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Subject: Re: [geda-user] The nature of gEDA layers
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From: John Doty <jpd AT noqsi DOT com>
In-Reply-To: <20160127202307.5e7142e45128a314d61a110f@gmail.com>
Date: Wed, 27 Jan 2016 12:39:14 -0700
Message-Id: <38CA6BA6-CFD3-4139-A849-CA92B4F9C58B@noqsi.com>
References: <alpine DOT DEB DOT 2 DOT 00 DOT 1601180756390 DOT 9035 AT igor2priv> <alpine DOT DEB DOT 2 DOT 00 DOT 1601260416150 DOT 9035 AT igor2priv> <56A751EC DOT 8030402 AT iae DOT nl> <20160126124701 DOT 0d061912c7e078ced9d4e6cb AT gmail DOT com> <CANEvwqgs3YFnt7m8mA1DN6X2KdWbyr4zpXCVH321vDo1f7CyxA AT mail DOT gmail DOT com> <201601261804 DOT u0QI4KEQ009550 AT envy DOT delorie DOT com> <E7D351BF-5BBB-41AC-B996-D5E27079A82C AT noqsi DOT com> <CAC4O8c-ZyNnCzCDHXkYYabSD4fG8vf+CKmhMycNJujGMPKzQDQ AT mail DOT gmail DOT com> <s6nr3h49hrq DOT fsf AT blaulicht DOT dmz DOT brux> <DDB07351-7C94-4B5C-99FA-83750CD4592A AT noqsi DOT com> <20160126233332 DOT dec2f06f5c74354a3841989c AT gmail DOT com> <s6n1t93h4ub DOT fsf AT blaulicht DOT dmz DOT brux> <20160127091746 DOT 1c7a976c2752f913921688ac AT gmail DOT com> <s6npowne74w DOT fsf AT blaulicht DOT dmz DOT brux> <20160127141334 DOT c738feb9dbeb54a7dec3dff8 AT gmail DOT com> <s6n37tjt1tv DOT fsf AT falbala DOT ieap DOT uni-kiel DOT de> <56A8F74B DOT 8080304 AT ecosensory DOT com> <CAC4O8c9UKLsh5FAAwUMEtHThKH-w3gUmCU2i9dRW9igkyRt-TQ AT mail DOT gmail DOT com> <CAJZxidDmjMtd_fKvR5qZVRa+hwDUbvfaz79oZjkBgDuE1m8RBg AT mail DOT gmail DOT com> <20160127202307.5e7142e45128a314d61a110f!
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On Jan 27, 2016, at 12:23 PM, Nicklas Karlsson =
(nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] =
<geda-user AT delorie DOT com> wrote:

>> Hello-
>>=20
>> I realize I'm not a frequent contributor to these discussions, and
>> consequently have no real "street cred", so feel free to disregard my
>> remarks. With that said, perhaps I can provide a perspective that =
someone
>> will find useful.
>>=20
>> I would suggest that a layer is really more of a container than =
anything
>> else, it is a way of collecting and grouping objects. ...
>=20
> Every object drawn end up on a layer as one or more drawing =
primitives. Layers basically have two colors if there should be material =
or not.

Not on *a* layer in general. Generally on multiple layers. That=92s why =
an object can=92t be associated with a specific layer without causing =
confusion. A container of objects is not a layer and deserves a =
distinctive name.

>=20
> The objects which should be drawn on the layers are however grouped in =
for example a footprint/element.
>=20
> Both layers and available drawing primitives are rather OK. There are =
however limitations on how it is possible to use drawing primitives =
inside element/footprint/via/pin and it is not possible reference =
predefined via/pin/pad. It would also be nice if objects could be marked =
as belonging to a sub layout so they could be selected and moved/copied.
>=20
>=20
> Nicklas Karlsson
>=20

John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com



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