OSGeo - User contributions [en]

OSGeo Python Library

2009-10-01T14:56:32Z

Wiki-Timmie: addeed mailing list for Python GIS SIG

== Motivation ==

Several OSGeo software projects support Python. However, a global abstraction layer is lacking which would help to do "OSGeo Python programming". We think of well documented bindings to the various software projects which are handled as plugins (or whatever appropriate).

== Functionality ==

Shared functions may include

* Import/Export of data
* Linking to external data sources
* Reprojection tools
* GIS analysis
* Plotting and printing

== Programming Language ==

* Python
* SWIG
* ...

== Existing code to be recycled ==

* http://fwtools.maptools.org and http://openev.sourceforge.net
* [http://trac.osgeo.org/gdal/wiki/GdalOgrInPython GDAL/OGR Python bindings]
* [http://mapserver.gis.umn.edu/docs/howto/mapscript_python Mapserver Python bindings]
* [http://wiki.qgis.org/qgiswiki/PythonBindings QGIS Python bindings]
* [http://grass.osgeo.org/wiki/GRASS_and_Python GRASS SWIG Python bindings] and [http://download.osgeo.org/grass/grass6_progman/pythonlib.html GRASS Python library]
* [http://gispython.org PCL and PrimaGIS]
* [http://pygps.org/ Python GIS] Working on a pile of GIS programs in Python. Mostly they make maps, but targetting a total replacement of GRASS, so calling it Python GIS.
** Currently in development:
*** [http://pygps.org/#pygps pygps], a Python GPS
*** [http://pygps.org/#mapview mapview], a Python map viewer
*** [http://pygps.org/#LatLongUTMconversion LatLongUTMconversion], a Python library to convert between Lat/Lon and UTM

=== Efforts outside the OSGEO world ===
* [http://www.nabble.com/satellite-imagery-td24979491.html satellite imagery] -- Discussion on Scipy Mailing list
* [http://geodacenter.asu.edu/pysal PySAL: Open Source Library for Spatial Analysis]
** [http://regionalanalysislab.org/index.php/Main/STARS STARS]
** [http://geodacenter.asu.edu/pysal PySpace]
** [http://geodacenter.asu.edu/pyweights PyWeights]
* [http://softwarecarpentry.wordpress.com/2009/08/26/how-important-is-geospatial-data-to-you/ How Important is Geospatial Data to You?] -- Using geodata with Python may be included in future versions of the Software carpentry course

== Architecture ==

Draft concept:

+----------------------------------------------------------------+
| |
| OSGeo Python Library | User API
| |
+---------+------------+-------------+-----------+---------+-----+
| | | | | | |
| File IO | Streams IO | Projections | Analytics | Print | ... | Abstraction Layer
| | | | | | |
+---------+------------+-------------+-----------+---------+-----+
| | | | | |
| GDAL/xxx | PROJ4 | GRASS | QGIS | ... | OSGeo and related projects
| | | |Mapserver| | with Python bindings
| | | | | |
+----------------------+-------------+-----------+---------+-----+

== License ==

It is proposed to license the OSGeo Python Library under ... TBD. Certainly OSI compliant.

== Communication ==

A new mailing list is created: [http://groups.google.com/group/python-gis-sig Unofficial Python GIS SIG]

== Interested people ==

* [[User:Neteler|Markus Neteler]] (proposer)
* [[User:Sholler|Sebastian Holler]]
* [[User:kotzino|Dimitris Kotzinos]]
* [[User:Landa|Martin Landa]]

[[Category: Software Stack]]

OSGeo Python Library

2009-09-01T09:09:50Z

Wiki-Timmie: /* Efforts outside the OSGEO world */ added link to SWC

== Motivation ==

Several OSGeo software projects support Python. However, a global abstraction layer is lacking which would help to do "OSGeo Python programming". We think of well documented bindings to the various software projects which are handled as plugins (or whatever appropriate).

== Functionality ==

Shared functions may include

* Import/Export of data
* Linking to external data sources
* Reprojection tools
* GIS analysis
* Plotting and printing

== Programming Language ==

* Python
* SWIG
* ...

== Existing code to be recycled ==

* http://fwtools.maptools.org and http://openev.sourceforge.net
* [http://trac.osgeo.org/gdal/wiki/GdalOgrInPython GDAL/OGR Python bindings]
* [http://mapserver.gis.umn.edu/docs/howto/mapscript_python Mapserver Python bindings]
* [http://wiki.qgis.org/qgiswiki/PythonBindings QGIS Python bindings]
* [http://grass.osgeo.org/wiki/GRASS_and_Python GRASS SWIG Python bindings] and [http://download.osgeo.org/grass/grass6_progman/pythonlib.html GRASS Python library]
* [http://gispython.org PCL and PrimaGIS]
* [http://pygps.org/ Python GIS] Working on a pile of GIS programs in Python. Mostly they make maps, but targetting a total replacement of GRASS, so calling it Python GIS.
** Currently in development:
*** [http://pygps.org/#pygps pygps], a Python GPS
*** [http://pygps.org/#mapview mapview], a Python map viewer
*** [http://pygps.org/#LatLongUTMconversion LatLongUTMconversion], a Python library to convert between Lat/Lon and UTM

=== Efforts outside the OSGEO world ===
* [http://www.nabble.com/satellite-imagery-td24979491.html satellite imagery] -- Discussion on Scipy Mailing list
* [http://geodacenter.asu.edu/pysal PySAL: Open Source Library for Spatial Analysis]
** [http://regionalanalysislab.org/index.php/Main/STARS STARS]
** [http://geodacenter.asu.edu/pysal PySpace]
** [http://geodacenter.asu.edu/pyweights PyWeights]
* [http://softwarecarpentry.wordpress.com/2009/08/26/how-important-is-geospatial-data-to-you/ How Important is Geospatial Data to You?] -- Using geodata with Python may be included in future versions of the Software carpentry course

== Architecture ==

Draft concept:

+----------------------------------------------------------------+
| |
| OSGeo Python Library | User API
| |
+---------+------------+-------------+-----------+---------+-----+
| | | | | | |
| File IO | Streams IO | Projections | Analytics | Print | ... | Abstraction Layer
| | | | | | |
+---------+------------+-------------+-----------+---------+-----+
| | | | | |
| GDAL/xxx | PROJ4 | GRASS | QGIS | ... | OSGeo and related projects
| | | |Mapserver| | with Python bindings
| | | | | |
+----------------------+-------------+-----------+---------+-----+

== License ==

It is proposed to license the OSGeo Python Library under ... TBD. Certainly OSI compliant.

