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  3. change via definitions in an hierachical layout

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change via definitions in an hierachical layout

The Consultant
The Consultant over 12 years ago

 i want to change "M6_M5" to "M5M6" , but how ?

 

plz. help

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  • Andrew Beckett
    Andrew Beckett over 12 years ago

    Probably the easiest way to do this is with leSearchHierarchy and leReplace - these are like the layout editor's Find/Replace command. However, since leReplace only does it one cellVIew at a time, you may be better off doing a recursive hierarchy traversal, visiting each cellView master once, and then doing the leSearchHierarchy and leReplace one cellView at a time. There are numerous examples on this forum of doing a recursive hierarchy traversal.

    Here's the commands to change it one one level:

    ; note that the via name is a regular expression, so I am anchoring it to ensure it doesn't match any
    ; partial names
    vias=leSearchHierarchy(cvId cvId~>bBox 0 "via" list(list("via definition" "==" "^M6_M51$")))
    leReplace(cvId vias list(list("via definition" "==" "M5M6")))

    I suggested this because changing a via from one via to another with the db functions is not easy - you have to delete and re-add.

    Regards,

    Andrew.

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  • Andrew Beckett
    Andrew Beckett over 12 years ago

    Probably the easiest way to do this is with leSearchHierarchy and leReplace - these are like the layout editor's Find/Replace command. However, since leReplace only does it one cellVIew at a time, you may be better off doing a recursive hierarchy traversal, visiting each cellView master once, and then doing the leSearchHierarchy and leReplace one cellView at a time. There are numerous examples on this forum of doing a recursive hierarchy traversal.

    Here's the commands to change it one one level:

    ; note that the via name is a regular expression, so I am anchoring it to ensure it doesn't match any
    ; partial names
    vias=leSearchHierarchy(cvId cvId~>bBox 0 "via" list(list("via definition" "==" "^M6_M51$")))
    leReplace(cvId vias list(list("via definition" "==" "M5M6")))

    I suggested this because changing a via from one via to another with the db functions is not easy - you have to delete and re-add.

    Regards,

    Andrew.

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