Chaals:

- I mention the fuller zooming functionality because it would be nice to 
have.   Opera is better
than the other sgv viewers I've tried, but could be better.

- If I view the original dot file for the large example with Mac OS X 
Graphviz, I see essentially
the same image, but the memory usage is roughly 100 times less.  Zooming is
continuous and instantaneous.  Memory usage does not increase as one 
zooms from 12% to 800%.
Of course it's not a fair comparison, but I bet it is informative 
regarding underlying computational
issues - how things are stored and such.

Best,

David

============================================================================

Charles McCathieNevile wrote:
> On Wed, 10 May 2006 10:09:22 -0400, David Jaffe <[EMAIL PROTECTED]> 
> wrote:
>
> >> you could try one of the weekly builds of Opera 9 -
> > http://my.opera.com/desktopteam ...
>
> > - Control of zooming.   It would be nice to have fuller control over
> > zooming.  For example,
> > Mac OS X graphviz (for viewing dot files) has a thing you can slide (see
> > attachment zoom.tiff).
> > Ideally, one would also be able to enter a number using the keyboard.
> > Certainly, one should be
> > able to tell at any given time what level of magnification is in effect.
>
> In the top right there is a little box that typically says 100% - you 
> can 
> select a percentage in there to set a zoom, or look there and it will 
> show 
> what your zoom is. (I use 0,9,8,7,6 keys for +10%, -10%, +100%, 
> -roughly100%, =100%), but we don't have arbitrary scaling available.
>
> > - Performance on large examples.  There is an example at
> >
> > ftp://ftp.broad.mit.edu/pub/wga/misc/svg/pairs1.svg
> > [Source: pairs1.dot, same place, via dot -Tsvg pairs1.dot > pairs1.svg,
> > using dot version 2.8 (Tue Mar 21 20:38:23 UTC 2006).]
> >
> > This example loads and displays fine on my Mac.  If one tries to zoom
> > (+100%), it works like a charm
> > about four times, and then on successive zooms, it works, but one hears
> > the hard disk spinning,
> > and it's slow.  It would be nice to provide diagnostics regarding what
> > is going on, e.g. is Opera running
> > out of memory, etc.  If it is running out of memory, why?
>
> If it is running out of memory it is probably trying to count a zillion 
> points and figure out where to put them :) If you want the details you 
> should use some system diagnostic tools - this is beyond the kind of 
> functions we provide in the browser...
>
> > - Can one pan?
>
> Yep, use the arrow keys.
>
> cheers
>
> Chaals
>
> -- 
> Charles McCathieNevile                     [EMAIL PROTECTED]
>    hablo español  -  je parle français  -  jeg lærer norsk
>       Peek into the kitchen: http://snapshot.opera.com/
>
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