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change dragknife start point for inner polys

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This commit is contained in:
Stewart Allen 2025-07-31 17:57:56 -04:00
commit bacc58ad73
1 changed files with 8 additions and 2 deletions
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10
src/kiri/mode/laser/driver.js
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@ -120,12 +120,18 @@ function arc(center, rad, s1, s2, out) {
function addKnifeRadii(poly, tipoff) {
poly.setClockwise();
let oldpts = poly.points.slice();
// find leftpoint and make that the first point
let start = oldpts[0];
let startI = 0;
let inner = tipoff < 0;
tipoff = Math.abs(tipoff);
for (let i=1; i<oldpts.length; i++) {
let pt = oldpts[i];
if (pt.x < start.x || pt.y > start.y) {
if (inner && (pt.x > start.x || (pt.x == start.x && pt.y < start.y))) {
start = pt;
startI = i;
} else if (!inner && (pt.x < start.x || (pt.x == start.x && pt.y > start.y))) {
start = pt;
startI = i;
}
@ -352,7 +358,7 @@ async function laser_prepare(widgets, settings, update) {
for (let poly of slice.offset) {
addKnifeRadii(poly, ctOutKnifeTip);
if (poly.inner) poly.inner.forEach(ip => {
addKnifeRadii(ip, ctOutKnifeTip);
addKnifeRadii(ip, -ctOutKnifeTip);
});
}
}