How to know the cut class of via which is already created

Hi Sathish,

The cut class is not recorded in the viaHeader - the edit properties form tries to infer the cut class from whatever the cutWidth/cutHeight are (at least I think that's what it's doing from a few experiments; I even changed one of the cutWidth/cutHeight and it still matched it against the "best fit" for cut class it could find).

Regards,

Andrew.

I was kinda working on something similar to you.

Its kinda a work in progress of how to get a via cutClass 

You can read more about cutClass from the cdshelp search "accessing cutClass"

If you need all the via names

allViaNames = techGetTechFile(geGetEditCellView())~>viaDefs~>name

viaDb = car(geGetSelSet())

procedure(stdLib_getViaCutClass(viaDb)
let( (lib techId foundaryCg cutLay cutClassCg name sz cutSzList)
lib = viaDb~>viaHeader~>master~>libName
techId = techGetTechFile(ddGetObj(lib))
foundryCg = cstFindConstraintGroupIn(techId "foundry")
cutLay = stdLib_getViaCutLpByViaDb(viaDb)
cutClassCg = car(setof(cg foundryCg~>objects equal(cg~>defName "cutClass")))

foreach(cut cutClassCg~>objects
      if(equal(car(cut~>layers) cutLay) then
            name = cadar(cut~>params)
            sz = cut~>value
            cutSzList = cons(list(name sz) cutSzList))
            )
cutSzList
); end of let
); end of stdLib_getViaCutClass

procedure(stdLib_getViaCutLpByViaDb(viaDb)
let( (lib techId lp1 lp2 viaCut
)
lib = viaDb~>viaHeader~>master~>libName
techId = techGetTechFile(ddGetObj(lib))

case(viaDb~>objType
             ("stdVia" lp1 = viaDb~>viaHeader~>viaDef~>layer1~>name
                  lp2 = viaDb~>viaHeader~>viaDef~>layer2~>name)
            ("stdViaDef" lp1 = viaDb~>layer1~>name
                  lp2 = viaDb~>layer2~>name)
            )
foreach(vLp techGetViaLayers(techId)
      if(member(lp1 vLp) && member(lp2 vLp) viaCut = cadr(vLp))
      )
viaCut
); end of let
); end of stdLib_getViaCutLp

Paul

Thanks Andrew

thanks paul will check it once