问题
I have an entity with the geometry set as plane primitive. How can I know the coordinates of the point on which I clicked (on the entity) using the raycaster/cursor component?
The best would be to the know the coordinates in the system in which the vertices of the geometry were defined at the intersection point.
回答1:
Check the click event detail for intersection data.
el.addEventListener('click', function (evt) {
console.log(evt.detail.intersection);
});
This object will contain (https://threejs.org/docs/#api/en/core/Raycaster):
[ { distance, point, face, faceIndex, indices, object }, ... ]
So you can use point to see where you clicked.
来源：https://stackoverflow.com/questions/40294039/how-to-find-the-coordinates-of-a-raycaster-intersection-point-on-an-object-in-a