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update pool ordering strategy. change expand() to use offset()

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This commit is contained in:
Stewart Allen 2020-11-02 15:35:02 -05:00
commit fd4270d29f
2 changed files with 21 additions and 9 deletions
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6
src/geo/polygons.js
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@ -441,9 +441,9 @@
* @returns {Polygon[]} last offset
*/
function expand(polys, distance, z, out, count, distance2, collector, min) {
// return offset(polys, [distance, distance2 || distance], {
// z, outs: out, call: collector, minArea: min, count, flat: true
// });
return offset(polys, [distance, distance2 || distance], {
z, outs: out, call: collector, minArea: min, count, flat: true
});
// prepare alignments for clipper lib
alignWindings(polys);

24
src/kiri/print.js
View file

@ -1095,10 +1095,6 @@
// console.log({skip_open_above:above});
continue;
}
// do not allow inner and outer polys to mix
// if (!above.sameWindings(pool)) {
// continue;
// }
// if pool fits into smallest above pool, add it and break
if (polygonFitsIn(pool, above, 0.1)) {
above.poolsDown.push(pool);
@ -1109,7 +1105,9 @@
});
const emitPool = function(poolPoly) {
if (poolPoly.mark) return;
if (poolPoly.mark) {
return;
}
poolPoly.mark = true;
const polys = poolPoly.pool.slice().append(poolPoly);
startPoint = poly2polyEmit(polys, startPoint, emitter, null, false);
@ -1121,8 +1119,22 @@
// pools are sorted smallest to largest. pools are polygons with an
// attached 'pool' array of polygons
layers.forEach(function(pools) {
startPoint = poly2polyEmit(pools, startPoint, emitPool, "del_ptop", true);
pools.forEach(ppoly => {
if (!(ppoly.pool && ppoly.pool.length)) {
return ppoly.smallest = ppoly;
}
ppoly.pool.sort((a, b) => {
return a.perimeter() - b.perimeter();
});
ppoly.smallest = ppoly.pool[0];
});
pools.sort((a, b) => {
return a.smallest.perimeter() - b.smallest.perimeter();
}).forEach((ppoly, count) => {
startPoint = emitPool(ppoly) || startPoint;
});
})
return startPoint;
}