how to delete a instance in layout view

In current cellView: to delete all instances whose name contains "via_pcell" you can use the following line in your CIW but this might be brutal:

(mapcar 'dbDeleteObject (setof instance (get (geGetEditCellView) 'instances) (pcreMatchp "via_pcell" (get instance 'name))))

You can replace pcreMatchp by equal if you want to delete instances whose name is exactly "via_pcell" but I don't think you can have many instances with the exact same name

You can just try (setof instance (get (geGetEditCellView) 'instances) (pcreMatchp "via_pcell" (get instance 'name))) to have an idea of all the matching instances

Use this at your own risk

Hope this will help anyway,

Cheers,

Aurel

If there are a lot of instances in the cellView, you may be better off using:

foreach(instHeader geGetEditCellView() ~>instHeaders
  when(instHeader>cellName=="via_pcell"
    foreach(instance instHeader~>instances
      dbDeleteObject(instance)
    )
  )
)

This avoids traversing every single instance when you can directly narrow it down to the right cell - this is assuming that when you were talking about instances called "via_pcell" you really meant that the cellName was via_pcell (you cannot have more than one instance with the same name).

If you are basing the decision to delete on via_pcell on a partial match to the instance name, then an approach similar to that suggested by Aurel would be necessary (sometimes with a lot of instances you may be better off just looping with a foreach and when the match occurs do the delete, rather than using setof - that will create more garbage to be collected - however I doubt that would be a significant speed issue even in that case compared with the cost of deleting instances).

Regards,

Andrew.