Class PointerDragHelper

Example

const pointerDragHelper = new PointerDragHelper()
pointerDragHelper.element = canvas
pointerDragHelper.addEventListener('dragStart', (e) => {
   console.log('dragStart', e.pointer)
   // {x: -0.5, y: 0.5, time: 123456789}
   // x and y are NDC coordinates, time is the time when the event is fired.
   // x and y are in the range of [-1, 1].
   // x is left to right, y is bottom to top.
   // time is in milliseconds.
})
pointerDragHelper.addEventListener('drag', (e) => {
  console.log('drag', e.pointer)
  // {x: -0.5, y: 0.5, time: 123456789}
})
pointerDragHelper.addEventListener('dragEnd', (e) => {
 console.log('dragEnd', e.pointer)
 // {x: -0.5, y: 0.5, time: 123456789}
})
Copy