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undo bucket map. enable mem free ref after slicing

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This commit is contained in:
Stewart Allen 2023-01-10 22:00:50 -05:00
commit c157dd1d64
1 changed files with 12 additions and 10 deletions
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22
src/geo/slicer.js
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@ -45,7 +45,6 @@ async function slice(points, options = {}) {
zScale, // bucket span in z units
zSum = 0.0, // sanity check that points enclose non-zere volume
buckets = [], // banded/grouped faces to speed up slice/search
bucketMap = {},
overlapMax = options.overlap || 0.75,
bucketMax = options.bucketMax || 100,
onupdate = options.onupdate || function() {},
@ -162,6 +161,11 @@ async function slice(points, options = {}) {
return {};
}
// create empty buckets
for (i = 0; i < bucketCount; i++) {
buckets.push({ points: [], slices: [] });
}
if (bucketCount > 1) {
let failAt = (points.length * overlapMax) | 0, bucket;
// copy triples into all matching z-buckets
@ -175,12 +179,7 @@ async function slice(points, options = {}) {
bM = Math.min(Math.ceil(zM * zScale), bucketCount);
// add point to all buckets in range
for (j = bm; j < bM; j++) {
let map = bucketMap[j];
if (!map) {
map = bucketMap[j] = { points: [], slices: [] };
buckets.push(map);
}
bucket = map.points;
bucket = buckets[j].points;
bucket.push(p1);
bucket.push(p2);
bucket.push(p3);
@ -197,7 +196,6 @@ async function slice(points, options = {}) {
// fallback if we can't partition point space
if (bucketCount === 1) {
buckets = [{ points, slices: [] }];
bucketMap[0] = buckets[0];
}
// create buckets data structure
@ -206,7 +204,11 @@ async function slice(points, options = {}) {
index = bucketCount <= 1 ? 0 :
Math.min(Math.floor(z * zScale), bucketCount - 1),
bucket = buckets[index];
if (bucket) bucket.slices.push(z); else console.log({skip: index});
if (bucket) {
bucket.slices.push(z);
} else {
console.log({ missing_bucket: z, index });
}
onupdate((i / zIndexes.length) * 0.1);
}
@ -403,7 +405,7 @@ async function sliceZ(z, points, options = {}) {
}
// free objects to be re-claimed and reduce memory pressure
if (false) {
if (true) {
delete rval.groups
delete rval.lines
delete rval.clip.m_AllPolys