== Interested people ==

* [[User:Neteler|Markus Neteler]] (proposer)
* [[User:Sholler|Sebastian Holler]]
* [[User:kotzino|Dimitris Kotzinos]]
* [[User:Landa|Martin Landa]]

[[Category: Software Stack]]

OSGeo Python Library

2009-09-01T09:00:16Z

Wiki-Timmie: /* Existing code to be recycled */ added more links

== Motivation ==

Several OSGeo software projects support Python. However, a global abstraction layer is lacking which would help to do "OSGeo Python programming". We think of well documented bindings to the various software projects which are handled as plugins (or whatever appropriate).

== Functionality ==

Shared functions may include

* Import/Export of data
* Linking to external data sources
* Reprojection tools
* GIS analysis
* Plotting and printing

== Programming Language ==

* Python
* SWIG
* ...

== Existing code to be recycled ==

* http://fwtools.maptools.org and http://openev.sourceforge.net
* [http://trac.osgeo.org/gdal/wiki/GdalOgrInPython GDAL/OGR Python bindings]
* [http://mapserver.gis.umn.edu/docs/howto/mapscript_python Mapserver Python bindings]
* [http://wiki.qgis.org/qgiswiki/PythonBindings QGIS Python bindings]
* [http://grass.osgeo.org/wiki/GRASS_and_Python GRASS SWIG Python bindings] and [http://download.osgeo.org/grass/grass6_progman/pythonlib.html GRASS Python library]
* [http://gispython.org PCL and PrimaGIS]
* [http://pygps.org/ Python GIS] Working on a pile of GIS programs in Python. Mostly they make maps, but targetting a total replacement of GRASS, so calling it Python GIS.
** Currently in development:
*** [http://pygps.org/#pygps pygps], a Python GPS
*** [http://pygps.org/#mapview mapview], a Python map viewer
*** [http://pygps.org/#LatLongUTMconversion LatLongUTMconversion], a Python library to convert between Lat/Lon and UTM

=== Efforts outside the OSGEO world ===
* [http://www.nabble.com/satellite-imagery-td24979491.html satellite imagery] -- Discussion on Scipy Mailing list
* [http://geodacenter.asu.edu/pysal PySAL: Open Source Library for Spatial Analysis]
** [http://regionalanalysislab.org/index.php/Main/STARS STARS]
** [http://geodacenter.asu.edu/pysal PySpace]
** [http://geodacenter.asu.edu/pyweights PyWeights]

== Architecture ==

Draft concept:

+----------------------------------------------------------------+
| |
| OSGeo Python Library | User API
| |
+---------+------------+-------------+-----------+---------+-----+
| | | | | | |
| File IO | Streams IO | Projections | Analytics | Print | ... | Abstraction Layer
| | | | | | |
+---------+------------+-------------+-----------+---------+-----+
| | | | | |
| GDAL/xxx | PROJ4 | GRASS | QGIS | ... | OSGeo and related projects
| | | |Mapserver| | with Python bindings
| | | | | |
+----------------------+-------------+-----------+---------+-----+

== License ==

It is proposed to license the OSGeo Python Library under ... TBD. Certainly OSI compliant.

== Interested people ==

* [[User:Neteler|Markus Neteler]] (proposer)
* [[User:Sholler|Sebastian Holler]]
* [[User:kotzino|Dimitris Kotzinos]]
* [[User:Landa|Martin Landa]]

[[Category: Software Stack]]

File:Aggregation.pdf

2009-08-25T08:08:57Z

Wiki-Timmie: Creating Aggregate Rasters for MapServer or GDAL

Creating Aggregate Rasters for MapServer or GDAL

File:Dems.pdf

2009-08-25T08:07:46Z

Wiki-Timmie: Get DEM, DOQ, and SRTM data for any area of interest in the coterminous US

Get DEM, DOQ, and SRTM data for any area of interest in
the coterminous US

File:Wfs.pdf

2009-08-25T08:06:42Z

Wiki-Timmie: Exploring Web Feature Services No fancy client needed, open standards and XML make it easy to explore WFS using Python.

Exploring Web Feature Services
No fancy client needed, open standards and XML make it easy to explore WFS
using Python.

File:Geocode.pdf

2009-08-25T08:04:35Z

Wiki-Timmie: You want to use Python MapScript to geocode addresses and return a DOQ map with the address plotted on it as a point. Geocoding is very popular these days. Users frequently ask questions on the MapServer list how to incorporate geocoding into existing app

You want to use Python MapScript to geocode addresses and return a DOQ
map with the address plotted on it as a point.
Geocoding is very popular these days. Users frequently ask questions on the
MapServer list how to incorporate geocoding into existing applications.
Websites like MapQuest, Yahoo! Maps, and Google Maps have popularized the
concept of using an address as an initial map navigation tool.

File:Geometries.pdf

2009-08-25T08:02:54Z

Wiki-Timmie: Geometry Operations: OGR and GEOS The GEOS library http://geos.refractions.net provides the spatial predicates originally used in PostGIS, now OGR, and soon MapServer. In this exercise we'll explore unions, intersections, differences, buffers, and work ou

Geometry Operations: OGR and GEOS
The GEOS library
http://geos.refractions.net
provides the spatial predicates originally used in PostGIS, now OGR, and soon
MapServer. In this exercise we'll explore unions, intersections, differences,
buffers, and work our way up to the task of creating a buffered union of many
features from a shapefile.

File:Intropython.pdf

2009-08-25T08:00:45Z

Wiki-Timmie: Introduction to Python You need a quickie refresher on Python to get started.

Introduction to Python
You need a quickie refresher on Python to get started.

OSGeo Cartographic Engine

2008-04-09T22:36:29Z

Wiki-Timmie: /* Existing code to be recycled */ added Mapnik. don't know how it can be used but seems to produce nice results

== Motivation ==

There are plans for new/rewritten cartographic tools (map composer) for QGIS, as well as for GRASS. We suggest to develop a joint library for the various functions which could be shared across GRASS, QGIS and other projects with bindings to Qt, Python etc. The GUI part will be done within the individual software projects, while this project focuses on standard libraries or command line utilities.

== Functionality ==

Shared functions may include

* class breaks (various algorithms)
* histogram analysis
* color ramps
* RGB and possibly CYMK support (aka color transformations) etc.
* Algorithms for intelligent label placement -- for example, collision management based on rotated extent rectangles. Also, collision management against line and polygon and point features. Provision for prioritized set of text placement rules, first one to prevent collision wins.
* Symbology management
* map surround
* legend
* cartographic templates (ie. predefined map styles)

== Programming Language ==

* C? C++?

Perhaps we could implement the core in C++, but provide a high level C API for applications and environments wanting to drive the library. C++ is a strong implementation language, but presenting a C API to the outside world reduces complexity calling from other languages or compiler versions and reduces "interface fragility".

* Python bindings?

