I want to view my 3D object on the screen in four different angles
Any one 3d scene (
) can only have one camera. if you want 4 different views then you have to have four
and replicate your 3d world for each of them.
PS: I tried using four times, but I get an error that the method is already defined or something.
You should have shown us what you had tried and the exact error.
Please let me know how to move the camera on 3D screen by dragging the mouse during run-time
This is a Q&A not a "write me an article", the math involved in this and the amount of code well is not easy to understand, especially not when we do not know your level. And there is already tons of articles out there on that subject. E.g.
WPF 3D Primer