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Update GetLineToLine.js

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This commit is contained in:
Zeke Chan 2024-06-13 17:30:36 +08:00
parent 7724dd0076
commit 52f3309ab5
1 changed files with 13 additions and 1 deletions
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12
src/geom/intersects/GetLineToLine.js
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@ -63,7 +63,19 @@ var GetLineToLine = function (line1, line2, isRay, out)
if (isRay)
{
t = (dx1 * (y3 - y1) + dy1 * (x1 - x3)) / (dx2 * dy1 - dy2 * dx1);
if (dx1 !== 0)
{
u = (x3 + dx2 * t - x1) / dx1;
}
else if (dy1 !== 0)
{
u = (y3 + dy2 * t - y1) / dy1;
}
else
{
return null; // degenerate line segment
}
// Intersects?
if (u < 0 || t < 0 || t > 1)