getPosision.js

getPosision.js

let point = null
window.addEventListener('mousedown', e => {
  if(point){
    console.log(`x="${point.x / window.innerWidth * 100}vw" y="${point.y / window.innerWidth * 100}vw" width="${(e.clientX + window.scrollX - point.x) / window.innerWidth * 100}vw" height="${(e.clientY + window.scrollY - point.y) / window.innerWidth * 100}vw"`)
    point = null
  } else {
    point = {
      x: e.clientX + window.scrollX,
      y: e.clientY + window.scrollY
    }
  }
})