Re: [Geoserver-devel] W3DS Implementation up and running

[Justin D. <jde...@op...>]

Hi Jorge,

First off I have to say, very very impressive! Very exciting stuff and I
think i can speak for everyone when i say we are very happy to see this
work being contributed.

That said, not having proper diffs for the work will certainly make it hard
to review the work. Based on the revision info you included i was able to
generate a diff but didn't analyze it too closely.

I would like to see us work toward making it into an actual community
module. I would start by reviewing our current policies and practices from
the developer guide.

  http://docs.geoserver.org/latest/en/developer/policies/index.html

In particular the geoserver process for extensions and community modules.


http://docs.geoserver.org/latest/en/developer/policies/community-modules.html

Without having looked at the code here are some thoughts about getting this
work integrated into geoserver. First would be at the geoserver level. It
would be good to structure the w3ds module as a community module to start.
The idea is that the community space allows for development of a new
feature without disruption of the main code base. Once the code meets some
requirements such as test coverage, stability, etc... we can look at making
it a supported extension, or adding it as a core service module. All the
requirements for which listed in the community module doc above.

Second would be getting the core changes made to geotools and geoserver in.
These sort of will need to be evaluated on a case by case basis. If you
could describe the changes required that would be a good place to start.
And as mentioned a proper diff would make it much easier.

Finally, while we maintain our sources officially in subversion, many of
the core geoserver/geotools dev have been using github for this type of
major development. We main two github repos that are essentially mirrors of
what is in subversion.

https://github.com/geoserver/geoserver
https://github.com/geotools/geotools

I am not sure how familiar you are with git but i encourage you to look at
forking both of those repos and doing development there (on a branch). I
would be happy to help you getting up to speed with this.

Looking forward to collaborating on this. Very cool stuff!

-Justin

On Wed, Mar 28, 2012 at 10:07 AM, Jorge Gustavo Rocha <jg...@di...>wrote:

