btmon polarity?

[mattm55]

Hello,

I tried searching and didn't find a diffinitive answer to my question below.

I have my GEM setup thru GreenEye config and all my values for channels are displaying positive values. So now I have "btmon" running and my values are being picked up as negative (through --print) values. The only channel not negative in btmon's --print is ch1 but that still gets sent to SEGMeter as negative.

I saw mention of SEG's polarity reverser (where is that)? or can I do this thru the GEM config and can I add an absolute value switch somewhere to just ignore (-).

Thanks, matt

[mwall]

hi matt,

the '--reverse-polarity' option to btmon will invert the polarity on all channels.

m

[mattm55]

Hmmm,

You could have just said, "Matt - have you read the documentation lately?"


Edit: Would there be a way to add this switch to the cfg file too? Something like

[options]
reverse-polarity = true

Thanks for the help on that.

Matt

[mwall]

Would there be a way to add this switch to the cfg file too? Something like

[options]
reverse-polarity = true

matt,

did you try this? it should just work, since almost all of the command-line options can be specified in the configuration file.

i added a polarity section to the btmon guide.

http://lancet.mit.edu/mwall/projects/po ... howto.html

m

[mattm55]

No, I didn't try that but will. I tried setting the switch in my shortcut but that didn't work as expected. To test it, I modified the btmon.py to true just to try it and it is working (values as expected) so I will go back and fix file and update my cfg.

Thanks, Matt

Update: Yup, I added that and it didn't work for me. It doesn't startup with that option value.

[mwall]

the hyphens must be underscores in the configuration file, so

Code: Select all

--reverse-polarity

becomes

Code: Select all

reverse_polarity

[mattm55]

That did the trick.

Update: OK, it started but did not set "-" to positives like the mod to the script did. So, not sure if the options for that work?

Thanks again for all the help... and the script.

Matt