Chris Morley wrote: > > Anything is possible, but I'd be very reluctant to go there. Currently > > all distances in HAL are in "machine units". Machine units are the > > units used in the ini file. Typically machine builders in metric places > > will use mm, and in inch places will use inches, but that is up to the > > builder. At the level where most HAL stuff takes place, changing units > > on the fly would be a disaster. > > I tend to agree. Actually if AXIS had a pin such as: > > display-metric-is-on > > then I could do the conversion with a scale component > > Or if AXIS had a pin that had X Y Z etc 'displayed value' > then I could use that directly (even better) > > > > > Halui is a funny beast - it operates at a high level - the user > > interface. But it uses mechanisms designed for low level stuff - HAL. > > The intent of halui was to allow physical input and output devices like > > industrial oil-tite pushbuttons and indicator lamps to be used for > > operator input, so the low/high level connections make sense. But I > > think it is being stretched and twisted far beyond the original intent. > > > I think The reason is people want to change/add a few things display > wise and at the moment there is no way to get access to any of AXIS > internal data that controls that except thru HALUI.
Well, not really. You (and they) have the source code for AXIS. You may be able to make a UI that does most of what AXIS does by using halui and pyvcp, but asking it to mimic what a completely separate UI shows is asking a lot. Remember, EMC is pretty unique in that it allows more than one GUI to operate the machine simultaneously. Halui is not an extension of AXIS, it's an entirely sesparate user interface. If you change the color of the DRO in AXIS, would you expect the color of the DRO to change in tkEMC at the same time? This is what you're talking about - the machine state is not being changed when you set AXIS to display inches vs. mm, so it's unreasonable to expect another UI (halui) to reflect that internal AXIS state change. Of course, if you issue G20/G21 from AXIS (which does effect a machine state change), I would expect all other UIs to show which one is in effect, which they do. > > What is the problem you are trying to solve? > > > > I want to display a pyvcp panel that shows a readout of what AXIS > displays in X Y Z. > halui.relative.pos is perfect right up till you switch AXIS to display > metric . Do you specifically want a pyvcp DRO panel, or are you trying to mimic some of the "screen builder" functionality of other control software? - Steve ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