> Hi Geoservers,
>
> 1. We have been working on an implementation of a W3DS server on top of
> Geoserver. We used the draft specification 0.4.0. It's only a draft, but
> we think that a working open source implementation can improve the draft
> and it might became a standard. The major motivation for this work is
> the HTML5 support in modern browsers, supporting X3D scenes (using the
> x3dom library). As far as we know, there are no other open source
> implementations of this service. We presented this service last week, in
> the Jornadas SIG Libre, in Girona.
>
> 2. All code was written on top of:
> Build Information
> Version
> 2.2-SNAPSHOT
> Subversion Revision
> 16244
> Build Date
> 28-Mar-2012 12:54
> GeoTools Version
> 8-SNAPSHOT (rev 37918)
>
> 3. Basically, we:
> 3.1 Registered another service (W3DS), implemented the operations
> GetCapabilities, GetScene, GetTile and GetFeatureInfo (not finished).
> 3.2 Updated Geotools to read 3D data from PostGIS
> 3.3 Updated Geotools to support 3D styles
> 3.4 Updates the web interface accordingly (in several places; we needed
> some specific options when publishing another 3D layer, beyond the
> 'data' and 'publish' tabs on the interface)
> 3.5 X3D is now supported as output. We also added a HTML5+X3D to enable
> direct preview on the browser (it's really nice to see the 3D data on
> browsers supporting WebGL)
>
> 4. We have the .war available, and the sources as well, from:
> http://3dwebgis.di.uminho.pt/sources/
> We didn't create diffs from the sources. We just created a tgz file from
> the maven project, to allow people to read it, if necessary.
>
> 5. We also have some videos of the 3D data returned, available at:
> http://3dwebgis.di.uminho.pt/videos/
>
> 6. We have a W3DS server up and running. Several requests[1] are at the
> end of the message, for testing. The result can be seen in WebGL
> compatible browsers (ie Firefox and Chrome). If the scene is not shown,
> try to force with 'Show all'.
> 6.1 Administration access to this server is available (just use the
> default geoserver admin password).
>
> 7. We have some more time and resources to continue this project, and we
> would like to integrate this W3DS service in the GeoServer trunk.
>
> 8. Questions:
> 8.1 Should W3DS be integrated in the truck? Or should it be an extension?
> 8.2 What is the best way to share and integrate the code developed for
> X3D? By opening several tickets?
>
> 9. Now that the service is running, we will start the documentation
> today :-)
>
> Any suggestions are very welcome.
>
> Regards,
>
> Jorge Gustavo Rocha/Nuno Oliveira
>
>
> [1] Demo requests:
>
> DEMO GEOSERVER3D
>
> ###################
> ### Level Lines ###
> ###################
>
> // WMS 2D Visulization
>
>
> http://3dwebgis.di.uminho.pt/geoserver3D/geoserver3D/wms?service=WMS&version=1.1.0&request=GetMap&layers=geoserver3D:level_lines&styles=&bbox=-17.207,32.834,-17.19,32.843&width=623&height=330&srs=EPSG:4326&format=application/openlayers
>
> // W3DS 3D Visualization
>
>
> http://3dwebgis.di.uminho.pt/geoserver3D/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetScene&format=text/html&crs=EPSG:4326&layers=geoserver3D:level_lines&boundingbox=-17.207,32.834,-17.19,32.843
>
> // 3D Style: type of level line
>
>
> http://3dwebgis.di.uminho.pt/geoserver3D/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetScene&format=text/html&crs=EPSG:4326&layers=geoserver3D:level_lines&boundingbox=-17.207,32.834,-17.19,32.843&styles=ll_by_type
>
> ####################
> ### Buildings 3D ###
> ####################
>
> // Simple 3D Buildings
>
>
> http://3dwebgis.di.uminho.pt/cgi-bin/proxy.cgi?url=http://3dwebgis.di.uminho.pt/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetScene&crs=EPSG:4326&format=text/html&layers=buildings_3d&boundingbox=-8.301200,41.437741,-8.294815,41.444161
>
> // 3D Style: type of buildings
>
>
> http://3dwebgis.di.uminho.pt/cgi-bin/proxy.cgi?url=http://3dwebgis.di.uminho.pt/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetScene&crs=EPSG:4326&format=text/html&layers=buildings_3d&boundingbox=-8.301200,41.437741,-8.294815,41.444161&styles=buildings_by_type
>
> // Request EPSG:27492
>
>
> http://3dwebgis.di.uminho.pt/cgi-bin/proxy.cgi?url=http://3dwebgis.di.uminho.pt/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetScene&crs=EPSG:27492&format=text/html&layers=buildings_3d&boundingbox=-13969,196602,-13434,197314&styles=buildings_by_type
>
> ###################
> ### Terrain 3D ####
> ###################
>
> // Simple tile of a tiled terrain
>
>
> http://3dwebgis.di.uminho.pt/cgi-bin/proxy.cgi?url=http://3dwebgis.di.uminho.pt/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetTile&CRS=EPSG:27492&FORMAT=text/html&LAYER=dem_tiled_3d&TILELEVEL=0&TILEROW=5&TILECOL=7
>
> // The same with a WMS texture (Style 3D)
>
>
> http://3dwebgis.di.uminho.pt/cgi-bin/proxy.cgi?url=http://3dwebgis.di.uminho.pt/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetTile&CRS=EPSG:27492&FORMAT=text/html&LAYER=dem_tiled_3d&TILELEVEL=0&TILEROW=5&TILECOL=7&style=dem_texture_igp
>
> // The same with a texture from OSM (Style 3D)
>
>
> http://3dwebgis.di.uminho.pt/cgi-bin/proxy.cgi?url=http://3dwebgis.di.uminho.pt/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetTile&CRS=EPSG:27492&FORMAT=text/html&LAYER=dem_tiled_3d&TILELEVEL=0&TILEROW=5&TILECOL=7&style=dem_texture_osm
>
> // Some tiles with a WMS texture from IGP (Style 3D)
>
>
> http://3dwebgis.di.uminho.pt/cgi-bin/proxy.cgi?url=http://3dwebgis.di.uminho.pt/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetScene&crs=EPSG:27492&format=text/html&layers=dem_3d&boundingbox=-17135.129401,197749.891232,-15187.612882,199067.775334&styles=dem_texture_igp
>
> // Some tiles with a texture from OSM (Style 3D)
>
>
> http://3dwebgis.di.uminho.pt/cgi-bin/proxy.cgi?url=http://3dwebgis.di.uminho.pt/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetScene&crs=EPSG:27492&format=text/html&layers=dem_3d&boundingbox=-17135.129401,197749.891232,-15187.612882,199067.775334&styles=dem_texture_osm
>
> ##################################
> ### Terrain 3D + 3D Buildings ####
> ##################################
>
> // 3D Buildings with a 3D style (textures from a WMS)
>
>
> http://3dwebgis.di.uminho.pt/cgi-bin/proxy.cgi?url=http://3dwebgis.di.uminho.pt/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetScene&crs=EPSG:4326&format=text/html&layers=dem_3d,buildings_3d&boundingbox=-8.339114,41.448015,-8.315843,41.459920&styles=dem_texture_igp,buildings_by_type
>
> // 3D Buildings with a 3D style (textures from a OSM)
>
>
> http://3dwebgis.di.uminho.pt/cgi-bin/proxy.cgi?url=http://3dwebgis.di.uminho.pt/geoserver3D/w3ds?version=0.4&service=w3ds&request=GetScene&crs=EPSG:4326&format=text/html&layers=buildings_3d,dem_3d&boundingbox=-8.301200,41.437741,-8.294815,41.444161&styles=buildings_by_type,dem_texture_osm
>
>
> ************************************************************************************
>
> ************************************************************************************
>
> ************************************************************************************
>
>
>
>
>
>
> --
> Jorge Gustavo Rocha
> Departamento de Informática
> Universidade do Minho
> 4710-057 Braga
> Tel: +351 253604480
> Fax: +351 253604471
> Móvel: +351 910333888
> skype: nabocudnosor
>
>
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-- 
Justin Deoliveira
OpenGeo - http://opengeo.org
Enterprise support for open source geospatial.