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Scanning through symbol db

HDar

HI, I am new to skill. I am trying to write a program that checks if there exist an ellipse shape (a bubble) near a negated pin (pins that are negated, it will have "N" at the end). To do this I am trying to get coordinates of both the pin and the bubble, check if the bubble is on the left side of the pin or not (for output pin, the bubble should exist on the right hand side of the pin text).

How do I scan through the symbol view db.

symView = dbOpenCellViewByType( "scratch" "DFF" "symbol" "" "r" ) ; <-- opening the symbol view to a variable 

I am able to get the coordinates of all the bubbles that exist in the symbol, Also coordinates of all the negated pins, but in a separate loop. I want to try doing it in efficient manner ( using one loop ). Thank you for your help.

PS: If there is any document listing out sample scripts, if would be great help to me :)

-HD

Parents

  • HI Andrew,

    Thanks for you reply.

    Yes, I edited my first post to be more clear as to what I am looking for.

    Here is a screenshot of my symbol (the area that I am interested in). Here SN port has a bubble, which is a negated port and that's expected.

    If the bubble is on R port then its wrong and I should be able to detect it. Thank you for your time. I will try to look for some sample scripts in cadence community and try to find a way around.

    Thanks,

    Himanshu

Reply

  • HI Andrew,

    Thanks for you reply.

    Yes, I edited my first post to be more clear as to what I am looking for.

    Here is a screenshot of my symbol (the area that I am interested in). Here SN port has a bubble, which is a negated port and that's expected.

    If the bubble is on R port then its wrong and I should be able to detect it. Thank you for your time. I will try to look for some sample scripts in cadence community and try to find a way around.

    Thanks,

    Himanshu

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