OSGeo - User contributions [en]

FOSS4G 2009 Posters

2009-09-05T19:39:23Z

Wiki-Zabak:

''Note: Details on this wiki still need to be finalised, and is being modeled on FOSS4G 2007's Poster session. http://2007.foss4g.org/presentations/posters/''

Posters will be accepted from Case Studies, Projects or Programs that are Geospatial and have a strong Open Source and/or Open Standards theme. Refer to http://2007.foss4g.org/presentations/posters/ for examples of posters from prior years.

== Coordinators ==
* Shoaib Burq < s a b u r q AT gmail.c om>
* Antti Roppola <ha s t ur AT gmail.c om>

== Format ==

* '''Location''': Posters will be shown in the [http://www.scec.com.au/rooms/floorplan.cfm?roomID=128 Lower Parkside Foyer]
* '''Size''': Posters are to be printed as portrait (A0 or A1).
* '''Schedule''': The FOSS4G poster session will be during morning tea breaks on Thursday and Friday. Poster presenters should plan to be near their posters to talk to viewers and answer questions.
* '''Quantity''': The FOSS4G poster session will have room for as many as 32 posters.
* '''Acceptance''': On topic Posters will be accepted "first come, first served" until there is no more room or the deadline passes.
* '''License''': Posters should be made available publicly in PDF format to be displayed on the FOSS4G website as per the timeline.

== Printing ==
* Contributors are responsible for printing their own posters. One option for printing posters close to the conference venue is the [http://tinyurl.com/darling-posters Ultimo/Darling Harbor Kwik Kopy ]

== Timeline ==
* Interested posters should add their

{| border="1"
! Date !! Poster Milestones
|-
| 17 Aug 2009 || Call for posters
|-
| 21 Sep 2009 || Close call for posters
|-
| 6 Oct 2009 || Posters complete and added to website
|-
| 21 Oct 2009 || Posters displayed at FOSS4G conference
|}

==Proposed Posters==
''People are encouraged to add proposed posters to the end of this list.''

{| border="1"
! Title!! Abstract !! Author || Author Affiliations
|-
| 1. Title || Abstract || Author || Author Affiliations
|-
| 1. International Coastal Atlas Network || ICAN aims to be a global reference for the development of coastal web atlases (CWAs). Via the expertise of more than 35 member organisations. ICAN intendes to inform, guide and influence matters related to research, development and use of CWAs. || Kathrin Kopke, Kathy Belpaeme and Juan Arévalo|| Coastal and Marine Resources Centre, Kustbeheer, European Environment Agency
|-
| Distant Early Warning System - Information Logistics with FOSS and OGC Standards || Poster will be shown in conjunction with [http://2009.foss4g.org/presentations/#presentation_126 DEWS Live Demonstration]. DEWS user interface based on uDig and GeoTools, workflows, system architecture, details of information logistics and FOSS usage will be depicted on the poster. || Matthias Lendholt, Martin Hammitzsch || GFZ German Research Centre for Geosciences
|-
| An open source geo-transformation library for data custodians.
|| The KMStrlib geo-transformation library, which has been in active use and development since the 1960s at KMS (National Survey and Cadastre, Denmark), is now finally being released under an open source licence.

KMStrlib provides a unified interface to a large number of cartographic projections, and geophysical transformations (including change of vertical and horizontal datums and epochs).

Due to KMS's role as a long term geodata custodian, care has been taken to ensure that the transformations implemented are two way symmetric (to the extent possible: some transformations are inherently vaguely defined, and must be implemented by stochastic predictions, rather than projections). This has led to the adoption of a technique of dual self-checking transformations, effectively doing a roundtrip "forward-inverse" operation for all library calls. While elaborate, this ensures that uncaught implementation blunders, and asymmetric singularities are diagnosed and reported. This is essential for long term (multiple century scale) geodata interoperability.

The poster presentation will include schematic details of the dual self-checking procedure, and illustrate the characteristics of the KMStrlib implementation of a fast, highly precise transverse mercator projection, remaining accurate at the 0.03 mm level even at distances 7500 km from the central meridian.
|| Thomas Knudsen, Karsten Engsager, Knud Poder, Simon Lyngby Kokkendorff
|| KE: DTU Space, Copenhagen, Denmark; KP: Ølstykke, Denmark (Emeritus, KMS); TK, SLK: National Survey and Cadastre (KMS), Copenhagen, Denmark;
|-

| Quality control of digital elevation models.
|| In this poster presentation, we describe how the PINGPONG program (FOSS distributed under the GPL) has been used to implement a quality control procedure for laser scanned DEMs. The approach used is independent of navigational (GPS/INS) data and ground control points.

