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Added force_list, path_to_bezier, smooth_path, associate_vertices,

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improved skin and sweep error handling.  Allow path_sweep to take a 2d
path.
This commit is contained in:
Adrian Mariano
2020-03-04 20:24:00 -05:00
parent 469b4cb525
commit 51af394c24
6 changed files with 140 additions and 15 deletions
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5
paths.scad
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@@ -46,7 +46,7 @@ function is_path(list, dim=[2,3], fast=false) =
fast? is_list(list) && is_vector(list[0],fast=true) :
is_list(list) && is_list(list[0]) && len(list)>1 &&
let( d = len(list[0]) )
(is_undef(dim) || in_list(d, is_list(dim)?dim:[dim]) ) &&
(is_undef(dim) || in_list(d, force_list(dim))) &&
is_list_of(list, replist(0,d));
@@ -287,7 +287,7 @@ function path_closest_point(path, pt) =
// The returns vectors will be normalized to length 1.
function path_tangents(path, closed=false) =
assert(is_path(path))
[for(t=deriv(path)) unit(t)];
[for(t=deriv(path,closed=closed)) unit(t)];
// Function: path_normals()
@@ -862,6 +862,7 @@ module path_extrude(path, convexity=10, clipsize=100) {
// polyline = [for (a=[0:30:210]) 10*[cos(a), sin(a), sin(a)]];
// trace_polyline(polyline, showpts=true, size=0.5, color="lightgreen");
module trace_polyline(pline, closed=false, showpts=false, N=1, size=1, color="yellow") {
assert(is_path(pline),"Input pline is not a path");
sides = segs(size/2);
pline = closed? close_path(pline) : pline;
if (showpts) {