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defer shadow creation. de-rez polys for massive shadow unions in some cases

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This commit is contained in:
Stewart Allen 2021-06-19 15:17:36 -04:00
commit e94a8d4d1f
2 changed files with 31 additions and 17 deletions
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16
src/geo/polygon.js
View file

@ -41,6 +41,16 @@
return this.points.length;
}
get deepLength() {
let len = this.length;
if (this.inner) {
for (let inner of this.inner) {
len += inner.length;
}
}
return len;
}
get bounds() {
if (this._bounds) {
return this._bounds;
@ -1420,14 +1430,14 @@
* simplify and merge collinear. only works for single
* non-nested polygons. used primarily in slicer/connectLines.
*/
PRO.clean = function(deep, parent) {
PRO.clean = function(deep, parent, merge = CONF.clipperClean) {
let clib = self.ClipperLib,
clip = clib.Clipper,
clean = clip.CleanPolygon(this.toClipper()[0], CONF.clipperClean),
clean = clip.CleanPolygon(this.toClipper()[0], merge),
poly = fromClipperPath(clean, this.getZ());
if (poly.length === 0) return this;
if (deep && this.inner) {
poly.inner = this.inner.map(inr => inr.clean(false, poly));
poly.inner = this.inner.map(inr => inr.clean(false, poly, merge));
}
poly.parent = parent || this.parent;
poly.area2 = this.area2;

32
src/mode/fdm/slice.js
View file

@ -259,20 +259,6 @@
slice.solids = [];
});
// create shadow for clipping supports
let shadow = null;
if (!isBelt || spro.sliceSupportEnable) {
let alltops = slices.map(slice => slice.topPolys()).flat();
shadow = POLY.union(alltops,null,0.1);
if (spro.sliceSupportExtra) {
shadow = POLY.offset(shadow, spro.sliceSupportExtra);
}
widget.shadow = shadow;
// slices[0].output()
// .setLayer('shadow', { line: 0xff0000, check: 0xff0000 })
// .addPolys(shadow);
}
// create shells and diff inner fillable areas
forSlices(0.0, 0.2, slice => {
let params = getRangeParameters(settings, slice.index);
@ -474,6 +460,24 @@
// auto support generation
if (!isBelt && !isSynth && supportDensity && spro.sliceSupportEnable) {
// create shadow for clipping supports
let mark = Date.now();
let shadow = null;
let alltops = slices.map(slice => slice.topPolys()).flat();
let alllen = alltops.map(p => p.deepLength).reduce((a,v)=>a+v);
// console.log({alllen});
if (alllen > 100000) {
alltops = alltops.map(p => p.clean(true, undefined, 10000));
// console.log({reduced: alltops.map(p => p.deepLength).reduce((a,v)=>a+v)});
}
shadow = POLY.union(alltops,0.1,true);
if (spro.sliceSupportExtra) {
shadow = POLY.offset(shadow, spro.sliceSupportExtra);
}
widget.shadow = shadow;
// slices[0].output()
// .setLayer('shadow', { line: 0xff0000, check: 0xff0000 })
// .addPolys(shadow);
forSlices(0.7, 0.8, slice => {
doSupport(slice, spro, shadow);
}, "support");