There has been talk on the [http://gmt.soest.hawaii.edu/ GMT] mailing list about Python bindings to the core C API. Since GMT already has a wealth of routines for plotting directly to PS|EPS format files, this route may give developers a great head-start. There has been [http://casoilresource.lawr.ucdavis.edu/drupal/node/561 some work] on the integration of GRASS and GMT in the past, with [http://grass.gdf-hannover.de/wiki/GRASS_AddOns several user-submitted modules].

== Output Formats ==

What output formats do we want to target. I think at the core this question comes down to whether we want to render everything to a raster format or whether we wish to preserve linework, and text in non-raster form. That is, whether output output is a raster format, or a raster+vector+text format like postscript/pdf.

If a cartographic product is the objective, I think selection of an output format like PDF makes a lot of sense, but it does make interactive composition more complicated and it is possible we have limited pdf/postscript development expertise in our developer community (the GMT developers may be of help here...).

What about the possibility of exporting SVG and using Inkscape for cartographic styling and design? Inkscape is written in C++ and already has a wealth of vector graphics functionality. You could also consider using Scribus for map layout. I believe Scribus is also written in C++. Why implement the great functionality that already exists in open source programs?

Coming from the Web Mapping angle it will be interesting to be able to acquire OGC WMS maps with a pixel sizes < 0.28 mm (which is the current standard of ~ 72 or 90 dpi). This option has been suggested as a change request and is currently being discussed. It will allow to compose high resolution print maps also using OGC WMS.

== Existing code to be recycled ==

There will be code in GRASS, QGIS, the Python Cartographic Library (http://zcologia.org/cartography) and other sources which could be integrated (check license compatibility). Please indicate precisely where to find the source code, license, programming language:

* Label placement code:
** Mapserver [http://trac.osgeo.org/mapserver/browser/trunk/mapserver/maplabel.c labeling code] (MapServer License, C language)
** GRASS [http://trac.osgeo.org/grass/browser/grass/trunk/vector/v.label.sa v.label.sa] (GPL, C language)
* Color management:
** MapGuide, [http://trac.osgeo.org/mapguide/browser/trunk/MgDev/Server/src/Services/Feature/FeatureNumericFunctions.cpp CalculateDistribution] and [http://trac.osgeo.org/mapguide/browser/trunk/MgDev/Common/PlatformBase/Data/Color.cpp Color] (LGPL.C++)
** OpenJump ?
* Stylization
** ...
* Class breaks:
** GRASS [http://trac.osgeo.org/grass/browser/grass/trunk/lib/arraystats different algorithms for class breaks] (GPL, C)
* Output:
** Postscript/PDF output:
*** GRASS [http://trac.osgeo.org/grass/browser/grass/trunk/ps/ps.map ps.map] (Postscript output) and [http://trac.osgeo.org/grass/browser/grass/trunk/lib/psdriver PS driver] (GPL, C)
*** [http://sourceforge.net/projects/geofunctions GeoFunctions]: Geographic XML to PDF. Not sure what specific code, but the project leaders might have some insight.
** PNG output:
*** GRASS [http://trac.osgeo.org/grass/browser/grass/trunk/lib/pngdriver PNG driver] (GPL, C)
*** See AGG below
** CAIRO output
*** GRASS [http://trac.osgeo.org/grass/browser/grass/trunk/lib/cairodriver CAIRO driver] (GPL, C)
*** [http://cairographics.org/ Cairo Graphics Library] (LGPL or MPL)
** [Mapnik http://mapnik.org/] is a Free Toolkit for developing mapping applications.

== End User Needs ==
* Print to small format medium (eg 8.5in x 11in, 11in x 14in) and large format (eg 34 x 44in)
* Interactive layout
* High quality printing
* Storage of cartographic symbolizing
* symbols library
* Seprate cartographic and geographic representation (eg changes to carto does not affect geo).
* Generalization on-the-fly, based on current scale.
* Rules based cartography stored in RDBMS (eg series 400 highways are blue with double lines)
* Multiple export formats
** Geotiff
** PNG
** PDF / GeoPDF
** Postscript (need for directly sending files to printers)
** SVG
* Layout Functionality
* Text-based configuration file that applications can output to or humans can manually hack/script
* Common, interoperable data file input options

==Layout Functionality==
===Design Modeling===
Issues of layout will always be important in creating the final cartographic product. Layout templating such as that used in Natural Resources Canada's (NRCAN) Cartographic Design Specifications (http://ess.nrcan.gc.ca/pubs/carto/downloads/design_specs.pdf#page=13).

Perhaps we can learn from the desktop publishing world from the likes of the Scribus project (http://www.scribus.net/). Maybe being able to export a certain portion to scribus to handle some the major layout hurdles. A link between the cartographic library and scribus could allow for auto generation of some layout features and text such as changing declination, Projection info, and others.

=== XML and PDF===
OSGEO might be able to get behind the [http://sourceforge.net/projects/geofunctions Geo Functions] project. "Geo Functions is an open-source library of XSLT-2 / XQuery functions, templates, stylesheets and classes devoted to the processing of geographic data in XML." I understand that the original purpose of the project is to produce PDF maps from XML based data.

==Potential Components==
Breaking the end goal into some components will help to recognise which area(s) there is greatest need. There seems to be at least four primary components to the proposal.

=== Style & Layout Configuration Standards ===
* Specifications for styling of features and layout of a map composition
* Could re-use existing approaches where applicable (e.g. SLD, WMC)
* Specifications to be used in map definition/configuration files

=== Graphical Style & Layout Editor ===
* To create styles interactively
* To define map layout
* Could be stand-alone
* Could be adopted as part of another application
* Saves a style/layout definition document according to above standards

=== Graphical Map Composition Editor ===
* Implemented by existing applications (e.g. GRASS, QGIS, etc.)
* Sets up pointers to data layers
* Assigns styles definitions to the layers
* Applies layout definition to maps
* Outputs a map composition configuration file

=== Rendering Engine ===
* Stand-alone application (no GUI)
* Reads standard map composition configuration file
* Reads and applies the required style/layout definition documents
* Outputs final graphics to specific files

=== Libraries ===
* Sets of libraries could be created to implement parts of the above sections
* Add more here...

== Technologies ==

* AGG (sophisticated rendering of vector/text graphics to raster format - used by MapServer, MapGuide, Mapnik).
* Freetype - text management and rendering library
* [http://cairographics.org/ Cairo] graphics library - vector, text and raster input, various output including Postscript

== License ==

It is proposed to license the OSGeo Cartographic Library under LGPL. The license needs to be GPL compliant.

