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Date: Sat, 29 Jun 2013 20:08:48 -0700
From: Dave Curtis <davecurtis AT sonic DOT net>
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To: geda-user AT delorie DOT com
Subject: Re: [geda-user] gschem and metric sizes for symbols
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Reply-To: geda-user AT delorie DOT com

I guess you are worried about the size the symbol actually prints out at 
when you sent it to a printer?

Because the on-screen size and the size as defined in gschem units is 
essentially relative, even though it is specified in 1000th's of an inch.

The printing size is controlled by what you chose for a title block 
symbol.  The standard gEDA schematic symbols are huge, so I generally 
use a "B" size title block and print on "A" size paper (I forget the 
metric names for those paper sizes... sorry...)  So then the symbols are 
a nice size to read.

Maybe you can solve your problem by just using a 100 gschem-unit grid 
for creating symbols, but make your own title block that scales that to 
the correct metric length when printed? A title block symbol is easy to 
make.  With a small amount of experimentation, you can probably get the 
symbols to print at the size that you want.  (If I understand your 
concern correctly....)

-dave

On 06/29/2013 03:59 PM, Alexey Shaposhnikov wrote:
> I'm trying to do ESKD (exUSSR standards for design documentation and
> technical drawing)-compliant symbols for gschem and encountered with such
> problem: in ESKD are using metric sizes for graphical symbols, so place
> components pins on 100 mils grid either difficult (for something like JFET
> symbol: http://i.imgur.com/b2P56qH.png) or practically impossible (for trimming
> resistor symbol: http://i.imgur.com/ZGbXqav.png)
>
> So i must either use a custom grid size (40 mils) with scale 100 points = 2,5mm
> or recompile gEDA because at scale 100 points = 1 mm hardwired sizes for
> pins, nets and junctions became too small.
>
> Is there exist a more elegant solution?
>