Public
Edited
Nov 29
1 fork
2 stars
polygon
TRIANG = {
function TRIANG(polygon, points, distance) {
// initialise Constrained Delaunay Triangulation with polygon
let polygonUsed = usePolygonInterpolation
? interpolatePolygon(polygon, distance)
: polygon;
var swctx = new poly2tri.SweepContext(
polygonUsed.map((p) => new poly2tri.Point(p[0], p[1]))
);
if (useGrid) {
// add grid points as Steiner points if they are inside the polygon
for (var i = 0; i < points.length; i++) {
if (useRobustPointInPolygon) {
if (robustPointInPolygon.default(polygon, points[i]) == -1) {
swctx.addPoint(new poly2tri.Point(points[i][0], points[i][1]));
}
} else {
if (pointInPolygon(points[i], polygon)) {
swctx.addPoint(new poly2tri.Point(points[i][0], points[i][1]));
}
}
}
}
// triangulate
swctx.triangulate();
let triangles = swctx.getTriangles();
return triangles;
}
return TRIANG;
}
triangles.map((t) => t.getPoints().map((p) => [p.x, p.y]))
test = function () {
const pixelTriangleIndex = [];
for (let index = 0; index < triangles.length; index++) {
pixelTriangleIndex[3 * index] = index;
pixelTriangleIndex[3 * index + 1] = index;
pixelTriangleIndex[3 * index + 2] = index;
}
return pixelTriangleIndex;
}
test()
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