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Area calculation from layout in cadence 6.1.4

kpkp

Hi all,

I have generated a layout in cadence virtuoso layout editor...but dont knw how to calculate the area of layout? please anybody can help me?
Thanx in advance...

Parents

  • In addition, I'm not sure it's quite what you want anyway, because the shapes in the mark net information (copied to another cellView) could be on multiple layers. You probably don't really need to use CCSflattenedArea at all because the data is already flat - you might be better off doing this (with the window which contains the mark net copied shapes in as the current window):

    cv=geGetEditCellView()
    newShapes=dbLayerOr(cv list("y0" "drawing") cv~>shapes)
    area=0.0
    foreach(shape newShapes
      area=area+ABarea(shape)
      dbDeleteObject(shape)
    )
    printf("Total area is %g\n" area)

    (note, this is completely untested, but I think it should work). The dbLayerOr is producing a merged representation of all the shapes onto a temporary output layer, and then the code iterates over all the new shapes adding up the areas by calling ABarea on each shape. Since the y0 shapes are just working shapes, it deletes them as it works through them all.

    Regards,

    Andrew

Reply

  • In addition, I'm not sure it's quite what you want anyway, because the shapes in the mark net information (copied to another cellView) could be on multiple layers. You probably don't really need to use CCSflattenedArea at all because the data is already flat - you might be better off doing this (with the window which contains the mark net copied shapes in as the current window):

    cv=geGetEditCellView()
    newShapes=dbLayerOr(cv list("y0" "drawing") cv~>shapes)
    area=0.0
    foreach(shape newShapes
      area=area+ABarea(shape)
      dbDeleteObject(shape)
    )
    printf("Total area is %g\n" area)

    (note, this is completely untested, but I think it should work). The dbLayerOr is producing a merged representation of all the shapes onto a temporary output layer, and then the code iterates over all the new shapes adding up the areas by calling ABarea on each shape. Since the y0 shapes are just working shapes, it deletes them as it works through them all.

    Regards,

    Andrew

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