OSGeo - User contributions [en]

2007 Google SoC Project Milestones

2007-06-24T09:45:32Z

Wiki-Xingkth: /* Project Information */

This page will be used to track the Milestones reached by each project particpating in the OSGeo Umbrella for the 2007 Google Summer of Code.

= Project Information =

{|border=1 align=center
| Student || Project || Primary Mentor/Contact || Alternate Mentor/Contact || Subscribed To Project Mailing List || Subscribed To OSGeo Mailing List || Repository Access || Student Has Mailed Project Mailing List
|-
| Daniel Bundala || GRASS - Line simplification & Smoothing Modules ([http://code.google.com/soc/osgeo/appinfo.html?csaid=3D7195C3927C616D Abstract])|| Wolf Bergenheim || - || Y || Y || Y || Y
|-
| Maximilian Maldacker || GRASS - Shortest Path in Free Vector Space ([http://code.google.com/soc/osgeo/appinfo.html?csaid=FEF51B36978B92BF Abstract])|| Wolf Bergenheim || - || Y || Y || Y || Y
|-
| Klokan Petr Přidal || [[GDAL2Tiles_SoC_2007|GDAL - GDAL2Tiles, Tile Raster Driver]] || Howard Butler || - || Y || Y || ||
|-
| Jens Oberender || [http://code.google.com/soc/osgeo/app.html?csaid=Ml0LEQJxRzMKMhJKHQ5FCXYEbxBSEg4ECSBSOUMBQAlV%0A GDAL - KML Read Support For Existing Driver] || Mateusz Loskot || - || Y || Y || Y ||
|-
| Christophe Rousson || uDig - Data Caching || Ian Turton || Jesse || Y || Y || Y || Y
|-
| Eduin Yezid Carrillo Vega || PostGIS - [http://code.google.com/p/postexperiments Materialized Views with Geometric Support]
|| Mark Leslie || Kevin Neufeld || Y || Y || [http://svn.refractions.net/postgis/branches/gSoC2007/ Y] || [http://postgis.refractions.net/pipermail/postgis-devel/2007-June/002593.html Y] ||
|-
| Christopher Whitney || GeoServer - JTileCache || Justin Deoliveira || Andrea Aime || Y || Y || ||
|-
| Daniele Romagnolil || GeoTools - Multi-Dimensional Raster Data Sources ([http://code.google.com/soc/osgeo/appinfo.html?csaid=699C8EA28A4718D1 Abstract])|| Simone Giannecchini || Martin Desruisseaux || Y || Y || Y || Y
|-
| Jan Jezek|| GeoTools and uDig - Transformation Algorithms || Jesse Eichar || Martin Desruisseaux || Y || Y || Y || Y
|-
| Xing Lin || PostGIS - Coverage Model and Operations ([http://code.google.com/soc/osgeo/appinfo.html?csaid=2425D23F080CAAFB Abstract])|| Timothy Keitt|| (request to postgis-devel) || Y || Y || Y || Y
|-
| Anthony Manfredi || GeoServer - Style Editor || Andrea Aime || Cory Horner || Y || Y || || Y
|-
| Rui Li || uDig Interactive GeoRSS Tool ([http://code.google.com/soc/osgeo/appinfo.html?csaid=CB1B7287EFAF39DA Abstract])|| Richard Gould || Justin Deolivera || Y || Y || Y ||
|-
| Hans Haggstrom || GeoTools 3D Rendering Pipeline || Jody Garnett || Landon Blake || Y || ? || Y || Y
|-
| Adam Nowacki || GDAL - OCG WMS Driver || Daniel Morissette || ? || Y || Y || ||
|-
| Michael Craig || 3D Rendering Pipeline Component For GIS Servers (cancelled) || Landon Blake || Jody Garnett || N || N || N || N
|}

Note: Another similar table can be found here:
- http://docs.codehaus.org/display/GEOTOOLS/Summer+of+Code

= Navigation =
[http://wiki.osgeo.org/index.php/Google_Summer_of_Code OSGeo Google Summer of Code Home]

