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skill code to change end point according to new Design rule

EJAZ27

a horizontal drawing layer is need to be aligned with guide as shown in figure. i want to automate it. I don t have much experience in cadence skill. you can consider me as a beginner level. it can be either done by reading guide or manually giving input how much length layer needs to be extended or pulled back.

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  • Hi,

    I'am not exactly sure what you want to do - the summary says "change end point according to new Design rule..." and in the description you say you want to align a horizontal drawing layer. Changing the end point of a path is easy, the OA attribute on a path's database object is "points", it's value is a list of points. Since this is an attribute you can write to, all you need to do is to assign a new value to this attribute. To try this out just select the path and then:
    myPath = css()
    myPath~>points
    ...which returns the current points list. And then assign a new value to it - for example
    myPath~>points = (list (list 0.0 0.0) (list 0.5 0.0 ))

    To do this on all paths in a given design you need to iterate over all shapes of type path (assuming the design is available in a SKILL variable named cv):
    (foreach path (setof shape cv~>shapes shape~>objType=="path")
       path~>points = <new points list>
    )

    Since your question is not very detailed (especially with respect to the new end point of the path according to a new design rule - what design rule?) I can only provide a very general approach.

    Max

Reply

  • Hi,

    I'am not exactly sure what you want to do - the summary says "change end point according to new Design rule..." and in the description you say you want to align a horizontal drawing layer. Changing the end point of a path is easy, the OA attribute on a path's database object is "points", it's value is a list of points. Since this is an attribute you can write to, all you need to do is to assign a new value to this attribute. To try this out just select the path and then:
    myPath = css()
    myPath~>points
    ...which returns the current points list. And then assign a new value to it - for example
    myPath~>points = (list (list 0.0 0.0) (list 0.5 0.0 ))

    To do this on all paths in a given design you need to iterate over all shapes of type path (assuming the design is available in a SKILL variable named cv):
    (foreach path (setof shape cv~>shapes shape~>objType=="path")
       path~>points = <new points list>
    )

    Since your question is not very detailed (especially with respect to the new end point of the path according to a new design rule - what design rule?) I can only provide a very general approach.

    Max

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