To Transform Point

Hello, panda3d works with perspective projection. He would like to know how I make to transform a gotten point into the space, in the axles
(x, y, z) in a normalized point that and shown in the window in the axles (x,y).

Thank you!

The answer is in this post:

Thank you, You knows as I can make to make the inverse one. With a point in the axle (x,y) of the window to get the corresponding value in the world.

Thank You