parent 143d1e57cf
commit f210699884
1 changed files with 63 additions and 22 deletions
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85
test/unit/geometry/closest_point.cpp
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@ -4,43 +4,84 @@
TEST_CASE("geometry closest point") {
SECTION("geometry_empty") {
mapnik::geometry::point<double> pt(0, 0);
mapnik::geometry::geometry_empty empty;
auto result = mapnik::geometry::closest_point(empty, pt);
REQUIRE(result.x == 0.0);
REQUIRE(result.y == 0.0);
REQUIRE(result.distance == -1.0);
}
SECTION("point") {
mapnik::geometry::point<double> pt(0, 0);
mapnik::geometry::point<double> geom(3.0, 4.0);
auto result = mapnik::geometry::closest_point(pt, geom);
REQUIRE(result.closest_point == geom);
auto result = mapnik::geometry::closest_point(geom, pt);
REQUIRE(result.x == geom.x);
REQUIRE(result.y == geom.y);
REQUIRE(result.distance == 5.0);
}
SECTION("linestring") {
//mapnik::geometry::line_string<double> line;
//line.emplace_back(0, 0);
//line.emplace_back(25, 25);
//line.emplace_back(50, 50);
//mapnik::geometry::point<double> centroid;
//REQUIRE(mapnik::geometry::centroid(line, centroid));
//REQUIRE(centroid.x == 25);
//REQUIRE(centroid.y == 25);
mapnik::geometry::line_string<double> line;
line.emplace_back(0, 0);
line.emplace_back(0, 100);
line.emplace_back(100, 100);
line.emplace_back(100, 0);
mapnik::geometry::point<double> pt(50, 50);
auto result = mapnik::geometry::closest_point(line, pt);
REQUIRE(result.x == 0.0);
REQUIRE(result.y == 50.0);
REQUIRE(result.distance == 50.0);
}
SECTION("polygon") {
//mapnik::geometry::polygon<double> poly;
//mapnik::geometry::linear_ring<double> ring;
//ring.emplace_back(0, 0);
//ring.emplace_back(1, 0);
//ring.emplace_back(1, 1);
//ring.emplace_back(0, 1);
//ring.emplace_back(0, 0);
//poly.push_back(std::move(ring));
mapnik::geometry::polygon<double> poly;
mapnik::geometry::linear_ring<double> ring;
ring.emplace_back(0, 0);
ring.emplace_back(1, 0);
ring.emplace_back(1, 1);
ring.emplace_back(0, 1);
ring.emplace_back(0, 0);
poly.push_back(std::move(ring));
//mapnik::geometry::point<double> centroid;
//REQUIRE(mapnik::geometry::centroid(poly, centroid));
///REQUIRE(centroid.x == 0.5);
//REQUIRE(centroid.y == 0.5);
{
// point inside polygon
mapnik::geometry::point<double> pt {0.5, 0.25};
auto result = mapnik::geometry::closest_point(poly, pt);
REQUIRE(result.x == 0.5);
REQUIRE(result.y == 0.25);
REQUIRE(result.distance == 0.0);
}
{
// point outside polygon
mapnik::geometry::point<double> pt {1.25, 0.5};
auto result = mapnik::geometry::closest_point(poly, pt);
REQUIRE(result.x == 1.0);
REQUIRE(result.y == 0.5);
REQUIRE(result.distance == 0.25);
}
{
// point outside polygon
mapnik::geometry::point<double> pt {4.0, 5.0};
auto result = mapnik::geometry::closest_point(poly, pt);
REQUIRE(result.x == 1.0);
REQUIRE(result.y == 1.0);
REQUIRE(result.distance == 5.0);
}
{
// point on polygon boundary
mapnik::geometry::point<double> pt {0, 0.4};
auto result = mapnik::geometry::closest_point(poly, pt);
REQUIRE(result.x == 0.0);
REQUIRE(result.y == 0.4);
REQUIRE(result.distance == 0.0);
}
}
}