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change param

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This commit is contained in:
Justin Lin 2021-08-26 20:27:42 +08:00
parent 679e3aae62
commit 2355820034
1 changed files with 4 additions and 1 deletions
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5
src/experimental/tri_is_ccw.scad
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@ -1,5 +1,8 @@
function tri_is_ccw(p1, p2, p3) =
function tri_is_ccw(shape_pts) =
let(
p1 = shape_pts[0],
p2 = shape_pts[1],
p3 = shape_pts[2],
area = (p2[0] - p1[0]) * (p3[1] - p1[1]) - (p3[0] - p1[0]) * (p2[1] - p1[1]),
_ = assert(area != 0, "points are collinear")
)