Dims & UCS

Hello,

Using lisp, is there a way to update all the dims in a known selection set
to the current UCS?

Dims were created in World. I want to apply a 'ucs fix' to some dims when
the ucs gets changed.

Thank you,
Mark

 

Mark,

I guess there's been no replies to your question so far because the issue isn't
clear. Maybe post a file to CF which demonstrates the problem.

In fact, I think I know what you are talking about. I have a program by Herman
Mayfarth which might help. But I can't know for sure until I test it with an example
file.

Joe Burke

 

Hi Joe,

Basically, I'm in a known, named UCS. I'm copying dimensions from WCS to
current UCS. I need to update the dim to the current UCS. I tried using a
selection set, created in WCS, the copying while in UCS, no luck. A simple
cut while in WCS, then paste in UCS produces desired results, so I know what
I'm trying to is possible.

Any suggestions?
Thanks,
Mark

 

Hi Mark,

Sorry, I'm thick. I still don't understand what the issue is.

Am I right in thinking there's two drawings involved and you want to copy/paste
dimensions between drawings? If so, please describe what the problem is when it
doesn't do what you want.

Joe Burke

 

Hi Mark, I had missed this thread. Is this the same kind of ucs we were
talking about in the other thread? I.e. only moved and/or rotated? If so
then all you should need is the origin point (base) and rotation angle (rot)
of the ucs. Then move and rotate the selection using those values. Just
remember if you move it first to rotate around (base), not '(0 0 0).

 

Just trying to copy in the same drawing, from WCS to UCS.

Thanks,
Mark

 

Hi James,

Sorry for the long delay - buried here. Similar situation, but UCS is
rotated around Y, so everything is opposite hand. I need to be able to
somehow update the dimensions. Per my last post, cut-n-paste works, but a
selection set copy doesn't (text is backwards).

Thanks for the help,
Mark

 

No problem on delay. I'm typically pretty slow myself. As Joe already
mentioned, posting a sample file would help tremendously. Specifically, if
you would show us what it looks like when it works and what it looks like
when it doesn't work, that would be great.

Just taking another stab though, if the *only* problem is backward text,
have you already checked your mirrtext variable? I doubt that will be it,
but you never know.

Well, okay. Stab #2. Again, if everything looks right but text, try just
changing the normal property to (0 0 1). If it is mirrored, you will notice
a normal more like (0 0 -1). Things can still get mirrored when you're
playing with ucs's regardless of the mirrtext setting.

(vla-put-normal (vlax-ename->vla-object (car (entsel))) (vlax-3d-point '(0 0
1)))

James


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James,

Agreed, we need an example file of at least the dimtext wrong condition.

Mark,

Please try put yourself in our shoes while explaining what the problem is. Your
fourth post finally mentioned, as an aside, the issue at hand... (text is backwards).

The program I mentioned by Herman deals with that sort of thing. I can't know if it
will help you without as example file to test against.

It's useful for me under these circumstances. Select a bunch of objects in a rotated
UCS, some of which are dimensions. Then copy with base point. Rotate the UCS about
the Z axis to some other angle. Paste. What often happens is some of the dimension
text will jump below the dimension line. Or the angle of dimtext may be 180 degrees
opposite of what it would be if I drew a new dimension.

Herman's program fixes these problems.

Joe Burke

 

Mark and Holly,

That's the program by Herman I mentioned. Hope it does the trick.

Joe Burke

 

That was it! What can I say, thank you so much. In this case I needed '(0
0 -1), but can solve that on the fly.

Thanks James,
Mark

 

Thanks Holly. The code you posted was a flip OVER the dimension line. James
post was it. I will stash your attachment, I'm sure I will be needing it.


Thanks,
Mark

 

Thanks Joe, I should have posted a drawing, and I will next time. Thanks for
your help!
Mark

 

Well, now I'm even more confused. But if you got what you need that's the
important part. You are welcome.

James

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