Fundamentally, PINGPONG is a high speed gridding program for scattered geodata. It uses a simple, but efficient, data management technique to speed up the gridding procedure.

The speed of PINGPONG makes it feasible to include a large amount of gridding in our quality control procedure, even for national scale datasets (in our case involving in the order of 20 billion data points), so the procedure is based on analysis of the local difference of a digital surface model, and a digital terrain model.

Effectively, this means that we are generating two interim elevation models in order to test one point cloud for its suitability for generating a final model. While this may seem somewhat extravagant, experience shows that it is actually both useful and efficient.
|| Thomas Knudsen, Brigitte C. Rosenkranz
|| National Survey and Cadastre (KMS), Copenhagen, Denmark
|-

| INSPIRE compliant geoservices for topographic databases of the Lombardy Region in Italy.
|| Aim of the work is the implementation of geoservices compliant with the European INSPIRE Directive for distributing Lombardy Region geotopographic databases at scale 1:2000.
The services are based on OpenGIS Catalogue Service Implementation Specification (CS-W 2.0.1) and OpenGIS Web Map Service (WMS 1.3.0) Implementation Specification as required by the Directive itself. They were implemented with Open Source Software: UMN Mapserver for WMS service and Geonetwork for metadata handling (CS-W).
Test data used for the prototype are compliant with the Standard for modelling geographic data recently approved by the Lombardy Region (february 2008).
The infrastructure is freely available for all territorial Authorities having such a kind of geotopographic database. A website with a demo version is already online (http://ows.como.polimi.it) and will be shown if an internet connection is available.
|| Maria Antonia Brovelli, Michele Beretta, Marco Negretti
|| Politecnico di Milano, Italy
|-

| Electronic Tag Data Visualisation
|| In 1981 CSIRO Marine and Atmospheric Research (CMAR) began development of a database to house data on conventional tagging of marine fishes. Since that time CMAR’s tagging projects have expanded and incorporated a wide range of tags from the simple conventional through to the latest electronic tags, and have began tagging marine mammals and birds. The amount of data being generated has vastly increased since 1981. CMAR has promoted a centralisation of tag data to ensure data are widely accessible, secured against loss, and to reduce redundancy amongst projects. One criticism of this approach has been a difficulty in data access within and across sites. Through the Electronic Tag Support Systems project CMAR has developed a web portal, using SVG, to the tagging database allowing users to browse through the electronic tag data and easily extract data of interest for further analysis. Tag tracks are displayed on an interactive map and archival data displayed in interactive graphs.
|| Paavo Jumppanen, Jason Hartog, Scott Cooper
|| CSIRO Wealth from Oceans Flagship
|-

| OldMapsOnline.org: Open Source & Online Tools for Old Maps
|| OldMapsOnline.org is a research project targeted to the software development specialized to old map collections. We are designing online tools for collaborative georeferencing, annotation, 3D visualization, accuracy analysis and geometadata speciﬁcation.

We provide free software and tutorials for online publishing of your scanned historical maps. We have developed IIPImage JPEG2000 Image Server: open source server software for fast delivery of the ultra high resolution raster imagery directly from your master scans in formats like JPEG2000 or TIFF. This software can be used for free on your servers for the image publishing. You can also publish your maps as pre-rendered tiles (zoomify) without any extensive configuration of your webserver. There is a whole collection of attractive pan&zoom viewers for the visualization of your scanned maps in your web sites - all viewers are compatible with both publishing techniques (JPEG2000/TIFF or prerendered tiles) - and they are mostly available including the source code, so you can easily customize them according your needs.

Once your maps are online you can use our web-based tools to georeference and visualize them in 3D with Google Earth web browser plugin. Your scanned maps can simply overlay each other as well as the popular interactive base maps like OpenStreetMap, Bing, Yahoo or Google Maps. You can even analyze their cartometric accuracy - all of this within the web browser.

