HAL Pin for Coordinate System

I looked and could not find one. Which does not necessarily mean that it does not exist.

However, it might not actually be possible. The working coordinate system is an interpreter state, and the interpreter has generally finished the job by the time motion starts.

A possible workaround is a very small Python programme that creates a HAL pin and updates it, as the coordinate system is available in the linuxcnc.stat() object.

If that sounds like something you could do, documentation is here:
linuxcnc.org/docs/stable/html/hal/halmodule.html
and linuxcnc.org/docs/stable/html/config/python-interface.html

tom.eagan@integrisgp.com wrote:

The application is: I have a pyvcp panel that allows the user to set the coordinate system, 
 

We have rather too many VCP options (PyVCP, GladeVCP. QTVCP, QTPyVCP...) and PyVCP is the oldest and weakest. 

If you converted it to one of the others then I think that the Python handler code could poll the linuxcnc.status() and update itself.