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Date: Mon, 30 Jan 2012 08:59:47 -0800
From: Colin D Bennett <colin AT gibibit DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] PCB unable to set grid increment finer than
 0.0254mm
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On Sun, 29 Jan 2012 12:24:57 -0800
Andrew Poelstra <asp11 AT sfu DOT ca> wrote:

> On Sun, Jan 29, 2012 at 06:47:25PM +0000, Chris Smith wrote:
> > Hi,
> > 
> > I'm having a problem with PCB (compiled from git head) using
> > GTK.  In the Increments preferences panel it won't allow me to
> > set a grid or size increment finer than 0.0254mm.  I notice the
> > same thing for the line/clear increments, but here the limit is
> > 0.0127mm.
> > 
> > Does anyone know if there is a reason for these limits, and how
> > I can change them?
> >
> 
> There is no reason -- IIRC, those limits were already there when I
> changed the code to use the new "XXX mm" spin-boxes. You can
> change them from the source...
> 
> BUT, the 'increments' panel does not do anything. This is a
> longstanding bug, which has gone unfixed because nobody has taken
> the time to decide what to do for default values (and limits),
> now that we have a plethora of different units to choose from.
> 
> See: https://bugs.launchpad.net/pcb/+bug/699464

Well, the proper way to fix this problem is to implement the
superior grid system as in Bug #724154, ”[enh] New grids for GTK PCB”.
< https://bugs.launchpad.net/pcb/+bug/724154 >

Ping! Does anyone else crave this patch?  It is so much better than
the current grid system.  I haven't tried to apply
the patch for a long time however... it probably needs some love
since the nanometer conversion at least.

The concern about how to store the new, enhanced grid settings is
lessened since we're now using the Attribute[] pcb file format
feature to store the basic grid information.

Regards,
Colin