2008-08-19 11:19:55 +00:00
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* What is this package?
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PyChart is a Python library for creating professional quality PS, PDF,
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PNG, or SVG charts. It supports line plots, bar plots, range-fill
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plots, and pie charts. Because it is based on Python, you can make
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the full use of Python's scripting power.
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The PyChart home page is at
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http://www.hpl.hp.com/personal/Yasushi_Saito/pychart
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* What you need
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You need Python (http://www.python.org) version 2.2 or later (on
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Debian GNU/Linux, you need, python-xml package as well). You also need
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Ghostscript (http://www.cs.wisc.edu/~ghost/) to produce PNG
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files.
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Pychart used to require Ghostscript during PS and PDF
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generation to obtain font metric information, but that's no
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longer the case.
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* Platforms supported
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In theory, PyChart works on any platform with Python. In practice,
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I've run PyChart on Linux and Win2000.
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* Installation
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Become a root and do:
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# python setup.py install
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Or, you can set PYTHONPATH environment variable before you start
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Python. For example (in bash):
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% PYTHONPATH=~/PyChart-1.33/pychart python mumbo.py
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* Documentation
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A detailed documentation is found in doc/pychart.
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* Examples
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All the *.py files in the demos/ directory can be run directly. For
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example,
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setenv PYTHONPATH ..
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python linetest.py >foo.eps
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gs foo.eps
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or
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setenv PYTHONPATH ..
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setenv PYCHART_OPTIONS="format=pdf"
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python linetest.py >foo.pdf
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acroread foo.pdf
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* About the author
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Yasushi Saito (ysaito@hpl.hp.com), a full-time researcher and
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part-time hacker. This program is created mainly to serve my personal
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needs to write pretty charts for research papers. As such, it is
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updated only when I'm writing a paper, which happens about once every
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half year or so.
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Anyway, if you have comments, requests, or (even better)
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fixes/enhancements, feel free to email me.
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