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add single (odd) wall claim system for median intercepts

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This commit is contained in:
Stewart Allen 2025-09-17 01:21:31 -04:00
commit 7fcc475173
1 changed files with 18 additions and 10 deletions
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24
src/kiri/mode/fdm/post.js
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@ -181,6 +181,7 @@ function thin_type_3(params) {
let showInsetPoints = false;
let showChainRawPoints = false;
let showChainInterpPoints = true;
let showChainIntersect = false;
let showNuMedLine = false;
let showMedLine = true;
let showMedPoints = false;
@ -192,9 +193,10 @@ function thin_type_3(params) {
let shells = top.shells;
let sparse = top.fill_sparse = [];
let scale = 1000;
let midR = offsetN * 0.5;
let minR = midR * 0.75;
let maxR = midR * 1.5;
let midR = offsetN * 0.5; // nominal extrusion width
let minR = midR * 0.75; // smallest interior fill or single wall width
let maxR = midR * 1.5; // max double wall extrusion width
let maxF = midR * 2; // max interior extrusion width
let minSpur = offsetN * 1;
let inset;
@ -678,7 +680,6 @@ function thin_type_3(params) {
// project inset segment normals onto closest chain
if (intersectChains) {
console.log({ chains, nuchains });
let { intersect } = base.util;
let { SEGINT } = base.key;
inset = POLY.flatten(inset, []);
@ -701,14 +702,21 @@ function thin_type_3(params) {
}
}
if (min.p1) {
let { p1, p2 } = min;
if (showChainIntersect) {
thin.push(new Point(np1.x, np1.y));
thin.push(new Point(min.x, min.y));
let mr = Math.min(min.p1.r, min.p2.r);
}
let mr = Math.min(p1.r, p2.r);
if (mr < minR) return;
let pop = div(mr);
// todo decide which side has priority to emit single wall
// same is true for odd midlines: 3, 5, etc
if (pop.length === 1) return;
// implement first-to-intersect claim system
// for odd wall counts so that they're not emitted twice
// todo extend to all odd counts
if (pop.length === 1 && p1.claimed) {
return;
}
p1.claimed = true;
shells.push(newPolygon().centerCircle({
x: np1.x + dy * (pop[0] - dstep),
y: np1.y - dx * (pop[0] - dstep)