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change method for eliminating duplicate internal thru polys

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This commit is contained in:
Stewart Allen 2021-03-04 22:13:44 -05:00
commit 0b26bf35b1
3 changed files with 13 additions and 14 deletions
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7
src/mode/fdm/prepare.js
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@ -580,6 +580,7 @@
const flat = opts.flat;
const thin = opts.thin && !flat;
const ckspeed = opts.speed !== false;
const headColor = 0x888888;
const moveColor = opts.move >= 0 ? opts.move : 0xaaaaaa;
const printColor = opts.print >= 0 ? opts.print : 0x777700;
const layers = [];
@ -709,14 +710,14 @@
}
if (heads.length) {
output
.setLayer('arrows', { face: moveColor, line: 0x555555, opacity: 0.5 }, true)
.setLayer('arrows', { face: headColor, line: 0x112233, opacity: 0.5 }, true)
.addAreas(heads.map(points => {
const {p1, p2} = points;
const slope = p2.slopeTo(p1);
const s1 = BASE.newSlopeFromAngle(slope.angle + 20);
const s2 = BASE.newSlopeFromAngle(slope.angle - 20);
const p3 = points.p2.projectOnSlope(s1, 0.4);
const p4 = points.p2.projectOnSlope(s2, 0.4);
const p3 = points.p2.projectOnSlope(s1, 0.8);
const p4 = points.p2.projectOnSlope(s2, 0.8);
return newPolygon().addPoints([p2,p3,p4]).setZ(p2.z + 0.01);
}), { thin: true, outline: true });
}