Re: gEDA-user: gsch2pcb produces crap!

[Dan McMahill <dan@xxxxxxxxxxxx>]

> 	Long story short:  I am still trying to decide if there is a bug
> in gnetlist (really libgeda) that causes two nets to be created instead of
> one when you draw two nets that cross each other (but not connected
> together) and a pin connecting to the intersection of the two crossing
> nets.  Should the two nets be connect together with the pin even though
> the nets are not connect to each other?  Libgeda/gnetlist doesn't seem
> to think so.  Right now, I don't think so either, since you did not
> explicitly draw the nets to connect together.  However, I am interested
> to hear what other developers think.

Here are my thoughts

1)  gnetlist should never produce a netlist that claims a certain pin 
connects to two different nets.  To me this is the difference between a 
netlist which may have not been what you wanted and a netlist which is 
flat out broken.

2)  never, ever, draw schematics the way shown in the example.  I 
_never_ use 4-way connections.  By this I mean, don't draw something 
that looks like a + with a solder dot in the middle.  Instead draw a 
single vertical line and offset the 2 horizontal ones vertically from 
each other.  This recommendation goes all the way back to pre-computer 
era drafting.  Visually, it is easy to miss seeing the solder dot or see 
one which isn't there (make a few photocopies or fax a schematic). 
Also, gnetlist isn't the only netlister I've seen doing somethng funny 
in such a case.

So to summarize, GIGO (garbage in garbage out), but I'd like to see the 
output garbage be self consistent.

-Dan