Re: gEDA-user: Functional blocks and PCB format changes

[Steven Michalske <smichalske@xxxxxxxxx>]

On Sep 3, 2010, at 9:45 PM, Andrew Poelstra <asp11@xxxxxx> wrote:

> On Fri, Sep 03, 2010 at 04:44:14PM -0700, Andrew Poelstra wrote:
>> 
>>   However, this also brings the ability to edit PCB components individually,
>>   which means that some parts could have different layers than others, for
>>   example. And then you have to deal with layer mappings and stuff and it's
>>   a huge complicated mess, both for the user and in the code.
>> 
> 
> For layer mappings, things don't necessarily have to be difficult. Especially
> if we had a good file format, people could write their own scripts if they
> want to do crazy things.
> 
> In the meantime, we could:
> 
> 
> 1. Refuse to export-as-footprints any PCB with more than one copper layer.
>   This will likely eliminate the most common problems.
> 
Disallows for edge connectors that have an a and b side.

> 2. As for PCB components that are themselves PCBs (ie, recursive PCBs), we
>   could present the user with a mapping dialog when he tries to import a
>   sub-PCB.
> 
> 
> The dialog would look something like (when importing a 6-layer sub-PCB
> into a 5-layer PCB):
> 
> 
>  Imported PCB               Current PCB
>    Silk           -->         Silk
>    Top            -->         Top
>    Layer One      -->         Layer One
>    Layer Two      -->         Layer Two
>    Layer Three    -->         Bottom
>    Bottom         -->         *New Layer...*
> 
> 
> The left-hand column is read-only. The right-hand column consists of
> drop-down boxes listing all the existing layers. Selecting *New Layer...*
> would pop up the New Layer dialog.
> 
> We could even store this mapping information in the .pcb file and allow
> the user to change it after-the-fact.
> 
> 
I like this idea.

> Andrew
> 
> 
> 
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