Re: SVG and compound images


Subject: Re: SVG and compound images
From: F J Franklin (F.J.Franklin@sheffield.ac.uk)
Date: Fri May 04 2001 - 08:36:11 CDT


On Fri, 4 May 2001, Leonard Rosenthol wrote:
> At 10:34 AM 5/4/2001 +0100, F J Franklin wrote:
> >Hi, I'm currently working on WMF -> SVG translation as part of libwmf2.
> Have you talked with Bob Friesenhahn
> (<mailto:bfriesen@simple.dallas.tx.us>) from the ImageMagick team? Bob has
> already been working with Dom on this and has such functionality already
> integrated into IM.
> You missed a big choice - ImageMagick!! It already includes a
> good implementation of SVG, supports reading in WMF files (and outputting
> as SVG, or just rendering them) and is open source.

Thanks for the feedback. I do know about Bob Friesenhahn though I haven't
heard from him recently. I don't use ImageMagick, though I have built it a
few times, and I `stole' from its BMP coder when writing libwmf2, and
don't know anything about its SVG support.

The goal of writing WMF -> SVG is cutting out all the intermediate steps,
and hopefully getting better results. Especially since ImageMagick's WMF
coder is based on libwmf, not on the yet-to-be-officially-released
libwmf2, and is not yet fully featured - but correct me if I'm wrong.

Plus, there's abiword to consider, keeping the number of additional
libraries and dependencies to a minimum, which is a bit of a joke with
ImageMagick (though not with a mini-ImageMagick etc. etc. etc.).

libwmf2 links with libpng, zlib, freetype (2); optionally libjpeg;
optionally expat or libxml2; optionally other stuff.

> >The difficulty arises when (a) there are multiple raster images; and/or
> >(b) there is a mixture of raster and vector graphics.
>
> Why is that a problem? SVG fully supports raster images - either
> inline or external.

I stand corrected. Happily. I'm fairly new to SVG.

What is the format for inline images?

Regards, Frank

Francis James Franklin
F.J.Franklin@shef.ac.uk

Their consultation consisted chiefly in propounding and supporting, for
the thousandth time, each his favourite theories.
                                                   --- George MacDonald



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