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Temporarily Flattening Pcells

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I am using the bounding boxes of all shapes in a cell database at all hierarchy levels.
I run into problems when encountering PCells that are stretched or otherwise altered since when opening the pcell I loose all the parameters.

Is there any way to access the drawn shapes in a pcell with parameters?

I searched and found this:

You can't - these only work with database objects in the current cellView. You'd need to flatten first, or use a verification tool (e.g. Diva, Assura) to do the layer manipulation. You could use dbFlattenInst() to bring everything to the current cellView, or copy the source shapes to dummy shapes in the top cellView and then work on those.

I've used a flow in the past where I've used dbGetOverlaps to find hierarchical shapes, work out the transformation by concatenating all the transforms, and then use dbCopyFig to copy into the top level cellView, and then use dbLayerAnd on these shapes - and then delete the "flattened" copies.

Regards,

Andrew.

The data must be there because the shapes in a pcell have to be drawn. Can I access those "drawn" bBoxes through SKILL?


Originally posted in cdnusers.org by ahamlett
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  • Thanks Andrew. Since you seem to know your way around the database structure, is there a way to access the subMaster of a mosaic instance?

    Mosaics slow down my function considerably. Here is my test code (also attached):

    procedure( getAndDrawBoxes(@optional original cvId transform mosaic) prog( (winId temp a b c cell x1 y1 x2 y2 x y orient mag box i j boxes uX uY oX oY rows cols) if(dbobjectp(cvId) then if(dbobjectp(cvId~>master) then cell = cvId~>master else cell = cvId ) foreach(a cell~>layerPurposePairs ; loop through layers foreach(b a~>shapes ; loop through shapes if(stringp(b~>layerName) then x = nth(0 nth(0 transform)) y = nth(1 nth(0 transform)) orient = nth(1 transform) mag = nth(2 transform) if(!floatp(x) then x = 0.0 ) if(!floatp(y) then y = 0.0 ) if(!stringp(orient) then orient = "R0" ) if(!floatp(mag) then mag = 1.0 ) box = b~>bBox if(length(mosaic) != 0 then box = list(list((nth(0 nth(0 box)) + nth(0 mosaic)) (nth(1 nth(0 box)) + nth(1 mosaic))) list((nth(0 nth(1 box)) + nth(0 mosaic)) (nth(1 nth(1 box)) + nth(1 mosaic)))) ) box = geTransformUserBBox(box list(x:y orient mag)) dbCreateRect(original list("marker" "warning") box) ;println(box) ) ) ) ; Check instances foreach(a cvId~>instances if(a~>objType != "mosaicInst" then x = nth(0 a~>xy) y = nth(1 a~>xy) orient = a~>orient mag = a~>mag if(!floatp(x) then x = 0.0 ) if(!floatp(y) then y = 0.0 ) if(!stringp(orient) then orient = "R0" ) if(!floatp(mag) then mag = 1.0 ) if(length(transform) != 0 then temp = dbConcatTransform(list(list(x y) orient mag) transform) else temp = list(list(x y) orient mag) ) getAndDrawBoxes(original a~>master temp) else orient = car(a~>mosaic~>tileArray) rows = a~>mosaic~>rows cols = a~>mosaic~>columns uX = a~>mosaic~>uX uY = a~>mosaic~>uY oX = nth(0 a~>mosaic~>xy) oY = nth(1 a~>mosaic~>xy) if(orient == "R90" then temp = rows rows = cols cols = temp temp = uY uY = uX * -1 uX = temp ) if(orient == "R180" then uX = uX * -1 uY = uY * -1 ) if(orient == "R270" then temp = rows rows = cols cols = temp temp = uX uX = uY * -1 uY = temp ) if(orient == "MY" then uX = uX * -1 ) if(orient == "MYR90" then temp = rows rows = cols cols = temp temp = uY uY = uX * -1 uX = temp * -1 ) if(orient == "MX" then uY = uY * -1 ) if(orient == "MXR90" then temp = rows rows = cols cols = temp temp = uY uY = uX uX = temp ) if(uX < 0 then oX = oX * -1 ) if(uY < 0 then oY = oY * -1 ) if(length(transform) != 0 then temp = transform else temp = list(list(0.0 0.0) "R0" 1.0) ) for(y 0 (rows - 1) ; expand mosaic rows for(x 0 (cols - 1) ; expand mosaic columns getAndDrawBoxes(original a~>master dbConcatTransform(list(list(oX oY) orient 1.0) temp) list((x * uX) (y * uY))) ) ) ) ) else winId = hiGetCurrentWindow() if(winId == nil then return(t) ) cvId = geGetWindowCellView(winId) if(cvId == nil then return(t) ) getAndDrawBoxes(cvId cvId) ) ) )


    Originally posted in cdnusers.org by ahamlett
    getAndDrawBoxes.il
Reply

  • Thanks Andrew. Since you seem to know your way around the database structure, is there a way to access the subMaster of a mosaic instance?

