Re: [Qgis-user] Black border in raster files

2012-08-12 Thread Giovanni Manghi
Dear Manuel,

in the raster properties choose stretch and clip to min/max (in the
contrast enhancement option) to remove the black frame. Unfortunately
it will work only for the grayscale color ramp, as with the others you
will hit a known issue that affects the transparency of nulls values (or
values defined as null). Hopefully this issue will be fixed in the dev
version of QGIS as the rasters are being overhauled.

cheers


-- Giovanni --

On Sat, 2012-08-11 at 10:21 -0600, Manuel Spínola wrote:
 Sure Giovanni.
 
 
 Best,
 
 
 Manuel
 
 2012/8/11 Giovanni Manghi giovanni.man...@faunalia.pt
 
 
  Any other suggestion?
 
 
 
 can you share the data?
 
 
 
 
 
 
 -- 
 Manuel Spínola, Ph.D. 
 Instituto Internacional en Conservación y Manejo de Vida Silvestre 
 Universidad Nacional 
 Apartado 1350-3000 
 Heredia 
 COSTA RICA 
 mspin...@una.ac.cr 
 mspinol...@gmail.com 
 Teléfono: (506) 2277-3598 
 Fax: (506) 2237-7036 
 Personal website: Lobito de río 
 Institutional website: ICOMVIS
 


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Re: [Qgis-user] Black border in raster files

2012-08-12 Thread Manuel Spínola
Thank you very much Giovanni.  As you said, that works only with grayscale.
 I hope in the future is also implemented for colormap.

Best,

Manuel

2012/8/12 Giovanni Manghi giovanni.man...@faunalia.pt

 Dear Manuel,

 in the raster properties choose stretch and clip to min/max (in the
 contrast enhancement option) to remove the black frame. Unfortunately
 it will work only for the grayscale color ramp, as with the others you
 will hit a known issue that affects the transparency of nulls values (or
 values defined as null). Hopefully this issue will be fixed in the dev
 version of QGIS as the rasters are being overhauled.

 cheers


 -- Giovanni --

 On Sat, 2012-08-11 at 10:21 -0600, Manuel Spínola wrote:
  Sure Giovanni.
 
 
  Best,
 
 
  Manuel
 
  2012/8/11 Giovanni Manghi giovanni.man...@faunalia.pt
 
  
   Any other suggestion?
  
 
 
  can you share the data?
 
 
 
 
 
 
  --
  Manuel Spínola, Ph.D.
  Instituto Internacional en Conservación y Manejo de Vida Silvestre
  Universidad Nacional
  Apartado 1350-3000
  Heredia
  COSTA RICA
  mspin...@una.ac.cr
  mspinol...@gmail.com
  Teléfono: (506) 2277-3598
  Fax: (506) 2237-7036
  Personal website: Lobito de río
  Institutional website: ICOMVIS
 





-- 
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspin...@una.ac.cr
mspinol...@gmail.com
Teléfono: (506) 2277-3598
Fax: (506) 2237-7036
Personal website: Lobito de río https://sites.google.com/site/lobitoderio/
Institutional website: ICOMVIS http://www.icomvis.una.ac.cr/
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Re: [Qgis-user] Black border in raster files

2012-08-12 Thread Giovanni Manghi
On Sun, 2012-08-12 at 08:56 -0600, Manuel Spínola wrote:
 Thank you very much Giovanni.  As you said, that works only with
 grayscale.  I hope in the future is also implemented for colormap.

it is not a feature, is a bug, so I hope will be solved asap because is
very annoying.

cheers

-- Giovanni --


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Re: [Qgis-user] Black border in raster files

2012-08-11 Thread Manuel Spínola
Thank you very much André.

Yes, I am working with one color band (a raster exported from R), but I
cannot solve the problem.  The grey is automatically setted to 100
transparency, but that doesn't take the black frame away.

Any other suggestion?

Best,

Manuel

2012/8/10 Andre Joost andre+jo...@nurfuerspam.de

 Am 10.08.2012 17:45, schrieb Manuel Spínola:

  Sorry André, I am trying but I don't understand.  Where is the RBG in the
 Transparency tab.  I am working with Colormap.


 One-Color-Band I assume, like SRTM? Then you have to set grey:0 to 100%
 Transparency. But I haven't tested that.

 I was testing on three-band-colored Ratser, like normal colored maps
 have.

 Greetings,

 André Joost

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-- 
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspin...@una.ac.cr
mspinol...@gmail.com
Teléfono: (506) 2277-3598
Fax: (506) 2237-7036
Personal website: Lobito de río https://sites.google.com/site/lobitoderio/
Institutional website: ICOMVIS http://www.icomvis.una.ac.cr/
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Re: [Qgis-user] Black border in raster files

2012-08-11 Thread Giovanni Manghi

 
 Any other suggestion?
 


can you share the data?


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Re: [Qgis-user] Black border in raster files

2012-08-10 Thread Andre Joost

Am 10.08.2012 17:03, schrieb Manuel Spínola:

Dear list members,

When working with raster files, sometimes there is a black border with no
data around the map.  How can I handle this in QGIS? I mean, delete it or
set it in a different color.


In Layer Properties, tab Transparency, you can set the transparency to 
RBG: 0-0-0, which makes the black border transparent. The black border 
comes when you georeference a map to another CRS than the original format.


HTH,
André Joost


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Re: [Qgis-user] Black border in raster files

2012-08-10 Thread Manuel Spínola
Sorry André, I am trying but I don't understand.  Where is the RBG in the
Transparency tab.  I am working with Colormap.

Best,

Manuel

2012/8/10 Andre Joost andre+jo...@nurfuerspam.de

 Am 10.08.2012 17:03, schrieb Manuel Spínola:

  Dear list members,

 When working with raster files, sometimes there is a black border with no
 data around the map.  How can I handle this in QGIS? I mean, delete it or
 set it in a different color.


 In Layer Properties, tab Transparency, you can set the transparency to
 RBG: 0-0-0, which makes the black border transparent. The black border
 comes when you georeference a map to another CRS than the original format.

 HTH,
 André Joost


 __**_
 Qgis-user mailing list
 Qgis-user@lists.osgeo.org
 http://lists.osgeo.org/**mailman/listinfo/qgis-userhttp://lists.osgeo.org/mailman/listinfo/qgis-user




-- 
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspin...@una.ac.cr
mspinol...@gmail.com
Teléfono: (506) 2277-3598
Fax: (506) 2237-7036
Personal website: Lobito de río https://sites.google.com/site/lobitoderio/
Institutional website: ICOMVIS http://www.icomvis.una.ac.cr/
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Re: [Qgis-user] Black border in raster files

2012-08-10 Thread Andre Joost

Am 10.08.2012 17:45, schrieb Manuel Spínola:

Sorry André, I am trying but I don't understand.  Where is the RBG in the
Transparency tab.  I am working with Colormap.



One-Color-Band I assume, like SRTM? Then you have to set grey:0 to 100% 
Transparency. But I haven't tested that.


I was testing on three-band-colored Ratser, like normal colored maps have.

Greetings,
André Joost

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