Re: gEDA-user: gschem won't connect nets

[Bert Timmerman <bert.timmerman@xxxxxxxxx>]

Hi Stuart and all,

FWIW, I would like:

a) a hard coded "always on grid" placement of pins and nets with a (in
gschemrc) configurable grid spacing, and

b) a grid for drawing eye-candy and placement of attributes which can be
set during drawing/placement or prior to drawing/placement.

<example>
In a certain mechanical CAD application I can enter a "snap 100" in the
CLI of the app as to change the setting of grid the pointer snaps to.

During "move", "rotate", ... "copy" actions I can change the behaviour
with "'snap 50" (note the ' character in front of snap).
</example>

Since gschem doesn't have a CLI widget near the bottom of the window
this example doesn't apply today ...

Nevermind, you asked for thoughts :)

Just my EUR 0.02

Kind regards,

Bert Timmerman.

On Sun, 2008-05-25 at 07:39 -0400, Stuart Brorson wrote:
> > Maybe I am missing something.  We are talking about schematic
> > capture, right?  Why would you even need to control placement of
> > schematic symbol pins to 1 mil?
> 
> This is an interesting point.
> 
> The ability to turn the snap-to-grid on/off exists since there are
> situations where you want to draw lines and place text using a much
> finer grid than you can get with a 100x100 grid.  For example,
> consider drawing triangular op-amps.  It's hard to make them look good
> when the grid is turned on.
> 
> However, it is possibly true that you never need to place a *pin* with
> more than 100x100 accuracy.  Therefore, I wonder if one of the
> following ideas make sense:
> 
> *  Have a separate grid setting for pins and nets.   Make it 100x100,
> and only set it in gschemrc (so naive users don't turn it off while in
> the middle of using gschem)?
> 
> *  Make pins and nets use the current grid setting, but don't allow it
> to be turned off via the gschem menu item.   (Whether you can turn it
> off using a gschemrc setting is another question.)
> 
> *  Throw up a warning dialog box telling the user about the potential
> problem with pins off grid every time he resets the grid spacing, or
> turns the snap off.
> 
> Thoughts?
> 
> Stuart
> 
> 
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