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Test point has poly under it

DaveDesigner

I am looking at specific origin points of labels, x~>xy

I want to do a simple test which would look at this point and see if it is on top of the POLY dg layer. The POLY dg layer would be at a different level of hierarchy.

 Thank you if you are able to suggest an option. I am stuck.

 

Parents

  •  Hi Dave,

    I think that you should be able to find a solution by using the dbGetOverlaps() SKILL function.  In using your example, you might do something like the following (NOTE this is untested, off the top of my head, so may well need modification to get it to work):

    ;; 20 is the depth through the hierarchy to check, adjust as necessary
    ;; use the point xy twice to make the search bBox
    shapes = dbGetOverlaps(x~>cellView list(x~>xy x~>xy) list("POLY" "drawing") list(0 20))
    ;; check at this level of hierarchy, is there at least one shape that is on POLY drawing?
    labelOnPoly = exists(shape shapes shape~>layerName=="POLY" && shapes~>purpose=="drawing")
    ;; check at other levels of hierarchy, is there at least one shape in any
    ;; of the levels of hierachy that is on the POLY drawing layer?
    unless(labelOnPoly
      labelOnPoly = exists(shapeList shapes
        exists(shape cdr(shapeList) shape~>layerName=="POLY" && shapes~>purpose=="drawing"))
    ); unless

    dbGetOverlaps will either return a list of shapes or a list of lists (I think, again this is off the top of my head), so we check the list, and if this returns nil (i.e. no shapes on POLY dg at this level of hierarchy) then we check the other levels. The list of lists format (from memory) starts with the dbId of the cellview that the shapes were found in and the rest of the list will be the shapes, hence the use of cdr to remove the first item from the list. I hope this is correct and does what you want it to!

    Regards,

    Lawrence.

Reply

  •  Hi Dave,

    I think that you should be able to find a solution by using the dbGetOverlaps() SKILL function.  In using your example, you might do something like the following (NOTE this is untested, off the top of my head, so may well need modification to get it to work):

    ;; 20 is the depth through the hierarchy to check, adjust as necessary
    ;; use the point xy twice to make the search bBox
    shapes = dbGetOverlaps(x~>cellView list(x~>xy x~>xy) list("POLY" "drawing") list(0 20))
    ;; check at this level of hierarchy, is there at least one shape that is on POLY drawing?
    labelOnPoly = exists(shape shapes shape~>layerName=="POLY" && shapes~>purpose=="drawing")
    ;; check at other levels of hierarchy, is there at least one shape in any
    ;; of the levels of hierachy that is on the POLY drawing layer?
    unless(labelOnPoly
      labelOnPoly = exists(shapeList shapes
        exists(shape cdr(shapeList) shape~>layerName=="POLY" && shapes~>purpose=="drawing"))
    ); unless

    dbGetOverlaps will either return a list of shapes or a list of lists (I think, again this is off the top of my head), so we check the list, and if this returns nil (i.e. no shapes on POLY dg at this level of hierarchy) then we check the other levels. The list of lists format (from memory) starts with the dbId of the cellview that the shapes were found in and the rest of the list will be the shapes, hence the use of cdr to remove the first item from the list. I hope this is correct and does what you want it to!

    Regards,

    Lawrence.

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