[http://code.google.com/soc/ 2007 Google Summer of Code Home]

List of [http://code.google.com/soc/osgeo/about.html OSGeo proposals for Summer of Code]

PostGIS SoC Ideas 2007

2007-06-18T09:10:36Z

Wiki-Xingkth: /* Coverage model and operations */

== Ideas for Google Summer of Code students wanting to work on PostGIS ==

=== Topology model and operations ===

The project consists in providing a standardized interface for storing topology information, that is sets of Edges, Nodes, Areas and their relations in constituting a Feature. There's already a [http://postgis.refractions.net/support/wiki/index.php?PostgisTopology draft implementation] of the model, what can be done is (in random order):

* Implementing topological operation directly using the topology model rather then converting input to simple Geometries.
* Import from / export to popular topology data formats (ie: TIGER)

=== Network model and operations ===

The project is aimed at providing a standardized interface for topological
network information storage and operations. Tipical use would be modeling
communication networks, composed by Links and Nodes, and performing
tasks such as least cost path finding.

==== Linking to CGAL Library ====

The [http://www.cgal.org/ Computational Geometry Algorithms Library] supports many algorithms for spatial analysis. Voronois, delaunays, etc.
==== Linking to Boost Graph Library ====

The [http://www.boost.org/libs/graph/doc/index.html Boost Graph Library] supports many algorithms for graph and network analysis. Because it uses a generic iterator-based interface, it can easily be grafted into other frameworks simply by providing the appropriate iterator classes.

=== Coverage model and operations ===

Allow storage and operations on coverage (raster-like) data. Geo-referenced images (aerial photo, satellite images) by are acquired by remote sensing techniques, as well as ordinary photo will be supported to be stored, indexed, accessed and processed within PostgreSQL/PostGIS database. Similar approach as Oracle GeoRaster will be taken.

For more information about this Project on Google SoC 2007, please follow this link: [http://code.google.com/soc/osgeo/appinfo.html?csaid=2425D23F080CAAFB]

More detail information about the design and implementation is coming soon.

Any advice or comments, please email to me [mailto://solo.lin@gmail.com].

=== GEOS performance improvements ===

The [http://geos.refractions.net/ GEOS] C++ library suffers from a design too closely bound to it's Java-implemented parent, [http://www.jump-project.org/project.php?PID=JTS&SID=OVER JTS]. This approach has introduced an unnecessary overhead throughout
the whole operations flow due to excessive dynamic polymorphism and heap allocations. Redesigning the most used subsystems could improve the overall performance. Random ideas:

* Redesign index classes using a templated approach.
* Enforce use of standard algorithms wherever appropriate.

== Potential Mentors ==

Developers in the PostGIS community who would be interested in supporting one of the above projects:
* [[User:Mloskot|Mateusz Loskot]] - mloskot[]gmail.com - interested in supporting ''GEOS performance improvements'' task
* [[User:Tkeitt|Tim Keitt]] - I'm interested in supporting "Network model and operations" and "Coverage model and operations" tasks

== Other projects ==

Please see [[Google Summer of Code]]

PostGIS SoC Ideas 2007

2007-06-18T09:09:54Z

Wiki-Xingkth: /* Coverage model and operations */

== Ideas for Google Summer of Code students wanting to work on PostGIS ==

=== Topology model and operations ===

The project consists in providing a standardized interface for storing topology information, that is sets of Edges, Nodes, Areas and their relations in constituting a Feature. There's already a [http://postgis.refractions.net/support/wiki/index.php?PostgisTopology draft implementation] of the model, what can be done is (in random order):

* Implementing topological operation directly using the topology model rather then converting input to simple Geometries.
* Import from / export to popular topology data formats (ie: TIGER)

=== Network model and operations ===

The project is aimed at providing a standardized interface for topological
network information storage and operations. Tipical use would be modeling
communication networks, composed by Links and Nodes, and performing
tasks such as least cost path finding.

