import { mat3 } from 'gl-matrix'; import { CreateTransformer } from '../type'; /** * Apply translate transformation for current vector. * @param params [tx, ty] * @param x x of the the bounding box of coordinate * @param y y of the the bounding box of coordinate * @param width width of the the bounding box of coordinate * @param height height of the the bounding box of coordinate * @returns transformer */ export const rotate: CreateTransformer = (params, x, y, width, height) => { const [theta] = params as number[]; const matrix = mat3.create(); return mat3.fromRotation(matrix, theta); };