best GUI library for vector drawing program

[pachiburke at gmail.com]

On Aug 17, 3:27 pm, chewie54 <dfabrizi... at gmail.com> wrote:

> What would be the best cross-platform GUI library to use for a vector
> based CAD program ( something like Visio on Windows )   WxWidgets,
> Tk,   PyQt,  Java Swing,  Java SWT,????   I need the capibility to
> draw and edit in a window that looks like a page of paper so WYSIWYG
> is very important,  and I need to save the drawings in vector based
> file formats like PS, EPS,  SVG, as well as image formats like jpg,
> png, and gif.  Also, the images need to be high resolution so that
> they can be pasted into various other programs in Windows OS,  and
> Linux OS,  and the Mac OS.

You could use pythoncad (www.pythoncad.org) as a base and develop it
further, or even contract its main developer to expand its features to
fulfill your needs and improve it. It's based on the GTK+ toolkit,
written in python and has scripting capabilities. IMHO, it's the most
promising free CAD effort around though even if it's not as mature as
QCad.
You could use it in commercial applications as long as you comply with
the GPL, or the author agrees to dual license it for you, but it would
be very welcome if the improvements are avaliable for all users.

Regards,

Rafael