what does "pan" in trackball control mean exactly

Question

What does of the term "Pan" in trackball control in three.js exactly mean?

        controls.rotateSpeed = 1;
        controls.zoomSpeed = .5;
        controls.panSpeed = 1;

What is "panspeed" here?

Answer 1

Panning in trackball control means, the object can be moved from any point to any other point. Panspeed like rotatespeed and zoomspeed will specify how fast or how slow should moving of the object happen. Panning means to just change the position of the object, it does not resize or change axis. Hope this helps.