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Mail Archives: geda-user/2019/03/12/13:57:26

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Date: 12 Mar 2019 17:54:49 UTC
From: "(mail AT crcomp DOT net) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: <geda-user AT delorie DOT com>
Subject: Re: [geda-user] Re: Is FreeRotateBuffer implemented in gschem?
References: <20190308184833 DOT B87F285E7F7D AT turkos DOT aspodata DOT se>
Reply-To: geda-user AT delorie DOT com

 karl AT aspodata DOT se wrote:
 > Don Kuenz:
 > ...
 >> FreeRotateBuffer allows any degree of rotation, which is more versatile
 >> than "E R"'s fixed 90° rotation. Anyhow, FreeRotateBuffer is not
 >> implemented in gschem, which answers my question.
 >>     My goal to rotate a zenier diode by 45° in gschem seems unobtainable
 >> at present.
 >
 > I have http://aspodata.se/git/openhw/bin/fp_rotate.pl and
 > http://aspodata.se/git/openhw/share/gschem/scale_sym.pl.
 >
 > I might do what you want if there sufficient interest.
 > Question is how to handle pin ends, should one snap them
 > nearest grid point or the closest in the pins general direction, and
 > what grid size should one use ? So rotate first 45° and then -45°
 > wouln't get back to same thing.
 >
 > If it is for 45° increments only, then one could rotate and then scale
 > the sym up/down by sqrt(2).
 
 My goal is to assemble a diamond shaped bridge rectifier out of four
 diodes. Any 45° rotation of a zener will be done only once. Your idea is
 easy for me to understand. The other ideas mentioned in this thread are 
 over my head.
 
 My best bet is probably to take an existing symbol such as:
 
 http://www.gedasymbols.org/user/amand_tihon/symbols/diode/diode-bridge-2.sym
 
 and modify it by replacing the bottom diodes with zeners. If that 
 happens my new symbol will get uploaded to gedasymbols.org, if possible. 
 
 Thank you, 73,
 
 -- 
 Don Kuenz KB7RPU
 There was a young lady named Bright Whose speed was far faster than light;
 She set out one day In a relative way And returned on the previous night.
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