On Mo= n, Jun 15, 2015 at 9:55 AM, Cirilo Bernardo (cirilo_bernardo AT yahoo DOT com) <geda-user AT delorie DOT com> wrote:

Sharing a common for= mat will indeed be possible but we would need people to

study what can be shared. At the moment for example KiCad supports 32
copper layers and 32 technical layers; mapping copper layers is easy
provided both software packages can support the same number of layers but the mapping of the technical layers requires more coordination.
For drawing outlines KiCad only has circular arc and line segments;
there is currently no support for ellipses and such though I imagine
in the future some people may demand a few curve types which are
also supported by MCAD software, particularly Polynomial Curves and
NURBS. KiCad has no pad stack though some people say they will try to
find time to implement it.=C2=A0 These are just a small portion of issues which need to be addressed when communicating data between different
software.

- Cirilo

>________________________________
> From: "timofonic timofonic timofonic AT gmail DOT com [kicad-users]" <kicad-users AT yahoogroups DOT com>
>To: geda-user AT delorie DOT com<= br> >Cc: foss-pcb AT ohwr DOT org; The Ope= n Source Hardware Association Discussion List <discuss AT lists DOT oshwa DOT org>; kicad-users AT yahoogroups DOT com
>Sent: Sunday, June 14, 2015 11:40 PM
>Subject: [kicad-users] Re: [geda-user] Any news about FOSS EDA coordina= tion? Import/export, common file format

>
>
>
>
>Oh, the idea looked promising...
>So what about kicad and geda supporting both formats at least? What abo= ut sharing the same library? :)
>
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>
>On Jun 11, 2015 5:27 PM, "Ouabache Designworks (z3qmtr45 AT gmail DOT com)" <geda-user AT delorie DOT com> wrote:
>
>
>>
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>>
>>On Wed, Jun 10, 2015 at 11:29 PM, timofonic timofonic (timofonic AT gmail DOT com) <geda-user AT delorie DOT com> wrote:
>>
>>What's wrong with IP-XACT?
>>
>>
>>It was created by the spirit consortium that was made up from engin= eers from eda tool vendors, IP houses and Si vendors. Correct me if I am wr= ong but I don't think that they had anyone on the committe who's da= y job=C2=A0 actually involved designing IC's.=C2=A0 The biggest complai= nt is that to use it you have to use vendorExtensions to do anything useful= and once you add that you have the same old problem that EDIF had with eac= h vendor having their own "flavor" of IP-Xact.
>>
>>
>>My biggest grip was that they don't support design variants tha= t are critical in IC design. They support parameters but parameters cannot = change a port list or a file list. If your
>>
>>design variant needs to change either of those then you are out of = luck.
>>
>>
>>IP-Xact has seen some adoption as a way to describe register bits w= ith tools that read an IP-Xact component file to generate the RTL,documenta= tion and head files for those registers. But it is capable of doing a lot m= ore than that.
>>
>>
>>I see IP-Xact as a case of pulling defeat from the jaws of victory.= =C2=A0 It has some really great features that are usefull. For example if y= ou add one IP-Xact file into your IP repository then that will provide=C2= =A0 a unique identifier for your IP. No other repo in the world will have t= hat same id, no more naming collisions.
>>
>>
>>IP-Xact is a packaging standard that does not tell you how to packa= ge anything at all. They knew that nobody was going to adopt it if they had= change anything in their legacy IP so that all you have to do is to add an= IP-Xact file anywhere in your legacy repos and they will be IP-Xact compli= ant.
>>
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>>
>>John Eaton
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