修改了一些精度问题
parent
6ca1b334bf
commit
656fa704a7
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@ -4,7 +4,7 @@ double CubicBezier::getLineValueByT(double t, bool isY) {
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vector<double> p;
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if (isY) p = vY;
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else p = vX;
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float pt = 1 - t;
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double pt = 1 - t;
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return pt * pt * pt * p[0] + 3 * t * pt * pt * p[1] + 3 * t * t * pt * p[2] + t * t * t * p[3];
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}
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@ -106,7 +106,7 @@ int CubicBezier::judgeBoundIntersection(double xy, double l, double r, bool isY)
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valueBegin = *vY.begin();
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valueEnd = *vY.rbegin();
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}
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if ((valueBegin - xy) * (valueEnd - xy) >= eps) return 0;
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if ((valueBegin - xy) * (valueEnd - xy) >= 0) return 0;
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double t = findTByValue(xy, isY);
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double value = getLineValueByT(t, !isY);
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if (l <= value && value <= r && fabs(t) > eps && fabs(1 - t) > eps) {
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@ -23,7 +23,7 @@ vector<Point> Line::toPointVector() const {
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Point Line::operator[](int index) const {
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return { vX[index], vY[index] };
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}
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Point Line::getPointByIndex(int index) const {
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return operator[](index);
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}
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@ -61,7 +61,7 @@ Point Line::getEnd() {
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}
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int Line::direction(bool isY) {
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float valueBegin = *vX.begin(), valueEnd = *vX.rbegin();
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double valueBegin = *vX.begin(), valueEnd = *vX.rbegin();
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if (isY) {
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valueBegin = *vY.begin();
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valueEnd = *vY.rbegin();
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@ -210,7 +210,7 @@ void ShortCutTree::spliteToShortCutTree() {
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}
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else {
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ShortCutNode seTreeNode, swTreeNode;
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float xMid = (nowTreeNode.bound.x() + nowTreeNode.bound.z()) / 2;
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float xMid = (nowTreeNode.bound.x() + nowTreeNode.bound.z()) / 2+1e-5;
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seTreeNode.bound = QVector4D(xMid, nowTreeNode.bound.y(), nowTreeNode.bound.z(), yMid);
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isDivided |= handleShortCutNode(nowTreeNode, seTreeNode, segment.first, generatedTreeNodes, sumIncrement);
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swTreeNode.bound = QVector4D(nowTreeNode.bound.x(), nowTreeNode.bound.y(), xMid, yMid);
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@ -1,7 +1,7 @@
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#include "StraightLine.h"
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double StraightLine::getLineValueByT(double t, bool isY) {
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float valueBegin, valueEnd;
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double valueBegin, valueEnd;
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if (isY) {
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valueBegin = *vY.begin();
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valueEnd = *vY.rbegin();
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@ -16,11 +16,11 @@ double StraightLine::getLineValueByT(double t, bool isY) {
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double StraightLine::findTByValue(double value, bool isY) {
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Point pointBegin = getPointByIndex(0), pointEnd = getPointByIndex(1);
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if (!isY) {
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if(fabs(pointBegin.x - pointEnd.x) <= eps) return 0;
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if(fabs(pointBegin.x - pointEnd.x) <= eps) return 0.0;
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return (value - pointBegin.x) / (pointEnd.x - pointBegin.x);
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}
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else {
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if (fabs(pointBegin.y - pointEnd.y) <= eps) return 0;
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if (fabs(pointBegin.y - pointEnd.y) <= eps) return 0.0;
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return (value - pointBegin.y) / (pointEnd.y - pointBegin.y);
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}
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}
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@ -31,10 +31,10 @@ int StraightLine::judgeBoundIntersection(double xy, double l, double r, bool isY
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swap(pointBegin.x, pointBegin.y);
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swap(pointEnd.x, pointEnd.y);
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}
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if ((pointBegin.x - xy) * (pointEnd.x - xy) >= eps) return 0;
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if ((pointBegin.x - xy) * (pointEnd.x - xy) >= 0) return 0;
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if (direction(isY)) {
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float t = findTByValue(xy, isY);
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float value = getLineValueByT(t, !isY);
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double t = findTByValue(xy, isY);
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double value = getLineValueByT(t, !isY);
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if (l <= value && value <= r && fabs(t) > eps && fabs(1-t) > eps) {
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return 1 + direction(isY);
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}
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