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for area offsets, disable wasm (lacks features) and use round joins for offsets (better tool paths for cnc)

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This commit is contained in:
Stewart Allen 2025-12-13 15:48:30 -05:00
commit d5b6d4c080
7 changed files with 66 additions and 46 deletions
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14
src/kiri/core/widget.js
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@ -3,6 +3,7 @@
import { base } from '../../geo/base.js';
import { avgc } from './utils.js';
import { util as mesh_util } from '../../mesh/util.js';
import { tool as mesh_tool } from '../../mesh/tool.js';
import { verticesToPoints } from '../../geo/points.js';
import { newPoint } from '../../geo/point.js';
import { newPolygon } from '../../geo/polygon.js';
@ -158,7 +159,12 @@ class Widget {
* @param {Float32Array} vertices
* @returns {Widget}
*/
loadVertices(data, options = { index: false }) {
loadVertices(data, options = { normalize: false }) {
if (options.normalize) {
console.time('mesh normalize')
data = new mesh_tool({ precision: 0.001 }).normalizeVertices(data).toFloat32();
console.timeEnd('mesh normalize');
}
// console.trace({ loadVertices: this.id, worker: this.inWorker, data });
let vertices,
autoscale = false;
@ -859,9 +865,9 @@ class Widget {
// find closest shadow above and use to speed up delta shadow gen
let zover = Object.keys(shadows).map(v => parseFloat(v)).filter(v => v > z);
let minZabove = Math.min(Infinity, ...zover);
let shadow = this.#computeShadowAt(z, minZabove);
let shadow = this.#computeShadowAt(z - 0.01, minZabove);
if (minZabove < Infinity) {
shadow = POLY.union([...shadow, ...shadows[minZabove]], 0.001, true);
shadow = POLY.union([...shadow, ...shadows[minZabove]], 0.001, true, { wasm: false });
}
return shadows[z] = POLY.setZ(shadow, z);
}
@ -953,7 +959,7 @@ class Widget {
.add(a[1].x, a[1].y, a[1].z)
.add(a[2].x, a[2].y, a[2].z);
});
polys = POLY.union(polys, 0, true);
polys = POLY.union(polys, 0, true, { wasm: false });
// for a more perfect union, pump shadows to merge very close lines
// todo: create clipper only version that avoids round trip thru geo classes