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refactor

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This commit is contained in:
Justin Lin
2022-04-16 14:16:02 +08:00
parent 9ea8812d0f
commit 8a0ea31c78
1 changed files with 3 additions and 3 deletions
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6
src/__comm__/__line_intersection.scad
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@@ -22,9 +22,9 @@ function __line_intersection3(line_pts1, line_pts2, epsilon = 0.0001) =
b = b2 - b1, b = b2 - b1,
s = b1 - a1, s = b1 - a1,
n1 = cross(a, b), n1 = cross(a, b),
norm_n1 = norm(n1) n1p = n1 * n1
) )
cross(a, s) * (b2 - a1) != 0 || // they aren't coplanar cross(a, s) * (b2 - a1) != 0 || // they aren't coplanar
norm_n1 < epsilon ? [] : // they are parallel or conincident edges n1p < epsilon ^ 2 ? [] : // they are parallel or conincident edges
let(n2 = cross(s, b)) let(n2 = cross(s, b))
a1 + a * (norm(n2) / norm_n1 * (n1 * n2 >= 0 ? 1 : -1)); a1 + a * (sqrt(n2 * n2 / n1p) * (n1 * n2 >= 0 ? 1 : -1));