I fixed a bug today and found that the emf round trip test no longer worked. (This has nothing to do with the bug I was working on, which just changed a couple of scale factors related to dashed lines.) The round trip test works like this (sorry about the wrap):
$INK --file=/usr/local/src/libUEMF/dist/test_libuemf_ref.emf --export-emf=/tmp/test1.emf $INK --file=/tmp/test1.emf --export-emf=/tmp/test2.emf $INK --file=/tmp/test2.emf --export-emf=/tmp/test3.emf
$READEMF /tmp/test1.emf > /tmp/test1_emf.txt $READEMF /tmp/test2.emf > /tmp/test2_emf.txt $READEMF /tmp/test3.emf > /tmp/test3_emf.txt
afterwards "diff" of any of pair of the test*_emf.txt pairs would show only the one line associated with the name change.
Not anymore though. Now they differ from each other a lot. When the emf files produced are viewed in inkscape they appear to be the same. However, the text dumps of the EMF files are wildly different, apparently because the object order is no longer the same. That is, the input stage is seeing the objects in one order, and the output stage is seeing them in another. The reordering seems to be repeatable, that is, if test1.emf is loaded and saved as test9.emf, then the text dump of that is the same as test2.emf (other than the file name field.)
The same test with WMF is still stable, but that is a much, much simpler and smaller test file.
What has changed in Inkscape that would be causing this?
Thanks,
David Mathog mathog@...1176... Manager, Sequence Analysis Facility, Biology Division, Caltech