[Geoserver-users] Adding a topo layer

GeoServer GeoServer User
1

Hi,

I have been asked to add a topo layer to our GeoServer/OpenLayers application. I have found a number of global topographical coverages. The two that I am considering right now are GTOPO30 and ETOPO1. Does anyone have any kind words of advice as to what coverage I should use? (I hope it's OK to ask this on this list).

Secondly, these datasets are distributed as tiles. I have tried loading a few of the GTOPO30 tiles into GeoServer, which works perfectly (thanks, GeoServer team!) What is the best way to combine these tiles into a single OpenLayers layer?

Thanks!

Greg

--
| E R G O N O S I S
| Greg Ederer
| Lead Developer
| greg@anonymised.com
| 360.774.6848
|

2

Hi Greg,

Greg Ederer wrote:

Hi,

I have been asked to add a topo layer to our GeoServer/OpenLayers application. I have found a number of global topographical coverages. The two that I am considering right now are GTOPO30 and ETOPO1. Does anyone have any kind words of advice as to what coverage I should use? (I hope it's OK to ask this on this list).

I don't know much about the technical benefits of one format over the other (i am sure others do), but I am pretty sure that GeoServer only supports GTOP30 format.

Secondly, these datasets are distributed as tiles. I have tried loading a few of the GTOPO30 tiles into GeoServer, which works perfectly (thanks, GeoServer team!) What is the best way to combine these tiles into a single OpenLayers layer?

Probably using the mosaicking plugin. The raster experts (Simione et al) should be able to provide guidance in that regard.

Thanks!

Greg

--
Justin Deoliveira
OpenGeo - http://opengeo.org
Enterprise support for open source geospatial.

3

Thanks, Justin. My boss just told me that we're getting a custom topo dataset next week.

Cheers,

Greg

Justin Deoliveira wrote:

Hi Greg,

Greg Ederer wrote:

Hi,

I have been asked to add a topo layer to our GeoServer/OpenLayers application. I have found a number of global topographical coverages. The two that I am considering right now are GTOPO30 and ETOPO1. Does anyone have any kind words of advice as to what coverage I should use? (I hope it's OK to ask this on this list).

I don't know much about the technical benefits of one format over the other (i am sure others do), but I am pretty sure that GeoServer only supports GTOP30 format.

Secondly, these datasets are distributed as tiles. I have tried loading a few of the GTOPO30 tiles into GeoServer, which works perfectly (thanks, GeoServer team!) What is the best way to combine these tiles into a single OpenLayers layer?

Probably using the mosaicking plugin. The raster experts (Simione et al) should be able to provide guidance in that regard.

Thanks!

Greg

--
| E R G O N O S I S
| Greg Ederer
| Lead Developer
| greg@anonymised.com
| 360.774.6848
|

4

Ciao Greg,
I would probably use etopo1 instead of gtopo30.

As of putting this kind of tiles together, I guess that the
imagemosaic is you friend in this case. Honestly I have never tried to
use it that way, hence I am not sure it would work out the box since
gtopo is a raw image format with other information stored in ancillary
files and that's not really what the imagemosaic was originally built
for. Anyway, this could work via the imageio-ext gdal plugins.
Baseline is that I would need to test it a little bit.

Of course converting to geotiff and then mosaicking is always an option.

Simone.
-------------------------------------------------------
Ing. Simone Giannecchini
GeoSolutions S.A.S.
Owner - Software Engineer
Via Carignoni 51
55041 Camaiore (LU)
Italy

phone: +39 0584983027
fax: +39 0584983027
mob: +39 333 8128928

http://www.geo-solutions.it
http://simboss.blogspot.com/
http://www.linkedin.com/in/simonegiannecchini

-------------------------------------------------------

On Mon, Dec 15, 2008 at 7:40 PM, Greg Ederer <greg@anonymised.com> wrote:

Hi,

I have been asked to add a topo layer to our GeoServer/OpenLayers
application. I have found a number of global topographical coverages.
The two that I am considering right now are GTOPO30 and ETOPO1. Does
anyone have any kind words of advice as to what coverage I should use?
(I hope it's OK to ask this on this list).

Secondly, these datasets are distributed as tiles. I have tried loading
a few of the GTOPO30 tiles into GeoServer, which works perfectly
(thanks, GeoServer team!) What is the best way to combine these tiles
into a single OpenLayers layer?

Thanks!

Greg

--
| E R G O N O S I S
| Greg Ederer
| Lead Developer
| greg@anonymised.com
| 360.774.6848
|

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5

Thanks, Simone!

Greg

Simone Giannecchini wrote:

Ciao Greg,
I would probably use etopo1 instead of gtopo30.

As of putting this kind of tiles together, I guess that the
imagemosaic is you friend in this case. Honestly I have never tried to
use it that way, hence I am not sure it would work out the box since
gtopo is a raw image format with other information stored in ancillary
files and that's not really what the imagemosaic was originally built
for. Anyway, this could work via the imageio-ext gdal plugins.
Baseline is that I would need to test it a little bit.

Of course converting to geotiff and then mosaicking is always an option.

Simone.
-------------------------------------------------------
Ing. Simone Giannecchini
GeoSolutions S.A.S.
Owner - Software Engineer
Via Carignoni 51
55041 Camaiore (LU)
Italy

phone: +39 0584983027
fax: +39 0584983027
mob: +39 333 8128928

http://www.geo-solutions.it
http://simboss.blogspot.com/
http://www.linkedin.com/in/simonegiannecchini

-------------------------------------------------------

On Mon, Dec 15, 2008 at 7:40 PM, Greg Ederer <greg@anonymised.com> wrote:
  

Hi,

I have been asked to add a topo layer to our GeoServer/OpenLayers
application. I have found a number of global topographical coverages.
The two that I am considering right now are GTOPO30 and ETOPO1. Does
anyone have any kind words of advice as to what coverage I should use?
(I hope it's OK to ask this on this list).

Secondly, these datasets are distributed as tiles. I have tried loading
a few of the GTOPO30 tiles into GeoServer, which works perfectly
(thanks, GeoServer team!) What is the best way to combine these tiles
into a single OpenLayers layer?

Thanks!

Greg

--
| E R G O N O S I S
| Greg Ederer
| Lead Developer
| greg@anonymised.com
| 360.774.6848
|

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--
| E R G O N O S I S
| Greg Ederer
| Lead Developer
| greg@anonymised.com
| 360.774.6848
|