Re: gEDA-user: Hiding individual layers of a layer-group

2011-05-11 Thread Peter Clifton
On Wed, 2011-05-11 at 21:41 +1000, Geoff Swan wrote:
 Hi folks, I've just started using separate layers so for my polygons so
that I can hide them when necessary. This works fine until I group them
with the appropriate layer. Ie - top and ground in a layer grouping -
with ground being the layer I am putting polygons on. When I go to hide
the ground layer - the top layer is also hidden. If I put them in
separate groups this doesn't happen - however it seems that if I put
them in separate groups the DRC breaks...
is there any way around this??

To achieve the visual clarity I guess you're looking for, switch to the
pcb+gl branch and turn on thin draw polygons.

Alternatively, thin draw polygons in git HEAD might still help you.
The keyboard short-cut is Ctrl + Shift + P

-- 
Peter Clifton

Electrical Engineering Division,
Engineering Department,
University of Cambridge,
9, JJ Thomson Avenue,
Cambridge
CB3 0FA

Tel: +44 (0)7729 980173 - (No signal in the lab!)
Tel: +44 (0)1223 748328 - (Shared lab phone, ask for me)


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Re: gEDA-user: Hiding individual layers of a layer-group

2011-05-11 Thread Colin D Bennett
On Wed, 11 May 2011 13:12:55 +0100
Peter Clifton pc...@cam.ac.uk wrote:

 On Wed, 2011-05-11 at 21:41 +1000, Geoff Swan wrote:
  Hi folks, I've just started using separate layers so for my
  polygons so that I can hide them when necessary. This works fine
  until I group them with the appropriate layer. Ie - top and ground
  in a layer grouping - with ground being the layer I am putting
  polygons on. When I go to hide the ground layer - the top layer is
  also hidden. If I put them in separate groups this doesn't happen -
  however it seems that if I put them in separate groups the DRC
  breaks... is there any way around this??
 
 To achieve the visual clarity I guess you're looking for, switch to
 the pcb+gl branch and turn on thin draw polygons.
 
 Alternatively, thin draw polygons in git HEAD might still help you.
 The keyboard short-cut is Ctrl + Shift + P

I do find that Thin Draw Polygons is helpful sometimes.  However I also
find many times that I would like to be able to show only specific
layers (not whole layer groups).  For instance, if I want to rip up all
my ground plane polygons, I would like to be able to show only the
ground plane layer (which is in the top layer's group) so that I can
select all to select only the ground plane copper.

Regards,
Colin


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Re: gEDA-user: Hiding individual layers of a layer-group

2011-05-11 Thread Colin D Bennett
On Wed, 11 May 2011 13:12:55 +0100
Peter Clifton pc...@cam.ac.uk wrote:

 On Wed, 2011-05-11 at 21:41 +1000, Geoff Swan wrote:
  Hi folks, I've just started using separate layers so for my
  polygons so that I can hide them when necessary. This works fine
  until I group them with the appropriate layer. Ie - top and ground
  in a layer grouping - with ground being the layer I am putting
  polygons on. When I go to hide the ground layer - the top layer is
  also hidden. If I put them in separate groups this doesn't happen -
  however it seems that if I put them in separate groups the DRC
  breaks... is there any way around this??
 
 To achieve the visual clarity I guess you're looking for, switch to
 the pcb+gl branch and turn on thin draw polygons.
 
 Alternatively, thin draw polygons in git HEAD might still help you.
 The keyboard short-cut is Ctrl + Shift + P

Did I miss something or is Thin Draw Polygons (Ctrl+Shift+P) a feature
that has been around at least for a couple of pcb releases?  Does it
differ from pcb+gl to mainline git HEAD?  I have used both and it seems
the same.

Regards,
Colin


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Re: gEDA-user: Hiding individual layers of a layer-group

2011-05-11 Thread Kai-Martin Knaak
Colin D Bennett wrote:

 Does it differ from pcb+gl to mainline git HEAD?

The pcb+gl version looks nicer :-)
The polygon area is still rendered but very transparent.

If this feature enters pcb-HEAD, there should be an option to really suppress
polygon recalculation and maybe rendering, too. This is very useful when slow
graphics meets complex layout. Think aged thinkpads, or that old desktop from 
2001 in the barn. 

---)kaimartin(---
-- 
Kai-Martin Knaak  tel: +49-511-762-2895
Universität Hannover, Inst. für Quantenoptik  fax: +49-511-762-2211 
Welfengarten 1, 30167 Hannover   http://www.iqo.uni-hannover.de
GPG key:http://pgp.mit.edu:11371/pks/lookup?search=Knaak+kmkop=get



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Re: gEDA-user: Hiding individual layers of a layer-group

2011-05-11 Thread Colin D Bennett
On Wed, 11 May 2011 17:30:22 +0200
Kai-Martin Knaak kn...@iqo.uni-hannover.de wrote:

 Colin D Bennett wrote:
 
  Does it differ from pcb+gl to mainline git HEAD?
 
