| #include "CubicIntersection.h" |
| #include "CubicIntersection_TestData.h" |
| #include "CubicIntersection_Tests.h" |
| #include "Intersections.h" |
| #include "TestUtilities.h" |
| |
| const int firstCubicIntersectionTest = 9; |
| |
| void CubicIntersection_Test() { |
| for (size_t index = firstCubicIntersectionTest; index < tests_count; ++index) { |
| const Cubic& cubic1 = tests[index][0]; |
| const Cubic& cubic2 = tests[index][1]; |
| Cubic reduce1, reduce2; |
| int order1 = reduceOrder(cubic1, reduce1, kReduceOrder_NoQuadraticsAllowed); |
| int order2 = reduceOrder(cubic2, reduce2, kReduceOrder_NoQuadraticsAllowed); |
| if (order1 < 4) { |
| printf("[%d] cubic1 order=%d\n", (int) index, order1); |
| } |
| if (order2 < 4) { |
| printf("[%d] cubic2 order=%d\n", (int) index, order2); |
| } |
| if (order1 == 4 && order2 == 4) { |
| Intersections tIntersections; |
| intersectStartT(reduce1, reduce2, tIntersections); |
| #ifdef COMPUTE_BY_CUBIC_SUBDIVISION |
| Intersections intersections; |
| intersectStart(reduce1, reduce2, intersections); |
| #endif |
| if (tIntersections.intersected()) { |
| for (int pt = 0; pt < tIntersections.used(); ++pt) { |
| #ifdef COMPUTE_BY_CUBIC_SUBDIVISION |
| double t1 = intersections.fT[0][pt]; |
| double x1, y1; |
| xy_at_t(cubic1, t1, x1, y1); |
| double t2 = intersections.fT[1][pt]; |
| double x2, y2; |
| xy_at_t(cubic2, t2, x2, y2); |
| if (!approximately_equal(x1, x2)) { |
| printf("%s [%d] (1) t1=%g (%g,%g) t2=%g (%g,%g)\n", |
| __FUNCTION__, pt, t1, x1, y1, t2, x2, y2); |
| } |
| if (!approximately_equal(y1, y2)) { |
| printf("%s [%d] (2) t1=%g (%g,%g) t2=%g (%g,%g)\n", |
| __FUNCTION__, pt, t1, x1, y1, t2, x2, y2); |
| } |
| #endif |
| double tt1 = tIntersections.fT[0][pt]; |
| double tx1, ty1; |
| xy_at_t(cubic1, tt1, tx1, ty1); |
| double tt2 = tIntersections.fT[1][pt]; |
| double tx2, ty2; |
| xy_at_t(cubic2, tt2, tx2, ty2); |
| if (!approximately_equal(tx1, tx2)) { |
| printf("%s [%d,%d] x!= t1=%g (%g,%g) t2=%g (%g,%g)\n", |
| __FUNCTION__, (int)index, pt, tt1, tx1, ty1, tt2, tx2, ty2); |
| } |
| if (!approximately_equal(ty1, ty2)) { |
| printf("%s [%d,%d] y!= t1=%g (%g,%g) t2=%g (%g,%g)\n", |
| __FUNCTION__, (int)index, pt, tt1, tx1, ty1, tt2, tx2, ty2); |
| } |
| } |
| } |
| } |
| } |
| } |