Q:

Is there any charting lib for C++?

I have a C++ program that generates some data and i need to generate some charts for that data and to plot some functions.
Is there any free library available that can do that and just generate a png/jpeg(format doesn't matter)?
Google charts is not an option as i want to be able to generate charts even when offline.

A:

Check out http://qwt.sourceforge.net/. It's Qt-based.

