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detect 'flats' at the start and end of z-curved regions

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This commit is contained in:
Stewart Allen 2020-02-18 22:24:05 -05:00
commit 56fc8afe52
2 changed files with 41 additions and 18 deletions
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57
js/kiri-slicer.js
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@ -138,22 +138,24 @@ var gs_kiri_slicer = exports;
countZ(p2.z);
countZ(p3.z);
}
// detect zLines
// if (p1.z === p2.z && p1.z > bounds.min.z) {
// let zkey = p1.z.toFixed(5);
// let zval = zLines[zkey];
// zLines[zkey] = (zval || 0) + 1;
// }
// if (p2.z === p3.z && p2.z > bounds.min.z) {
// let zkey = p2.z.toFixed(5);
// let zval = zLines[zkey];
// zLines[zkey] = (zval || 0) + 1;
// }
// if (p3.z === p1.z && p3.z > bounds.min.z) {
// let zkey = p3.z.toFixed(5);
// let zval = zLines[zkey];
// zLines[zkey] = (zval || 0) + 1;
// }
// detect zLines (curved region tops/bottoms)
if (options.cam) {
if (p1.z === p2.z && p1.z > bounds.min.z) {
let zkey = p1.z.toFixed(5);
let zval = zLines[zkey];
zLines[zkey] = (zval || 0) + 1;
}
if (p2.z === p3.z && p2.z > bounds.min.z) {
let zkey = p2.z.toFixed(5);
let zval = zLines[zkey];
zLines[zkey] = (zval || 0) + 1;
}
if (p3.z === p1.z && p3.z > bounds.min.z) {
let zkey = p3.z.toFixed(5);
let zval = zLines[zkey];
zLines[zkey] = (zval || 0) + 1;
}
}
// auto-detect flats for cam faces and to avoid slicing directly on flats
if (p1.z === p2.z && p2.z === p3.z && p1.z > bounds.min.z) {
var zkey = p1.z.toFixed(5),
@ -166,6 +168,26 @@ var gs_kiri_slicer = exports;
}
}
let zlk, zlv;
// detect zLines bottoms and translate to zFlats
Object.entries(zLines)
.map(v => [v[0], v[1], parseFloat(v[0])])
.sort((a,b) => {
return a[2] - b[2]
})
.forEach(zl => {
if (zlk) {
if (zlv != zl[1]) {
zFlat[zlk] = zlv;
zlv = zl[1];
}
zlk = zl[0];
} else {
zlk = zl[0];
zlv = zl[1];
}
});
/** bucket polygons into z-bounded groups */
var bucketCount = Math.max(1, Math.ceil(zMax / (zSum / points.length)) - 1);
@ -221,7 +243,8 @@ var gs_kiri_slicer = exports;
for (key in zFlat) {
// todo make threshold for flat detection configurable
if (!zFlat.hasOwnProperty(key) || zFlat[key] < 10) continue;
if (!zIndexes.contains(key) && key >= zMin) zIndexes.push(parseFloat(key));
key = parseFloat(key);
if (!zIndexes.contains(key) && key >= zMin) zIndexes.push(key);
}
// sort top down
zIndexes.sort(function(a,b) {

2
js/license.js
View file

@ -1,7 +1,7 @@
var exports = {
COPYRIGHT:"Copyright (C) 2014-2019 Stewart Allen <sa@grid.space> - All Rights Reserved",
LICENSE:"See the license.md file included with the source distribution",
VERSION:"1.6.1"
VERSION:"1.6.2"
};
if (!module) var module = {};
module.exports = exports;