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The Flatten Button: Flatten Hierarchy
This button brings up a small pop-up which controls flattening of the
hierarchy by moving the contents of selected subcells into the current
cell. A Depth choice menu selects the depth into the hierarchy
to flatten. If 1, only geometry in the subcell is flattened, and
sub-subcells are placed. If ``all'', the entire subcell
hierarchy is flattened. There is also a button to skip box and wire
merging and undo list processing operations for speed. This may be
desirable for flattening complex cells, which may take a long time to
process. In this mode, there is no ``undo'' capability, however.
The Flatten button on the pop-up initiates the operation. The
subcells to be flattened must have been selected at this point.
Pressing Ctrl-C will pause the process, and give the user the
option of terminating the job. It is usually not desirable to stop in
the middle of a flatten operation, but invoking this prompt may
reassure the user that the operation is in progress and not ``hung''.
The symbolic data from flattened subcells are added to the symbolic
part of the current cell, in electrical mode. This will only be
visible if the current cell is in symbolic mode (see the symbl
button).
Next: The Create Cell Button:
Up: The Edit Menu: Modify
Previous: The Pop Button: Pop
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Stephen R. Whiteley
2006-10-23