← Back to team overview

kicad-developers team mailing list archive

Re: [RFC] Symbol library file format


I have a few questions regarding multi part (or multi unit) symbols. (I do not really see a clear indication for these features in your document.)

Is there a definition for having only some units exchangeable?
Is there a way to define a unit as "must be placed" or "optional"?
Is there a way to mark a unit as "power unit" (I think you mentioned sometime back that this might be required to properly make simulation for multi unit symbols possible while still allowing the power unit to be separate. A power unit would also be a "must be placed unit" but i feel separating these two might add more flexibility.)

On 01/01/19 20:59, Wayne Stambaugh wrote:
I have updated and published the symbol file format[1] for comment.
Hopefully there isn't too much to change.  The only thing to really
finalize is the internal units.  The initial concept was unitless but
the more I think about it and discuss with other developers, it makes
more sense to use units for the following reasons:

1. It's easier to visualize in your head how the symbols on a given page
size will layout.

2. Converting from other file formats (Eagle, Altium, etc) will be
easier since most if not all of them have a defined unit.

I'm thinking 10u (or possibly 100u) will make a good internal units
value.  Once we nail down the units, I will update the file format
document accordingly.

Please keep in mind that this is the symbol library file format document
so things like constraints belong in the schematic file format.  I will
be posting the schematic file format as soon as I finish updating it.




Mailing list: https://launchpad.net/~kicad-developers
Post to     : kicad-developers@xxxxxxxxxxxxxxxxxxx
Unsubscribe : https://launchpad.net/~kicad-developers
More help   : https://help.launchpad.net/ListHelp

Follow ups