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Cleaning up a layout view

RK56

Hi,

I looking for a reliable way to clean up the layout for that following needs

1. Delete orphaned nets => Remove nets that are not attached to any physical shape

2. Delete orphaned terminals =>Remove terminals that are obsolete (not connected to any physical shape, mostly the old name of a renamed terminal)

3. Fix cell extent boundary => Sometimes some ZoomToFit  fits to a boundary which is much zoomed out than the actual layout. Which is mostly because of steiners or some unknown object (in non streamout layer) presence.

The following is the current solution I have but not sure if it is reliable

1. mapcar('dbDeleteObject setoff(x cv~>nets !x~>pin))

3. mapcar('dbDeleteObject cv~>steiners)

-Ramakrishnan

Parents

  • Hi Ramakrishnan,

    I don't think the fact that a net doesn't  have a pin (net~>pin) necessarily means there is no shape on that net - so I'd rather go like that:

    (mapcar 'dbDeleteObject (setof net cv~>nets !(member net~>name (setof shape cv~>shapes shape~>net)~>net~>name)))

    Max

Reply

  • Hi Ramakrishnan,

    I don't think the fact that a net doesn't  have a pin (net~>pin) necessarily means there is no shape on that net - so I'd rather go like that:

    (mapcar 'dbDeleteObject (setof net cv~>nets !(member net~>name (setof shape cv~>shapes shape~>net)~>net~>name)))

    Max

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