@antv/g-math

Vector Operations

This feature allows you to perform various vector operations such as addition, subtraction, scaling, and normalization. The code sample demonstrates how to add two 2D vectors.

const { vec2 } = require('@antv/g-math');

const v1 = [1, 2];
const v2 = [3, 4];
const result = vec2.add([], v1, v2);
console.log(result); // Output: [4, 6]

Matrix Operations

This feature provides functions for matrix operations such as multiplication, inversion, and transposition. The code sample shows how to multiply two 3x3 matrices.

const { mat3 } = require('@antv/g-math');

const m1 = [1, 0, 0, 0, 1, 0, 0, 0, 1];
const m2 = [2, 0, 0, 0, 2, 0, 0, 0, 2];
const result = mat3.multiply([], m1, m2);
console.log(result); // Output: [2, 0, 0, 0, 2, 0, 0, 0, 2]

Geometry Calculations

This feature includes functions for various geometric calculations like computing the length of a line, finding intersections, and calculating angles. The code sample demonstrates how to calculate the length of a line segment between two points.

const { line } = require('@antv/g-math');

const point1 = [0, 0];
const point2 = [3, 4];
const length = line.length(point1, point2);
console.log(length); // Output: 5