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improve gap routing. add adaptive shell fallback on failure

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This commit is contained in:
Stewart Allen 2025-09-28 22:39:56 -04:00
commit f53d6da12b
3 changed files with 42 additions and 13 deletions
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15
src/kiri/mode/fdm/post.js
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@ -487,6 +487,7 @@ function trace_noodle(noodle, noodleWidth, minR, midR, maxR, opt = {}) {
// construct medial axis lines. this appears to produce duplicate
// reverse segments in a subset of cases
let ma = JSPoly.construct_medial_axis(out, inr);
if (ma.length === 0) throw('cannot construct medial axis');
// dedup the points so we can track them uniquely
for (let { point0, point1 } of ma) {
pointsToLine(point0, point1);
@ -696,7 +697,8 @@ export function doTopShells(z, top, count, offset1, offsetN, fillOffset, opt = {
if (dist < 1) p.open = false;
} });
let ret = { last, gaps };
switch (opt.thinType) {
let ttype = opt.thinType;
switch (ttype) {
case "legacy 1":
ret = thin_type_1({ z, top, count, top_poly, offsetN, fillOffset });
break;
@ -704,13 +706,18 @@ export function doTopShells(z, top, count, offset1, offsetN, fillOffset, opt = {
ret = thin_type_2({ z, top, count, top_poly, offset1, offsetN, fillOffset, gaps, wasm });
break;
case "adaptive":
ret = thin_type_3({ z, top, count, offsetN });
break;
try {
ret = thin_type_3({ z, top, count, offsetN });
break;
} catch (e) {
console.log('adaptive layer failed. falling back to basic.', e);
ttype = "basic";
}
case "basic":
default:
ret = offset_default({
z, top, count, top_poly, offset1, offsetN, wasm,
thin: opt.thinType === 'basic'
thin: ttype === 'basic'
});
break;
}