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This commit is contained in:
Andras Schmelczer 2026-09-11 20:34:36 +01:00
commit b9485e4097
32 changed files with 4692 additions and 65 deletions
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29
src/lib/skirting.ts
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@ -350,7 +350,12 @@ interface Packed {
}
/** Best-fit decreasing across all rooms, using one purchased board length. */
function pack(source: SkirtingPiece[], stockLength: number, kerf: number): Packed {
function pack(
source: SkirtingPiece[],
stockLength: number,
kerf: number,
exactTails = false,
): Packed {
const pieces = source.map((piece) => ({ ...piece }));
let pending = [...pieces].sort(
(a, b) => b.length - a.length || (a.id < b.id ? -1 : a.id > b.id ? 1 : 0),
@ -360,6 +365,25 @@ function pack(source: SkirtingPiece[], stockLength: number, kerf: number): Packe
while (pending.length) {
let available = stockLength;
const assigned: SkirtingPiece[] = [];
if (exactTails && pending.length > 2) {
const head = pending[0];
const tail = stockLength - consumedLength(head, stockLength, kerf);
const options = pending.slice(1, 129).filter((piece) => fits(piece, tail));
for (const second of options) {
const remaining = tail - consumedLength(second, tail, kerf);
const third = options.find(
(piece) => piece !== second && Math.abs(piece.length - remaining) <= EPS,
);
if (!third) continue;
pending = [
head,
second,
third,
...pending.filter((piece) => piece !== head && piece !== second && piece !== third),
];
break;
}
}
for (const piece of pending) {
if (!fits(piece, available)) continue;
piece.blankLength = blankLength(piece, available);
@ -525,6 +549,7 @@ export function planSkirting(
piece.id = `${prefixes.get(piece.roomId)}${count}`;
}
candidates.push(pack(source, stockLength, settings.kerf));
candidates.push(pack(source, stockLength, settings.kerf, true));
};
// Compare full-stock, balanced, and offcut-led wall joints.
{
@ -540,8 +565,8 @@ export function planSkirting(
}
candidates.sort(
(a, b) =>
(Math.abs(a.waste - b.waste) > EPS ? a.waste - b.waste : 0) ||
a.cuts - b.cuts ||
(Math.abs(a.waste - b.waste) > EPS ? a.waste - b.waste : 0) ||
a.stocks.length - b.stocks.length ||
a.pieces.length - b.pieces.length,
);