Our project is in progress but we have already published several software tools and we have prototypes for the complete workflow. More info at http://www.oldmapsonline.org/

|| Klokan Petr Pridal
|| Moravian Library Brno, Czech Republic
|-

|}

==Accepted Posters==
''The coordinators are responsible for moving Proposed Posters to Accepted.''

{| border="1"
! Title!! Abstract !! Author || Author Affiliations
|-
| 1. Title || Abstract || Author || Author Affiliations
|-
|}

[[Category:FOSS4G2009]]
[[Category:FOSS4G]]

GDAL2Tiles SoC 2007

2007-03-21T14:16:40Z

Wiki-Zabak:

Implementation of [http://www.gdal.org/gdal_drivertut.html Raster Driver for GDAL library], which will allow to write PNG/JPG tile structure as a newly supported file-format. Generated tiles will contain also XML metadata, so after putting them on any webserver they could be used as data source for [http://earth.google.com/ Google Earth] (with [http://earth.google.com/kml/kml_21tutorial.html#superoverlays SuperOverlay KML]), [http://maps.google.com/ Google Maps], [http://www.openlayers.org/ OpenLayers], [http://www.worldkit.org/ WorldKit] and probably other viewers.

Tile structure will follow recommendation from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification OSGEO Tile Map Service Specification].
Simple utility 'gdal2tiles' for converting [http://www.gdal.org/formats_list.html supported file-formats] into new tile structure will be created.

Implemetation of the file format driver will allow to export map raster data into Google Earth, Google Maps and other online viewers from any of applications which use GDAL library.

Idea for this project was suggested by FrankW at [[GDAL SoC Ideas]].

== Implementation details ==

=== Tile Structure ===

* Metadata from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification] will be created as a main source of georeference (especially [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification#TileMap_Resource TileMap Resource XML]).
* KML supports only EPSG:4326 (latlong with WGS84 datum) projection, so reprojection is needed if source projection is different. How to turn off unneeded tiles by Regions in KML?
* It would be nice to support zoom levels of Google Maps tiles (this have to be checked, maybe from [http://mapnik.org/ Mapnik] project, example of [http://mapnik.org/tiling/oxford/ generated tiles]. More info is available here: http://michal.guerquin.com/googlemaps.html

=== GDAL Driver ===

* implements Create() function, so random access to format is possible (so for example direct warping of image into tiles will run).

=== gdal2tiles ===

* Command-line utility similar to existing [http://www.gdal.org/gdal_utilities.html GDAL utilities].
* Should be able to process files without proper georeference (to publish X-Ray images, vedute and other large bitmap files too).

== Possible future extension (not necessarily part of SoC project) ==

* Support for more viewers ([http://dev.live.com/virtualearth/sdk/ Microsoft Virtual Earth] with generator [http://research.microsoft.com/mapcruncher/ MapCruncher], [http://worldwind.arc.nasa.gov/ NASA World Wind] with generator [http://www.worldwindcentral.com/wiki/Dstile_howto DSTile], any other?)
* Simple GUI for 'gdal2tiles' under Windows/Linux/Mac done with Python (one of WxWidgets/TKinter/EasyDialogs).
* Implementation of GDAL Reader for generated tile structure (could be based on [https://svn.osgeo.org/svn/gdal/trunk/gdal/frmts/wcs/ gdal/frmts/wcs], thanks FrankW)
* [http://www.staremapy.cz/zoomify-analyza/ Zoomify Tile Structure] as alternative or modification of Zoomify with support for generated structure
* Maybe implementation of georeference for tilestructure by use of GML.

== Schedule ==

* May 28: Designing the file format, XML Metadata formats(KML, TMS XML files, MS Virtual Earth, ...?) which will be supported have to be chosen and tested with their respective viewer applications, sample map is published.
* July 9: Alfa version of GDAL Driver for Tile Structure Writer is uploaded into official SVN.
* August 20: Final version of the driver as well as gdal2tiles utility are uploaded and reviewed.

== Competitors ==

Commercial applications like: [http://www.arc2earth.com/ Arc2Earth] have similar functionality. Several (mostly commercial) generators for Google Earth tiles were mentioned on http://www.ogleearth.com/.

Microsoft Research project [http://research.microsoft.com/mapcruncher/ MapCruncher] also generates tiles, but with metadata only for their MS Virtual Earth.

