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Add "is" to geometry.scad predicates

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Adrian Mariano
2021-09-15 19:01:34 -04:00
parent ea7b947bcb
commit d78eb5213e
8 changed files with 105 additions and 132 deletions
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shapes2d.scad
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@@ -618,7 +618,7 @@ function arc(N, r, angle, d, cp, points, width, thickness, start, wedge=false, l
arc(N,cp=cp,r=r,start=atan2(v1.y,v1.x),angle=final_angle,wedge=wedge)
) : (
// Final case is arc passing through three points, starting at point[0] and ending at point[3]
let(col = collinear(points[0],points[1],points[2]))
let(col = is_collinear(points[0],points[1],points[2]))
assert(!col, "Collinear inputs do not define an arc")
let(
cp = line_intersection(_normal_segment(points[0],points[1]),_normal_segment(points[1],points[2])),