------------------------------------------------------------------------
Chart version 1.1
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----------
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 <jfm@winternet.com>:
	Added Mountain chart type
	Added Patterns.  See t/mountain.t for details
	Bugfix for drifting x tick
	Improved internal color handling

	Richard Dice  <rdice@shadnet.shad.ca>:
	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 <nippes.r@gmx.de>
	Restored grid_lines option: Heinz-Guenter Kontny <hek@kronos.nic.dtag.de>
	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.
