People seem to be confusing schematic annotation based on the original
placement of parts with re-annotation done later with the Tools-Annotate... menu
item.
I did a little checking on re-annotation by placing a grid of resistors on
the sheet and then re-annotating them. The funny stuff occures because the
parts are worked on by reference zone (A1, B2 etc.) following the re-annotate
method pattern set up in the dialog. Within the reference zone a different
pattern is followed. The in-zone pattern seems to be rotated 90 degrees from
the one that was set up. This makes annotation placement look partially random
on a normal schematic but with reasonable order when seen on a nice grid of
parts.
Now I see that the original message was talking about PCB re-annotation. I
haven't tried it yet but I would guess that similar zones or grids are used.
Eric
[EMAIL PROTECTED] wrote:
> Ivan,
> You would be correct. The annotation in schematic has nothing to do with
> position. It is indeed related to order of placement. This practice is
> consistent in 99SE as is was in Client 3.x. My question is why would you
> care what order the annotation is in schematic anyway? The back annotate
> feature works from re-annotating the pcb then back annotating the schematic,
> not the other way around.
> Regards,
>
> Lloyd Good
> Engineering Systems Co-ordinator
> GE Harris Energy Control Systems Canada Inc.
> 2728 Hopewell Place NE
> Calgary, AB, Canada T1Y 7J7
> * +1 (403) 214-4777
> * +1 (403) 287-7946
>
> -----Original Message-----
> From: Bagotronix Tech Support [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 05, 2001 10:04 AM
> To: Protel EDA Forum
> Subject: Re: [PEDA] :Positional re-annotation
>
> I always thought the annotation was in the temporal order in which parts
> were placed in a schematic.
>
> The first U? you place will be U1, the next will be U2, etc.
>
> It doesn't seem to have anything to do with the X,Y coordinates or sheet #.
>
> Of course, that is for Protel SCH 3.X. I haven't made any new schematics
> with 99SE yet to see how it works. Probably the same.
>
> Best regards,
> Ivan Baggett
> Bagotronix Inc.
> website: www.bagotronix.com
>
> ----- Original Message -----
> From: "Brad Velander" <[EMAIL PROTECTED]>
> To: "'Protel EDA Forum'" <[EMAIL PROTECTED]>
> Sent: Tuesday, June 05, 2001 11:53 AM
> Subject: Re: [PEDA] :Positional re-annotation
>
> > Ian,
> > I can confirm that I see similar problems. I have several designs
> > which do not quite make sense as to how the re-annotation was conducted.
> As
> > you state some of the annotation looks exactly as expected but then there
> > are anomalies throughout some sections or component types. Bug, I don't
> > quite expect so. The issue is probably in how it partitions a sheet for
> > annotation and how the components may possibly overhang into other areas
> of
> > the screen because of fields or other items (some may not be visible, i.e.
> > partfields 1 - 16).
> >
> > Brad Velander,
> > Lead PCB Designer,
> > Norsat International Inc.,
> > #300 - 4401 Still Creek Dr.,
> > Burnaby, B.C., V5C 6G9.
> > Tel. (604) 292-9089 direct
> > Fax (604) 292-9010
> > website www.norsat.com
> >
> >
> > > -----Original Message-----
> > > From: Ian Rozowsky [mailto:[EMAIL PROTECTED]]
> > > Sent: Tuesday, June 05, 2001 3:48 AM
> > > To: Protel EDA Forum
> > > Subject: [PEDA] :Positional re-annotation
> > >
> > >
> > > Hi all
> > >
> > > Is it just me, or does positional re-annotation not work too
> > > well? A colleague of mine has a PCB with around 300
> > > components. When he selects re-annotate, the result is not as
> > > expected - some components are re-annotated in the expected
> > > sequence, but others are not. Is this a bug, or am I missing a point?
> > >
> > > Regards
> > >
> > > Ian Rozowsky
> > > Engineering Manager
> > > Centurion Systems
> > > P.O. Box 506
> > > Cramerview 2060
> > > South Africa
> > > Tel : +27-11-462-4499
> > > Fax : +27-11-704-3412
> > > e-mail: [EMAIL PROTECTED]
> > > web: http://www.centsys.co.za
> > >
> >
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