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Hi all,
Could you tell me. Do you work in multi person on one PCB in Altium
Designer 2004? Do you route PCB in the same time on one layout? Do you
work in this case in Altium
Thank you for our help
Most decent programs will put up a dialog stating that someone else is usingWhat you are asking cannot be done with any reasonable assurance of no
troubles.
I assume that you are asking about multiple persons working on the file at
the same time, not over different time periods.
What you are asking cannot be done with any reasonable assurance of no
troubles.
There may be methods of doing this but the product is not intended for
that type of use, plain and simple. It isn't a $30k - $60k+ UNIX package.
--
Sincerely,
Brad Velander.
"maroni" <maroni@interia.pl> wrote in message
news:f2uaoc$bg$23@atlantis.news.tpi.pl...
Hi all,
Could you tell me. Do you work in multi person on one PCB in Altium
Designer 2004? Do you route PCB in the same time on one layout? Do you
work in this case in Altium
Thank you for our help
"Brad Velander" <bveland@SpamThis.com> wrote in message
news:HxQ4i.209129$6m4.119401@pd7urf1no...
What you are asking cannot be done with any reasonable assurance of no
troubles.
Most decent programs will put up a dialog stating that someone else is
using the program, and "would you like to open a read-only copy of the
file?"
As does Protel/Altium software, Joel.
"Joel Kolstad" <JKolstad71HatesSpam@yahoo.com> wrote in message
Most decent programs will put up a dialog stating that someone else is
using the program, and "would you like to open a read-only copy of the
file?"
Windows gets upset at numerous people trying to update the same file.Thanks Brad, good to know.
"Brad Velander" <bvel...@SpamThis.com> wrote in message
news:Uaa5i.216235$aG1.197963@pd7urf3no...
As does Protel/Altium software, Joel.
"Joel Kolstad" <JKolstad71HatesS...@yahoo.com> wrote in message
Most decent programs will put up a dialog stating that someone else is
using the program, and "would you like to open a read-only copy of the
file?"
That isn't really true. Windows (and other OSes) have plenty of fancy fileWindows gets upset at numerous people trying to update the same file.
Sure, but this isn't necessarily a bad thing. I was just pointing out thatIts not possible for 2 applications to alter the same file and send it
back to disc.
You would end up with the last write overwriting the first one.
Agreed, many applications do take this approach.Most applications have a very simple view of files.
You read it, modify it, the write it back.
Just "listening" for file modification events is actually not particularlyMicrosoft are one of the few companies that keeps looking at files to
see if they have been updated since it was loaded.
Its a big overhead in software and most programmers dont do it.
"Marra" <cresswellavenue@talktalk.net> wrote in message
news:1180136769.730295.314750@p47g2000hsd.googlegroups.com...
Its not possible for 2 applications to alter the same file and send it
back to disc.
You would end up with the last write overwriting the first one.
Sure, but this isn't necessarily a bad thing. I was just pointing out
that operating systems have provisions for all sort of fancy file-locking
semantics, and it's up to the application software to make use of these in
a meaningful manner.
Most applications have a very simple view of files.
You read it, modify it, the write it back.
Agreed, many applications do take this approach.
Microsoft are one of the few companies that keeps looking at files to
see if they have been updated since it was loaded.
Its a big overhead in software and most programmers dont do it.
Just "listening" for file modification events is actually not particularly
difficult at all... at least if you've already built yourself some
GUI-based program that has to listen for various system events anyway.
Then putting up a "Ignore or reload?" dialog and firing off a re-load
events is probably no more than 25-50 lines of code total.
---Joel
But this doesnt work !Joel,
Since you always seem so interested in various CAD system comments. On
the issues you are discussing, Protel P99SE/Altium AD does this fairly well.
It will allow multiple users to open single files, notifying each that there
are others with the same file open. Should one of the parties revise and
save the file, the program notifies everyone of the change. It then suggests
that they may want to update their files to reflect the recently saved
changes.
This does not allow for multiple users to work on the same design file
though. There are manners by which multiple Protel/Altium designers can work
on the files but it is the same for each and every CAD package. Manually
divide and conquer, then paste the various finished blocks back together. It
is workable but requires tremendous caution, great communication and
excellent cooperation.
--
Sincerely,
Brad Velander.
"Joel Kolstad" <JKolstad71HatesS...@yahoo.com> wrote in message
news:135p31eegqh54c6@corp.supernews.com...
"Marra" <cresswellave...@talktalk.net> wrote in message
news:1180136769.730295.314750@p47g2000hsd.googlegroups.com...
Its not possible for 2 applications to alter the same file and send it
back to disc.
You would end up with the last write overwriting the first one.
Sure, but this isn't necessarily a bad thing. I was just pointing out
that operating systems have provisions for all sort of fancy file-locking
semantics, and it's up to the application software to make use of these in
a meaningful manner.
Most applications have a very simple view of files.
You read it, modify it, the write it back.
Agreed, many applications do take this approach.
Microsoft are one of the few companies that keeps looking at files to
see if they have been updated since it was loaded.
Its a big overhead in software and most programmers dont do it.
Just "listening" for file modification events is actually not particularly
difficult at all... at least if you've already built yourself some
GUI-based program that has to listen for various system events anyway.
Then putting up a "Ignore or reload?" dialog and firing off a re-load
events is probably no more than 25-50 lines of code total.
---Joel
But this doesnt work !
What if 2 people at the same time modify a file?
Which one should the system take as being the right one
Point proved !
If Cadence is interested in doing this, perhaps they could hire some of theWhat you would need would be a multi-window application, where each
individual is actually working on the same 'internal' database. It would
necessitate a lot of network action, as each users manipulations of the data
would need to IMMEDIATELY appear in all other users virtual database. It
might actually be doable, but would get real interesting as the user count
went up!
If Cadence is interested in doing this, perhaps they could hire some of
the programmers from, e.g., Everquest or one of the other massively
multiplayer games? Now *there's* a difficult "simultaneous access"
problem: Even though the games are split across many servers, there's
typically still thousands of users accessing the same "zone" whereby any
changes they make have to be propagated to everyone else if they're
relevant.
Altium sounds like it's one step ahead of ORCAD in that Brad tells us it
keeps listening for file changes even after you've opened a read only copy
because Joe down the hallway is modifiyng the schematic. As far as I can
tell, ORCAD tells you just when you try to open the file that it's
read-only or nothing, and after that it quits listening for file update
messages. I'm not complaining though -- while ORCAD's behavior in this
regard is about the minimum I'd expect, it's also adequate for my uses.
---Joel
Ah, thanks for the clarification; my mistake.Don't know if I said something that you interpretted as multiple file
openings being "read only" but that was not the intent. The files are all
'live' unless you have taken some other measure to make them read only. Any
user could save their copy and destroy anybody else's copy.
Offerings form both Mentor and Cadence offer team based designI'm not aware of any PC based layout program that allows multiple
seats to simultaneously work on the same open PCB.