setvar and reactors

How would you change the LTSCALE with a sysvarchanged reactor? I asumed and
confirmed (setvar...) doesn't work as it puts the function into a loop.

Any suggestions on pulling this off? I already have a conditional statement
to test the users current space, but that requires something to call it - it
works, but not automatically as a reactor would.

???
Thanks,
Mark

 

Use vla-setvariable

--

AUTODESK
Authorized Developer
http://www.Cadentity.com
MASi

 

We use that here. In the callback function check the var and only change it
if it is wrong. Then when it fires because you just changed it, it does
nothing else and closes out.

I had thought that I could disable the reactor and then reenable it to start
and close the callback, but that didn't seem to work. If someone knows how
to make that work, I think it would be even better.

HTH,

 

As long as you're not stuck on sysvar changed reactors,
this might give you some ideas. Typically the modelspace
dimension and linetype scales should be saved in a dictionary
or should be derived from the standard scale of the last
viewport used.

(vl-load-com)
(if layswitch (vlr-remove layswitch))
(setq layswitch (vlr-miscellaneous-reactor nil '(vlr-layoutswitched . mglayouts))))

(setq mdimscale 48.0);;typical drawing dimscale

(defun mglayouts (react layout)
;;D. C. Broad, Jr. Demonstration
(cond
((/= "Model" (car layout))
(setvar "ltscale" 0.75)
(setvar "psltscale" 1)
(setvar "dimscale" 0))
(t
(setvar "dimscale" mdimscale)
(setvar "ltscale" (* mdimscale 0.75))))
)

 

Thanks, I will look.
Mark

 

Right tree. I can tell if user switches to modelspace/paperspace/paperspace
vp, depending on were they are, i want to change some settings. I was using
LTSCALE as an example of one setting I may/may not change depending on
current space. Currently looking at sysvarchanged reactor, but that may be
the wrong one since i am changing setvars.

 

Thanks Doug. I have a little test layoutswitch reactor working, but it
wasn't helping me when switching from PS to a PS Viewport. I'm not stuck on
sysvarchanged - taking any suggestions. I want LTSCALE (for example) to
change if any "current space" change is made.

Thanks,
Mark

 

Thanks James, good suggestion of changing only if not correct..
Mark

 

That's ok. I'll have to gleen what I can here. You are well worth whatever
you are charging, but I have no budget here. Thanks for all your help you've
always offered.

Best regards,
Mark

 

Mark,
You should use psltscale=1 to avoid the need to change ltscale
as you move from viewport to viewport. The only thing that
needs to change from viewport to viewport is the text size.
That can be accomplished by revising the text and mtext
commands. Sysvarchanged does work well for this.
All these operations are most effective when the viewports are
display locked.

<snip>

 

Thanks Doug. I have set psltscale to1. this works fine working between ps
and a psvp, but not in model.

Let's say I have a floor plan xrefed into sheet A1 in model. The ltscale is
fine in the floor plan, fine in sheet A1-paperspace, fine in A1
paperspacevp, but wrong in A1 modelspace.

Am I making sense?

Thanks,
Mark

 

maybe tie the ltscale to dimscale then?

in pspace ltscale = factor
in mspace = dimscale of current dimstyle *factor
in mspace thru' viewport lts = factor

psltscale always 1...



--
Jamie Duncan

"How wrong it is for a woman to expect the man to build the world she wants,
rather than to create it herself."
- Anais Nin (1903-1977)

 

Look at the reactor I proposed. It changes the dimscale and
ltscale based on which layout you're in. That solves half of the
problem. Changes to dimscale while in the model tab should affect
certain other things should change with it (text heights and ltscale).
That can be handled with either a sysvar reactor or a command
ended reactor that checks dimscale.

If you decide to use a setvar reactor to change the variables,
you must disable the reactor during the callback and then re-enable
it.

HTH

 

Thank you Jamie.
Mark

 

Thanks again Doug, and everyone else. After much testing last night, I'm
headed in this direction (misc-reator and layoutswitch), and seems to be
going fine. All the different suggestions are greatly apprecitated.

Best regards,
Mark

 

Err... misc-reaCtor, and appreciated. Late night. Bad spellchecker, BAD!

Mark