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allow count to take a list as input

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vnf_wireframe does not draw unreferenced vertices
some error checking
This commit is contained in:
Adrian Mariano
2021-10-14 18:29:52 -04:00
parent 320867ac7a
commit acb65b3298
5 changed files with 16 additions and 8 deletions
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3
paths.scad
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@@ -441,7 +441,7 @@ function resample_path(path, N, spacing, closed=false) =
// Usage:
// bool = is_path_simple(path, [closed], [eps]);
// Description:
// Returns true if the path is simple, meaning that it has no self-intersections.
// Returns true if the given 2D path is simple, meaning that it has no self-intersections.
// Repeated points are not considered self-intersections: a path with such points can
// still be simple.
// If closed is set to true then treat the path as a polygon.
@@ -450,6 +450,7 @@ function resample_path(path, N, spacing, closed=false) =
// closed = set to true to treat path as a polygon. Default: false
// eps = Epsilon error value used for determine if points coincide. Default: `EPSILON` (1e-9)
function is_path_simple(path, closed=false, eps=EPSILON) =
assert(is_path(path, 2),"Must give a 2D path")
[for(i=[0:1:len(path)-(closed?2:3)])
let(v1=path[i+1]-path[i],
v2=select(path,i+2)-path[i+1],