c682590538
git-svn-id: http://skia.googlecode.com/svn/trunk@3141 2bbb7eff-a529-9590-31e7-b0007b416f81
47 lines
1.8 KiB
C++
47 lines
1.8 KiB
C++
#include "CurveIntersection.h"
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#include "Intersection_Tests.h"
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#include "Intersections.h"
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#include "QuadraticIntersection_TestData.h"
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#include "TestUtilities.h"
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const int firstQuadIntersectionTest = 9;
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void QuadraticIntersection_Test() {
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for (size_t index = firstQuadIntersectionTest; index < quadraticTests_count; ++index) {
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const Quadratic& quad1 = quadraticTests[index][0];
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const Quadratic& quad2 = quadraticTests[index][1];
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Quadratic reduce1, reduce2;
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int order1 = reduceOrder(quad1, reduce1);
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int order2 = reduceOrder(quad2, reduce2);
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if (order1 < 3) {
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printf("[%d] quad1 order=%d\n", (int) index, order1);
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}
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if (order2 < 3) {
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printf("[%d] quad2 order=%d\n", (int) index, order2);
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}
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if (order1 == 3 && order2 == 3) {
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Intersections intersections;
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intersect(reduce1, reduce2, intersections);
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if (intersections.intersected()) {
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for (int pt = 0; pt < intersections.used(); ++pt) {
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double tt1 = intersections.fT[0][pt];
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double tx1, ty1;
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xy_at_t(quad1, tt1, tx1, ty1);
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double tt2 = intersections.fT[1][pt];
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double tx2, ty2;
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xy_at_t(quad2, tt2, tx2, ty2);
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if (!approximately_equal(tx1, tx2)) {
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printf("%s [%d,%d] x!= t1=%g (%g,%g) t2=%g (%g,%g)\n",
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__FUNCTION__, (int)index, pt, tt1, tx1, ty1, tt2, tx2, ty2);
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}
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if (!approximately_equal(ty1, ty2)) {
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printf("%s [%d,%d] y!= t1=%g (%g,%g) t2=%g (%g,%g)\n",
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__FUNCTION__, (int)index, pt, tt1, tx1, ty1, tt2, tx2, ty2);
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}
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}
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}
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}
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}
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}
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