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axlPolyOptions

Romme

Hi.

  I have some shapes that needed to be merged, so i was looking into axlPolyOptions. But no matter what i try, i can't get this working. Is there anyone who might have an "Not-from-the-help" demo of how to do this ?

 

  Is it because my input are some closed shapes (eg should i use axlPolyOptions before axlCreateShape ?).

 

  Try imagine an old :-) resistor having the house and 2 long legs. Now if i create a shape for each pin, one for each padstack and one for the house, then this gives 5 shapes. How to merge theseinto one shape ? And no this is not the task but an examble. The task is to do it automaticly in approx 1500 footprints in a library :-).

 

Sincerely

  Klavs Rommedahl.

  •  Klavs,

     Get the polys of the shapes using axlPolyFromDB(shape_dbid) then use axlPolyOperations( poly1_dbid ploy2_dbid 'OR). It will be faster if you put all but 1 poly in a list and then PolyOp the single poly with the list of polys.

     Craig

  • axlPolyOperations regularly return lists when you may be expecting a single object id.

    This might help:

    mergedPolys = nil
    foreach(shp, myShapes
        mergedPolys = axlPolyOperation(poly, car(axlPolyFromDB(shp)), 'OR)
    )
    when(onep(length(mergedPolys))
        when(car(axlDBCreateShape(car(mergedPolys), nil, "PACKAGE GEOMETRY/ASSEMBLY_TOP"))
            axlDeleteObject(myShapes)
        )
    )

    Dave

  • I might be a bit stupid, cause i do wanna find out before giving up :-). But running through pdf files and tutors didn't give much.

     The var MyShape, where does that come from ?

    I have :

     

      Y0 = 0.0
      Pitch  = 3.0
      Rows   = 1 ; a for loop from 1 to 12 rows
      Xtnd   = (Pitch * (Rows - 1)) / 2.0
      PkgGeoPlace = axlPathStart( list(0.0:(Y0-4.600)))
      axlPathLine( PkgGeoPlace, 0.0, (Xtnd+1.950):(Y0-4.600))
      axlPathLine( PkgGeoPlace, 0.0, (Xtnd+3.345):(Y0-2.920))
      axlPathLine( PkgGeoPlace, 0.0, (Xtnd+3.345):(Y0+5.300))
      for(rcnt 1 Rows
        posx = ((Rows - 1) * Pitch)/2 - (rcnt - 1)*Pitch
        axlPathLine( PkgGeoPlace, 0.0, (posx+0.495):(Y0+5.300))
        axlPathLine( PkgGeoPlace, 0.0, (posx+0.320):(Y0+5.155))
        axlPathLine( PkgGeoPlace, 0.0, (posx+0.320):(Y0+7.640))
        axlPathLine( PkgGeoPlace, 0.0, (posx-0.320):(Y0+7.640))
        axlPathLine( PkgGeoPlace, 0.0, (posx-0.320):(Y0+5.155))
        axlPathLine( PkgGeoPlace, 0.0, (posx-0.495):(Y0+5.300))
      ) 
      axlPathLine( PkgGeoPlace, 0.0, (-Xtnd-3.345):(Y0+5.300))
      axlPathLine( PkgGeoPlace, 0.0, (-Xtnd-3.345):(Y0-2.920))
      axlPathLine( PkgGeoPlace, 0.0, (-Xtnd-1.950):(Y0-4.600))
      axlPathLine( PkgGeoPlace, 0.0, 0.0:(Y0-4.600))
      _BoundHeight(axlDBCreateShape(PkgGeoPlace t) 8.77)
      for(rcnt 1 Rows
        posx = ((Rows - 1) * Pitch)/2 - (rcnt - 1)*Pitch
        path1 = axlDBCreateCircle( list(posx:PinY (1.95/2.0)), 0.0, "Package Geometry/Place_Bound_Top")
        _BoundHeight(axlDBCreateShape(path1 t) 8.77)
        path2 = axlDBCreateCircle( list(posx:(PinY+3.0) (1.95/2.0)), 0.0, "Package Geometry/Place_Bound_Top")
        _BoundHeight(axlDBCreateShape(path2 t) 8.77)
      )
     ; the rest is Your part rewriten
       mergedPolys = nil
      foreach(shp, myshapes
        mergedPolys = axlPolyOperation(poly, car(axlPolyFromDB(shp)), 'OR)
      )
      when(onep(length(mergedPolys))
        when(car(axlDBCreateShape(car(mergedPolys), nil, "PACKAGE GEOMETRY/Place_Bound_Top"))
          axlDeleteObject(myShapes)
        )
      )

    Sincerely

      Klavs Rommedahl

      GHDsign ApS.

    Forgot:

    Allegro answers with this:

     ** Creating pin-array = 1 **
    W- *WARNING* (axlDBCreateOpenShape): Object should be either an r_path or an o_polygon - ((dbid:147219440) nil)
    W- *WARNING* (axlDBCreateOpenShape): Object should be either an r_path or an o_polygon - ((dbid:147219552) nil)
    E- *Error* eval: unbound variable - myShapes
    E- *Error* load: error while loading file - "D:/home/kr/test/fpm/skill/ghd_conn_molex-43045-xx01.il"
    ERROR
    t
    Pick to complete the window.

  •  Well, I guess eDave is talking about dbid's of all the shapes present on your layer or the entire design. I can give you a SKILL command to find it. Its not tough.

     Actually I am also facing a similar problem like you, I tried to merge using the axlPolyOptions, it gives me a new dbid, but it doesn't merge the shapes it seems. What I have to do is, to merge all the shapes on a given layer. I haven't tried the code eDave has mentioned here. Will try it and let you all know. 

    Here's the command to get all the shapes on a given layer:

      myShape = (axlDBGetShapes "layer_name")

    Thanks,

    Chinmay

  •  myShapes is a list of shapes that you want to merge. One way of getting them is what Chinmay suggested. Or it could be a list of shapes you create. For eDave's code to work you will also need to change "poly" to "mergedPolys".

    - Craig 

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