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How to get m0 layer info in a layout

EJAZ27

HI All,

I am new to skill. My requirement is

open layout 

get m0 layer cordinates in a layout

dump info into a text file

For example 2 input Nand, A,B output , vcc , vssx and internal net (n2) will be the m0 layers. I need info like in a text file.

n2 co ordinate

vssx (co ordinate)

a (co ordinate)

b (co ordinate ) .

I found similar code in cadence form . Can you help me on this

 procedure(printPts()
let(    (type
    (cnt 0)
    (objList geGetSelSet()))

foreach(obj objList
    ++cnt
    type = obj~>objType
    case(type
        ("inst"
            printf("%s %L at %L\n" type obj~>xy))
        ("rect"
            printf("%s on layer %L at %L\n" type obj~>lpp obj~>bBox))
        ("polygon"
            printf("%s on layer %L at %L\n" type obj~>lpp obj~>points))
        ("path"
            printf("%s on layer %L at %L\n" type obj~>lpp obj~>points))
        ("pathSeg"
            printf("%s on layer %L at %L\n" type obj~>lpp list(obj~>beginPt obj~>endPt)))
        ("label"
            printf("%s on layer %L at %L\n" type obj~>lpp obj~>xy))
        (t    printf("%s not defined\n" type))
    )
)
printf("%n objects selected\n" cnt)
); end of let
); end of printPts

  • EJAZ27

    Hi All,

    I like to get the netname and coordintes of all Metal0 drawing present in the layout which is opened to be written in a text file as output

  • Andrew Beckett

    First of all, was the layout created with Layout XL? If not, it probably won't have connectivity information, and so you're  unlikely to achieve your goal. If it was, you can find the net name by looking at obj~>net~>name (in code similar to that which you posted). Rather than operating on the selected objects, you could  do something like:

    cv=geGetEditCellView()
    M0drawing=car(exists(lpp cv~>lpps lpp~>layerName=="M0" && lpp~>purpose=="drawing"))
    foreach(obj M0drawing~>shapes
       ...
    )

    I don't know what you want in terms of "coordinate". For a path or a polygon do you want all the points? For a rectangle do you wan the bounding box?

    Your requirements are pretty vague... so I can't write code for you. So hopefully the above will get you started in at least roughly the right direction.

    Regards,

    Andrew.

  • EJAZ27
    in reply to Andrew Beckett

    Hi Andrew,

    What I mean by co ordinate is x,y centre of the polygon. Even xh and yh of Bbox is fine

    Layout is opened in the XL mode also

    Can I get the netname of shapes/polygon also

    Thanks in advance

  • Andrew Beckett
    in reply to EJAZ27

    Something like this:

    outFile=outfile("./report.txt")
    cv=geGetEditCellView()
    M0drawing=car(exists(lpp cv~>lpps lpp~>layerName=="m0" && lpp~>purpose=="drawing"))  ; make sure you have the right layer name here
    foreach(obj M0drawing~>shapes
      when(obj~>net
        fprintf(outFile "%s %L\n" obj~>net~>name centerBox(obj~>bBox))
      )
    )
    close(outFile)

  • EJAZ27
    in reply to Andrew Beckett

    Hi Andrew,

    Thanks alot for the quick response. I will try it out

    Regards,

    Ejaz Mirzan

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