42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
#include "catch.hpp"
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#include <mapnik/geometry/polylabel.hpp>
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TEST_CASE("polylabel")
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{
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SECTION("empty polygon")
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{
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mapnik::geometry::polygon<double> poly;
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mapnik::geometry::point<double> pt;
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CHECK(!mapnik::geometry::polylabel(poly, 1.0, pt));
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}
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SECTION("empty exterior ring")
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{
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mapnik::geometry::polygon<double> poly;
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poly.emplace_back();
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mapnik::geometry::point<double> pt;
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CHECK(!mapnik::geometry::polylabel(poly, 1.0, pt));
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}
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SECTION("polylabel with a square")
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{
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mapnik::geometry::polygon<double> poly;
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poly.emplace_back();
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auto& exterior_ring = poly.front();
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exterior_ring.emplace_back(-1, -1);
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exterior_ring.emplace_back(1, -1);
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exterior_ring.emplace_back(1, 1);
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exterior_ring.emplace_back(-1, 1);
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exterior_ring.emplace_back(-1, -1);
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mapnik::geometry::point<double> pt{-3, -3};
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CHECK(mapnik::geometry::polylabel(poly, 1.0, pt));
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CHECK(pt.x == Approx(0));
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CHECK(pt.y == Approx(0));
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}
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}
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