kicad-developers team mailing list archive

[Cirilo Bernardo <cirilo_bernardo@xxxxxxxxx>]

----- Original Message -----
> From: Lorenzo Marcantonio <l.marcantonio@xxxxxxxxxxxx>
> To: Kicad Developers <kicad-developers@xxxxxxxxxxxxxxxxxxx>
> Cc: 
> Sent: Thursday, June 5, 2014 7:43 AM
> Subject: Re: [Kicad-developers] CERN work package 4 (Extend number of layers)
> 
> On Wed, Jun 04, 2014 at 03:35:05PM -0400, Wayne Stambaugh wrote:
>>  Backwards compatibility is not optional.  We should always be able read
> 
[snip]

> The only constraint to allocating slot numbers is the need to flip
> layers, i.e. determine the paired layer number. For fixed layer it's
> easy, they are enumerated. Single custom layers don't have the problem.
> Paired custom layers need to be identified. Other operations are always
> trivial IIRC.
> 


We can add yet another parameter associated with a layer, for example:
1. top / bottom
2. top / bottom / inner

In scheme (1) we can immediately decide whether a layer needs to be flipped or not.
scheme In (2) we can also apply constraints to copper layers such as
routing keepout for top / bottom / inner / all.

Maybe some other scheme would suit us better.

- Cirilo