3D to 2D functions collection

Here is a 3D to 2D functions collection which allow to draw to screen with (x,y,z) coordinates.

The attached zip file contains the source code and a test project (see screenshot attached) which allow to move a planet by changing the x,y,z coords.

I think that my "merchants 2" game will become... "space merchants"

Extremely tidy, smart and well structured, compact source code. Congrats!
I'm trying to put together astronomy software
:sign0098:

I like your style :sign0188:

Regards,
RandomCoder.