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pre calculate bounding boxes

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This commit is contained in:
casperlamboo 2017-07-27 10:35:30 +02:00
parent 4304f7373d
commit ccc88bdb77
1 changed files with 15 additions and 8 deletions
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23
src/sliceActions/optimizePaths.js
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@ -13,6 +13,15 @@ export default function optimizePaths(slices, settings) {
} }
const parts = []; const parts = [];
const boundingBoxes = new WeakMap();
for (let i = 0; i < slice.parts.length; i ++) {
const part = slice.parts[i];
const shape = part.shape.closed ? part.outerLine : part.shape;
const bounds = shape.shapeBounds();
boundingBoxes.set(part, bounds);
}
while (slice.parts.length > 0) { while (slice.parts.length > 0) {
let closestDistance = Infinity; let closestDistance = Infinity;
@ -20,16 +29,14 @@ export default function optimizePaths(slices, settings) {
for (let i = 0; i < slice.parts.length; i ++) { for (let i = 0; i < slice.parts.length; i ++) {
const part = slice.parts[i]; const part = slice.parts[i];
const bounds = boundingBoxes.get(part);
const shape = part.shape.closed ? part.outerLine : part.shape; const topDistance = bounds.top - start.y;
const bounds = shape.shapeBounds(); const bottomDistance = start.y - bounds.bottom;
const leftDistance = bounds.left - start.x;
const rightDistance = start.x - bounds.right;
const top = bounds.top - start.y; const distance = Math.max(topDistance, bottomDistance, leftDistance, rightDistance);
const bottom = start.y - bounds.bottom;
const left = bounds.left - start.x;
const right = start.x - bounds.right;
const distance = Math.max(top, bottom, left, right);
if (distance < closestDistance) { if (distance < closestDistance) {
closestDistance = distance; closestDistance = distance;