Re: [Geoserver-users] Question about GeoTiffs

2012-10-11 Thread llagosz
Hi Andrea

You posted that:
"- GeoServer is unable to read GeoTiffs that is georeferenced by
  a custom CRS (not an official EPSG code)"

on Geoserver blog
http://blog.geoserver.org/2012/09/21/geoserver-2-2-released/ is written 
that now: 
"Better support for un-referenced data with the new EPSG:40400 code that
identifies a coordinate system made up of a generic 2D Cartesian plane"

and what if I have Geotiffs based on some local projection for one of
Polands cities (I don't have WKT or PRJ for this projection) and I want to
get that geotiffs serve by Geoserver WMS. How to do that ?





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Re: [Geoserver-users] Question about GeoTiffs

2012-06-07 Thread Andrea Aime
On Thu, Jun 7, 2012 at 5:04 PM, sacprasanna  wrote:
> Hi Mr geowolf,
>
> Thanks for your replay and I read your answer to "question about geotiffs".I
> create geotiff image using custom SRS system but that SRS has EPSG code.But
> in arcmap i can't give EPSG code.
>
> If so what is correct method to create geotiff image,Is there any tool?

I'm not familiar with ESRI tools, can't help you there.

> "Both issues could be solved by some coding, the first by being lenient
> and look for the ancilliary files if the georeferencing is not present
> in the tif file, the second by  adding support for parsing a custom
> CRS. "  This is from your answer in above question.
>
> I am new to this sort of thing and I can't understand above thing.Pls give
> me some little bit information

Ah, it just means some developer has to write the code to support
geotiffs with custom crs and/or external georeferencing via
world files and aux files.

The code is going to get written if someone (you for example) does it
and donates
it to the community.
As an alternative, if you don't have development capabilities in house,
you can contract out such development to one of the companies providing
commercial support for GeoServer:
http://geoserver.org/display/GEOS/Commercial+Support

Cheers
Andrea


-- 
Ing. Andrea Aime
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Re: [Geoserver-users] Question about GeoTiffs

2012-06-07 Thread sacprasanna
Hi Mr geowolf,

Thanks for your replay and I read your answer to "question about geotiffs".I
create geotiff image using custom SRS system but that SRS has EPSG code.But
in arcmap i can't give EPSG code.

If so what is correct method to create geotiff image,Is there any tool?

"Both issues could be solved by some coding, the first by being lenient 
and look for the ancilliary files if the georeferencing is not present 
in the tif file, the second by  adding support for parsing a custom 
CRS. "  This is from your answer in above question.
 
I am new to this sort of thing and I can't understand above thing.Pls give
me some little bit information

Thanks 

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Re: [Geoserver-users] Question about GeoTiffs

2012-06-06 Thread Andrea Aime
On Thu, Jun 7, 2012 at 1:41 AM, Garey Mills  wrote:
> Hi -
>
>     I have some .tifs with associated .prj and .tfw loaded into
> Geoserver 2.2-snapshot. If I try downloading one of these layers as a
> GeoTiff, I get a file much, much smaller than the original TIFF. Not
> only that, when I take that file, put it in Geoserver's data dir, and
> attempt to load it as a GeoTiff, I get the error
>
>             Could not list layers for this store, an error occurred
> retrieving them: Argument "value" should not be null
>
>     Is it naive to expect that a layer downloaded as a GeoTiff could be
> loaded into Geoserver as a GeoTiff?

Nope, it's not, but there are two issues:
- ESRI calls "GeoTiff" stuff that is not actually a Geotiff according to the
  standard (http://trac.osgeo.org/geotiff/), typically a world + image file
  (not your case I understand)
- GeoServer is unable to read GeoTiffs that is georeferenced by
  a custom CRS (not an official EPSG code)

Both issues could be solved by some coding, the first by being lenient
and look for the ancilliary files if the georeferencing is not present
in the tif file, the second by  adding support for parsing a custom
CRS.
That said, code does not write itself (at least for the moment!),
contributions welcomed.

To see if your case is the second one can you run gdalinfo and
report back the output?

Cheers
Andrea


-- 
Ing. Andrea Aime
GeoSolutions S.A.S.
Tech lead

Via Poggio alle Viti 1187
55054  Massarosa (LU)
Italy

phone: +39 0584 962313
fax:      +39 0584 962313
mob:    +39 339 8844549

http://www.geo-solutions.it
http://geo-solutions.blogspot.com/
http://www.youtube.com/user/GeoSolutionsIT
http://www.linkedin.com/in/andreaaime
http://twitter.com/geowolf

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[Geoserver-users] Question about GeoTiffs

2012-06-06 Thread Garey Mills
Hi -

 I have some .tifs with associated .prj and .tfw loaded into 
Geoserver 2.2-snapshot. If I try downloading one of these layers as a 
GeoTiff, I get a file much, much smaller than the original TIFF. Not 
only that, when I take that file, put it in Geoserver's data dir, and 
attempt to load it as a GeoTiff, I get the error

 Could not list layers for this store, an error occurred 
retrieving them: Argument "value" should not be null

 Is it naive to expect that a layer downloaded as a GeoTiff could be 
loaded into Geoserver as a GeoTiff?

-- 
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Library Systems Office
UC Berkeley


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