SKILL for changing via.

Two things:

1. In general, performing a destructive change on a  list returned from the database will not have an effect. That's because the list is a representation of the database values, not a pointer to the database itself.
2. Specifically, you cannot change the type of via by changing properties of the via; you have to delete the via and create a new one (this is different from instances, where you can change the master attribute on the instance object).

Regards,

Andrew

Regarding to your 1) and 2) point below code works for changing via without deleting the vias, as you told.  

procedure(viachange2()

cvId= geGetEditCellView()

vias = geGetSelSet()

leReplace(cvId vias list(list("via definition" "==" "M2V2M3")))

Why is this working and not my code (which i started the thread with) is not working? 

Also this code has problem, it doesn't take the DRC enclosures as we going high in metals causing DRC. Tha'ts why i am not using this one and trying to write my own in other way. But it works, and violates what you said in point 1) and 2). 

Thanks! 

Leonardo da Vinci

This does delete the via and add it again. It's just using a higher level layout editor function (rather than a db function) to do it. Unfortunately all it does is preserve all the other attributes on the via - it has no idea that the overlaps need changing (it's the same as doing the Tools->Find/Replace in the layout editor). If you look at the object id returned as car(geGetSelSet()) before and after you do the leReplace, you'll see it's a different object id.

So this doesn't violate anything I said before. You probably need to use the via functions mentioned in a previous thread to compute the correct values for the new replacement via.

Regards,

Andrew.

Yes, i tried and tested it. Thanks!

Hi,

    Even iam facing the same issues while changing layout fom M2_M1 to M3_M2 and vice versa.. If you found the solution can you please share it??

As I explained above, you have to either use leReplace, or delete and re-add the via (dbDeleteObject() and then dbCreateVia()).

Regards,

Andrew.

I used leReplace but while doing that it will take lot of time to change the via any solution for that?

That's not very specific - you've not given any clue as to what exactly the problem is - how much is a lot of time? What precisely are you doing? Which version are you using? This really should be a new thread - see Guidelines for the Custom IC SKILL Forum

Andrew

I am using a version of 6.1 after the bindkey it starts buffering until I press shift+c on the virtuoso then the via will be changed

That doesn't give anywhere enough information. "A version of 6.1" could mean one of IC6.1.0, IC6.1.1, IC6.1.2, IC6.1.3, IC6.1.4, IC6.1.5, IC6.1.6, IC6.1.7, IC6.1.8 - that's nine major releases over 13 years. You didn't give any indication on how you were calling leReplace - what are the arguments? 

I suggest you contact customer support, so that at least an application engineer could have a web session with you to look at your data.

Regards,

Andrew