[http://www.zoomify.com/ Zoomify] could be now used as tiling program for SuperOverlay in GoogleEarth with free [http://www.zoomify.com/express.htm ZoomifyerEZ] and generator [http://www.staremapy.cz/zoomifykml/ ZoomifyKML] (which I created as a part of my Master Thesis).

== What new functionality this project brings ==

Clean open-source implementation of tile structure export. Any application which uses GDAL library will easily be able to export files into a tile structure. Supplied utility gdal2tiles will convert [http://www.gdal.org/formats_list.html any supported file format] with georeference into tiles, it will also allow batch mode processing of files.

GDAL is strong library for processing maps and large raster files, including reprojection, so any already georeferenced maps could be easily converted for simple on-line publishing on a webserver without special server requirements (like MapServer is). Advantages of this approach are described in [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification].

Reader could be implemented later, which will (with support on the side of UNM MapServer) allow to access published tile structure using WMS standard, where UNM MapServer will act as a proxy.

== Who will use results of this project ==

Several organizations and individuals who handle processing of maps.

Institutions which will use the 'gdal2tiles' utility from this project, as I am cooperating with them:
* Moravian Library in Brno, Czech Republic
* Historical institute of Czech Academy of Sciences
* Czech National Library
* National Library of Scotland
* University of Connecticut Library (with their grant [http://www.rlg.org/en/page.php?Page_ID=20522#article1 "Building a Globally Distributed Historical Sheet Map Set of Austro-Hungarian Topographic Maps, 1877-1914"], cooperating with New York Public Library, University of Connecticut Library, and Library of the American Geographical Society. It is a grant about building a scalable workflow and toolset for map libraries to add cartographic content to the Web.)

== Student's Biography ==

My name is Klokan Petr Přidal, I have finished Master degree in Applied Informatics at [http://www.muni.cz/ Masaryk University in Brno], now I am in the first semester of postgraduate study of Cartography at [http://www.cvut.cz/ Czech Technical University in Prague]. My Master thesis subject was [http://is.muni.cz/th/39656/fi_m/annotation_english.txt "Processing and Digital Publishing of Historical Documents"] ([http://www.staremapy.cz/th.pdf PDF of thesis in Czech]).

I am familiar with open-source projects. I have experience with Linux/Solaris system administration. I like Python language, but I have also used other languages (C language, PHP).
I have supplied some patches into Gnumeric ([http://bugzilla.gnome.org/show_bug.cgi?id=330129 #330129], [http://bugzilla.gnome.org/show_bug.cgi?id=334257 #334257]).
I founded a http://mplayerosx.sf.net/ project and I also won a competition in programming application for Mac using http://dictosx.sf.net/ (Objective-C).
My primary desktop is Gnome and Linux, but I also use Mac, Windows and Solaris. I did programming for all of these platforms (mostly smaller projects).

I am interested in historical cartography, I have several presentations about old maps and free software. I made a czech web page about it at http://www.staremapy.cz/ and registered domain http://www.oldmapsonline.org/ (which is not in use yet).

My homepage with contact info: http://www.klokan.cz/.

GDAL2Tiles SoC 2007

2007-03-21T14:14:40Z

Wiki-Zabak: /* Schedule */

Implementation of [http://www.gdal.org/gdal_drivertut.html Raster Driver for GDAL library], which will allow to write PNG/JPG tile structure as a new supported file-format. Generated tiles will contain also XML metadata, so after putting them on any webserver they could be used as data source for [http://earth.google.com/ Google Earth] (with [http://earth.google.com/kml/kml_21tutorial.html#superoverlays SuperOverlay KML]), [http://maps.google.com/ Google Maps], [http://www.openlayers.org/ OpenLayers], [http://www.worldkit.org/ WorldKit] and probably other viewers.

Tile structure will follow recommendation from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification OSGEO Tile Map Service Specification].
Simple utility 'gdal2tiles' for converting [http://www.gdal.org/formats_list.html supported file-formats] into new tile structure will be created.

Implemetation of the file format driver will allow to export map raster data into Google Earth, Google Maps and other online viewers from any of applications which use GDAL library.

Idea for this project was suggested by FrankW at [[GDAL SoC Ideas]].