 The pcb+gl version looks nicer :-)
 The polygon area is still rendered but very transparent.

Ah, now that you mention it, I do remember noticing that before.  It is
a nice feature.  In fact it was so natural that I forgot it existed. :-)

Regards,
Colin


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Re: gEDA-user: Hiding individual layers of a layer-group

2011-05-11 Thread Peter Clifton
On Wed, 2011-05-11 at 07:16 -0700, Colin D Bennett wrote:
 On Wed, 11 May 2011 13:12:55 +0100
 Peter Clifton pc...@cam.ac.uk wrote:
 
  On Wed, 2011-05-11 at 21:41 +1000, Geoff Swan wrote:
   Hi folks, I've just started using separate layers so for my
   polygons so that I can hide them when necessary. This works fine
   until I group them with the appropriate layer. Ie - top and ground
   in a layer grouping - with ground being the layer I am putting
   polygons on. When I go to hide the ground layer - the top layer is
   also hidden. If I put them in separate groups this doesn't happen -
   however it seems that if I put them in separate groups the DRC
   breaks... is there any way around this??
  
  To achieve the visual clarity I guess you're looking for, switch to
  the pcb+gl branch and turn on thin draw polygons.
  
  Alternatively, thin draw polygons in git HEAD might still help you.
  The keyboard short-cut is Ctrl + Shift + P
 
 I do find that Thin Draw Polygons is helpful sometimes.  However I also
 find many times that I would like to be able to show only specific
 layers (not whole layer groups).  For instance, if I want to rip up all
 my ground plane polygons, I would like to be able to show only the
 ground plane layer (which is in the top layer's group) so that I can
 select all to select only the ground plane copper.

How about some middle ground compromise - let it switch the layers off
for the purposes of selection / rendering etc.., but still draw a faded
(or de-saturated) version of their contents to aid not drawing geometry
which would clash with other (hidden) sub-layers in the group.

Best wishes,

-- 
Peter Clifton

Electrical Engineering Division,
Engineering Department,
University of Cambridge,
9, JJ Thomson Avenue,
Cambridge
CB3 0FA

Tel: +44 (0)7729 980173 - (No signal in the lab!)
Tel: +44 (0)1223 748328 - (Shared lab phone, ask for me)


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Re: gEDA-user: Hiding individual layers of a layer-group

2011-05-11 Thread Geoff Swan
   I was already running pcb+gl - so that was a very fast fix. I didn't
   know about thin-draw :P
   I still think it would be handy to be able to turn of individual layers
   regardless of whether they are grouped though...

   On Thu, May 12, 2011 at 3:45 AM, Peter Clifton [1]pc...@cam.ac.uk
   wrote:

   On Wed, 2011-05-11 at 07:16 -0700, Colin D Bennett wrote:
On Wed, 11 May 2011 13:12:55 +0100
Peter Clifton [2]pc...@cam.ac.uk wrote:
   
 On Wed, 2011-05-11 at 21:41 +1000, Geoff Swan wrote:
  Hi folks, I've just started using separate layers so for my
  polygons so that I can hide them when necessary. This works fine
  until I group them with the appropriate layer. Ie - top and
   ground
  in a layer grouping - with ground being the layer I am putting
  polygons on. When I go to hide the ground layer - the top layer
   is
  also hidden. If I put them in separate groups this doesn't happen
   -
  however it seems that if I put them in separate groups the DRC
  breaks... is there any way around this??

 To achieve the visual clarity I guess you're looking for, switch to
 the pcb+gl branch and turn on thin draw polygons.

 Alternatively, thin draw polygons in git HEAD might still help
   you.
 The keyboard short-cut is Ctrl + Shift + P
   
I do find that Thin Draw Polygons is helpful sometimes.  However I
   also
find many times that I would like to be able to show only specific
layers (not whole layer groups).  For instance, if I want to rip up
   all
my ground plane polygons, I would like to be able to show only the
ground plane layer (which is in the top layer's group) so that I
   can
select all to select only the ground plane copper.

 How about some middle ground compromise - let it switch the layers
 off
 for the purposes of selection / rendering etc.., but still draw a
 faded
 (or de-saturated) version of their contents to aid not drawing
 geometry
 which would clash with other (hidden) sub-layers in the group.
 Best wishes,

   --
   Peter Clifton
   Electrical Engineering Division,
   Engineering Department,
   University of Cambridge,
   9, JJ Thomson Avenue,
   Cambridge
   CB3 0FA
   Tel: [3]+44 (0)7729 980173 - (No signal in the lab!)
   Tel: [4]+44 (0)1223 748328 - (Shared lab phone, ask for me)

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References

   1. mailto:pc...@cam.ac.uk
   2. mailto:pc...@cam.ac.uk
   3. tel:%2B44%20%280%297729%20980173
   4. tel:%2B44%20%280%291223%20748328
   5. mailto:geda-user@moria.seul.org
   6. http://www.seul.org/cgi-bin/mailman/listinfo/geda-user


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