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transition support detect from Geometry to BufferGeometry

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This commit is contained in:
Stewart Allen 2021-03-01 18:32:47 -05:00
commit d230f1e473
1 changed files with 11 additions and 9 deletions
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20
src/mode/fdm/slice.js
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@ -1269,10 +1269,9 @@
let process = settings.process; let process = settings.process;
let size = process.sliceSupportSize; let size = process.sliceSupportSize;
let min = process.sliceSupportArea || 1; let min = process.sliceSupportArea || 1;
let buf = new THREE.BufferGeometry(); let geo = new THREE.BufferGeometry();
buf.setAttribute('position', new THREE.BufferAttribute(widget.vertices, 3)); geo.setAttribute('position', new THREE.BufferAttribute(widget.vertices, 3));
let mat = new THREE.MeshBasicMaterial(); let mat = new THREE.MeshBasicMaterial();
let geo = new THREE.Geometry().fromBufferGeometry(buf);
let rad = (Math.PI / 180); let rad = (Math.PI / 180);
let deg = (180 / Math.PI); let deg = (180 / Math.PI);
let angle = rad * settings.process.sliceSupportAngle; let angle = rad * settings.process.sliceSupportAngle;
@ -1329,19 +1328,22 @@
} : (f) => { } : (f) => {
return f.normal.z < thresh; return f.normal.z < thresh;
}; };
geo.faces.filter(filter).forEach(face => { let position = geo.attributes.position;
let a = geo.vertices[face.a]; let { itemSize, count, array } = position;
let b = geo.vertices[face.b]; for (let i = 0; i<count; i += 3) {
let c = geo.vertices[face.c]; let ip = i * itemSize;
let a = new THREE.Vector3(array[ip++], array[ip++], array[ip++]);
let b = new THREE.Vector3(array[ip++], array[ip++], array[ip++]);
let c = new THREE.Vector3(array[ip++], array[ip++], array[ip++]);
// skip tiny faces // skip tiny faces
if (BASE.newPolygon().addPoints([a,b,c]).area() < min) { if (BASE.newPolygon().addPoints([a,b,c]).area() < min) {
return; continue;
} }
tp(new THREE.Vector3().add(a).add(b).add(c).divideScalar(3)); tp(new THREE.Vector3().add(a).add(b).add(c).divideScalar(3));
tl(a,b); tl(a,b);
tl(b,c); tl(b,c);
tl(a,c); tl(a,c);
}); }
widget.supports = add; widget.supports = add;
return add.length > 0; return add.length > 0;
}; };