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How to flatten cell in non-graph mode

sparksu

 I want to flatten a hierarchial layout cell.

leHiFlatten() can do this in graph mode.

But compared to leHiFlatten(), it is extremely slow to do this by using dbFlatInst() in non-graph mode.

Is there an alternative way to flatten a database in non-graph mode?

Thanks.

  • Andrew Beckett
    I'd be surprised if dbFlattenInst is any slower than leFlattenInst (which is used within leHiFlattenInst) since I believe the code is the same.

    Are you sure you're giving it the same arguments?

    This should be a pretty efficient way of doing a flatten. I don't know of a more efficient way.

    Regards,

    Andrew
  • sparksu

    Thanks. I got it.

    Here is my code.

    ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

    cv=deGetCellView()

    objs=cv->instances

    foreach(obj objs

           when(obj->objType=="inst" dbFlattenInst(obj 32 t))

    );end foreach

    ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

    Since  dbFlattenInst() and leHiFlattenInst() are of the same code, It must be "foreach"  who made my code slow.

    "objs" is too large to be traversed.

  • Andrew Beckett
    Really? If there are that many instances that the foreach is slow, then probably you're going to end up witha huge flat cellview, and that's more likely to be the problem.

    What does length(objs) show?

    Regards,

    Andrew
  • sparksu

    Sorry. I can not get my original code now. I'd like to post my entire code here later.

  • sparksu

    You are right, Andrew.

    Traversing objs did not make my code slow.

     length(objs)=>480

     

    I compared the following codes:

    ;Code A

    ;---------------------------------------------------------------------------

    foreach(obj objs

    when(obj->objType=="inst" dbFlattenInst(obj 32 t) )

    ;end foreach

    ;---------------------------------------------------------------------------

    ;Code B

    ;---------------------------------------------------------------------------

    foreach(obj objs

    when(obj->objType=="inst" dbFlattenInst(obj 32 t nil t) ) ;preserveRODobjs

    );end foreach

    ;---------------------------------------------------------------------------

     

    Code A cost 120 seconds.

    Code B is too slow to be finished. I waited about 0.5 hours and then killed it manually.

    I think it is the argument "preserveRODobjs" who made my code slow.

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