Translations:Line drawing function/15/en

This function gives us a FreeCAD vector (x,y,z) containing the 3D point that lies on the focal plane, just under our mouse cursor. If you are in camera view, imagine a ray coming from the camera, passing through the mouse cursor, and hitting the focal plane. There is our 3D point. If we are in orthogonal view, the ray is parallel to the view direction.