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track area/surface minz and re-apply for op area

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This commit is contained in:
Stewart Allen 2025-12-16 22:31:59 -05:00
commit 21dd650c1e
1 changed files with 14 additions and 9 deletions
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21
src/kiri/mode/cam/op-area.js
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@ -46,10 +46,11 @@ class OpArea extends CamOp {
// selected area polygons: surfaces and edges
let { devel, edgeangle } = settings.controller;
let polys = [];
let stack = [];
let surfaces = this.surfaces = [];
let areas = this.areas = [ stack ];
let polys = [];
let aminz = Infinity;
function newArea() {
if (stack.length) {
@ -65,7 +66,9 @@ class OpArea extends CamOp {
// gather area selections
for (let arr of (op.areas[widget.id] ?? [])) {
polys.push(newPolygon().fromArray(arr));
let poly = newPolygon().fromArray(arr);
aminz = Math.min(aminz, poly.minZ());
polys.push(poly);
}
// connect open poly edge segments into closed loops (when possible)
@ -76,24 +79,25 @@ class OpArea extends CamOp {
let vert = widget.getGeoVertices({ unroll: true, translate: true }).map(v => v.round(4));
let faces = CAM.surface_find(widget, (op.surfaces[widget.id] ?? []), (follow ?? edgeangle ?? 5) * DEG2RAD);
let fpoly = [];
let fminz = Infinity;
for (let face of faces) {
let i = face * 9;
fpoly.push(newPolygon()
.add(vert[i++], vert[i++], fminz = Math.min(fminz, vert[i++]))
.add(vert[i++], vert[i++], fminz = Math.min(fminz, vert[i++]))
.add(vert[i++], vert[i++], fminz = Math.min(fminz, vert[i++]))
.add(vert[i++], vert[i++], aminz = Math.min(aminz, vert[i++]))
.add(vert[i++], vert[i++], aminz = Math.min(aminz, vert[i++]))
.add(vert[i++], vert[i++], aminz = Math.min(aminz, vert[i++]))
);
}
// remove invalid edges (eg. when vertical walls are the only selection)
fpoly = fpoly.filter(p => p.area() > 0.001);
// add in unioned surface areas
polys.push(...POLY.setZ(POLY.union(fpoly, 0.00001, true), fminz));
polys.push(...POLY.setZ(POLY.union(fpoly, 0.00001, true), aminz));
// smoothing for jaggies usually caused by vertical walls
if (smoothVal)
if (smoothVal) {
polys = polys.map(poly => POLY.offset(POLY.offset([ poly ], smoothVal), -smoothVal)).flat();
POLY.setZ(polys, aminz);
}
// expand selections (flattens z variable polys)
if (Math.abs(expand) > 0) {
@ -144,6 +148,7 @@ class OpArea extends CamOp {
let zroc = 0;
let zinc = 1 / zs.length;
let lzo;
outer: for (;;)
for (let z of zs) {
let slice = newLayer(z);