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add negative chamfer hack for bottom-only gear chamfers

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This commit is contained in:
Stewart Allen 2024-07-19 21:39:23 -04:00
commit 17581dbe7e
2 changed files with 11 additions and 3 deletions
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12
src/geo/polygon.js
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@ -2133,6 +2133,13 @@ class Polygon {
let z_side_top = z;
let z_side_bottom = z_bottom;
console.log({ chamfer });
if (chamfer < 0) {
chamfer_top = 0;
chamfer_bottom = -chamfer;
}
// create chamfers (when defined)
if (chamfer_top) {
let inset = this.offset(chamfer_top);
@ -2149,11 +2156,12 @@ class Polygon {
if (chamfer_bottom) {
let inset = this.offset(chamfer_bottom);
console.log({ inset });
if (inset.length === 1) {
inset[0].setZ(0);
bottom_face = inset[0].earcut();
z_side_top -= chamfer_top;
z_side_bottom += chamfer_top;
z_side_top -= chamfer_top || chamfer_bottom;
z_side_bottom += chamfer_bottom;
let renest = POLY.renest([this.clone(true).setZ(z_side_bottom), inset[0]]);
for (let rnpoly of renest) {
obj.appendAll(rnpoly.ribbonMesh(false));