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Mail Archives: geda-user/2016/01/09/08:40:26

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Subject: Re: [geda-user] Primitive electrical types [WAS: Re: first attempt at bus support in gnetlist for pcb]
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From: John Doty <jpd AT noqsi DOT com>
In-Reply-To: <CAJXU7q8edycnyhZbZ7+M3q6HA13U4Tr5R9M7KAG59HVpH2+cMg@mail.gmail.com>
Date: Sat, 9 Jan 2016 08:39:53 -0500
Message-Id: <6CD06E56-4FC6-4CFD-A6A8-0297CC1F995B@noqsi.com>
References: <CAJXU7q8edycnyhZbZ7+M3q6HA13U4Tr5R9M7KAG59HVpH2+cMg AT mail DOT gmail DOT com>
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On Jan 9, 2016, at 7:55 AM, Peter Clifton =
(petercjclifton AT googlemail DOT com) [via geda-user AT delorie DOT com] =
<geda-user AT delorie DOT com> wrote:

> Whether or not this is fully factored in the code or not, from the =
graphical entity point of view these are effectively sub-type =
specialisations of the line primitive, as John has suggested. Whilst it =
would be technically possible to take this as a more "duck typed" =
approach, I'd probably not suggest it.

What I was trying to get at is that I see line drawing style as a =
fundamentally orthogonal issue to line =93type". What we have now is =
hard-wired, except for purely graphical lines. That doesn=92t fit all =
uses. It gets us into unresolvable arguments over thick net segments for =
power versus thin segments for signals. Conventions are good. Defaults =
implementing conventions are good. Hard wiring them is bad.

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



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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;"><br><div><div>On Jan 9, 2016, at 7:55 AM, Peter =
Clifton (<a =
href=3D"mailto:petercjclifton AT googlemail DOT com">petercjclifton AT googlemail DOT co=
m</a>) [via <a =
href=3D"mailto:geda-user AT delorie DOT com">geda-user AT delorie DOT com</a>] &lt;<a =
href=3D"mailto:geda-user AT delorie DOT com">geda-user AT delorie DOT com</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><span style=3D"font-family: Helvetica; font-size: 12px; =
font-style: normal; font-variant: normal; font-weight: normal; =
letter-spacing: normal; line-height: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: =
none; display: inline !important;">Whether or not this is fully factored =
in the code or not, from the graphical entity point of view these are =
effectively sub-type specialisations of the line primitive, as John has =
suggested. Whilst it would be technically possible to take this as a =
more "duck typed" approach, I'd probably not suggest it.</span><br =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant: normal; font-weight: normal; letter-spacing: normal; =
line-height: normal; orphans: auto; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: auto; word-spacing: =
0px; -webkit-text-stroke-width: 0px;"></blockquote><br></div><div>What I =
was trying to get at is that I see line drawing style as a fundamentally =
orthogonal issue to line =93type". What we have now is hard-wired, =
except for purely graphical lines. That doesn=92t fit all uses. It gets =
us into unresolvable arguments over thick net segments for power versus =
thin segments for signals. Conventions are good. Defaults implementing =
conventions are good. Hard wiring them is bad.</div><br><div =
apple-content-edited=3D"true">
<span class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><p style=3D"margin: =
0.0px 0.0px 0.0px 0.0px"><font face=3D"Helvetica" size=3D"3" =
style=3D"font: 12.0px Helvetica">John Doty<span =
class=3D"Apple-converted-space">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><span =
class=3D"Apple-converted-tab">&nbsp; &nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span></span></span>Noqsi =
Aerospace, Ltd.</font></p><p style=3D"margin: 0.0px 0.0px 0.0px =
0.0px"><a href=3D"http://www.noqsi.com/">http://www.noqsi.com/</a></p><p =
style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><font face=3D"Helvetica" =
size=3D"3" style=3D"font: 12.0px Helvetica"><a =
href=3D"mailto:jpd AT noqsi DOT com">jpd AT noqsi DOT com</a></font></p><br =
class=3D"Apple-interchange-newline"></span>
</div>
<br></body></html>=

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