Re: XForms: Chart: more than 512 items, remove null line?

From: Rob Fletcher (rpf1@york.ac.uk)
Date: Thu Mar 07 2002 - 10:03:27 EST


# To subscribers of the xforms list from Rob Fletcher <rpf1@york.ac.uk> :

On Thu, 7 Mar 2002 spl@ncmir.ucsd.edu wrote:

> # To subscribers of the xforms list from spl@ncmir.ucsd.edu :
>
> > Yes, but in forms.h it defines FL_CHART_MAX to be 512. If I set it
> > higher, it
> > is reset to 512.
>
> Hm. It does appear that there's a fixed internal array size. I'll
> see what can be done to change that. It may be that we can allocate
> it dynamically.

Good idea. Fixed arrays should be banned, eh Steve?

>
> What are you trying to display? A histogram, perhaps? If so, then
> the XYPlot object may be better suited to your application.
>

I used XYPlot obj for dynamic histograms to show the distribution of
colours in an incoming video image which was being used in an application
designed to help "tune" a set of parameters to feed into a video tracking
program (it tracked "coloured" objects!).

Rob.

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| Dr R P Fletcher (Rob) | Email R.Fletcher@york.ac.uk |
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