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55 lines
2.1 KiB
55 lines
2.1 KiB
#include <test_common.h>
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#include <igl/predicates/predicates.h>
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#include <limits>
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TEST_CASE("predicates", "[igl][predicates]") {
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using namespace igl::predicates;
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using Scalar = double;
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igl::predicates::exactinit();
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SECTION("2D") {
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using Point = Eigen::Matrix<Scalar, 2, 1>;
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Point a(2,1),b(2,1),c(2,1),d(2,1),e(2,1),f(2,1);
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a << 0.0, 0.0;
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b << 1.0, 0.0;
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c << 1.0, 1.0;
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d << 2.0, 0.0;
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e << 0.0, 1.0;
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f << 0.5, 0.5;
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REQUIRE(orient2d(a, b, c) == Orientation::POSITIVE);
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REQUIRE(orient2d(a, c, b) == Orientation::NEGATIVE);
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REQUIRE(orient2d(a, b, b) == Orientation::COLLINEAR);
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REQUIRE(orient2d(a, a, a) == Orientation::COLLINEAR);
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REQUIRE(orient2d(a, b, d) == Orientation::COLLINEAR);
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REQUIRE(orient2d(a, f, c) == Orientation::COLLINEAR);
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REQUIRE(incircle(a,b,c,e) == Orientation::COCIRCULAR);
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REQUIRE(incircle(a,b,c,a) == Orientation::COCIRCULAR);
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REQUIRE(incircle(a,b,c,d) == Orientation::OUTSIDE);
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REQUIRE(incircle(a,b,c,f) == Orientation::INSIDE);
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}
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SECTION("3D") {
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using Point = Eigen::Matrix<Scalar, 3, 1>;
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Point a(3,1),b(3,1),c(3,1),d(3,1),e(3,1),f(3,1);
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a << 0.0, 0.0, 0.0;
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b << 1.0, 0.0, 0.0;
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c << 0.0, 1.0, 0.0;
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d << 0.0, 0.0, 1.0;
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e << 1.0, 1.0, 1.0;
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f << std::numeric_limits<Scalar>::epsilon(), 0.0, 0.0;
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REQUIRE(orient3d(a, b, c, d) == Orientation::NEGATIVE);
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REQUIRE(orient3d(a, b, d, c) == Orientation::POSITIVE);
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REQUIRE(orient3d(a, b, d, d) == Orientation::COPLANAR);
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REQUIRE(orient3d(a, a, a, a) == Orientation::COPLANAR);
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REQUIRE(orient3d(a, b, f, c) == Orientation::COPLANAR);
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REQUIRE(insphere(a, b, c, d, e) == Orientation::COSPHERICAL);
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REQUIRE(insphere(a, b, d, e, c) == Orientation::COSPHERICAL);
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REQUIRE(insphere(b, c, e, d, ((a+b)*0.5).eval()) == Orientation::INSIDE);
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REQUIRE(insphere(b, c, e, d, (-f).eval()) == Orientation::OUTSIDE);
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REQUIRE(insphere(f, b, d, c, e) == Orientation::INSIDE);
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}
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}
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