==== Linking to CGAL Library ====

The [http://www.cgal.org/ Computational Geometry Algorithms Library] supports many algorithms for spatial analysis. Voronois, delaunays, etc.
==== Linking to Boost Graph Library ====

The [http://www.boost.org/libs/graph/doc/index.html Boost Graph Library] supports many algorithms for graph and network analysis. Because it uses a generic iterator-based interface, it can easily be grafted into other frameworks simply by providing the appropriate iterator classes.

=== Coverage model and operations ===

Allow storage and operations on coverage (raster-like) data. Geo-referenced images (aerial photo, satellite images) by are acquired by remote sensing techniques, as well as ordinary photo will be supported to be stored, indexed, accessed and processed within PostgreSQL/PostGIS database. Similar approach as Oracle GeoRaster will be taken.

For more information about this Project on Google SoC 2007, please follow this link: [http://code.google.com/soc/osgeo/appinfo.html?csaid=2425D23F080CAAFB]

More detail information about the design and implementation is coming soon.

Any advice or comments, please email to me[mailto://solo.lin@gmail.com].

=== GEOS performance improvements ===

The [http://geos.refractions.net/ GEOS] C++ library suffers from a design too closely bound to it's Java-implemented parent, [http://www.jump-project.org/project.php?PID=JTS&SID=OVER JTS]. This approach has introduced an unnecessary overhead throughout
the whole operations flow due to excessive dynamic polymorphism and heap allocations. Redesigning the most used subsystems could improve the overall performance. Random ideas:

* Redesign index classes using a templated approach.
* Enforce use of standard algorithms wherever appropriate.

== Potential Mentors ==

Developers in the PostGIS community who would be interested in supporting one of the above projects:
* [[User:Mloskot|Mateusz Loskot]] - mloskot[]gmail.com - interested in supporting ''GEOS performance improvements'' task
* [[User:Tkeitt|Tim Keitt]] - I'm interested in supporting "Network model and operations" and "Coverage model and operations" tasks

== Other projects ==

Please see [[Google Summer of Code]]

PostGIS SoC Ideas 2007

2007-06-18T09:09:24Z

Wiki-Xingkth: /* Coverage model and operations */

== Ideas for Google Summer of Code students wanting to work on PostGIS ==

=== Topology model and operations ===

The project consists in providing a standardized interface for storing topology information, that is sets of Edges, Nodes, Areas and their relations in constituting a Feature. There's already a [http://postgis.refractions.net/support/wiki/index.php?PostgisTopology draft implementation] of the model, what can be done is (in random order):

* Implementing topological operation directly using the topology model rather then converting input to simple Geometries.
* Import from / export to popular topology data formats (ie: TIGER)

=== Network model and operations ===

The project is aimed at providing a standardized interface for topological
network information storage and operations. Tipical use would be modeling
communication networks, composed by Links and Nodes, and performing
tasks such as least cost path finding.

==== Linking to CGAL Library ====

The [http://www.cgal.org/ Computational Geometry Algorithms Library] supports many algorithms for spatial analysis. Voronois, delaunays, etc.
==== Linking to Boost Graph Library ====

The [http://www.boost.org/libs/graph/doc/index.html Boost Graph Library] supports many algorithms for graph and network analysis. Because it uses a generic iterator-based interface, it can easily be grafted into other frameworks simply by providing the appropriate iterator classes.

=== Coverage model and operations ===

Allow storage and operations on coverage (raster-like) data. Geo-referenced images (aerial photo, satellite images) by are acquired by remote sensing techniques, as well as ordinary photo will be supported to be stored, indexed, accessed and processed within PostgreSQL/PostGIS database. Similar approach as Oracle GeoRaster will be taken.

For more information about this Project on Google SoC 2007, please follow this link: [http://code.google.com/soc/osgeo/appinfo.html?csaid=2425D23F080CAAFB]

More detail information about the design and implementation is coming soon.

Any advice or comments, please email to me[solo.lin@gmail.com].

