Re: gEDA-user: gEDA vs commercial product

[John Griessen <john@xxxxxxxxxxxxxx>]

Alessandro Baretta wrote:
> > Dan McMahill wrote:
> > As far as multipage projects....  Do you mean a flat hierarchy but 
> > with multiple pages? 

I'd like to have all my project in a single file.

[jg]This sounds odd to me at first, but I like it.  Why not have
a page module defined within a file so one file could contain 100 pages?
We're talking having hierarchy modules with ports patterned after verilog already...

> This makes me go mad: try printing a 40 page 
> project one page at a time! 

[jg]  This would fall out of getting scripting languages hooked in...
and it could be easier than at present if the above one file idea was implemented.


gEDA lacks the automatic production of cabling diagrams and loop diagrams,

A cabling diagram lists the wires
> one by one, identifying the endpoints of each wire.

A loop diagram is a tree diagram of
> the connections from all devices using power deriving from the mains: motors, 
> lighting equipment, heaters, etc.) to the mains. 

[jg]The cabling and loop diagrams sound like they would need a scripting language
(or three) hooked into the mouse-click commands of gschem before it would be easy to do.
It implies modes where buss creation is
shown fully expanded in cabling views, and hidden somewhat in topology and loop view.
Also it sounds like Alex is wanting topology to be the drawing-a-design view.  Topology
view is pretty much what we have but with busses working in tidy fashion.



 it easily allows the technician to identify trace the
> wiring from a device which is not working backward to the various 
> switchgear between it and the mains.

a notion of modular components
> (think of a relay, where the solenoid appears on one page and each of 
> the contacts on a potentially different page).
This we have already.  It's the multiple symbols with same refdes concept.

 It provides automatic
> numbering of pages, components and wires, 
[jg]Comes from scripting hooks to atomic commands in gschem again...

and it allows me to associate
> real world product codes to the idealized IEC symbols. 
[jg]gattrib, and/or improved partlist and BOM projects using attribs can do this.

These features
> are essential for professional electrical design.

> Alex

Sounds to me like we are close to imagining someone taking this on as a consulting gig...
The groundwork is coming together for it already.

John Griessen



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