Zoomable Visual Transformation Machine

Yep, this works for my current test cases; it behaves as I expected. Feel
free to close this out and I'll submit another report if this becomes an
issue in the future. Thanks!

It seems to work fine (in the sense that it does not break my ZGRViewer
test cases). I've committed a new version of SVGReader (not exactly your
patch, but should behave appropriately). In SVN since 20080623. In ZVTM
0.9.7-SNAPSHOT. Let me know if it works for you.

It probably wouldn't break anything, and it would indeed be more general.
I'll fix this and see if it has any consequence on ZGRViewer. If it does
not, then I'll commit this to the trunk.

Yes, that explicit check for the <title> tags is not allowing the 'id'
attr to be assigned to the Metadata when importing the SVG. I'm using a
custom SVG file that wraps different svg element types by using the <g>
tag; essentially grouping things like text, rect, and polygons. I need the
'id' attribute in the <g> tag in order to assign the Glyph owners
appropriately. I will have to include <title> tags in all of my <g> tags
to retrieve this data, unless you remove that explicit check. I removed
this on my end (see patch) and the data propagates correctly. I just
wasn't sure if you wanted to leave the check in place because of DOT
requirements or other requirements I'm not aware of. I didn't want to
break the ZGR Viewer. :)

I don't think this is a requirement. The reason for this is probably that
there was no reason to create a context if no information had to be
propagated (lazy instantiation of context). Are there cases where
contextual information is not propagated in the current implementation?