"Robert L. Yelvington" <[EMAIL PROTECTED]> writes:
> on 7/5/01 10:15 AM, Arcady Genkin at [EMAIL PROTECTED] wrote:
>
> > While taking a university course I needed to ``squash the competition'' by
> > hacking together quick bar-charts with PHP. These are not very
> > sophisticated, but I liked my approach because they generate very
> > little graphics (read: fast downloads), and when you roll a mouse over
> > a bar, you get numeric value for it. Have a look at:
> > http://www.thpoon.com/408/barchart.php
> > Input is taken from a text file. If anyone is interested in the
> > source code, let me know and I'll release it. The code is rather
> > trivial, though.
>
> They look very nice and usable...just the way i like 'em.
>
> I'd be interested in seeing the source code...you can reply directly to my
> email account if you like! are you using a graphic package like GD? or are
> you using the 'poor mans bar graph' method using tables and percentage
> widths?
Each individual bar is generated with GD, and arranged in a table.
The images are stored in subdirectory "bars" (should be writeable to
Apache). Each bar is given a name like bar_NNN.png, where NNN is its
height in pixels. If a bar of a given name already exists, it is not
re-generated.
I never intended to release the code, so it has some stuff hard-coded,
like the number of columns and the colors, and not commented.
Shouldn't be hard to change, though. Ideally the whole thing would be
organised in a class.
If anyone takes the time to rearrange the code, or improve it
otherwise, I'd like to see the results (although you don't really have
to).
All functions are in a file "barchart.inc":
http://www.thpoon.com/408/barchart.inc.phps
Example of using the functions are in this file:
http://www.thpoon.com/408/barchart.phps
Example input file is here:
http://www.thpoon.com/408/sqattl.txt
Have fun,
--
Arcady Genkin
i=1; while 1, hilb(i); i=i+1; end
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