    Mosaics slow down my function considerably. Here is my test code (also attached):

    procedure( getAndDrawBoxes(@optional original cvId transform mosaic) prog( (winId temp a b c cell x1 y1 x2 y2 x y orient mag box i j boxes uX uY oX oY rows cols) if(dbobjectp(cvId) then if(dbobjectp(cvId~>master) then cell = cvId~>master else cell = cvId ) foreach(a cell~>layerPurposePairs ; loop through layers foreach(b a~>shapes ; loop through shapes if(stringp(b~>layerName) then x = nth(0 nth(0 transform)) y = nth(1 nth(0 transform)) orient = nth(1 transform) mag = nth(2 transform) if(!floatp(x) then x = 0.0 ) if(!floatp(y) then y = 0.0 ) if(!stringp(orient) then orient = "R0" ) if(!floatp(mag) then mag = 1.0 ) box = b~>bBox if(length(mosaic) != 0 then box = list(list((nth(0 nth(0 box)) + nth(0 mosaic)) (nth(1 nth(0 box)) + nth(1 mosaic))) list((nth(0 nth(1 box)) + nth(0 mosaic)) (nth(1 nth(1 box)) + nth(1 mosaic)))) ) box = geTransformUserBBox(box list(x:y orient mag)) dbCreateRect(original list("marker" "warning") box) ;println(box) ) ) ) ; Check instances foreach(a cvId~>instances if(a~>objType != "mosaicInst" then x = nth(0 a~>xy) y = nth(1 a~>xy) orient = a~>orient mag = a~>mag if(!floatp(x) then x = 0.0 ) if(!floatp(y) then y = 0.0 ) if(!stringp(orient) then orient = "R0" ) if(!floatp(mag) then mag = 1.0 ) if(length(transform) != 0 then temp = dbConcatTransform(list(list(x y) orient mag) transform) else temp = list(list(x y) orient mag) ) getAndDrawBoxes(original a~>master temp) else orient = car(a~>mosaic~>tileArray) rows = a~>mosaic~>rows cols = a~>mosaic~>columns uX = a~>mosaic~>uX uY = a~>mosaic~>uY oX = nth(0 a~>mosaic~>xy) oY = nth(1 a~>mosaic~>xy) if(orient == "R90" then temp = rows rows = cols cols = temp temp = uY uY = uX * -1 uX = temp ) if(orient == "R180" then uX = uX * -1 uY = uY * -1 ) if(orient == "R270" then temp = rows rows = cols cols = temp temp = uX uX = uY * -1 uY = temp ) if(orient == "MY" then uX = uX * -1 ) if(orient == "MYR90" then temp = rows rows = cols cols = temp temp = uY uY = uX * -1 uX = temp * -1 ) if(orient == "MX" then uY = uY * -1 ) if(orient == "MXR90" then temp = rows rows = cols cols = temp temp = uY uY = uX uX = temp ) if(uX < 0 then oX = oX * -1 ) if(uY < 0 then oY = oY * -1 ) if(length(transform) != 0 then temp = transform else temp = list(list(0.0 0.0) "R0" 1.0) ) for(y 0 (rows - 1) ; expand mosaic rows for(x 0 (cols - 1) ; expand mosaic columns getAndDrawBoxes(original a~>master dbConcatTransform(list(list(oX oY) orient 1.0) temp) list((x * uX) (y * uY))) ) ) ) ) else winId = hiGetCurrentWindow() if(winId == nil then return(t) ) cvId = geGetWindowCellView(winId) if(cvId == nil then return(t) ) getAndDrawBoxes(cvId cvId) ) ) )


    Originally posted in cdnusers.org by ahamlett
    getAndDrawBoxes.il
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