Doodle3D-Slicer/src/sliceActions/generateInnerLines.js
2017-06-22 13:21:18 +02:00

49 lines
1.3 KiB
JavaScript

import { PRECISION } from '../constants.js'
const offsetOptions = {
jointType: 'jtSquare',
endType: 'etClosedPolygon',
miterLimit: 2.0,
roundPrecision: 0.25
};
export default function generateInnerLines(slices, settings) {
console.log('generating outer lines and inner lines');
// need to scale up everything because of clipper rounding errors
let { layerHeight, nozzleDiameter, shellThickness } = settings.config;
nozzleDiameter /= PRECISION;
shellThickness /= PRECISION;
const nozzleRadius = nozzleDiameter / 2;
const shells = Math.round(shellThickness / nozzleDiameter);
for (let layer = 0; layer < slices.length; layer ++) {
const slice = slices[layer];
for (let i = 0; i < slice.parts.length; i ++) {
const part = slice.parts[i];
if (!part.shape.closed) continue;
const outerLine = part.shape.offset(-nozzleRadius, offsetOptions);
if (outerLine.paths.length > 0) {
part.outerLine.join(outerLine);
for (let shell = 1; shell < shells; shell += 1) {
const offset = shell * nozzleDiameter;
const innerLine = outerLine.offset(-offset, offsetOptions);
if (innerLine.paths.length > 0) {
part.innerLines.push(innerLine);
}
else {
break;
}
}
}
}
}
}