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5b89cb9 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | #include <test_common.h>
#include <igl/predicates/predicates.h>
#include <limits>
TEST_CASE("predicates", "[igl][predicates]") {
using namespace igl::predicates;
using Scalar = double;
igl::predicates::exactinit();
SECTION("2D") {
using Point = Eigen::Matrix<Scalar, 2, 1>;
Point a(2,1),b(2,1),c(2,1),d(2,1),e(2,1),f(2,1);
a << 0.0, 0.0;
b << 1.0, 0.0;
c << 1.0, 1.0;
d << 2.0, 0.0;
e << 0.0, 1.0;
f << 0.5, 0.5;
REQUIRE(orient2d(a, b, c) == Orientation::POSITIVE);
REQUIRE(orient2d(a, c, b) == Orientation::NEGATIVE);
REQUIRE(orient2d(a, b, b) == Orientation::COLLINEAR);
REQUIRE(orient2d(a, a, a) == Orientation::COLLINEAR);
REQUIRE(orient2d(a, b, d) == Orientation::COLLINEAR);
REQUIRE(orient2d(a, f, c) == Orientation::COLLINEAR);
REQUIRE(incircle(a,b,c,e) == Orientation::COCIRCULAR);
REQUIRE(incircle(a,b,c,a) == Orientation::COCIRCULAR);
REQUIRE(incircle(a,b,c,d) == Orientation::OUTSIDE);
REQUIRE(incircle(a,b,c,f) == Orientation::INSIDE);
}
SECTION("3D") {
using Point = Eigen::Matrix<Scalar, 3, 1>;
Point a(3,1),b(3,1),c(3,1),d(3,1),e(3,1),f(3,1);
a << 0.0, 0.0, 0.0;
b << 1.0, 0.0, 0.0;
c << 0.0, 1.0, 0.0;
d << 0.0, 0.0, 1.0;
e << 1.0, 1.0, 1.0;
f << std::numeric_limits<Scalar>::epsilon(), 0.0, 0.0;
REQUIRE(orient3d(a, b, c, d) == Orientation::NEGATIVE);
REQUIRE(orient3d(a, b, d, c) == Orientation::POSITIVE);
REQUIRE(orient3d(a, b, d, d) == Orientation::COPLANAR);
REQUIRE(orient3d(a, a, a, a) == Orientation::COPLANAR);
REQUIRE(orient3d(a, b, f, c) == Orientation::COPLANAR);
REQUIRE(insphere(a, b, c, d, e) == Orientation::COSPHERICAL);
REQUIRE(insphere(a, b, d, e, c) == Orientation::COSPHERICAL);
REQUIRE(insphere(b, c, e, d, ((a+b)*0.5).eval()) == Orientation::INSIDE);
REQUIRE(insphere(b, c, e, d, (-f).eval()) == Orientation::OUTSIDE);
REQUIRE(insphere(f, b, d, c, e) == Orientation::INSIDE);
}
}
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