== Interested people ==

* [[User:Neteler|Markus Neteler]] (proposer)
* Horst Düster
* [[User:Landa|Martin Landa]]
* [[User:MarcoHugentobler|Marco Hugentobler]]
* Frank Warmerdam
* [[User:Adiez|Agustin Diez]]
* [[User:mlennert|Moritz Lennert]]
* [[User:Dsampson | Dave Sampson]]: End User, Search and Rescue Maps,
* [http://casoilresource.lawr.ucdavis.edu/drupal/node/38 Dylan Beaudette]: Soil Science Researcher, OSGeo evangelist
* [[User:Tmitchell|Tyler Mitchell]]
* [[User:reholl|Robert Hollingsworth]]
* Wolf Bergenheim
* [[User:HamishBowman|Hamish Bowman]]: ps.map developer & evangelist
* [[User:GAruta|Giuseppe Aruta]]: Geologist
* [[User:Roy|Roy Braam]]: Software Engineer
[[Category: Software Stack]]

OSGeo Python Library

2008-04-07T16:23:35Z

Wiki-Timmie: /* added 1 more link to Python GIS */

== Motivation ==

Several OSGeo software projects support Python. However, a global abstraction layer is lacking which would help to do "OSGeo Python programming". We think of well documented bindings to the various software projects which are handled as plugins (or whatever appropriate).

== Functionality ==

Shared functions may include

* Import/Export of data
* Linking to external data sources
* Reprojection tools
* GIS analysis
* Plotting and printing

== Programming Language ==

* Python
* SWIG
* ...

== Existing code to be recycled ==

* http://fwtools.maptools.org and http://openev.sourceforge.net
* [http://trac.osgeo.org/gdal/wiki/GdalOgrInPython GDAL/OGR Python bindings]
* [http://mapserver.gis.umn.edu/docs/howto/mapscript_python Mapserver Python bindings]
* [http://wiki.qgis.org/qgiswiki/PythonBindings QGIS Python bindings]
* [http://grass.gdf-hannover.de/wiki/GRASS_and_Python GRASS SWIG Python bindings]
* [http://gispython.org PCL and PrimaGIS]
* [http://pygps.org/ Python GIS] Working on a pile of GIS programs in Python. Mostly they make maps, but targetting a total replacement of GRASS, so calling it Python GIS.
** Currently in development:
*** [http://pygps.org/#pygps pygps], a Python GPS
*** [http://pygps.org/#mapview mapview], a Python map viewer
*** [http://pygps.org/#LatLongUTMconversion LatLongUTMconversion], a Python library to convert between Lat/Lon and UTM
* ...

== Architecture ==

Draft concept:

+----------------------------------------------------------------+
| |
| OSGeo Python Library | User API
| |
+---------+------------+-------------+-----------+---------+-----+
| | | | | | |
| File IO | Streams IO | Projections | Analytics | Print | ... | Abstraction Layer
| | | | | | |
+---------+------------+-------------+-----------+---------+-----+
| | | | | |
| GDAL/xxx | PROJ4 | GRASS | QGIS | ... | OSGeo and related projects
| | | |Mapserver| | with Python bindings
| | | | | |
+----------------------+-------------+-----------+---------+-----+

== License ==

It is proposed to license the OSGeo Python Library under ... TBD. Certainly OSI compliant.

== Interested people ==

* [[User:Neteler|Markus Neteler]] (proposer)

[[Category: Software Stack]]

FOSS for GIS video tutorials and screencasts

2007-05-31T09:38:59Z

Wiki-Timmie: /* Where to publish your screencast */ added hosting services for screencasts

This is page is a try to create a central index of all available Video Tutorials and Screencasts about FOSS for GIS.

As creating a central repository is not easy due to licenses, video formats and disk space we are using this page to list all pages hosting interesting videos.

please add you contribute at the bottom of the list respecting the table layout

== Screencasts and Video List==
this part is dedicated to short movies showing technical usage of FOSS GIS applications.
Less than 10 mins each, please.

{| cellspacing="1" border="1" cellpadding="3"
|- bgcolor=#d5d5d5
! title and link
! author
! license
! duration
! format
! description
|-
| [http://openlayers.org/presentations/mappingyourdata/ Mapping your Data]
| Chris Schmidt
| not specified
| 4 min
| flash movie
|
Using QGIS, Mapserver and Openlayers to easily set up a web mapping application.
[http://trac.openlayers.org/wiki/MappingYourData Large description]
|-
| [http://docs.codehaus.org/display/GEOSDOC/Video+Tutorials GeoServer Tutorials]
| Chris Holmes
| not specified
| many videos
| flash movie
| List of all official GeoServer tutorials
|-
| [http://www-pool.math.tu-berlin.de/~soeren/grass/modules/ GRASS 6 Voxel tutorials]
| Soeren Gebbert
| not specified
| many videos
| flash movie
| Using GRASS 6 to create 3D flow simulations etc.
|-
| [http://www.reprojected.com/geoblog/how-tos/video/ FOSS GIS tutorials]
| Aaron Racicot
| CC
| many videos
| flash movie
| Tutorials from www.reprojected.com. Examples include building a new Linux GIS box and building QGIS using Python bindings...
|-
|?
|?
|?
|?
|?
|?
|}

== Presentations and long Speaches==

Long public presentations of FOSS GIS softwares
{| cellspacing="1" border="1" cellpadding="3"
|- bgcolor=#d5d5d5
! title and link
! author
! license
! duration
! format
! description
|-
| [http://video.google.com/videoplay?docid=2952942874211397735&hl=en TikiWiki Map]
| Franck Martin
| not specified
| many videos
| flash movie
| Tutorials on setting up the TikiWiki map environment
|-
| [http://video.google.de/videoplay?docid=-3923618086187138447 Chris Holmes, GeoServer presentation at Google TechTalks]
| Martin Weis
| not specified
| 54 min
| flash movie
|
* Introduction to GeoServer,
* GeoSpatial Open Standards,
* GeoServer and Google Earth,
* Future, towards collaborative data
|-
| [http://video.google.com/videoplay?docid=1253140894465183624&hl=en Mapserver WMS on Google Earth]
| Franck Martin
| not specified
| 11 min
| flash movie
| Another video on using WMS from mapserver with Google Earth.
|-
|?
|?
|?
|?
|?
|?
|}

==How to do your screencast==
please add your suggestions on how you did your screencast.
Please try to use and suggest Free Software.

===Linux===
* [https://wiki.ubuntu.com/MeetingLogs/openweekfeisty/screencast Ubuntu discussion over screencast]
* [https://wiki.ubuntu.com/ScreencastTeam/RecordingScreencasts Ubuntu screencast how to]
* [http://www.unixuser.org/~euske/vnc2swf/ vnc2swf] to record a flash movie ([http://www-pool.math.tu-berlin.de/~soeren/grass/modules/screenshots/vnc2swf_usage.html short vnc2swf usage tutorial])

===Mac===
* [http://crschmidt.net/blog/archives/203/openlayers-screencast/ Chris Schmidt experience on Os X]

===Windows===
* [http://www.menasoft.com/blog/?p=30 Taksi - Desktop Screenshot, Video Capture/Recorder] - worked well for capturing OpenGL output (I used it to record from [http://vterrain.org/Doc/Enviro/overview.html VTerrain's Enviro viewer])

==Where to publish your screencast==

Actually main free video hosting are using a strong dowsampling that does not allow a good video quality to present screencast.

