[cairo] Cairo and SVG

[Alan W. Irwin]

On 2007-12-24 10:33+0100 Emmanuel Pacaud wrote:

> I have concrete evidence that Inkscape, librsvg, mozilla and batik
> display correctly the text in the SVG files produced byt he cairo SVG
> backend.
>
> Imagemagick display command doesn't. And fails to render the following
> test:
>
> http://www.w3.org/Graphics/SVG/Test/20061213/htmlObjectHarness/full-struct-symbol-01-b.html

Thanks for that additional information.  I will fill in the appropriate bug
reports (Debian and possibly upstream) for ImageMagick since until this bug
is fixed a lot of users will try ImageMagick (which is normally reliable
since it has such a huge userbase) and wrongfully conclude there is
something wrong with the SVG backend to libcairo.

Can somebody with OS X access try that same file for firefox on OS X?  I
just received a report it is that OS X SVG viewer that drops text for our
svgcairo results.  Note, that in contrast firefox (iceweasel) gives good
text results on Debian testing.  Older versions of firefox used independent
applications for viewing svg so perhaps that is what is happening for
firefox on OS X.

Thanks also for your explanation of the validation errors.  My further
reading about the SVG standards confirms your interpretation.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
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