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add spiral layer start point option

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This commit is contained in:
Stewart Allen 2025-09-26 22:04:27 -04:00
commit ac956a3cac
3 changed files with 14 additions and 2 deletions
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11
src/kiri/mode/fdm/prepare.js
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@ -41,6 +41,7 @@ export async function fdm_prepare(widgets, settings, update) {
zneg = 0,
zoff = 0,
zmin = 0,
zmax = 0,
shield,
output = [],
layerout = [];
@ -224,6 +225,7 @@ export async function fdm_prepare(widgets, settings, update) {
}
for (let slice of widget.slices) {
zmin = Math.min(zmin, slice.z);
zmax = Math.max(zmax, slice.z);
if (!slice.supports) {
continue;
}
@ -469,6 +471,8 @@ export async function fdm_prepare(widgets, settings, update) {
let lastExt;
let lastOut;
print.zmax = zmax;
// walk cake layers bottom up
for (let layer of cake) {
// track purge blocks generated for each layer
@ -1474,6 +1478,13 @@ function slicePrintPath(print, slice, startPoint, offset, output, opt = {}) {
// control of layer start point
switch (process.sliceLayerStart) {
case "spiral": {
let center = top.poly.bounds.center();
let angle = (Math.PI * 2) * (slice.z / print.zmax);
let x = center.x + Math.cos(angle)*10000;
let y = center.y + Math.sin(angle)*10000;
startPoint = newPoint(x,y,startPoint.z);
} break;
case "last":
break;
case "random":