=== GEOS performance improvements ===

The [http://geos.refractions.net/ GEOS] C++ library suffers from a design too closely bound to it's Java-implemented parent, [http://www.jump-project.org/project.php?PID=JTS&SID=OVER JTS]. This approach has introduced an unnecessary overhead throughout
the whole operations flow due to excessive dynamic polymorphism and heap allocations. Redesigning the most used subsystems could improve the overall performance. Random ideas:

* Redesign index classes using a templated approach.
* Enforce use of standard algorithms wherever appropriate.

== Potential Mentors ==

Developers in the PostGIS community who would be interested in supporting one of the above projects:
* [[User:Mloskot|Mateusz Loskot]] - mloskot[]gmail.com - interested in supporting ''GEOS performance improvements'' task
* [[User:Tkeitt|Tim Keitt]] - I'm interested in supporting "Network model and operations" and "Coverage model and operations" tasks

== Other projects ==

Please see [[Google Summer of Code]]

2007 Google SoC Project Milestones

2007-05-16T10:46:25Z

Wiki-Xingkth: /* Project Information */

This page will be used to track the Milestones reached by each project particpating in the OSGeo Umbrella for the 2007 Google Summer of Code.

= Project Information =

{|border=1 align=center
| Student || Project || Primary Mentor/Contact || Alternate Mentor/Contact || Subscribed To Project Mailing List || Subscribed To OSGeo Mailing List || Repository Access
|-
| Daniel Bundala || GRASS - Line simplification & Smoothing Modules ([http://code.google.com/soc/osgeo/appinfo.html?csaid=3D7195C3927C616D Abstract])|| Wolf Bergenheim || - || Y || Y || N
|-
| Maximilian Maldacker || GRASS - Shortest Path in Free Vector Space ([http://code.google.com/soc/osgeo/appinfo.html?csaid=FEF51B36978B92BF Abstract])|| Wolf Bergenheim || - || Y || Y || N
|-
| Klokan Petr Přidal || [[GDAL2Tiles_SoC_2007|GDAL - GDAL2Tiles, Tile Raster Driver]] || Howard Butler || - || Y || Y || N
|-
| Jens Oberender || [http://code.google.com/soc/osgeo/app.html?csaid=Ml0LEQJxRzMKMhJKHQ5FCXYEbxBSEg4ECSBSOUMBQAlV%0A GDAL - KML Read Support For Existing Driver] || Mateusz Loskot || - || Y || Y || Account created, not tested
|-
| Christophe Rousson || uDig - Data Caching || Ian Turton || Jesse || Y || Y || N
|-
| Eduin Yezid Carrillo Vega|| PostGIS - Materialized Views with Geometric Support|| Mark Leslie || Kevin Neufeld || Y || N || Y
|-
| Christopher Whitney || GeoServer - JTileCache || Justin Deoliveira || - || Y || Y || N
|-
| Petr Pridal || GDAL - Raster Driver For PNG/JPG Tile Structure || Howard Butler || ? || N || N || N
|-
| Daniele Romagnolil || GeoTools - Multi-Dimensional Raster Data Sources|| Simone Giannecchini || ? || N || N || N
|-
| Jan Jezek|| GeoTools and uDig - Transformation Algorithms || Jesse Eichar || N || N || N
|-
| Xing Lin || PostGIS - Coverage Model and Operations ([http://code.google.com/soc/osgeo/appinfo.html?csaid=2425D23F080CAAFB Abstract])|| Timothy Keitt|| ? || Y || Y || N
|-
| Anthony Manfredi || GeoServer - Style Edirot || Andrea Aime||? || N || N || N
|-
| Rui Li || uDig Interactive GeoRSS Tool || Richard Gould || ? || N || N || N
|-
| Philippe Vachon || GDAL - Synthetic RADAR Processor || Frank Warmerdam || Cancelled || N || N || N
|-
| Hans Haggstrom || GeoTools 3D Rendering Pipeline || Jody Garnett || Landon Blake || N || N || N
|-
| Adam Nowacki || GDAL - OCG WMS Driver || Daniel Morissette || ? || Y || Y || N
|-
| Michael Craig || 3D Rendering Pipeline Component For GIs Servers ||Jody Garnett || ? || N || N || N
|}

Note: Another similar table can be found here:
- http://docs.codehaus.org/display/GEOTOOLS/Summer+of+Code

= Navigation =
[http://wiki.osgeo.org/index.php/Google_Summer_of_Code OSGeo Google Summer of Code Home]

[http://code.google.com/soc/ 2007 Google Summer of Code Home]

List of [http://code.google.com/soc/osgeo/about.html OSGeo proposals for Summer of Code]

2007 Google SoC Project Milestones

2007-05-16T10:42:30Z

Wiki-Xingkth: /* Project Information */

This page will be used to track the Milestones reached by each project particpating in the OSGeo Umbrella for the 2007 Google Summer of Code.

