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don't calculate 1 - alpha twice

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casperlamboo 2017-01-18 12:05:21 +01:00
parent 7f2b8da15f
commit bbda9089d2
1 changed files with 3 additions and 2 deletions
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5
src/sliceActions/calculateLayersIntersections.js
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@ -33,8 +33,9 @@ export default function calculateLayersIntersections(lines, settings) {
z = line.start.z; z = line.start.z;
} else { } else {
const alpha = (y - line.start.y) / (line.end.y - line.start.y); const alpha = (y - line.start.y) / (line.end.y - line.start.y);
x = line.end.x * alpha + line.start.x * (1 - alpha); const alpha1 = 1 - alpha;
z = line.end.z * alpha + line.start.z * (1 - alpha); x = line.end.x * alpha + line.start.x * alpha1;
z = line.end.z * alpha + line.start.z * alpha1;
} }
layerIntersectionPoints[layerIndex][lineIndex] = new THREE.Vector2(z, x); layerIntersectionPoints[layerIndex][lineIndex] = new THREE.Vector2(z, x);