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Minor stroke() bugfix for duplicate start or endpoints.

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This commit is contained in:
Revar Desmera 2020-03-11 22:21:26 -07:00
parent 2cf0ce47d9
commit 579714a9f7
2 changed files with 4 additions and 5 deletions
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7
shapes2d.scad
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@ -114,7 +114,7 @@ module stroke(
assert(is_bool(closed));
assert(is_path(path,[2,3]), "The path argument must be a list of 2D or 3D points.");
path = closed? concat(path,[path[0]]) : path;
path = deduplicate( closed? close_path(path) : path );
assert(is_num(width) || (is_vector(width) && len(width)==len(path)));
width = is_num(width)? [for (x=path) width] : width;
@ -174,6 +174,8 @@ module stroke(
[lerp(width[epos[0]], width[(epos[0]+1)%len(width)], epos[1])]
);
start_vec = select(path,0) - select(path,1);
end_vec = select(path,-1) - select(path,-2);
if (len(path[0]) == 2) {
// Straight segments
for (i = idx(path2,end=-2)) {
@ -209,7 +211,6 @@ module stroke(
// Endcap2
translate(select(path,-1)) {
end_vec = select(path,-1) - select(path,-2);
rot(from=BACK, to=end_vec) {
polygon(endcap_shape2);
}
@ -238,7 +239,6 @@ module stroke(
// Endcap1
translate(path[0]) {
start_vec = select(path,0) - select(path,1);
rot(from=UP, to=start_vec) {
if (is_undef(endcap_angle1)) {
rotate_extrude(convexity=convexity) {
@ -258,7 +258,6 @@ module stroke(
// Endcap2
translate(select(path,-1)) {
end_vec = select(path,-1) - select(path,-2);
rot(from=UP, to=end_vec) {
if (is_undef(endcap_angle2)) {
rotate_extrude(convexity=convexity) {

2
version.scad
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@ -8,7 +8,7 @@
//////////////////////////////////////////////////////////////////////
BOSL_VERSION = [2,0,181];
BOSL_VERSION = [2,0,182];
// Section: BOSL Library Version Functions