Then you'll need to find your own web hosting or a free one that can host just the video without resampling.

===Hosting Portals===

There are specialized hosting services for tutorials:

* [http://showmedo.com ShowMeDo!]
* [http://www.learn2use.de/index.php Learn2Use] (German)

===Suggestions===
* What about distribution the videos with a bittorrent-style distribution? Maybe OSGeo could provide the infrastructure for this?

FOSS for GIS video tutorials and screencasts

2007-05-23T22:47:15Z

Wiki-Timmie: /* Where to publish your screencast */ use of bittorrent?

Geodata Discovery Working Group

2007-03-27T11:44:36Z

Wiki-Timmie: /* Gazetteer Data */

This is a [[Working Group]] started by the [[Public Geospatial Data Committee]].

''NOTICE'': There are two BOFs on this topic at [[OSGeo_at_FOSS4G2006#BOFs|FOSS4G2006]] on ''Geodata'' and about ''Geodata Discovery and Metadata Models''.

While OSGeo can consider hosting sets of public geodata, (and for the purposes of offering maintained [[Geodata Packaging Working Group|packages]] of high-quality data for education and demonstration, it probably will), we can compile a set of best practises and references to good prior art for building and maintaining collections of data and metadata.

== Focus ==

* Metadata for collections of geographic information.
* Providing best practise and prototypes for geodata search facilities
* Help with providing input into the OSGeo repository/services at http://osgeo.telascience.org/
* Providing 'catalog'/discovery/search services as part of OSGeo activities in promoting access to public domain and open licensed bodies of data.

== Participants ==

* [[User:JoWalsh|Jo Walsh]]
* [[User:SchuylerErle|Schuyler Erle]]
* [[User:bitner|David Bitner]]
* [[User:Pnaciona|Perry Nacionales]]
* [[User:Neteler|Markus Neteler]]
* [[User:Arnulf Christl|Arnulf Christl]]
* [[User:virtualmemorys|Bob Wang]]
* [[User:Ocantan|Oscar Cantán]]
* [[User:Sfkeller|Stefan Keller]]
* [[User:candrsn|Carl Anderson]]
* ''please add yourself''

== Existing (Meta) Search Projects and Related Efforts ==

More on metadata models at [[Geodata_Metadata_Requirements]]

Search services:
* See [[Geodata_Metadata_Requirements#Discovery]]
* (Meta) Data Catalogues / Data Repositories
** [http://www.mapdex.org/search/ Mapdex] is "a global Index of 2,018 servers, serving 37,168 map services, containing over 400,000 GIS Layers, covering more than 4,000,000 columns!"
** [http://www.geotorrent.org/ GeoTorrent] hosts BitTorrents of shapefile/TIFF format data.
** [http://www.fao.org/geonetwork/ GeoNetwork] "Find Interactive Maps, GIS datasets, Satellite Imagery and Related Applications"
** [http://www.dlese.org/libdev/dcs_overview.html DLESE Collection System] offers a metadata repository and editor and supports OAI-PMH as data provider and harvester
** [http://gis.hsr.ch/gmdb/ Geo Meta Data Base (GMDB)] - Metadata repository and editor based on ISO 19115/119 Metadata and Dublin Core with XML export and OAI-PMH data provider support (german only)
** GDI Portals (country specific): [http://www.geodata.gov US], [http://www.gogeo.ac.uk UK], [http://www.geoportal.bund.de D], [http://www.geoland.at/ A], [http://www.geocat.ch CH], [http://geodaten.llv.li/geoshop/public.html LI], [http://www.geoportail.fr/ F], ...
* (Meta) Search engines:
** [http://geometa.info/ geometa.info] - search engine for geospatial services, data and documents combining structured and unstructured data (currently german only)
** [http://www.google.com/search?q=allinurl%3A+getcapabilities Google search] using 'allinurl' parameter

Lists about data sources and services:
* Lists on web services:
** http://www.skylab-mobilesystems.com/ger/wms_serverlist.html simple WMS service URL list
** http://www.refractions.net/white_papers/ogcsurvey/ Automated OGC Survey on the Web (WMF, WFS, ...)
** http://geometa.info/search.jsp?query=type%3Awms WMS search engine
** http://exploreourpla.net/maps/
** http://wms-sites.com/ catalog of WMS sites
** [[Orthophotography]] Annotated list of Orthophotography WMS Services
* Lists on data services:
** http://datagateway.nrcs.usda.gov/ US data servers

== Public Datasets for Possible Mirroring or Distribution ==

=== Gazetteer Data ===
... basically placenames with coordinates ...

* [http://www.geonames.org/ Geonames.org] gazetteer (includes [http://earth-info.nga.mil/gns/html/ NGA GNS Gazetteer])
* [http://prdownloads.sourceforge.net/nasa-exp/BlueMarble-Placenames.zip?download WorldWind Placenames] (markusN can provide PERL to read this)
* [http://lists.burri.to/pipermail/geowanking/2007-March/003772.html Geowanking-List: Toponymic accurracy of Google and Yahoo Maps] => a very good example why releasing this data is useful for public authorities and the society

=== Vector data ===
* VMAP0 - 1:1Mio, very generalised vector data for many features, around 70 [http://www.terragear.org/docs/vmap0/coverage.html layers] (already at telascience) - see also [http://www.mapability.com/info/vmap0_index.html here] for docs
* [http://aprsworld.net/gisdata/world/ World map for APRS], 1:1.1mio
* [http://www.soest.hawaii.edu/wessel/gshhs/gshhs.html GSHHS] - world coastlines, different scales available
* TIGER/Line (USA) - street and addressing data for the US
* RNF (Canada) - street and addressing data for Canada
* [http://www.openstreetmap.org OpenStreetMap] - data available through a [http://wiki.openstreetmap.org/index.php/REST HTTP based XML interface]. They've also been getting requests for shapefile and GML output of their data.
* [http://www.maplibrary.org/stacks/Africa_lite.asp African geodata]

