[SI-LIST] Re: Comparing layers on two artworks
- From: Stuart Brorson <sdb@xxxxxxxxxx>
- To: "Kotson, Michael" <mkotson@xxxxxxxxxxx>
- Date: Wed, 16 Apr 2008 17:12:59 -0400 (EDT)
> I'm looking for input on a tool for comparing artwork. I've done a
> quick search of the archives and haven't seen anyone discuss this topic.
If you're using Linux, another option is to try this flow:
1. Generate Gerbers using your layout tool.
2. Read in the Gerbers using the open-source Gerber viewing tool
"gerbv", available here:
http://gerbv.sourceforge.net/
3. Using gerbv, you can export .png files. (Indeed, there should be
a way to just use gerbv as a command line filter to create .png files,
like this: gerbv --export-png GerberFile.gbr
4. Then, you can use the "compare" utility from ImageMagick to
visually compare the two .png files. This is described here:
http://www.imagemagick.org/script/compare.php
Note that I haven't used this flow myself, so I can't warn you against
any gotchas. However, the gerbv build system uses this flow to verify
correctness on a nightly basis (or whenever there is a checkin) so it
should work for you too.
Linux only, however!
Cheers,
Stuart
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