如何在a帧中找到对象上光线投射器相交点的坐标？
问题描述：
我有一个实体，其几何设置为平面图元。如何知道使用raycaster /光标组件在实体上单击的点的坐标？
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?
最好是知道在交点处定义几何顶点的系统。
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.
答
检查单击事件详细信息以获取交点数据。
Check the click event detail for intersection data.
el.addEventListener('click', function (evt) {
console.log(evt.detail.intersection);
});
该对象将包含（ https://threejs.org/docs/#api/en/core/Raycaster ）：
[ { distance, point, face, faceIndex, indices, object }, ... ]
因此您可以使用 point 查看点击的位置。
So you can use point to see where you clicked.