== Implementation details ==

=== Tile Structure ===

* Metadata from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification] will be created as a main source of georeference (especially [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification#TileMap_Resource TileMap Resource XML]).
* KML supports only EPSG:4326 (latlong with WGS84 datum) projection, so reprojection is needed if source projection is different. How to turn off unneeded tiles by Regions in KML?
* It would be nice to support zoom levels of Google Maps tiles (this have to be checked, maybe from [http://mapnik.org/ Mapnik] project, example of [http://mapnik.org/tiling/oxford/ generated tiles]. More info is available here: http://michal.guerquin.com/googlemaps.html

=== GDAL Driver ===

* implements Create() function, so random access to format is possible (so for example direct warping of image into tiles will run).

=== gdal2tiles ===

* Command-line utility similar to existing [http://www.gdal.org/gdal_utilities.html GDAL utilities].
* Should be able to process files without proper georeference (to publish X-Ray images, vedute and other large bitmap files too).

== Possible future extension (not necessarily part of SoC project) ==

* Support for more viewers ([http://dev.live.com/virtualearth/sdk/ Microsoft Virtual Earth] with generator [http://research.microsoft.com/mapcruncher/ MapCruncher], [http://worldwind.arc.nasa.gov/ NASA World Wind] with generator [http://www.worldwindcentral.com/wiki/Dstile_howto DSTile], any other?)
* Simple GUI for 'gdal2tiles' under Windows/Linux/Mac done with Python (one of WxWidgets/TKinter/EasyDialogs).
* Implementation of GDAL Reader for generated tile structure (could be based on [https://svn.osgeo.org/svn/gdal/trunk/gdal/frmts/wcs/ gdal/frmts/wcs], thanks FrankW)
* [http://www.staremapy.cz/zoomify-analyza/ Zoomify Tile Structure] as alternative or modification of Zoomify with support for generated structure
* Maybe implementation of georeference for tilestructure by use of GML.

== Schedule ==

* May 28: Designing the file format, XML Metadata formats(KML, TMS XML files, MS Virtual Earth, ...?) which will be supported have to be chosen and tested with their respective viewer applications, sample map is published.
* July 9: Alfa version of GDAL Driver for Tile Structure Writer is uploaded into official SVN.
* August 20: Final version of the driver as well as gdal2tiles utility are uploaded and reviewed.

== Competitors ==

Commercial applications like: [http://www.arc2earth.com/ Arc2Earth] have similar functionality. Several (mostly commercial) generators for Google Earth tiles were mentioned on http://www.ogleearth.com/.

Microsoft Research project [http://research.microsoft.com/mapcruncher/ MapCruncher] also generates tiles, but with metadata only for their MS Virtual Earth.

[http://www.zoomify.com/ Zoomify] could be now used as tiling program for SuperOverlay in GoogleEarth with free [http://www.zoomify.com/express.htm ZoomifyerEZ] and generator [http://www.staremapy.cz/zoomifykml/ ZoomifyKML] (which I created as a part of my Master Thesis).

== What new functionality this project brings ==

Clean open-source implementation of tile structure export. Any application which uses GDAL library will easily be able to export files into a tile structure. Supplied utility gdal2tiles will convert [http://www.gdal.org/formats_list.html any supported file format] with georeference into tiles, it will also allow batch mode processing of files.

GDAL is strong library for processing maps and large raster files, including reprojection, so any already georeferenced maps could be easily converted for simple on-line publishing on a webserver without special server requirements (like MapServer is). Advantages of this approach are described in [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification].

Reader could be implemented later, which will (with support on the side of UNM MapServer) allow to access published tile structure using WMS standard, where UNM MapServer will act as a proxy.

== Who will use results of this project ==

Several organizations and individuals who handle processing of maps.

Institutions which will use the 'gdal2tiles' utility from this project, as I am cooperating with them:
* Moravian Library in Brno, Czech Republic
* Historical institute of Czech Academy of Sciences
* Czech National Library
* National Library of Scotland
* University of Connecticut Library (with their grant [http://www.rlg.org/en/page.php?Page_ID=20522#article1 "Building a Globally Distributed Historical Sheet Map Set of Austro-Hungarian Topographic Maps, 1877-1914"], cooperating with New York Public Library, University of Connecticut Library, and Library of the American Geographical Society. It is a grant about building a scalable workflow and toolset for map libraries to add cartographic content to the Web.)

