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Re: Plotting performance with cywin running under Win7


From: marco atzeri
Subject: Re: Plotting performance with cywin running under Win7
Date: Thu, 13 Jun 2013 18:18:59 +0200
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130509 Thunderbird/17.0.6

Il 6/13/2013 5:11 PM, Matthew Reich ha scritto:
Hello Francesco Potortì,

Thank you for pointing to plotdecimate.  It will be useful.
However, for the task at hand, plot is significantly faster than using 
plotdecimate.  Given the size some data records, 10^4 to 10^7 elements, 
impressively fast.  And, without setting the RES parameter, decimation removes 
the very low duty cycle pulses which are important in the records.

Also, the main problem is unrelated to record size.  All plot windows turn gray 
after moving them, and sometimes after creating subsequent figures.  Convincing 
them to redraw usually takes some GUI interaction.  While redrawing rate scales 
with record size, the delay itself is not a significant problem. Disappearing 
window contents is the problem.

Any suggestions?

Thank you,
M.Reich


Matthew,
just tested 2D plot up to 1E6 points

fltk is faster than gnuplot but both are reasonable fast.

The grey effect that sometime hide the plot is likely due to the
fltk library focus problem on fltk-1.3.1.9857-1

For what I see it is enough to point the mouse on the figure and than on the xterm to have a full immediate redraw.

I will look if the problem disappears with following
fltk library versions.


Regards
Marco




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