SkandanC
commented
1 year ago So everytime a DPolygon is added, is gets added to a virtual kcell, which is flattebed, and addded back to the kcell?
From: Sebastian Goeldi @.> Sent: Wednesday, September 6, 2023 4:50 PM To: gdsfactory/kfactory @.> Cc: Skandan Chandrasekar @.>; Mention @.> Subject: [gdsfactory/kfactory] Virtual DCells (Issue #178)
Is your feature request related to a problem? Please describe. Currently, there is no good way in kfactory for doing all-angle routing or ,more generally speaking ways, of handling off-grid operations that will be snapped later on.
Describe the solution you'd like We can use virtual cells:
- Acts like a normal KCell wrt transformation and connections, but allows arbitrary angles and positions off-grid
- Internally a fully virtual KCell (let's call it a VCell) is collection of DPolygons and ports (DCplxTrans ports) or a proxy for a virtual instance of a KCell.
- Upon insertion of a VCell, all DPolygons and proxies are flattened into the new parent cell. This should ensure all the DPolygons are flattened with enough accuracy to avoid 1nm gaps or mismatches.
- Ensure when inserted into a KCell, there are either no ports or only 90° ports that are snapped to a polygon edge
@joamatabhttps://github.com/joamatab @SkandanChttps://github.com/SkandanC @tvt173https://github.com/tvt173
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sebastian-goeldi
Is your feature request related to a problem? Please describe. Currently, there is no good way in kfactory for doing all-angle routing or ,more generally speaking ways, of handling off-grid operations that will be snapped later on.
Describe the solution you'd like We can use virtual cells:
@joamatab @SkandanC @tvt173