== Student's Biography ==

My name is Klokan Petr Přidal, I have finished Master degree in Applied Informatics at [http://www.muni.cz/ Masaryk University in Brno], now I am in the first semester of postgraduate study of Cartography at [http://www.cvut.cz/ Czech Technical University in Prague]. My Master thesis subject was [http://is.muni.cz/th/39656/fi_m/annotation_english.txt "Processing and Digital Publishing of Historical Documents"] ([http://www.staremapy.cz/th.pdf PDF of thesis in Czech]).

I am familiar with open-source projects. I have experience with Linux/Solaris system administration. I like Python language, but I have also used other languages (C language, PHP).
I have supplied some patches into Gnumeric ([http://bugzilla.gnome.org/show_bug.cgi?id=330129 #330129], [http://bugzilla.gnome.org/show_bug.cgi?id=334257 #334257]).
I founded a http://mplayerosx.sf.net/ project and I also won a competition in programming application for Mac using http://dictosx.sf.net/ (Objective-C).
My primary desktop is Gnome and Linux, but I also use Mac, Windows and Solaris. I did programming for all of these platforms (mostly smaller projects).

I am interested in historical cartography, I have several presentations about old maps and free software. I made a czech web page about it at http://www.staremapy.cz/ and registered domain http://www.oldmapsonline.org/ (which is not in use yet).

My homepage with contact info: http://www.klokan.cz/.

GDAL2Tiles SoC 2007

2007-03-21T14:08:44Z

Wiki-Zabak: /* Competitors */

Implementation of [http://www.gdal.org/gdal_drivertut.html Raster Driver for GDAL library], which will allow to write PNG/JPG tile structure as a new supported file-format. Generated tiles will contain also XML metadata, so after putting them on any webserver they could be used as data source for [http://earth.google.com/ Google Earth] (with [http://earth.google.com/kml/kml_21tutorial.html#superoverlays SuperOverlay KML]), [http://maps.google.com/ Google Maps], [http://www.openlayers.org/ OpenLayers], [http://www.worldkit.org/ WorldKit] and probably other viewers.

Tile structure will follow recommendation from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification OSGEO Tile Map Service Specification].
Simple utility 'gdal2tiles' for converting [http://www.gdal.org/formats_list.html supported file-formats] into new tile structure will be created.

Implemetation of the file format driver will allow to export map raster data into Google Earth, Google Maps and other online viewers from any of applications which use GDAL library.

Idea for this project was suggested by FrankW at [[GDAL SoC Ideas]].

== Implementation details ==

=== Tile Structure ===

* Metadata from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification] will be created as a main source of georeference (especially [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification#TileMap_Resource TileMap Resource XML]).
* KML supports only EPSG:4326 (latlong with WGS84 datum) projection, so reprojection is needed if source projection is different. How to turn off unneeded tiles by Regions in KML?
* It would be nice to support zoom levels of Google Maps tiles (this have to be checked, maybe from [http://mapnik.org/ Mapnik] project, example of [http://mapnik.org/tiling/oxford/ generated tiles]. More info is available here: http://michal.guerquin.com/googlemaps.html

=== GDAL Driver ===

* implements Create() function, so random access to format is possible (so for example direct warping of image into tiles will run).

=== gdal2tiles ===

* Command-line utility similar to existing [http://www.gdal.org/gdal_utilities.html GDAL utilities].
* Should be able to process files without proper georeference (to publish X-Ray images, vedute and other large bitmap files too).

== Possible future extension (not necessarily part of SoC project) ==

* Support for more viewers ([http://dev.live.com/virtualearth/sdk/ Microsoft Virtual Earth] with generator [http://research.microsoft.com/mapcruncher/ MapCruncher], [http://worldwind.arc.nasa.gov/ NASA World Wind] with generator [http://www.worldwindcentral.com/wiki/Dstile_howto DSTile], any other?)
* Simple GUI for 'gdal2tiles' under Windows/Linux/Mac done with Python (one of WxWidgets/TKinter/EasyDialogs).
* Implementation of GDAL Reader for generated tile structure (could be based on [https://svn.osgeo.org/svn/gdal/trunk/gdal/frmts/wcs/ gdal/frmts/wcs], thanks FrankW)
* [http://www.staremapy.cz/zoomify-analyza/ Zoomify Tile Structure] as alternative or modification of Zoomify with support for generated structure
* Maybe implementation of georeference for tilestructure by use of GML.

