From: David Ishmael <dishmael@...>
Date: 2006-03-21T00:59:32+09:00
Subject: Real-Time Graphing

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Hello all .

 

I'm still kind of new to Ruby and trying to graph data in real-time but I
can't seem to find a suitable graphing engine.  I've sniffed around using my
friend Google, but I didn't find anything concrete.  Has anyone out there
done a GUI graph that updates in real-time (something simple like a line
chart)?  Here's some pseudocode to help get my point across:

 

graph = SomeGraphEngine.new

graph.type = "line"

 

xvalues = Array.new

yvalyes = Array.new

 

for num in ( 0 .. 36 )

            xvalues << Float( num * 10.0 + 50 )

            yvalues << Float( Math.sin( num * Math.pi / 15.0 ) * 16.0 )

graph.coords( xvalues, yvalues )

graph.draw

end

 

 

 

-Dave


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