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Top 10 Examples of "delaunator in functional component" in JavaScript

Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'delaunator' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.

import Delaunator from 'delaunator';

// Zipped points [x0, y0, x1, y1, ...]
const zippedPoints = [168, 180, 168, 178, 168, 179, 168, 181, 168, 183, 167, 183, 167, 184];
const zipped = new Delaunator(zippedPoints);

// Default [x, y]
const defaultPoints = [[168, 180], [168, 178], [168, 179], [168, 181], [168, 183], [167, 183], [167, 184]];
const d = Delaunator.from(defaultPoints);

// Custom getX & getY
interface CustomPoint {
    x: number;
    y: number;
}
const customPoints = [{ x: 168, y: 180 }, { x: 168, y: 178 }, { x: 168, y: 179 }, { x: 168, y: 181 }, { x: 168, y: 183 }, { x: 167, y: 183 }, { x: 167, y: 184 }];

const getX = (point: CustomPoint) => point.x;
const getY = (point: CustomPoint) => point.y;

Delaunator.from(customPoints, point => point.x, point => point.y);
Delaunator.from(customPoints, getX, getY);

// To get the coordinates of all triangles, use:
const triangles = d.triangles; // $ExpectType Uint32Array
// Default [x, y]
const defaultPoints = [[168, 180], [168, 178], [168, 179], [168, 181], [168, 183], [167, 183], [167, 184]];
const d = Delaunator.from(defaultPoints);

// Custom getX & getY
interface CustomPoint {
    x: number;
    y: number;
}
const customPoints = [{ x: 168, y: 180 }, { x: 168, y: 178 }, { x: 168, y: 179 }, { x: 168, y: 181 }, { x: 168, y: 183 }, { x: 167, y: 183 }, { x: 167, y: 184 }];

const getX = (point: CustomPoint) => point.x;
const getY = (point: CustomPoint) => point.y;

Delaunator.from(customPoints, point => point.x, point => point.y);
Delaunator.from(customPoints, getX, getY);

// To get the coordinates of all triangles, use:
const triangles = d.triangles; // $ExpectType Uint32Array
const halfedges = d.halfedges; // $ExpectType Int32Array
const hull = d.hull; // $ExpectType Uint32Array
const coords = d.coords; // $ExpectType ArrayLike | Float64Array
const coordinates: number[][][] = [];
for (let i = 0; i < triangles.length; i += 3) {
    coordinates.push([
        defaultPoints[triangles[i]],
        defaultPoints[triangles[i + 1]],
        defaultPoints[triangles[i + 2]]
    ]);
}

// Or use Delaunator.coords (but coords is a flat array in the form of [x0, y0, x1, y1, ...])
// Default [x, y]
const defaultPoints = [[168, 180], [168, 178], [168, 179], [168, 181], [168, 183], [167, 183], [167, 184]];
const d = Delaunator.from(defaultPoints);

// Custom getX & getY
interface CustomPoint {
    x: number;
    y: number;
}
const customPoints = [{ x: 168, y: 180 }, { x: 168, y: 178 }, { x: 168, y: 179 }, { x: 168, y: 181 }, { x: 168, y: 183 }, { x: 167, y: 183 }, { x: 167, y: 184 }];

const getX = (point: CustomPoint) => point.x;
const getY = (point: CustomPoint) => point.y;

Delaunator.from(customPoints, point => point.x, point => point.y);
Delaunator.from(customPoints, getX, getY);

// To get the coordinates of all triangles, use:
const triangles = d.triangles; // $ExpectType Uint32Array
const halfedges = d.halfedges; // $ExpectType Int32Array
const hull = d.hull; // $ExpectType Uint32Array
const coords = d.coords; // $ExpectType ArrayLike | Float64Array
const coordinates: number[][][] = [];
for (let i = 0; i < triangles.length; i += 3) {
    coordinates.push([
        defaultPoints[triangles[i]],
        defaultPoints[triangles[i + 1]],
        defaultPoints[triangles[i + 2]]
    ]);
}
import Delaunator from 'delaunator';

// Zipped points [x0, y0, x1, y1, ...]
const zippedPoints = [168, 180, 168, 178, 168, 179, 168, 181, 168, 183, 167, 183, 167, 184];
const zipped = new Delaunator(zippedPoints);

// Default [x, y]
const defaultPoints = [[168, 180], [168, 178], [168, 179], [168, 181], [168, 183], [167, 183], [167, 184]];
const d = Delaunator.from(defaultPoints);

// Custom getX & getY
interface CustomPoint {
    x: number;
    y: number;
}
const customPoints = [{ x: 168, y: 180 }, { x: 168, y: 178 }, { x: 168, y: 179 }, { x: 168, y: 181 }, { x: 168, y: 183 }, { x: 167, y: 183 }, { x: 167, y: 184 }];

const getX = (point: CustomPoint) => point.x;
const getY = (point: CustomPoint) => point.y;

Delaunator.from(customPoints, point => point.x, point => point.y);
const yColors = opts.yColors === 'match'
    ? xColors
    : processColorOpts(opts.yColors)

  console.log(xColors, yColors)

  const xScale = chroma.scale(xColors).mode(opts.colorSpace)
  const yScale = chroma.scale(yColors).mode(opts.colorSpace)

