------------------------------------------------------------------------ Chart version 1.1 ------------------------------------------------------------------------ ---------- INSTALLING ---------- The usual. perl Makefile.PL make make test make install This should install to your site_perl directory. The test scripts also put samples of the different charts in the samples/ directory. ------------- PREREQUISITES ------------- Lincoln Stein's GD module version 1.20 or higher. ------- CHANGES ------- 1.0.1 - 1.1: Changes done by David Pottage: Plot scales can now have any magnitude. It does not matter if the data covers a range of 100000000000 units or 0.00000000001 units, the scale will be correctly calculated. Ticks on plot scales are now plotted on 'round' numbers. The number & spacing of ticks is chosen based on the data range. False zero graphs are now explicitly supported, and will be generated if the data range merits it. The instance field 'include_zero' should be set to zero to suppress this. Added: include_zero, min_y_ticks, max_y_ticks, integer_ticks_only 1.0 - 1.0.1: Fixed _draw_bottom_legend in Base.pm 0.99c-pre3 - 1.0: Fixed _draw_data in Lines.pm: lines are limited to the frame Added f_x_tick, f_y_tick Added jpeg(), cgi_jpeg() to produce the format jpeg Delete GIF support, added PNG and JPEG instead 0.99b - 0.99c-pre3: James F Miner : Added Mountain chart type Added Patterns. See t/mountain.t for details Bugfix for drifting x tick Improved internal color handling Richard Dice : Added brush shapes for Points, LinesPoints Added scalar_gif 0.99a - 0.99b: Fixed left legend in composite charts Fixed no color problem when using composite charts w/ no legend Fixed color handling for datasets Added option for http header Pragma: no-cache Netscape 4.5 has a bug that breaks it, but it works with other browsers. Any ideas for a workaround? 0.99 - 0.99a: Added use of undef() values to represent 'no data' for line breaks Added ylabel*_color options Added x_grid_lines, y_grid_lines & y2_grid_lines , and color options for each Cache disabling in cgi header: Reiner Nippes Restored grid_lines option: Heinz-Guenter Kontny Fixed a typo that broke imagemap data storage in Lines charts 0.94 - 0.99: Modified the 'title' option to correctly process newlines Deprecated the 'subtitle' option, will remove it in next release Changed the API for specifying colors Added support for printing to file handles Added Chart::Composite Added 'spaced_bars' to make it easy to differentiate the bars Added 'grey_background' to make plot background grey Added support for negative values in the datasets Added methods to remember and dump imagemap pixel information Included rgb.txt with distribution for WinXX users 0.93 - 0.94: Moved the legend down to be flush with the chart Fixed the long decimal y-tick label problem Fixed (for the last time, hopefully) the pre-5.004 compilation problem Fixed handling of undefined data points Added more colors for the default data colors Added the transparent gif option Added the option for user-specified colors Added the grid_lines option 0.92 - 0.93: Fixed the sort problem Fixed the y-axis label centering problem Fixed pre-5.004 compilation problem Added StackedBars charts ------ MAINTAINER ------ Chart-Group (chart@wettzell.ifag.de) --------- COPYRIGHT --------- Copyright(c) 1997-1998 David Bonner, 1999 Peter Clark, 2001 Chart-Group at BKG. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.