=== Raster data ===
* DEM
** [ftp://e0srp01u.ecs.nasa.gov/srtm/version2 SRTM V2]
** [http://www.ngdc.noaa.gov/mgg/image/2minrelief.html ETOPO2]
** [http://topex.ucsd.edu/WWW_html/srtm30_plus.html TOPEX]: SRTM30 (with GTOPO30 data for high latitudes where SRTM data are not available)
** [http://ekman.csc.noaa.gov/TCM/ NOAA TCM] LIDAR / IfSAR
* Satellite Data
** Landsat ([http://onearth.jpl.nasa.gov/ OnEarth] - [http://telascience.sdsc.edu/tela_data/onearth/ mirror already at telascience])
** [http://earthobservatory.nasa.gov/Newsroom/BlueMarble/ Blue Marble] / [http://www.iac.ethz.ch/staff/stockli/bmng/ Blue Marble Next Generation] (mirror already at telascience)
** ASTER (from GLCF)
** MODIS (from NASA EDC)
** USGS Urban Orthos (URL?)
* Maps derived from Satellite Data
** Nested Imagery Layer (Best of -- resolution -- with seamless zoom through multiple levels)
** [http://glcf.umiacs.umd.edu/data/landcover/ AVHRR Landuse Map] from GLCF
** [http://www.shadedrelief.com/natural/ natural earth]
** [http://dmsp.ngdc.noaa.gov/html/projects/lights.html City lights]
** [http://www.worldwildlife.org/freshwater/hydrosheds.cfm HydroSHEDS] - Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales
** [http://unosat.web.cern.ch/unosat/ UNOSAT imagery] http://unosat.web.cern.ch/unosat/asp/prod_free.asp

== Wishlist for Public Datasets ==

* Orthophotos
** Possible sources:
** http://www.fgdl.org/download/index.html
** http://datagateway.nrcs.usda.gov/

== Search Protocols ==

* GIS specific:
** OGC's CSW 2.0 (work in progress...)
*** [http://www.opengeospatial.org/standards/requests/29 OpenGIS Catalogue Services - ebRIM (ISO/TS 15000-3) profile of CSW]
*** (ISO/OGC's "ISO19115/ISO19119 Application Profile for CSW 2.0")
*** See a comparison between [http://www.gis.hsr.ch/wiki/OAI-PMH CSW and OAI-PMH]
** OGC's WFS (profile) serving (profiled) ISO 19115/19119 metadata format...?
** 'Lean and mean' proposals on project level...
*** [[Simple Catalog Interface]]
* Related search protocols - possibly to be profiled or specialized by geoinformation requirements:
** [http://www.openarchives.org/OAI/openarchivesprotocol.html Open Archives Initiative Protocol for Metadata Harvesting 2.0] (OAI-PMH)
** [http://www.loc.gov/standards/sru/ Search/Retrieve via URL] (SRU/SRW)
** [http://en.wikipedia.org/wiki/OpenSearch OpenSearch] proposal from A9
** [http://lcweb.loc.gov/z3950/agency/document.html Z39.50 ANSI/NISO standard protocol]
** [http://www.ebxml.org/ ebXML]/ebRIM Messaging Service 2.0

== Hosting Plan ==

(placeholder for an initial hosting plan sketch)

== See Also ==

* [[Geodata Packaging Working Group]]
* [[Geodata Licensing Working Group]]
* [[WMS Tile Caching]] proposal
* [[Geodata processing at telascience.org]]

Geodata Discovery Working Group

2007-03-27T11:44:06Z

Wiki-Timmie: /* Gazetteer Data */

This is a [[Working Group]] started by the [[Public Geospatial Data Committee]].

''NOTICE'': There are two BOFs on this topic at [[OSGeo_at_FOSS4G2006#BOFs|FOSS4G2006]] on ''Geodata'' and about ''Geodata Discovery and Metadata Models''.

While OSGeo can consider hosting sets of public geodata, (and for the purposes of offering maintained [[Geodata Packaging Working Group|packages]] of high-quality data for education and demonstration, it probably will), we can compile a set of best practises and references to good prior art for building and maintaining collections of data and metadata.

== Focus ==

* Metadata for collections of geographic information.
* Providing best practise and prototypes for geodata search facilities
* Help with providing input into the OSGeo repository/services at http://osgeo.telascience.org/
* Providing 'catalog'/discovery/search services as part of OSGeo activities in promoting access to public domain and open licensed bodies of data.

== Participants ==

* [[User:JoWalsh|Jo Walsh]]
* [[User:SchuylerErle|Schuyler Erle]]
* [[User:bitner|David Bitner]]
* [[User:Pnaciona|Perry Nacionales]]
* [[User:Neteler|Markus Neteler]]
* [[User:Arnulf Christl|Arnulf Christl]]
* [[User:virtualmemorys|Bob Wang]]
* [[User:Ocantan|Oscar Cantán]]
* [[User:Sfkeller|Stefan Keller]]
* [[User:candrsn|Carl Anderson]]
* ''please add yourself''

== Existing (Meta) Search Projects and Related Efforts ==

More on metadata models at [[Geodata_Metadata_Requirements]]

Search services:
* See [[Geodata_Metadata_Requirements#Discovery]]
* (Meta) Data Catalogues / Data Repositories
** [http://www.mapdex.org/search/ Mapdex] is "a global Index of 2,018 servers, serving 37,168 map services, containing over 400,000 GIS Layers, covering more than 4,000,000 columns!"
** [http://www.geotorrent.org/ GeoTorrent] hosts BitTorrents of shapefile/TIFF format data.
** [http://www.fao.org/geonetwork/ GeoNetwork] "Find Interactive Maps, GIS datasets, Satellite Imagery and Related Applications"
** [http://www.dlese.org/libdev/dcs_overview.html DLESE Collection System] offers a metadata repository and editor and supports OAI-PMH as data provider and harvester
** [http://gis.hsr.ch/gmdb/ Geo Meta Data Base (GMDB)] - Metadata repository and editor based on ISO 19115/119 Metadata and Dublin Core with XML export and OAI-PMH data provider support (german only)
** GDI Portals (country specific): [http://www.geodata.gov US], [http://www.gogeo.ac.uk UK], [http://www.geoportal.bund.de D], [http://www.geoland.at/ A], [http://www.geocat.ch CH], [http://geodaten.llv.li/geoshop/public.html LI], [http://www.geoportail.fr/ F], ...
* (Meta) Search engines:
** [http://geometa.info/ geometa.info] - search engine for geospatial services, data and documents combining structured and unstructured data (currently german only)
** [http://www.google.com/search?q=allinurl%3A+getcapabilities Google search] using 'allinurl' parameter

Lists about data sources and services:
* Lists on web services:
** http://www.skylab-mobilesystems.com/ger/wms_serverlist.html simple WMS service URL list
** http://www.refractions.net/white_papers/ogcsurvey/ Automated OGC Survey on the Web (WMF, WFS, ...)
** http://geometa.info/search.jsp?query=type%3Awms WMS search engine
** http://exploreourpla.net/maps/
** http://wms-sites.com/ catalog of WMS sites
** [[Orthophotography]] Annotated list of Orthophotography WMS Services
* Lists on data services:
** http://datagateway.nrcs.usda.gov/ US data servers

== Public Datasets for Possible Mirroring or Distribution ==

=== Gazetteer Data ===
... basically placenames with coordinates ...

