kicad-developers team mailing list archive

[Oliver Walters <oliver.henry.walters@xxxxxxxxx>]

Wayne,

Is there any possibility that this will break existing schematic
> netlists?


There is no guarantee that this will not change netlist, especially as
netlist association is performed based on x,y position of pins.

I have just tested this, opening the same schematic in versions with this
patch ON / OFF. The NC connections are made / unmade whenever the schematic
is loaded.

I do not believe there is any way around this.

Oliver

On Wed, Mar 8, 2017 at 12:54 AM, Wayne Stambaugh <stambaughw@xxxxxxxxx>
wrote:

> Oliver,
>
> Is there any possibility that this will break existing schematic
> netlists?  I'm assuming this patch only prevents the user from
> generating new invisible/no-connect connections.
>
> Is anyone else opposed to this?
>
> Cheers,
>
> Wayne
>
> On 3/7/2017 7:33 AM, Oliver Walters wrote:
> > Is there any objection to applying this patch in its current form? Note
> > that all it prevents is users accidentally joining pins that are already
> > invisible AND non-connect.
> >
> > Cheers,
> > Oliver
> >
> > On Wed, Feb 8, 2017 at 11:05 PM, Oliver Walters
> > <oliver.henry.walters@xxxxxxxxx <mailto:oliver.henry.walters@xxxxxxxxx>>
> > wrote:
> >
> >     Urgh, patch attached here.
> >
> >     On Wed, Feb 8, 2017 at 11:04 PM, Oliver Walters
> >     <oliver.henry.walters@xxxxxxxxx
> >     <mailto:oliver.henry.walters@xxxxxxxxx>> wrote:
> >
> >         I have amended the patch to only ignore connection of pins that
> >         are both INVISIBLE and NC (Electrical Type = Not Connected).
> >         This will improve the safety of the current libraries which do
> >         contain many parts with NC pins set as invisible.
> >
> >         It will also NOT change the behaviour of people using invisible
> >         pins for one-to-many connection.
> >
> >         Thoughts?
> >
> >         On Tue, Feb 7, 2017 at 7:47 PM, Oliver Walters
> >         <oliver.henry.walters@xxxxxxxxx
> >         <mailto:oliver.henry.walters@xxxxxxxxx>> wrote:
> >
> >             Hi all,
> >
> >             The attached patch prevents invisible pins from being
> >             connected using the wire tool in eeschema.
> >
> >             a) If you connect a wire endpoint to the same position as a
> >             pin endpoint, they are NOT connected visually
> >             b) Wires and insivible pins are also ignored during netlist
> >             creation
> >             c) This does not affect the ability of invisible power-pins
> >             to automatically connect to global power labels
> >
> >             Is the current behavior of connecting invisible pins to wire
> >             endpoints desired? Or is it just an aberration?
> >
> >             If there is a very good reason that pins not visible in the
> >             schematic are able to be connected silently?
> >
> >             before: http://i.imgur.com/3gModvW.png
> >             <http://i.imgur.com/3gModvW.png>
> >
> >             after: http://i.imgur.com/r8O7c3Y.png
> >             <http://i.imgur.com/r8O7c3Y.png>
> >
> >             (Note the 'dangling' wire-end indication)
> >
> >             Cheers,
> >             Oliver
> >
> >
> >
> >
> >
> >
> >
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