how to get point of layer that i want in window cell view

; Hi,

; You already asked a very similar question,
; community.cadence.com/.../by-using-dbgettrueoverlaps-how-to-get-coordinate-of-what-i-want

; You could re-use the answer I made there and just write the function to get a list of points from any shape.
; Otherwise, this is a simpler and probably more robust solution

(defun get_layer_polygons ( @key cv ( box cv->bBox ) lpp )
  "Return the coordinates of LPP polygons in CV.
(It only works for 90° and 45° angles, ellipses are not supported.)"
  (abeInit cv)
  (unwindProtect
    (letseq ( ( abe_lay (abeLayerFromCellView (car lpp) ?purpose (cadr lpp) ?bBox box) )
              ( iter    (abeIslandIterator abe_lay) )
              points
              polygons
              )
      (while (setq points iter->next)
        (push points polygons)
        )
      polygons)
    (abeDone)
    ))

The return value of dbGetInstTransform is the transformation (i.e. offset, rotation, magnification tuple) needed to transform the shape to the top-level. The bit you're missing is to do the transformation. Rather than appending those lists (which is inefficient and doesn't really help you), you can process the overlaps this way:

procedure(CCFgetHierPathShape(overlap)
  if(listp(overlap) then
    CCFgetHierPathShape(cadr(overlap))
  else
    overlap
  )
)

polyBBoxes=foreach(mapcar overlap overlaps
  dbTransformBBox(
    CCFgetHierPathShape(overlap)~>bBox
    dbGetInstTransform(overlap)
  )
)

Note, this is assuming that the shapes are rectangles (if polygons, you'll get the transformed bounding boxes of each shape regardless of the actual shape).

Andrew

thank you, guys!

i took a first step for my problem and solved it !!

as i want, i got a point list.

next step, i'm going to apply point list to dbPointArrayOr function.

for example, point_list = ( ((0 0) (5 5)) ((0 5) (5 10)) ((0 10) (5 15)) )

i think that dbPointArrayOr(wcv point_list)'s result is ( (0 0) (5 15) )

but, actually, dbPointArrayOr function don't operation.

what's wrong for me...?

Thank you for always leaving comments.

The “point list” you are providing is not a list of point lists but rather a list of bounding boxes. dbPointArrayOr will treat this as a list of point lists, and so each of your bounding boxes will be treated as a two-point diagonal line from the lower left to the upper right, and so you are trying to or three zero-area diagonal lines, and hence the result will be nothing.

In other words, each point list needs to be the outline of a polygon; if you were starting from the coordinates in a bounding box ((llx lly) (urx ury)) then it would need to be ((llx lly) (urx lly) (urx ury) (llx ury))

Andrew