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code formatting

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This commit is contained in:
Stewart Allen 2025-09-22 21:38:02 -04:00
commit d976461ed4
3 changed files with 139 additions and 140 deletions
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124
src/kiri/mode/cam/slice.js
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@ -510,8 +510,7 @@ export async function traces(settings, widget) {
widget.traces = polylines;
return true;
};
}
/**
* Returns an array of arrays of perpindicular triangles in the mesh.
@ -523,110 +522,109 @@ export async function traces(settings, widget) {
* @param {object} opts - options object
* @return {array} - array of arrays of triangle data
*/
export async function cylinders(settings, widget, opts){
let {} = opts ?? {}
let {array:verts} = widget.mesh.geometry.attributes.position
let perpTriangles = []
export async function cylinders(settings, widget, opts) {
let { } = opts ?? {};
let { array: verts } = widget.mesh.geometry.attributes.position;
let perpTriangles = [];
//iterate over all triangles
for(let i = 0; i < verts.length; i+=9){
let a = [verts[i], verts[i+1], verts[i+2]],
b = [verts[i+3], verts[i+4], verts[i+5]],
c = [verts[i+6], verts[i+7], verts[i+8]];
for (let i = 0; i < verts.length; i += 9) {
let a = [verts[i], verts[i + 1], verts[i + 2]],
b = [verts[i + 3], verts[i + 4], verts[i + 5]],
c = [verts[i + 6], verts[i + 7], verts[i + 8]];
//calculate normal
let normal = new THREE.Vector3(a[0]-b[0], a[1]-b[1], a[2]-b[2])
.cross(new THREE.Vector3(b[0]-c[0], b[1]-c[1], b[2]-c[2]))
.normalize()
let normal = new THREE.Vector3(a[0] - b[0], a[1] - b[1], a[2] - b[2])
.cross(new THREE.Vector3(b[0] - c[0], b[1] - c[1], b[2] - c[2]))
.normalize();
// if perpindicular normal, and at least 2 Zs are the same
if(normal.z.round(5) == 0 && ! (a[2] != b[2] && b[2] != c[2])){
if (normal.z.round(5) == 0 && !(a[2] != b[2] && b[2] != c[2])) {
let minZ = Math.min(a[2], b[2], c[2]),
maxZ = Math.max(a[2], b[2], c[2]);
if(minZ == maxZ){ // all Zs are the same indicated malformed geometry
if (minZ == maxZ) { // all Zs are the same indicated malformed geometry
continue;
}
perpTriangles.push({...[a,b,c], normal,minZ,maxZ,i:index})
perpTriangles.push({ ...[a, b, c], normal, minZ, maxZ, i: index });
}
}
//map where zmax, zmin -> triangleData
let cylinderTriangles = new Map()
for(let t of perpTriangles){
let hash = `${t.minZ.round(5)},${t.maxZ.round(5)}`
if(!cylinderTriangles.has(hash)){
cylinderTriangles.set(hash,[])
let cylinderTriangles = new Map();
for (let t of perpTriangles) {
let hash = `${t.minZ.round(5)},${t.maxZ.round(5)}`;
if (!cylinderTriangles.has(hash)) {
cylinderTriangles.set(hash, []);
}
cylinderTriangles.get(hash).push(t)
cylinderTriangles.get(hash).push(t);
}
return Array.from(cylinderTriangles.values())
return Array.from(cylinderTriangles.values());
}
/**
* Find all triangles that are part of the same cylinder as the given triangle
* @param {Widget} widget - widget object
* @param {number} face - index of face in triangle vertex data
* @return {array} - array of all triangle data that belong to the same cylinder
* @requires surface_prep must be called first
*/
/**
* Find all triangles that are part of the same cylinder as the given triangle
* @param {Widget} widget - widget object
* @param {number} face - index of face in triangle vertex data
* @return {array} - array of all triangle data that belong to the same cylinder
* @requires surface_prep must be called first
*/
export function cylinder_find (widget, face){
CAM.surface_prep(widget,false);
return widget.tool.findCylinderSurface(face);
}
export function cylinder_poly_find(widget, face){
export function cylinder_poly_find(widget, face) {
let faces = cylinder_find(widget, face);
let vert = widget.getGeoVertices({ unroll: true, translate: true }).map(v => v.round(4));
let slicer = new cam_slicer(widget,{})
let opts = {
dedup:false,
edges: false,
over:true
}
let firstOffset = faces[0]*9
let [x1,y1,z1,x2,y2,z2,x3,y3,z3]= Array.from(vert.subarray(firstOffset,firstOffset+9))
let zs = [z1,z2,z3].map(z => z.round(5))
let slicer = new cam_slicer(widget, {});
let firstOffset = faces[0] * 9;
let [x1, y1, z1, x2, y2, z2, x3, y3, z3] = Array.from(vert.subarray(firstOffset, firstOffset + 9));
let zs = [z1, z2, z3].map(z => z.round(5));
let zmin = Math.min(...zs);
let zmax = Math.max(...zs);
let zmid = (zmin+zmax)/2
let cylVerts = new Float32Array(faces.length*9)
let zmid = (zmin + zmax) / 2;
let cylVerts = new Float32Array(faces.length * 9);
let opts = {
dedup: false,
edges: false,
over: true
};
let i = 0
//for each cylinder face index
for(let index of faces){
let off = index*9
for (let index of faces) {
let off = index * 9;
//copy the 9 triangle vertices floats in
for(let j = 0;j < 9;j++){
cylVerts[i] = vert[off+j]
i++
for (let j = 0; j < 9; j++) {
cylVerts[i] = vert[off + j];
i++;
}
}
//slice the poly at the midpoint
let poly = slicer.sliceZ(zmid, cylVerts,opts)?.polys?.at(0)
if(!poly) throw "slicing returned no poly"
let poly = slicer.sliceZ(zmid, cylVerts, opts)?.polys?.at(0);
if (!poly) throw "slicing returned no poly";
let circular = poly.circularity() > 0.98;
//throw error if not circular
if(!circular) throw "faces must be circular"
if (!circular) throw "faces must be circular";
//calculate circle properties
let area = poly.area(),
diam = Math.sqrt(area / Math.PI)* 2,
diam = Math.sqrt(area / Math.PI) * 2,
center = poly.calcCircleCenter();
//find direction using normal to center point
//find direction using normal to center point
let point = newPoint(x1, y1, z1),
delta = point.setZ(center.z).sub(center),
normal = new THREE.Vector3(x1-x2, y1-y2, z1-z2)
.cross(new THREE.Vector3(x2-x3, y2-y3, z2-z3)),
normal = new THREE.Vector3(x1 - x2, y1 - y2, z1 - z2)
.cross(new THREE.Vector3(x2 - x3, y2 - y3, z2 - z3)),
dotProd = normal.dot(delta),
interior = dotProd < 0
interior = dotProd < 0
return {faces, zmin, zmax, poly, circular, area, diam, center,interior}
return { faces, zmin, zmax, poly, circular, area, diam, center, interior }
}
/**