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deleting simple mosaics with skill

isgdude

icfb 5141

I'm looping though layout instances and deleting vias that point to the wrong techfie. I'm using dbDeleteObject( d_object) to delete these via's.   Everything was working smoothly until I ran across a layout that uses simple mosaics.

 I get this warning message: 

*WARNING* You can't delete the mosaicInst in the simple mosaic.

So my question is;

           how do you delete the mosaicInst in a simple mosaic? 

Thanks

Randy 

 

 

  • You need to iterate over cv~>mosaics and delete the mosaic itself. Don't try to delete the mosaicInst objects because these are just referenced from the mosaics - if you were allowed to delete the mosaicInst objects it would render the mosaic itself inconsistent (a mosaicInst is one of the things instantiated within a mosaic; in a simple mosaic there is only ever one type of cell instantiated within the mosaic; with complex mosaics, as produced by the end-of-lifed Structure Compiler tool, you could have multiple cells - and hence multiple mosaicInsts).

    Regards,

    Andrew

  • Thanks for the quick response and explanation.

    Randy 

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