Hello,
I am currently trying to serve DTED (level 0) files through GeoServer. The
point is i do not have one or two files to provide but 25,000+.
the directory structure is the default one for DTED files, which means:
- root
- eXXX (000 -> 179)
- n05.dt0
- ...
- s90.dt0
- wXXX (001 -> 180)
- n05.dt0
- ...
- s90.dt0
Yes, it is the whole world.
Here what i have done to try to serve them with WMS:
1. Of course i installed GDAL supports for GeoServer without problems.
2. Tried ImageMosaic from root directory and obviously the plugin crashed
because of too many files to handle.
3. Tried to merge all dt0 files into one big tiff file => not easy to
manipulate with WMS (1.7 Go) and it takes long time to create it.
4. Tried to merge each subdirectory (e000.tif, e001.tif, ...) in order to
use ImageMosaic in a better way.
Gdalwarp without reprojection gives me black border. It is a little bit
expected because each tile have its own origin location and each tile have
static size (121x121 block). Then i tried to warp again but with Google
Mercator reprojection, in QGis all seems perfect but when i use openlayers
from GeoServer, i got a even bigger black border.
i already read this post :
http://osgeo-org.1560.x6.nabble.com/Geoserver-DTED-store-td3795061.html
But did not solve my problems ...
I hope somemone have a little bit time for me, because it's been a while
since i'm stuck here 
--
View this message in context: http://osgeo-org.1560.x6.nabble.com/ImageMosaic-and-DTED-tp5049551.html
Sent from the GeoServer - User mailing list archive at Nabble.com.
On Thu, Apr 25, 2013 at 10:13 AM, TomLec <thomas.lechauve@anonymised.com> wrote:
Hello,
I am currently trying to serve DTED (level 0) files through GeoServer. The
point is i do not have one or two files to provide but 25,000+.
Way too many files.
3. Tried to merge all dt0 files into one big tiff file => not easy to
manipulate with WMS (1.7 Go) and it takes long time to create it.
This is actually the way to go, but you have to inner tile it, and add
overviews
(and you need a recent version of GeoServer to read the resulting bigtiff).
See here for hints:
http://demo.geo-solutions.it/share/foss4g2011/gs_steroids_sgiannec_foss4g2011.pdf
4. Tried to merge each subdirectory (e000.tif, e001.tif, ...) in order to
use ImageMosaic in a better way.
Gdalwarp without reprojection gives me black border. It is a little bit
expected because each tile have its own origin location and each tile have
static size (121x121 block). Then i tried to warp again but with Google
Mercator reprojection, in QGis all seems perfect but when i use openlayers
from GeoServer, i got a even bigger black border.
About the black border, I believe only the current GeoServer trunk (what
will become
2.4.0 in Septembre/October) can reproject
raster with NODATA without causing black borders, but I may be wrong.
You might want to try out a nightly build from here:
http://gridlock.opengeo.org/geoserver/master/
Cheers
Andrea
--
GeoServer training in Milan, 6th & 7th June 2013! Visit
http://geoserver.geo-solutions.it for more information.
Ing. Andrea Aime
@geowolf
Technical Lead
GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549
http://www.geo-solutions.it
http://twitter.com/geosolutions_it
-------------------------------------------------------
Hi,
Thanks a lot for your advices, even if it took me +40hours to merge all
files, it worked.
Cheers
--
View this message in context: http://osgeo-org.1560.x6.nabble.com/ImageMosaic-and-DTED-tp5049551p5051519.html
Sent from the GeoServer - User mailing list archive at Nabble.com.
Hi Thomas,
thanks for the update.
Regards,
Simone Giannecchini
GeoServer training in Milan, 6th & 7th June 2013! Visit
http://geoserver.geo-solutions.it for more information.
Ing. Simone Giannecchini
@simogeo
Founder/Director
GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 333 8128928
http://www.geo-solutions.it
http://twitter.com/geosolutions_it
-------------------------------------------------------
On Mon, May 6, 2013 at 11:14 AM, Thomas Lechauve
<thomas.lechauve@anonymised.com> wrote:
Hi,
Thanks a lot for your advices, even if it took me +40hours to merge all
files, it worked.
Cheers
--
View this message in context: http://osgeo-org.1560.x6.nabble.com/ImageMosaic-and-DTED-tp5049551p5051519.html
Sent from the GeoServer - User mailing list archive at Nabble.com.
------------------------------------------------------------------------------
Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET
Get 100% visibility into your production application - at no cost.
Code-level diagnostics for performance bottlenecks with <2% overhead
Download for free and get started troubleshooting in minutes.
http://p.sf.net/sfu/appdyn_d2d_ap1
_______________________________________________
Geoserver-users mailing list
Geoserver-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-users