== Schedule ==

* May 28: Designing of file format, all XML Metadata (KML, TMS XML files, MS Virtual Earth, ...?) have to be known and tested with supported viewers, sample map is published.
* July 9: Alfa version of GDAL Driver for Tile Structure Writer is uploaded into official SVN.
* August 20: Final version of the driver as well as gdal2tiles utility are uploaded and reviewed.

== Competitors ==

Commercial applications like: [http://www.arc2earth.com/ Arc2Earth] have similar functionality. Several (mostly commercial) generators for Google Earth tiles were mentioned on http://www.ogleearth.com/.

Microsoft Research project [http://research.microsoft.com/mapcruncher/ MapCruncher] also generates tiles, but with metadata only for their MS Virtual Earth.

[http://www.zoomify.com/ Zoomify] could be now used as tiling program for SuperOverlay in GoogleEarth with free [http://www.zoomify.com/express.htm ZoomifyerEZ] and generator [http://www.staremapy.cz/zoomifykml/ ZoomifyKML] (which I created as a part of my Master Thesis).

== What new functionality this project brings ==

Clean open-source implementation of tile structure export. Any application which uses GDAL library will easily be able to export files into a tile structure. Supplied utility gdal2tiles will convert [http://www.gdal.org/formats_list.html any supported file format] with georeference into tiles, it will also allow batch mode processing of files.

GDAL is strong library for processing maps and large raster files, including reprojection, so any already georeferenced maps could be easily converted for simple on-line publishing on a webserver without special server requirements (like MapServer is). Advantages of this approach are described in [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification].

Reader could be implemented later, which will (with support on the side of UNM MapServer) allow to access published tile structure using WMS standard, where UNM MapServer will act as a proxy.

== Who will use results of this project ==

Several organizations and individuals who handle processing of maps.

Institutions which will use the 'gdal2tiles' utility from this project, as I am cooperating with them:
* Moravian Library in Brno, Czech Republic
* Historical institute of Czech Academy of Sciences
* Czech National Library
* National Library of Scotland
* University of Connecticut Library (with their grant [http://www.rlg.org/en/page.php?Page_ID=20522#article1 "Building a Globally Distributed Historical Sheet Map Set of Austro-Hungarian Topographic Maps, 1877-1914"], cooperating with New York Public Library, University of Connecticut Library, and Library of the American Geographical Society. It is a grant about building a scalable workflow and toolset for map libraries to add cartographic content to the Web.)

== Student's Biography ==

My name is Klokan Petr Přidal, I have finished Master degree in Applied Informatics at [http://www.muni.cz/ Masaryk University in Brno], now I am in the first semester of postgraduate study of Cartography at [http://www.cvut.cz/ Czech Technical University in Prague]. My Master thesis subject was [http://is.muni.cz/th/39656/fi_m/annotation_english.txt "Processing and Digital Publishing of Historical Documents"] ([http://www.staremapy.cz/th.pdf PDF of thesis in Czech]).

I am familiar with open-source projects. I have experience with Linux/Solaris system administration. I like Python language, but I have also used other languages (C language, PHP).
I have supplied some patches into Gnumeric ([http://bugzilla.gnome.org/show_bug.cgi?id=330129 #330129], [http://bugzilla.gnome.org/show_bug.cgi?id=334257 #334257]).
I founded a http://mplayerosx.sf.net/ project and I also won a competition in programming application for Mac using http://dictosx.sf.net/ (Objective-C).
My primary desktop is Gnome and Linux, but I also use Mac, Windows and Solaris. I did programming for all of these platforms (mostly smaller projects).

I am interested in historical cartography, I have several presentations about old maps and free software. I made a czech web page about it at http://www.staremapy.cz/ and registered domain http://www.oldmapsonline.org/ (which is not in use yet).

My homepage with contact info: http://www.klokan.cz/.

