don't calculate 1 - alpha twice

This commit is contained in:
casperlamboo 2017-01-18 12:05:21 +01:00 committed by Simon Voordouw
parent 52e9ba31e0
commit b3300decb7

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@ -33,8 +33,9 @@ export default function calculateLayersIntersections(lines, settings) {
z = line.start.z;
} else {
const alpha = (y - line.start.y) / (line.end.y - line.start.y);
x = line.end.x * alpha + line.start.x * (1 - alpha);
z = line.end.z * alpha + line.start.z * (1 - alpha);
const alpha1 = 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);