cvs/src/svgPath/deal.js

A basic canvas framework for 2d drawing.

import pointInPath from './point-in-path'
const getPoints = require('point-at-length')

const cacheMap = new Map()

function get (d) {
  if (cacheMap.has(d)) {
    return cacheMap.get(d)
  }
  const points = getPoints(d)
  cacheMap.set(d, points)
  return points
}

export function getPointAtLength (d, len) {
  const points = get(d)
  return points.at(len)
}

export function getTotalLength (d) {
  const points = get(d)
  return points.length()
}

export function isPointInPath ({path}, x, y) {
  return pointInPath(path, x, y)
}