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get pcells within a polygonal area, hierarchically

We have a polygon (not rectangle) at the top level, and pcells within that polygon's area, at various levels of hierarchy. We would like to read properties from all of those pcells.

A version of geSelectArea that would allow a start and stop level, instead of only selecting in the top level, would accomplish the goal. dbGetOverlaps descends the hierarchy, and would work great if you could specify a non-rectangular search area.

Any ideas?

Thanks

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Andrew Beckett over 7 years ago

geSelectArea can't support hierarchy, because you can't select hierarchical instances - so that wouldn't work.

Probably what I would do is use dbGetOverlaps using the bBox of the polygonal area, and then transform the bBox of the instances found to the top level coordinate system, and then check whether they are in the polygonal area using the code in https://community.cadence.com/cadence_technology_forums/f/48/p/23921/1316116#1316116

The benefit of the dbGetOverlaps is that it will do the gross filtering and return the hierarchical references, and then you can save the SKILL point checking to just the remaining instances.

Andrew.
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Andrew Beckett over 7 years ago

geSelectArea can't support hierarchy, because you can't select hierarchical instances - so that wouldn't work.

Probably what I would do is use dbGetOverlaps using the bBox of the polygonal area, and then transform the bBox of the instances found to the top level coordinate system, and then check whether they are in the polygonal area using the code in https://community.cadence.com/cadence_technology_forums/f/48/p/23921/1316116#1316116

The benefit of the dbGetOverlaps is that it will do the gross filtering and return the hierarchical references, and then you can save the SKILL point checking to just the remaining instances.

Andrew.
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