Chapter III: HIERARCHY
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Rearranging Hierarchy |
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In order to manipulate hierarchical circuits, it is useful
to create and delete levels of the hierarchy.
The Package into Facet command of the Facets
menu collects everything in the highlighted area into a new facet.
You will be prompted for the facet name.
The most convenient way to specify an area for packaging
is to use the rectangle select
button and drag a rectangle.
Every node touching the area is included in the new facet.
All arcs between nodes in the area are also included.
The highlighted circuitry is not affected.
The opposite command is Extract Facet Instance,
which takes the currently highlighted facet instances
and replaces them with their facet's contents.
Repeated uses of this command go further down the
hierarchy until it is fully instantiated.
All arcs that were connected to the facet instances
are reconnected to the correct parts of the instantiated circuitry.