Sorting Schematic Instance by location

I assume you meant cv~>instances rather than cv~>instHeaders (instHeaders are once per instantiated master, and can represent multiple instances of the same type - so an instHeader will have multiple xy locations, one for each instance). For that you'd do:

instancesSortedByX=sort(cv~>instances lambda((a b) xCoord(a~>xy) < xCoord(b~>xy)))

Regards,

Andrew.

My code uses instHeaders and still can't make it work with your suggestion.....could you correct it?                                                                                                                                                                                 

foreach(ih cv~>instHeaders

    when( !member(ih~>libName skipLibList)

    instancesSortedbyX=sort(ih~>instances lambda((a b) xCoord(a~>xy) < xCoord(b~>xy)))

    foreach(inst instancesSortedbyX

      instNameList2 = cons(inst~>name instNameList2)

        printf("\tname=%s\txy=%L\n", inst~>name, inst~>xy)

    )

  )

)

So what doesn't work? I tried your code, and for each instHeader, the instances are output sorted by the X coordinate.

Andrew.

 foreach(ih cv~>instHeaders
   when( !member(ih~>libName skipLibList)
     foreach(inst ih~>instances
       instNameList = cons(inst~>name instNameList)
         printf("\tname=%s\txy=%L\n", inst~>name, inst~>xy)    
     )
   )
 )
 printf("instNameList 1=%L\n", instNameList)
 printf("instNameList s=%L\n", sort(instNameList nil))


 foreach(ih cv~>instHeaders
   when( !member(ih~>libName skipLibList)
     instancesSortedbyX=sort(ih~>instances lambda((a b) xCoord(a~>xy) < xCoord(b~>xy)))
     foreach(inst instancesSortedbyX     
       instNameList2 = cons(inst~>name instNameList2)
         printf("\tname=%s\txy=%L\n", inst~>name, inst~>xy)    
     )
   )
 )

 printf("instNameList2=%L\n", instNameList2)


OUTPUT :

    name=I0        xy=(-2.1875 1.125)
    name=I5        xy=(2.3125 0.3125)
    name=I2        xy=(-0.375 0.8125)
    name=Iz1    xy=(-1.375 0.0)
    name=I3        xy=(0.25 0.8125)
    name=I4        xy=(1.25 0.0625)
instNameList 1=("I4" "I3" "Iz1" "I2" "I5" "I0")
instNameList s=("I0" "I2" "I3" "I4" "I5" "Iz1")
    name=I0        xy=(-2.1875 1.125)
    name=I2        xy=(-0.375 0.8125)
    name=I5        xy=(2.3125 0.3125)
    name=Iz1      xy=(-1.375 0.0)
    name=I3        xy=(0.25 0.8125)
    name=I4        xy=(1.25 0.0625)
instNameList2=("I4" "I3" "Iz1" "I5" "I2" "I0")

See the output from the 2nd foreach, the instances were not sorted by x coordinate, correct order should be I0, Iz1, I2, I3, I4, I5.

Pretty sure I'm not doing it correctly if you got it to work.

I suspect the most likely explanation is that the instances are not all part of the same instHeader. It's only sorting within each instHeader.

Please change the second loop to:

 foreach(ih cv~>instHeaders
   when( !member(ih~>libName skipLibList)
     printf("instHeader: %L %L %L master=%L\n" ih~>libName ih~>cellName ih~>viewName ih~>master)
     instancesSortedbyX=sort(ih~>instances lambda((a b) xCoord(a~>xy) < xCoord(b~>xy)))
     foreach(inst instancesSortedbyX     
       instNameList2 = cons(inst~>name instNameList2)
         printf("\tname=%s\txy=%L\n", inst~>name, inst~>xy)    
     )
   )
 )

and then post what the output looks like.

Regards,

Andrew.

I took out the cv~>instHeaders and replace it with

      foreach(inst sort(cv~>instances lambda((a b) xCoord(a~>xy) < xCoord(b~>xy)))
        when( !member(inst~>libName skipLibList)
          instNameList = cons(inst~>name instNameList)
          printf("\tname=%s\txy=%L\n", inst~>name, inst~>xy)   
        )
      )

And that works now. 

Output :

    name=I0    xy=(-2.1875 1.125)
    name=Iz1    xy=(-1.375 0.0)
    name=I2    xy=(-0.375 0.8125)
    name=I3    xy=(0.25 0.8125)
    name=I4    xy=(1.25 0.0625)
    name=I5    xy=(2.3125 0.3125)

I don't know why the original code uses cv~>instHeaders and loop another foreach instHeader~>instances. 

Is there any difference between [1] and [2]?

[1]

foreach (inst cv~>instances

)

[2]

forearch(ih cv~>instHeaders

  foreach(ih~>instances

  )

)

If you're only interested in certain masters and have conditional code around the inner foreach over the instances for that instHeader, then the two loop approach will be more efficient. If you are visiting every instance, then there's not much in it.