a simple 3d rendering library + simple CAD
- Projection of 3D coordinates to 2D window.
- Using the mouse to zoom, pan, rotate on all 3 axis.
- Selectable points and lines.
- Points can be linked with a line.
- Simplifying the code as much as possible. Currently, using only tkinter+numpy.
- Selected line can be chamfered.
- adding some CAD functions.
- Removing numpy and using only built-in tools. :)
