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experiment with buckets object instead of array to handle negative z. avoid mutating output points in renderer

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This commit is contained in:
Stewart Allen 2022-11-03 23:16:07 -04:00
commit 54b9889ffa
3 changed files with 37 additions and 30 deletions
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14
src/kiri-mode/cam/slicer.js
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@ -125,17 +125,23 @@ class Slicer {
* to reduce the search space in complex models
*/
computeBuckets() {
let bounds = this.bounds;
let zSum = this.zSum;
let zMax = this.bounds.max.z;
let points = this.points;
let bucketCount = Math.max(1, Math.ceil(zMax / (zSum / points.length)) - 1);
let zScale = this.zScale = 1 / (zMax / bucketCount);
let buckets = this.buckets = [];
if (bucketCount > 1 && !this.options.nobucket) {
let buckets = this.buckets = {};
if (bucketCount > 1) {// && !this.options.nobucket) {
// create empty buckets
for (let i = 0; i <= bucketCount + 1; i++) {
buckets.push([]);
let min = Math.floor(bounds.min.z * zScale);
let max = Math.ceil(bounds.max.z * zScale);
for (let i = min; i <= max; i++) {
buckets[i] = [];
}
// for (let i = 0; i <= bucketCount + 1; i++) {
// buckets.push([]);
// }
// copy triples into all matching z-buckets
for (let i = 0, il = points.length; i < il; ) {