@Tim Edwards Trying to add a cell that contains only subcut (automatically generated) and then flatten that cell with these commands.

ML_F3_TOP_mixed_subcut

is the name of the cell that contains only subcut and I want to place that in

ML_F3_TOP_mixed

and then flatten it.

load ML_F3_TOP_mixed_subcut
load ML_F3_TOP_mixed
box values 0 0 0 0
getcell ML_F3_TOP_mixed_subcut
puts stdout [cellname children ML_F3_TOP_mixed]
flatten -doinplace ML_F3_TOP_mixed_subcut
puts stdout [cellname children ML_F3_TOP_mixed]

This is the output

Cell ML_F3_TOP_mixed's children are:
    ML_F3_TOP_mixed_subcut
    ML_F3_TOP_analog
    ML_F3_TOP_digital

No cell use ML_F3_TOP_mixed_subcut found in edit cell.
Cell ML_F3_TOP_mixed's children are:
    ML_F3_TOP_mixed_subcut
    ML_F3_TOP_analog
    ML_F3_TOP_digital

Isn’t the edit cell supposed to be the last cell loaded? In this case,

ML_F3_TOP_mixed

. Do I need to save the cell once to generate the

use

line?

flatten -doinplace

is looking for a cell use, not a cell. You need to do

flatten -doinplace ML_F3_TOP_mixed_subcut_0

.

Before looking into your suggestion, I’m getting results I don’t understand from

load ML_F3_TOP_mixed
        puts stdout [cellname self]
        box values 0 0 0 0
        getcell ML_F3_TOP_mixed_subcut
        puts stdout [cellname children ML_F3_TOP_mixed]
        load ML_F3_TOP_mixed 
        puts stdout [cellname self]

This is what is output

Cell ML_F3_TOP_mixed is currently loaded.

Cell ML_F3_TOP_mixed's children are:
    ML_F3_TOP_mixed_subcut
    ML_F3_TOP_analog
    ML_F3_TOP_digital

Cell ML_F3_TOP_mixed_subcut is currently loaded.

I would expect the second

cellname self

to return

ML_F3_TOP_mixed

which was loaded immediately before the command.

I think

cellname self

is preferring a selected cell (not sure if that was the intended behavior, but it's apparently the implemented behavior). Doing a "load" does not invalidate or remove any selection in another cell, so the subcut cell is still selected from doing

getcell

even after the following

load

. The best thing to do is just to follow

load

with

select top cell

.

Looks like flattening the subcut inside the cell isn’t working. Currently creating at exactly the boundary (view bbox). Going to try making it just a bit bigger and/or adding it to the parent hierarchy.