#include "CubicIntersection.h" #include "Intersection_Tests.h" const Quadratic quadratics[] = { {{0, 0}, {1, 0}, {1, 1}}, }; const size_t quadratics_count = sizeof(quadratics) / sizeof(quadratics[0]); int firstQuadraticCoincidenceTest = 0; void QuadraticCoincidence_Test() { // split large quadratic // compare original, parts, to see if the are coincident for (size_t index = firstQuadraticCoincidenceTest; index < quadratics_count; ++index) { const Quadratic& test = quadratics[index]; QuadraticPair split; chop_at(test, split, 0.5); Quadratic midThird; sub_divide(test, 1.0/3, 2.0/3, midThird); const Quadratic* quads[] = { &test, &midThird, &split.first(), &split.second() }; size_t quadsCount = sizeof(quads) / sizeof(quads[0]); for (size_t one = 0; one < quadsCount; ++one) { for (size_t two = 0; two < quadsCount; ++two) { for (size_t inner = 0; inner < 3; inner += 2) { if (!point_on_parameterized_curve(*quads[one], (*quads[two])[inner])) { printf("%s %zu [%zu,%zu] %zu parameterization failed\n", __FUNCTION__, index, one, two, inner); } } if (!implicit_matches(*quads[one], *quads[two])) { printf("%s %zu [%zu,%zu] coincidence failed\n", __FUNCTION__, index, one, two); } } } } }