  // Our next step is to generate a pseudo-random grid of {x, y , z} points,
  // (or to simply utilize the points that were passed to us)
  const points = opts.points || getPoints(opts, rand)
  // window.document.body.appendChild(debugRender(opts, points))

  // Once we have the points array, run the triangulation:
  var geomIndices = Delaunator.from(points).triangles

  // And generate geometry and color data:

  // use a different randomizer for the color function so that swapping
  // out color functions, etc, doesn't change the pattern geometry itself
  const colorRand = seedrandom(opts.seed ? opts.seed + 'salt' : undefined)
  const polys = []
  for (let i = 0; i < geomIndices.length; i += 3) {
    const vertices = [
      points[geomIndices[i]],
      points[geomIndices[i + 1]],
      points[geomIndices[i + 2]]
    ]

    const {width, height} = opts
    const norm = num => Math.max(0, Math.min(1, num))
_init() {
    const d = this._delaunator, points = this.points;

    // check for collinear
    if (d.hull && d.hull.length > 2 && collinear(d)) {
      this.collinear = Int32Array.from({length: points.length/2}, (_,i) => i)
        .sort((i, j) => points[2 * i] - points[2 * j] || points[2 * i + 1] - points[2 * j + 1]); // for exact neighbors
      const e = this.collinear[0], f = this.collinear[this.collinear.length - 1],
        bounds = [ points[2 * e], points[2 * e + 1], points[2 * f], points[2 * f + 1] ],
        r = 1e-8 * Math.sqrt((bounds[3] - bounds[1])**2 + (bounds[2] - bounds[0])**2);
      for (let i = 0, n = points.length / 2; i < n; ++i) {
        const p = jitter(points[2 * i], points[2 * i + 1], r);
        points[2 * i] = p[0];
        points[2 * i + 1] = p[1];
      }
      this._delaunator = new Delaunator(points);
    } else {
      delete this.collinear;
    }

    const halfedges = this.halfedges = this._delaunator.halfedges;
    const hull = this.hull = this._delaunator.hull;
    const triangles = this.triangles = this._delaunator.triangles;
    const inedges = this.inedges.fill(-1);
    const hullIndex = this._hullIndex.fill(-1);

    // Compute an index from each point to an (arbitrary) incoming halfedge
    // Used to give the first neighbor of each point; for this reason,
    // on the hull we give priority to exterior halfedges
    for (let e = 0, n = halfedges.length; e < n; ++e) {
      const p = triangles[e % 3 === 2 ? e - 2 : e + 1];
      if (halfedges[e] === -1 || inedges[p] === -1) inedges[p] = e;
import noderesolve from "rollup-plugin-node-resolve";
import {terser} from "rollup-plugin-terser";
import * as meta from "./package.json";

const config = {
  input: "src/index.js",
  external: Object.keys(meta.dependencies || {}).filter(key => /^d3-/.test(key)),
  output: {
    file: `dist/${meta.name}.js`,
    name: "d3",
    format: "umd",
    indent: false,
    extend: true,
    banner: `// ${meta.homepage} v${meta.version} Copyright ${(new Date).getFullYear()} ${meta.author.name}
// https://github.com/mapbox/delaunator v${require("delaunator/package.json").version}. Copyright 2019 Mapbox, Inc.`,
    globals: Object.assign({}, ...Object.keys(meta.dependencies || {}).filter(key => /^d3-/.test(key)).map(key => ({[key]: "d3"})))
  },
  plugins: [
    noderesolve()
  ]
};

export default [
  config,
  {
    ...config,
    output: {
      ...config.output,
      file: `dist/${meta.name}.min.js`
    },
    plugins: [
export default function getDelaunayGraph(vertices, getX, getY) {
  const delaunay = new Delaunay(vertices, getX, getY);
  const triangles = delaunay.triangles;
  // const triangles = Delaunay.triangulate(vertices)
  const triangulationGraph = createGraph()
  vertices.forEach(v => {
    triangulationGraph.addNode(v.id, v);
  });

  for (let i = triangles.length; i;) {
    --i
    const first = vertices[triangles[i]]
    --i
    const second = vertices[triangles[i]]
    --i
    const third = vertices[triangles[i]]

    addTriangulationLink(first.id, second.id, triangulationGraph)
constructor(points) {
    this._delaunator = new Delaunator(points);
    this.inedges = new Int32Array(points.length / 2);
    this._hullIndex = new Int32Array(points.length / 2);
    this.points = this._delaunator.coords;
    this._init();
  }
  update() {
this.random = seedrandom(props.seed);
		this.poisson = new Poisson([150, 150], 100 / this.props.density, 100, 30, this.random);
		this.points = this.poisson.fill()
			.map(([x, y]) => [x - 25, y - 25])
			.filter(point => pointInPolygon(point, this.thickerX));

		const hue = this.random() * 360;
		this.hues = [
			hue,
			hue + props.hueShift,
			hue - props.hueShift,
			hue + props.hueShift * 2,
		];

		this.triangles = Delaunay.from(this.points).triangles;

		this.triangleColours = range(this.triangles.length / 3).map(i =>
			this.getColor(this.points[this.triangles[i * 3]])
		);
	}

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