Am 30.04.2012 um 11:44 schrieb Viesturs Lācis:

> 2012/4/30 Michael Haberler <mai...@mah.priv.at>:
>> I've integrated the jog-while-paused with the normal Pause,Step and Resume 
>> handling and it approaches usability:
>> 
>> A writeup: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Jog-While-Paused
>> 
>> Branch with demo config: 
>> http://git.mah.priv.at/gitweb/emc2-dev.git/shortlog/refs/heads/jog-while-paused-preview1
>> 
>> feedback welcome
> 
> Nice!
> Did my kinematics module help You?

not directly, but thinking of it kins would be a potential place to cludge a 
touchoff-while-paused for the desparate. I'm sure there's a few side effects 
though.


> Do I understand correctly that current solution provides HAL pins so
> that also MPGs and/or keyboard can be used for jogging?

it provides just a bare minimum HAL-based interface; keyboard jogging through 
NML EMC_AXIS_JOG messages: no; while not hard I thought the sudden 
interpretation change from joints to axis in jog would be potentially 
troublesome. ignoring the issue and 'just making the joint an axis' for the 
purpose of a jog is certainly possible; a more thorough solution would adapt 
jog NML commands so the target interpetation is clear (a set of joints/ a set 
of axes and the corresponding jog increments). That involves some UI work, 
since this wasnt possible so far.

thinking about it I see no good justification why Jog NML Messages cant support 
any mode; alternatively, separate messages. Currently there's no EMC_TRAJ_JOG 
message.  "Just a simple matter of programming".

the wiki page outlines the flow a bit, it is a bit low-level; MPG support 
should be straightforward.

> In that case does it support jogging more than one axis at a time?

yes, since the jog target position really is a pose

> 
> My comment on this is that I do not see use for touch-off during
> pause, because touch-off would be needed, when new tool is inserted in

opinions vary widely on that one

- Michael
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