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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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7
regions.scad
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@@ -688,10 +688,11 @@ function _point_dist(path,pathseg_unit,pathseg_len,pt) =
// offsetpath = offset(path, [r|delta], [chamfer], [closed], [check_valid], [quality])
// path_faces = offset(path, return_faces=true, [r|delta], [chamfer], [closed], [check_valid], [quality], [firstface_index], [flip_faces])
// Description:
// Takes an input path and returns a path offset by the specified amount. As with the built-in
// Takes a 2D input path and returns a path offset by the specified amount. As with the built-in
// offset() module, you can use `r` to specify rounded offset and `delta` to specify offset with
// corners. If you used `delta` you can set `chamfer` to true to get chamfers.
// Positive offsets shift the path to the left (relative to the direction of the path).
// Positive offsets shift the path to the left (relative to the direction of the path). Note
// that the path must not include any 180 degree turns, where the path reverses direction.
// .
// When offsets shrink the path, segments cross and become invalid. By default `offset()` checks
// for this situation. To test validity the code checks that segments have distance larger than (r
@@ -831,7 +832,7 @@ function offset(
(len(sharpcorners)==2 && !closed) ||
all_defined(closed? sharpcorners : select(sharpcorners, 1,-2))
)
assert(parallelcheck, "Path contains sequential parallel segments (either 180 deg turn or 0 deg turn")
assert(parallelcheck, "Path contains a segment that reverses direction (180 deg turn)")
let(
// This is a boolean array that indicates whether a corner is an outside or inside corner
// For outside corners, the newcorner is an extension (angle 0), for inside corners, it turns backward