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Date: Wed, 22 Feb 2012 09:30:08 -0800
From: Colin D Bennett <colin AT gibibit DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] gschem filled polygons?
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On Wed, 22 Feb 2012 12:38:45 +0100
Stefan Salewski <mail AT ssalewski DOT de> wrote:

> On Tue, 2012-02-21 at 17:01 -0800, Colin D Bennett wrote:
> 
> > That's hard core!!
> > It's a secret expert mode so that only the elite can create
> > beautiful symbols.
> > 
> > > Details on the file format here:
> > > http://wiki.geda-project.org/geda:file_format_spec#path
> > > http://wiki.geda-project.org/geda:file_format_spec#path_data
> > 
> 
> It's a result from the switch to cairo made by Peter C -- Cairo
> can do Bezier curves, filled shapes and more -- but we have still
> to implement the GUI editor. 
> 
> For what do you like to have that? I can only imagine fills for
> diodes and transistors -- filled rectangles we already have.

Yup, I was trying to make a better transistor symbol (I find the
gschem default library ones... less than beautiful).  Also for
diodes.

> Do
> you want fancy Bezier curves for symbols? Personally I do not
> really desire that. But later I intend to implement basic Bezier
> curve/path editing in my Ruby gschem clone.

I don't know whether I would have a use for Bezier curves, but it
could be handy for e.g., showing waveforms on the schematic or
including company logos, product appearance drawings, or for
non-electronic uses along the lines of the hydraulic schematics
I've seen.

> If we want really "GREAT" graphics with color gradients, curved
> paths and all that, we may think of importing inkscape's SVG
> graphics -- but do we really need/want that? And is it easy for
> you to draw that in inkscape? For me not -- I still have to learn
> using inkscape, and most difficult point, I still have to be an
> artist.

Inkscape is nice, and I like it, but it is a bloated hog of a
program. It takes about 20 seconds to load on my fast dual-core
laptop. Even bloated LibreOffice/OpenOffice loads faster.
It would be nice to be able to paste a vector drawing of a
waveform, company logo, product appearance, etc. right into gschem,
but not at the cost of making gschem slow.  Its speed and
lightweightness is a great strength.

Regards,
Colin