How to generate G-Code from IGES / DXF / STL etc.?

Does anyone know how to generate G-Code from an IGES file, or STL, etc.?
It is very urgent!!!

2 Answers

You must have a postprocessor, for example FreeMill

(http://www.mecsoft.com/freemill.shtml)

The program generates G-code

Catia has the ability to generate G-code from models