On 5/5/2012 8:46 AM, gene heskett wrote:
> Does linuxcnc have a utility that can scan a .hal file and draw a flow
> chart? HalShow would appear to be similar, but demands a fully legal hal
> file so that linuxcnc can actually load up and run, so would seem to be of
> no use for troubleshooting a broken .hal. And that is my instant problem.
Gene:
Cast your mind back to mid-October 2011. I posted some messages about my
attempts to do just what you're asking now ("and now for something
completely different---visualizing EMC2 configurations") and put up some
notes on https://sites.google.com/site/manisbutareed. The results were
suggestive to me but the response from y'all was tepid and I put the
project on hold as our involvement with the medical establishment got
more complicated.
The bottom line was that the spaghetti diagrams my first attempt created
were ok for getting an idea of the general arrangement but too hard to
decipher if one wanted to track a particular signal. At some point I
want to go back and try again, this time combining (being lazy) the use
of the Graphviz algorithms to lay out the objects of interest with a
home-grown implementation of one of the path-routing algorithms I read
up on this winter. Then maybe I'll be able to produce the
Manhattan-style schematics folks seem to be expecting.
And welcome to the wonderful world of interpreting the LinuxCNC docs in
order to understand how to parse the network descriptions. I stubbornly
implemented my own parser, in part because I wanted a tool that
1) I could use away from an installation of LinuxCNC, whether realtime
or simulator,
2) that could diagram hal configurations for components as yet not
defined in LinuxCNC whether implicitly or explicitly (using comp),
3) and that might also be able to say something intelligent about bogus
hal files.
I had to make assumptions and I needed those pesky arrows to
disambiguate inputs and outputs. (Since one option in halcmd is to
generate output with those arrows included, I already often used
LinuxCNC to add them to my input files.) In retrospect, I may give up
this design goal and just use a vampire tap on LinuxCNC instead.
Bottom line is, I wish I hadn't been distracted over the winter so I had
a ready-to-run tool to offer you now. Sigh.
Regards,
Kent
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