* [http://www.geonames.org/ Geonames.org] gazetteer (includes [http://earth-info.nga.mil/gns/html/ NGA GNS Gazetteer])
* [http://prdownloads.sourceforge.net/nasa-exp/BlueMarble-Placenames.zip?download WorldWind Placenames] (markusN can provide PERL to read this)
* [http://lists.burri.to/pipermail/geowanking/2007-March/003772.html [Geowanking] Toponymic accurracy of Google and Yahoo Maps] => a very good example why releasing this data is useful for public authorities and the society

=== Vector data ===
* VMAP0 - 1:1Mio, very generalised vector data for many features, around 70 [http://www.terragear.org/docs/vmap0/coverage.html layers] (already at telascience) - see also [http://www.mapability.com/info/vmap0_index.html here] for docs
* [http://aprsworld.net/gisdata/world/ World map for APRS], 1:1.1mio
* [http://www.soest.hawaii.edu/wessel/gshhs/gshhs.html GSHHS] - world coastlines, different scales available
* TIGER/Line (USA) - street and addressing data for the US
* RNF (Canada) - street and addressing data for Canada
* [http://www.openstreetmap.org OpenStreetMap] - data available through a [http://wiki.openstreetmap.org/index.php/REST HTTP based XML interface]. They've also been getting requests for shapefile and GML output of their data.
* [http://www.maplibrary.org/stacks/Africa_lite.asp African geodata]

=== Raster data ===
* DEM
** [ftp://e0srp01u.ecs.nasa.gov/srtm/version2 SRTM V2]
** [http://www.ngdc.noaa.gov/mgg/image/2minrelief.html ETOPO2]
** [http://topex.ucsd.edu/WWW_html/srtm30_plus.html TOPEX]: SRTM30 (with GTOPO30 data for high latitudes where SRTM data are not available)
** [http://ekman.csc.noaa.gov/TCM/ NOAA TCM] LIDAR / IfSAR
* Satellite Data
** Landsat ([http://onearth.jpl.nasa.gov/ OnEarth] - [http://telascience.sdsc.edu/tela_data/onearth/ mirror already at telascience])
** [http://earthobservatory.nasa.gov/Newsroom/BlueMarble/ Blue Marble] / [http://www.iac.ethz.ch/staff/stockli/bmng/ Blue Marble Next Generation] (mirror already at telascience)
** ASTER (from GLCF)
** MODIS (from NASA EDC)
** USGS Urban Orthos (URL?)
* Maps derived from Satellite Data
** Nested Imagery Layer (Best of -- resolution -- with seamless zoom through multiple levels)
** [http://glcf.umiacs.umd.edu/data/landcover/ AVHRR Landuse Map] from GLCF
** [http://www.shadedrelief.com/natural/ natural earth]
** [http://dmsp.ngdc.noaa.gov/html/projects/lights.html City lights]
** [http://www.worldwildlife.org/freshwater/hydrosheds.cfm HydroSHEDS] - Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales
** [http://unosat.web.cern.ch/unosat/ UNOSAT imagery] http://unosat.web.cern.ch/unosat/asp/prod_free.asp

== Wishlist for Public Datasets ==

* Orthophotos
** Possible sources:
** http://www.fgdl.org/download/index.html
** http://datagateway.nrcs.usda.gov/

== Search Protocols ==

* GIS specific:
** OGC's CSW 2.0 (work in progress...)
*** [http://www.opengeospatial.org/standards/requests/29 OpenGIS Catalogue Services - ebRIM (ISO/TS 15000-3) profile of CSW]
*** (ISO/OGC's "ISO19115/ISO19119 Application Profile for CSW 2.0")
*** See a comparison between [http://www.gis.hsr.ch/wiki/OAI-PMH CSW and OAI-PMH]
** OGC's WFS (profile) serving (profiled) ISO 19115/19119 metadata format...?
** 'Lean and mean' proposals on project level...
*** [[Simple Catalog Interface]]
* Related search protocols - possibly to be profiled or specialized by geoinformation requirements:
** [http://www.openarchives.org/OAI/openarchivesprotocol.html Open Archives Initiative Protocol for Metadata Harvesting 2.0] (OAI-PMH)
** [http://www.loc.gov/standards/sru/ Search/Retrieve via URL] (SRU/SRW)
** [http://en.wikipedia.org/wiki/OpenSearch OpenSearch] proposal from A9
** [http://lcweb.loc.gov/z3950/agency/document.html Z39.50 ANSI/NISO standard protocol]
** [http://www.ebxml.org/ ebXML]/ebRIM Messaging Service 2.0

== Hosting Plan ==

(placeholder for an initial hosting plan sketch)

== See Also ==

* [[Geodata Packaging Working Group]]
* [[Geodata Licensing Working Group]]
* [[WMS Tile Caching]] proposal
* [[Geodata processing at telascience.org]]

Geodata Discovery Working Group

2007-03-26T12:57:11Z

Wiki-Timmie: /* Existing (Meta) Search Projects and Related Efforts */

This is a [[Working Group]] started by the [[Public Geospatial Data Committee]].

''NOTICE'': There are two BOFs on this topic at [[OSGeo_at_FOSS4G2006#BOFs|FOSS4G2006]] on ''Geodata'' and about ''Geodata Discovery and Metadata Models''.

While OSGeo can consider hosting sets of public geodata, (and for the purposes of offering maintained [[Geodata Packaging Working Group|packages]] of high-quality data for education and demonstration, it probably will), we can compile a set of best practises and references to good prior art for building and maintaining collections of data and metadata.

== Focus ==

* Metadata for collections of geographic information.
* Providing best practise and prototypes for geodata search facilities
* Help with providing input into the OSGeo repository/services at http://osgeo.telascience.org/
* Providing 'catalog'/discovery/search services as part of OSGeo activities in promoting access to public domain and open licensed bodies of data.

