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for line intersection, exclude the end point of the intersected line.

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This is needed to make Build's utilities work as expected.
This commit is contained in:
Christoph Oelckers 2023-10-23 16:14:43 +02:00
parent 66db6c5855
commit e7b67e2528
1 changed files with 1 additions and 1 deletions
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source/common/utility/geometry.h
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@ -150,7 +150,7 @@ inline double InterceptLineSegments(double v2x, double v2y, double v2dx, double
den = 1 / den; den = 1 / den;
double factor1 = ((v2x - v1x) * v2dy + (v1y - v2y) * v2dx) * -den; double factor1 = ((v2x - v1x) * v2dy + (v1y - v2y) * v2dx) * -den;
if (factor1 < 0 || factor1 > 1) return -FLT_MAX; // no intersection if (factor1 < 0 || factor1 >= 1) return -FLT_MAX; // no intersection
if (pfactor1) *pfactor1 = factor1; if (pfactor1) *pfactor1 = factor1;
return ((v1x - v2x) * v1dy + (v2y - v1y) * v1dx) * den; // this one's for the line segment where we want to get the intercept factor for so it needs to be last. return ((v1x - v2x) * v1dy + (v2y - v1y) * v1dx) * den; // this one's for the line segment where we want to get the intercept factor for so it needs to be last.