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fix ray/line. add max inset visalization

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This commit is contained in:
Stewart Allen 2025-09-18 14:42:41 -04:00
commit 43a083a93a
4 changed files with 78 additions and 28 deletions
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85
src/kiri/mode/fdm/post.js
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@ -175,7 +175,8 @@ function thin_type_3(params) {
let simplifyChain = false;
let shortenAtNexus = false;
let shortenEdgeSpur = false;
let intersectChains = true;
let intersectChains = false;
let maxInsetBypass = true;
let showNoodle = false;
let showExtrusion = true;
@ -185,7 +186,7 @@ function thin_type_3(params) {
let showChainInterpPoints = true;
let showChainIntersect = false;
let showNuMedLine = false;
let showMedLine = false;
let showMedLine = true;
let showMedPoints = false;
let showMedNormals = false;
let showMedRadii = false;
@ -201,38 +202,90 @@ function thin_type_3(params) {
let maxF = midR * 2; // max interior extrusion width
let minSpur = offsetN * 1;
let insets = [];
let inset;
let dstep = minR / 4;
let dtotl = 0;
top.gaps = remain;
if (true) {
let dtotl = 0;
if (maxInsetBypass || intersectChains) {
inset = POLY.offset(noodle, -dstep, {
join: ClipperLib.JoinType.jtRound,
arc: (1/dstep) * 4
});
while (inset && inset.length) {
dtotl += dstep;
let ps = POLY.flatten(inset);
for (let poly of ps) {
for (let p of poly.segment(minR).points) {
let d = dtotl * 0+0.05;
// let z = dtotl * 10;
if (showInsetPoints)
shells.append( newPolygon().centerCircle(p, d, 10).setZ(z) );
}
for (let p of POLY.flatten(inset, [])) {
p.dtotl = dtotl;
}
insets.push(inset);
let ps = POLY.flatten(inset);
POLY.setZ(inset, z);
shells.appendAll(inset);
if (true || dtotl >= maxR) {
if (intersectChains) {
break;
}
inset = POLY.expand(inset, -dstep);
// if (dtotl >= maxR * 3) {
// break;
// }
inset = POLY.offset(inset, -dstep, {
// join: ClipperLib.JoinType.jtRound,
// arc: (1/dstep) * 4
minArea: 0
});
}
}
// shells.appendAll(noodle);
// return { last, gaps };
// project from first inset and find greated offset intersection
if (maxInsetBypass) {
// shells.appendAll(noodle);
// return { last, gaps };
let { intersectRayLine } = base.util;
let tests = insets.slice(1);
let source = POLY.flatten(insets[0], []);
console.log({ source, tests });
for (let poly of source) {
// segment the smallest inset and test against all other insets
poly.segment(minR).forEachSegment((p1, p2) => {
let np1 = { x:(p1.x+p2.x)/2, y:(p1.y+p2.y)/2 };
let len = pointDist(p1, p2);
let dx = (p1.x - p2.x) / len;
let dy = (p1.y - p2.y) / len;
let np2 = { x: np1.x + dy * 10, y: np1.y - dx * 10 };
let max = { dtotl: poly.dtotl, dist: Infinity, maxd: Infinity };
let term = false;
outer: for (let test of tests) {
for (let tpoly of POLY.flatten(test, [])) {
tpoly.forEachSegment((tp1, tp2) => {
let int = intersectRayLine(np1, { dx: dy, dy: -dx }, tp1, tp2);
if (int && int.dist > int.p1.poly.dtotl) {
return;
}
if (int && int.dist <= max.maxd && int.p1.poly.dtotl > max.dtotl) {
max.dtotl = int.p1.poly.dtotl;
max.dist = int.dist;
max.int = int;
} else if (int && int.dist <= max.maxd && int.p1.poly.dtotl === max.dtotl && int.dist < max.dist) {
max.dtotl = int.p1.poly.dtotl;
max.dist = int.dist;
max.int = int;
}
});
if (term) {
break outer;
}
}
}
if (max.int) {
thin.push(new Point(np1.x, np1.y, z));
thin.push(new Point(max.int.x, max.int.y, z));
}
});
}
shells.appendAll(noodle);
return { last, gaps };
}
let pointMap = new Map();
let lineMap = new Map();