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List:       nmap-dev
Subject:    Re: PNG images in zenmap
From:       David Fifield <david () bamsoftware ! com>
Date:       2009-05-28 21:35:24
Message-ID: 20090528213523.GI11402 () gusto
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On Thu, May 28, 2009 at 02:25:08PM -0700, Fyodor wrote:
> On Thu, May 28, 2009 at 01:36:16AM -0500, J Marlow wrote:
> > Hi all,
> > I've committed a few modifications to my branch (nmap-exp/josh) of
> > zenmap.  It now only uses png images even on systems that support svg.
> >  The reason for this was, on my Linux system loading of svg's took
> > considerably longer than png images.  David did a similar test ad got
> > the same result.  Here is our data:
> > 
> > David's data
> > 
> > PNG:
> > icon load time: 1.68
> > logo load time: 3.24
> > total load time: 4.92
> > 
> > SVG:
> > icon load time: 0.04
> > logo load time: 0.08
> > total load time: 0.12
> 
> Thanks Josh.  I assume this is just mislabeled and SVG was actually
> the one which took 4.92 seconds?

Yes, that was my fault, I labeled them backwards.

> SVG is a more powerful format, but I agree that it isn't worth adding
> 5s to our startup time.  We'll just have to keep the SVG's around in
> SVN and use them to render the icons as properly-sized PNGs when
> needed.

Right, Josh kept them in the source directory but they aren't installed
anymore. There is nowhere in the Zenmap interface where the icons are
shown at anything other than their PNG sizes. The Windows build has
always used PNGs as far as I know and nobody knew the difference. If we
introduce some scalable view then we can think about putting them back.

David Fifield

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