README
1*** THIS MODULE IS NOW DEPRECATED -- USE GD::Graph INSTEAD ***
2
3This is PNGgraph 1.21, a package to generate PNG charts, using Lincoln
4Stein's GD.pm. It's a wrapper around GD::Graph, provided for backward
5compatibility with existing Chart::PNGgraph scripts only.
6
7This package is deprecated. I would recommend that you use GD::Graph
8directly.
9
10INSTALLATION
11
12needed to install (also see TESTED PLATFORMS):
13
14 perl 5.005 (5.004 might work)
15 GD > 1.18
16 GD::Graph
17 GDTextUtils (for GD::Graph)
18
19to install:
20
21 perl Makefile.PL
22 make
23 make install
24
25to see some samples:
26
27 cd samples
28 make
29
30That should generate a set of pngs, which you can view using the HTML
31pages in the same directory (or whichever other way pleases you).
32
33IMPORTANT CHANGE SINCE VERSION 1.15
34
35Chart::PNGgraph no longer contains any of the code to generate charts. Instead
36it has become a wrapper around GD::Graph. The main reason for this is
37that the two code bases for GIFgraph and Chart::PNGgraph have been
38merged back together, and will be maintained in a single spot again.
39Blame Unisys and their childishness over the LZW patent for all this.
40
41GD VERSIONS
42
43If you want to use a GD version 1.20 or up, you will need to have
44something installed that can do an on-the-fly conversion of PNG to GIF.
45I can't recommend that you do this way, but there may be some obscure
46and odd reason that you want to produce PNG images, but have to use an
47old GD. If you have to: I recommend that you use Image::Magick, since
48that is what the Chart::PNGgraph module has been setup to use. If you
49don't want to, or can't install Image::Magick, you will have to edit the
50file Chart/PNGgraph/Convert.pm to provide a different sub gif2png.
51
52TESTED PLATFORMS
53
54None. In fact the tests have been removed as a reminder that this package
55now exists solely for backward compatibility. If your existing scripts work
56with this module, then that is all that's important at this stage.
57
58AUTHOR
59
60Martien Verbruggen
61mgjv@comdyn.com.au
62
63PNG PORT
64
65Steve Bonds
66sbonds@agora.rdrop.com
67
68COPYRIGHT
69
70Copyright (c) 1995-1999 Martien Verbruggen. All rights reserved.
71Copyright (c) 1999 Steve Bonds. All rights reserved.
72
73This package is free software; you can redistribute it and/or
74modify it under the same terms as Perl itself.
75
76