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clean up create lines

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casperlamboo 2018-02-01 12:23:34 +01:00
parent 64d28affe6
commit 8f475195b8
1 changed files with 12 additions and 8 deletions
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20
src/sliceActions/createLines.js
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@ -10,24 +10,27 @@ function addLine(geometry, lineLookup, lines, a, b, faceIndex) {
lineLookup[`${a}_${b}`] = index; lineLookup[`${a}_${b}`] = index;
const line = new THREE.Line3(geometry.vertices[a], geometry.vertices[b]); const line = new THREE.Line3(geometry.vertices[a], geometry.vertices[b]);
lines.push({ line, faces: [] }); const faces = [];
lines.push({ line, faces });
} }
lines[index].faces.push(faceIndex);
const { faces } = lines[index];
faces.push(faceIndex);
return index; return index;
} }
export default function createLines(geometry, settings) { export default function createLines(geometry, settings) {
const faces = [];
const lines = []; const lines = [];
const lineLookup = {}; const lineLookup = {};
const faces = geometry.faces.map((face, i) => { for (let i = 0; i < geometry.faces.length; i ++) {
const { normal, materialIndex: objectIndex, a, b, c } = geometry.faces[i]; const { normal, materialIndex: objectIndex, a, b, c } = geometry.faces[i];
// skip faces that point up or down // skip faces that point up or down
if (normal.y > .999 || normal.y < -.999) return; if (normal.y > .999 || normal.y < -.999) {
faces.push(null);
continue;
}
const indexA = addLine(geometry, lineLookup, lines, a, b, i); const indexA = addLine(geometry, lineLookup, lines, a, b, i);
const indexB = addLine(geometry, lineLookup, lines, b, c, i); const indexB = addLine(geometry, lineLookup, lines, b, c, i);
@ -35,8 +38,9 @@ export default function createLines(geometry, settings) {
const flatNormal = normalize({ x: normal.z, y: normal.x }); const flatNormal = normalize({ x: normal.z, y: normal.x });
const lineIndexes = [indexA, indexB, indexC]; const lineIndexes = [indexA, indexB, indexC];
return { lineIndexes, flatNormal, objectIndex };
}); faces.push({ lineIndexes, flatNormal, objectIndex });
}
return { lines, faces }; return { lines, faces };
} }