A User's Guide to the Pmw.Blt Plotting Tool
BLT Graph is a highly configurable plotting library for
2D graphs written in Tcl.
A Python interface to BLT Graph is available through a
Python megawidget called
The original documentation of BLT Graph was written for
Tcl programmers (see e.g. the
BLT source forge page or G. A. Howlett's
chapter 7 in M. Harrison (ed): Tcl/Tk Tools,
O'Reilly, 1997). The purpose of
this manual is to document the usage of BLT Graph
in a Python context.
We recommend you to
download the entire HTML document and associated
scripts for local browsing. There is also rough PostScript version of the document.
Note: Pmw.Blt is aimed at programmers, that is, you
can only make graphs by writing Python statements.
This is actually the strength of Pmw.Blt; you can embed
interactive curve plotting in your own scientific applications
and tailor the plotting functionality to your specific needs.
The present guide contains numerous examples that help you get
DemosThe following list of Python programs are examples on Pmw.Blt used in this documentation. Some people prefer to jump directly into running codes rather than reading tutorials and manuals, so if you are one of those, have fun! You can copy the source codes from the browser into an editor, save the text in a file, and execute the file under Python (of course, this requires that you have installed Python with the Pmw and BLT packages).