In order to help evaluate all of the recent NMG work by Richard,
myself, and others, I've written a script that tests whether objects
can be successfully converted to NMG and BoT forms within a given
timeframe while tracking stats. The sh/conversion.sh script is
pretty trivial to use (sh/conversion.sh path/to/file(s).g) as you
just specify file(s) and it'll then automatically attempt to convert
every object.
Here's the output summary for the previous 7.16.10 release (before a
lot of recent NMG/LIBRT/LIBBN changes) on all of our own sample
geometry:
Files: 31
Objects: 9244
Failures: 155 NMG, 185 BoT
NMG conversion: 98.3% (9089 of 9244 objects)
BoT conversion: 98.0% (9059 of 9244 objects)
Success rate: 98.2%
Elapsed: 5382 seconds
Average: 0.6 seconds per object
That's allowing 5min per conversion and is about what I'd expect.
Here's the count when we only allow 5sec per conversion:
Failures: 155 NMG, 185 BoT
Notable already is that 1) the overwhelming majority of objects
convert within just a couple seconds, 2) there's a bug converting NMG
objects into BoTs even though that should be a direct translation,
and 3) the failures are far too many given this is our sample
geometry (we should be 100%).
The script is useful to anyone working on the NMG or LIBRT/LIBWDB
facilities for tessellating and converting. Specifically, it should
tell you if a change has verifiably made things better or worse,
faster or slower, with greater or fewer failures.
I'm running the statistic again on the main code using HEAD now that
several changes are incorporated but anyone can run the scripts with
a simple: ./sh/conversion.sh path/to/file(s).g
Cheers!
Sean
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