== Participants ==

* [[User:JoWalsh|Jo Walsh]]
* [[User:SchuylerErle|Schuyler Erle]]
* [[User:bitner|David Bitner]]
* [[User:Pnaciona|Perry Nacionales]]
* [[User:Neteler|Markus Neteler]]
* [[User:Arnulf Christl|Arnulf Christl]]
* [[User:virtualmemorys|Bob Wang]]
* [[User:Ocantan|Oscar Cantán]]
* [[User:Sfkeller|Stefan Keller]]
* [[User:candrsn|Carl Anderson]]
* ''please add yourself''

== Existing (Meta) Search Projects and Related Efforts ==

More on metadata models at [[Geodata_Metadata_Requirements]]

Search services:
* See [[Geodata_Metadata_Requirements#Discovery]]
* (Meta) Data Catalogues / Data Repositories
** [http://www.mapdex.org/search/ Mapdex] is "a global Index of 2,018 servers, serving 37,168 map services, containing over 400,000 GIS Layers, covering more than 4,000,000 columns!"
** [http://www.geotorrent.org/ GeoTorrent] hosts BitTorrents of shapefile/TIFF format data.
** [http://www.fao.org/geonetwork/ GeoNetwork] "Find Interactive Maps, GIS datasets, Satellite Imagery and Related Applications"
** [http://www.dlese.org/libdev/dcs_overview.html DLESE Collection System] offers a metadata repository and editor and supports OAI-PMH as data provider and harvester
** [http://gis.hsr.ch/gmdb/ Geo Meta Data Base (GMDB)] - Metadata repository and editor based on ISO 19115/119 Metadata and Dublin Core with XML export and OAI-PMH data provider support (german only)
** GDI Portals (country specific): [http://www.geodata.gov US], [http://www.gogeo.ac.uk UK], [http://www.geoportal.bund.de D], [http://www.geoland.at/ A], [http://www.geocat.ch CH], [http://geodaten.llv.li/geoshop/public.html LI], [http://www.geoportail.fr/ F], ...
* (Meta) Search engines:
** [http://geometa.info/ geometa.info] - search engine for geospatial services, data and documents combining structured and unstructured data (currently german only)
** [http://www.google.com/search?q=allinurl%3A+getcapabilities Google search] using 'allinurl' parameter

Lists about data sources and services:
* Lists on web services:
** http://www.skylab-mobilesystems.com/ger/wms_serverlist.html simple WMS service URL list
** http://www.refractions.net/white_papers/ogcsurvey/ Automated OGC Survey on the Web (WMF, WFS, ...)
** http://geometa.info/search.jsp?query=type%3Awms WMS search engine
** http://exploreourpla.net/maps/
** http://wms-sites.com/ catalog of WMS sites
** [[Orthophotography]] Annotated list of Orthophotography WMS Services
* Lists on data services:
** http://datagateway.nrcs.usda.gov/ US data servers

== Public Datasets for Possible Mirroring or Distribution ==

=== Gazetteer Data ===
... basically placenames with coordinates ...

* [http://www.geonames.org/ Geonames.org] gazetteer (includes [http://earth-info.nga.mil/gns/html/ NGA GNS Gazetteer])
* [http://prdownloads.sourceforge.net/nasa-exp/BlueMarble-Placenames.zip?download WorldWind Placenames] (markusN can provide PERL to read this)

=== Vector data ===
* VMAP0 - 1:1Mio, very generalised vector data for many features, around 70 [http://www.terragear.org/docs/vmap0/coverage.html layers] (already at telascience) - see also [http://www.mapability.com/info/vmap0_index.html here] for docs
* [http://aprsworld.net/gisdata/world/ World map for APRS], 1:1.1mio
* [http://www.soest.hawaii.edu/wessel/gshhs/gshhs.html GSHHS] - world coastlines, different scales available
* TIGER/Line (USA) - street and addressing data for the US
* RNF (Canada) - street and addressing data for Canada
* [http://www.openstreetmap.org OpenStreetMap] - data available through a [http://wiki.openstreetmap.org/index.php/REST HTTP based XML interface]. They've also been getting requests for shapefile and GML output of their data.
* [http://www.maplibrary.org/stacks/Africa_lite.asp African geodata]

=== Raster data ===
* DEM
** [ftp://e0srp01u.ecs.nasa.gov/srtm/version2 SRTM V2]
** [http://www.ngdc.noaa.gov/mgg/image/2minrelief.html ETOPO2]
** [http://topex.ucsd.edu/WWW_html/srtm30_plus.html TOPEX]: SRTM30 (with GTOPO30 data for high latitudes where SRTM data are not available)
** [http://ekman.csc.noaa.gov/TCM/ NOAA TCM] LIDAR / IfSAR
* Satellite Data
** Landsat ([http://onearth.jpl.nasa.gov/ OnEarth] - [http://telascience.sdsc.edu/tela_data/onearth/ mirror already at telascience])
** [http://earthobservatory.nasa.gov/Newsroom/BlueMarble/ Blue Marble] / [http://www.iac.ethz.ch/staff/stockli/bmng/ Blue Marble Next Generation] (mirror already at telascience)
** ASTER (from GLCF)
** MODIS (from NASA EDC)
** USGS Urban Orthos (URL?)
* Maps derived from Satellite Data
** Nested Imagery Layer (Best of -- resolution -- with seamless zoom through multiple levels)
** [http://glcf.umiacs.umd.edu/data/landcover/ AVHRR Landuse Map] from GLCF
** [http://www.shadedrelief.com/natural/ natural earth]
** [http://dmsp.ngdc.noaa.gov/html/projects/lights.html City lights]
** [http://www.worldwildlife.org/freshwater/hydrosheds.cfm HydroSHEDS] - Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales
** [http://unosat.web.cern.ch/unosat/ UNOSAT imagery] http://unosat.web.cern.ch/unosat/asp/prod_free.asp

== Wishlist for Public Datasets ==

* Orthophotos
** Possible sources:
** http://www.fgdl.org/download/index.html
** http://datagateway.nrcs.usda.gov/

== Search Protocols ==

* GIS specific:
** OGC's CSW 2.0 (work in progress...)
*** [http://www.opengeospatial.org/standards/requests/29 OpenGIS Catalogue Services - ebRIM (ISO/TS 15000-3) profile of CSW]
*** (ISO/OGC's "ISO19115/ISO19119 Application Profile for CSW 2.0")
*** See a comparison between [http://www.gis.hsr.ch/wiki/OAI-PMH CSW and OAI-PMH]
** OGC's WFS (profile) serving (profiled) ISO 19115/19119 metadata format...?
** 'Lean and mean' proposals on project level...
*** [[Simple Catalog Interface]]
* Related search protocols - possibly to be profiled or specialized by geoinformation requirements:
** [http://www.openarchives.org/OAI/openarchivesprotocol.html Open Archives Initiative Protocol for Metadata Harvesting 2.0] (OAI-PMH)
** [http://www.loc.gov/standards/sru/ Search/Retrieve via URL] (SRU/SRW)
** [http://en.wikipedia.org/wiki/OpenSearch OpenSearch] proposal from A9
** [http://lcweb.loc.gov/z3950/agency/document.html Z39.50 ANSI/NISO standard protocol]
** [http://www.ebxml.org/ ebXML]/ebRIM Messaging Service 2.0

== Hosting Plan ==

(placeholder for an initial hosting plan sketch)

== See Also ==

* [[Geodata Packaging Working Group]]
* [[Geodata Licensing Working Group]]
* [[WMS Tile Caching]] proposal
* [[Geodata processing at telascience.org]]