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List:       kde-edu-devel
Subject:    [kde-edu-devel] proposal for additional edu library
From:       Jason Harris <kstars () 30doradus ! org>
Date:       2003-07-01 18:51:56
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Hello,

I have written a pretty generic data-plotting widget for some tools in KStars 
(Altitude vs. TIme plotter, Solar system viewer, Jupiter moons plotter 
(TBD)).  After testing the latest version of Kalzium (which includes a 
similar data-plotting tool), I suggested to Carsten that he might want to use 
my widget in Kalzium too, and he agreed that it would be useful to him.

Basically, the widget lets you define "Plot objects" which are lists of data 
points and their plot charactersitics (color, size, whether they are 
connected with a line, etc).  You also set the limits of the plot. 
The widget draws the plot axes (with smart placement of tickmarks and tick 
labels) and all of its plot objects.

So, in the interest of sharing code without having to duplicate it, I'd like 
to add a "kdeeduplot" library (containing the KPlotWidget class and a few 
support classes, including KPlotObject) to libkdeedu.

I have already added the necessary files to my local CVS copy; you can obtain 
these files here:
http://www.30doradus.org/kdeeduplot.tar.gz
Unpack it in your CVS directory, under kdeedu/libkdeedu/.  If you compile and 
install the library, you can compile and run this demo program to see it in 
action:
http://www.30doradus.org/testplot-0.1.tar.gz

Any comments or objections?  May I add this to CVS?

regards,
Jason

-- 
KStars:  A K Desktop Planetarium
http://edu.kde.org/kstars
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