= Project Information =

{|border=1 align=center
| Student || Project || Primary Mentor/Contact || Alternate Mentor/Contact || Subscribed To Project Mailing List || Subscribed To OSGeo Mailing List || Repository Access
|-
| Daniel Bundala || GRASS - Line simplification & Smoothing Modules ([http://code.google.com/soc/osgeo/appinfo.html?csaid=3D7195C3927C616D Abstract])|| Wolf Bergenheim || - || Y || Y || N
|-
| Maximilian Maldacker || GRASS - Shortest Path in Free Vector Space ([http://code.google.com/soc/osgeo/appinfo.html?csaid=FEF51B36978B92BF Abstract])|| Wolf Bergenheim || - || Y || Y || N
|-
| Klokan Petr Přidal || [[GDAL2Tiles_SoC_2007|GDAL - GDAL2Tiles, Tile Raster Driver]] || Howard Butler || - || Y || Y || N
|-
| Jens Oberender || [http://code.google.com/soc/osgeo/app.html?csaid=Ml0LEQJxRzMKMhJKHQ5FCXYEbxBSEg4ECSBSOUMBQAlV%0A GDAL - KML Read Support For Existing Driver] || Mateusz Loskot || - || Y || Y || Account created, not tested
|-
| Christophe Rousson || uDig - Data Caching || Ian Turton || Jesse || Y || Y || N
|-
| Eduin Yezid Carrillo Vega|| PostGIS - Materialized Views with Geometric Support|| Mark Leslie || Kevin Neufeld || Y || N || Y
|-
| Christopher Whitney || GeoServer - JTileCache || Justin Deoliveira || - || Y || Y || N
|-
| Petr Pridal || GDAL - Raster Driver For PNG/JPG Tile Structure || Howard Butler || ? || N || N || N
|-
| Daniele Romagnolil || GeoTools - Multi-Dimensional Raster Data Sources|| Simone Giannecchini || ? || N || N || N
|-
| Jan Jezek|| GeoTools and uDig - Transformation Algorithms || Jesse Eichar || N || N || N
|-
| Xing Lin || PostGIS - Coverage Model and Operations ([http://code.google.com/soc/osgeo/appinfo.html?csaid=2425D23F080CAAFB Abstract])|| Timothy Keitt|| ? || N || N || N
|-
| Anthony Manfredi || GeoServer - Style Edirot || Andrea Aime||? || N || N || N
|-
| Rui Li || uDig Interactive GeoRSS Tool || Richard Gould || ? || N || N || N
|-
| Philippe Vachon || GDAL - Synthetic RADAR Processor || Frank Warmerdam || Cancelled || N || N || N
|-
| Hans Haggstrom || GeoTools 3D Rendering Pipeline || Jody Garnett || Landon Blake || N || N || N
|-
| Adam Nowacki || GDAL - OCG WMS Driver || Daniel Morissette || ? || Y || Y || N
|-
| Michael Craig || 3D Rendering Pipeline Component For GIs Servers ||Jody Garnett || ? || N || N || N
|}

Note: Another similar table can be found here:
- http://docs.codehaus.org/display/GEOTOOLS/Summer+of+Code

= Navigation =
[http://wiki.osgeo.org/index.php/Google_Summer_of_Code OSGeo Google Summer of Code Home]

[http://code.google.com/soc/ 2007 Google Summer of Code Home]

List of [http://code.google.com/soc/osgeo/about.html OSGeo proposals for Summer of Code]