gEDA-dev: New diagram (attempt at UML)

[Steve Meier]

Peter,

I am re-visiting the concepts of hierarchy and pages. I was forced to
since I started looking at the "hierarchy.c" file.

Do you think that the page structure should include a list pages that
are one hierarchical level down? I think that this would allow the
construction of hierarchical branches.

Steve Meier

Peter Clifton wrote:
> There is an updated diagram at:
>
> http://www2.eng.cam.ac.uk/~pcjc2/geda/datastructures.pdf
>
> I had missed the link between a net of the per-circuit netlist, and its
> Mports. (Allowing external connectivity with the netlist).
>
> Similarly, I removed the link between a net and pins on the page, as the
> pins are just GUI representations of the Mport. You can go
> pin<->Mport<->Net to get the relationship between the two.
>
> I also added a "Graphical View" just to spell out where things like GUI
> view parameters fit into the equation.
>
> I still need to look at structures for a "flattened", or global netlist,
> which is derived from the per-circuit (hierarchical) netlists. These may
> be done on a per-circuit, or per-design basis, and help to provide the
> missing links for cross probing, and back annotation.
>
> Regards,
>
> Peter Clifton
>
>
>
>
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