@math.gl/polygon

Polygon Clipping

This feature allows you to clip one polygon with another, effectively finding the intersection area between the two polygons.

const {clipPolygon} = require('@math.gl/polygon');
const subjectPolygon = [[0, 0], [10, 0], [10, 10], [0, 10]];
const clipPolygon = [[5, 5], [15, 5], [15, 15], [5, 15]];
const result = clipPolygon(subjectPolygon, clipPolygon);
console.log(result);

Triangulation

This feature breaks down a polygon into a set of triangles, which can be useful for rendering or computational geometry tasks.

const {triangulate} = require('@math.gl/polygon');
const polygon = [[0, 0], [10, 0], [10, 10], [0, 10]];
const triangles = triangulate(polygon);
console.log(triangles);

Point-in-Polygon Test

This feature checks whether a given point lies inside a polygon, which is useful for hit-testing and spatial queries.

const {isPointInPolygon} = require('@math.gl/polygon');
const polygon = [[0, 0], [10, 0], [10, 10], [0, 10]];
const point = [5, 5];
const isInside = isPointInPolygon(point, polygon);
console.log(isInside);