8.5 Resources
I recommend the book The Visual Display of Quantitative
Information by Edward Tufte (Graphics Press).Although I don't demonstrate their use in this book,
I want to mention two more full-featured graphics software packages
that are free, and very useful if you'll be doing
graphics to any extent:ImageMagick and its Perl interface module
Image::Magick is a valuable tool, especially for
creating images. Over 60 different file formats are supported,
compared to the much more limited number in GD. A wide range of
image-manipulation techniques are supported, enabling you to create
animation, thumbnails, and apply many image processing functions, for
example.The Gimp (GNU Image Manipulation Program)
is very much like the Photoshop program. It has an interface to Perl
scripts that is built-in, and there are several modules, starting
with the Gimp.pm module, that provide Perl
programmers with access to its functionality.
Between GD, Gimp, and ImageMagick, the Perl programmer has ready
access to a host of image creation and manipulation software, at no
cost. |
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