GDAL2Tiles SoC 2007

2007-03-21T14:07:07Z

Wiki-Zabak: /* What new functionality this project brings */

Implementation of [http://www.gdal.org/gdal_drivertut.html Raster Driver for GDAL library], which will allow to write PNG/JPG tile structure as a new supported file-format. Generated tiles will contain also XML metadata, so after putting them on any webserver they could be used as data source for [http://earth.google.com/ Google Earth] (with [http://earth.google.com/kml/kml_21tutorial.html#superoverlays SuperOverlay KML]), [http://maps.google.com/ Google Maps], [http://www.openlayers.org/ OpenLayers], [http://www.worldkit.org/ WorldKit] and probably other viewers.

Tile structure will follow recommendation from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification OSGEO Tile Map Service Specification].
Simple utility 'gdal2tiles' for converting [http://www.gdal.org/formats_list.html supported file-formats] into new tile structure will be created.

Implemetation of the file format driver will allow to export map raster data into Google Earth, Google Maps and other online viewers from any of applications which use GDAL library.

Idea for this project was suggested by FrankW at [[GDAL SoC Ideas]].

== Implementation details ==

=== Tile Structure ===

* Metadata from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification] will be created as a main source of georeference (especially [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification#TileMap_Resource TileMap Resource XML]).
* KML supports only EPSG:4326 (latlong with WGS84 datum) projection, so reprojection is needed if source projection is different. How to turn off unneeded tiles by Regions in KML?
* It would be nice to support zoom levels of Google Maps tiles (this have to be checked, maybe from [http://mapnik.org/ Mapnik] project, example of [http://mapnik.org/tiling/oxford/ generated tiles]. More info is available here: http://michal.guerquin.com/googlemaps.html

=== GDAL Driver ===

* implements Create() function, so random access to format is possible (so for example direct warping of image into tiles will run).

=== gdal2tiles ===

* Command-line utility similar to existing [http://www.gdal.org/gdal_utilities.html GDAL utilities].
* Should be able to process files without proper georeference (to publish X-Ray images, vedute and other large bitmap files too).

== Possible future extension (not necessarily part of SoC project) ==

* Support for more viewers ([http://dev.live.com/virtualearth/sdk/ Microsoft Virtual Earth] with generator [http://research.microsoft.com/mapcruncher/ MapCruncher], [http://worldwind.arc.nasa.gov/ NASA World Wind] with generator [http://www.worldwindcentral.com/wiki/Dstile_howto DSTile], any other?)
* Simple GUI for 'gdal2tiles' under Windows/Linux/Mac done with Python (one of WxWidgets/TKinter/EasyDialogs).
* Implementation of GDAL Reader for generated tile structure (could be based on [https://svn.osgeo.org/svn/gdal/trunk/gdal/frmts/wcs/ gdal/frmts/wcs], thanks FrankW)
* [http://www.staremapy.cz/zoomify-analyza/ Zoomify Tile Structure] as alternative or modification of Zoomify with support for generated structure
* Maybe implementation of georeference for tilestructure by use of GML.

== Schedule ==

* May 28: Designing of file format, all XML Metadata (KML, TMS XML files, MS Virtual Earth, ...?) have to be known and tested with supported viewers, sample map is published.
* July 9: Alfa version of GDAL Driver for Tile Structure Writer is uploaded into official SVN.
* August 20: Final version of the driver as well as gdal2tiles utility are uploaded and reviewed.

== Competitors ==

Commercial applications like: [http://www.arc2earth.com/ Arc2Earth] have similar functionality. Several (mostly commercial) generators for Google Earth tiles were mentioned on http://www.ogleearth.com/.

Microsoft Research project [http://research.microsoft.com/mapcruncher/ MapCruncher] also generates tiles, but with metadata only for their MS Virtual Earth.

[http://www.zoomify.com/ Zoomify] could be now used as tiling program for SuperOverlay in GoogleEarth with free [http://www.zoomify.com/express.htm ZoomifyerEZ] and generator [http://www.staremapy.cz/zoomifykml/ ZoomifyKML] (which I made as part of my Master Thesis).

== What new functionality this project brings ==

Clean open-source implementation of tile structure export. Any application which uses GDAL library will easily be able to export files into a tile structure. Supplied utility gdal2tiles will convert [http://www.gdal.org/formats_list.html any supported file format] with georeference into tiles, it will also allow batch mode processing of files.

GDAL is strong library for processing maps and large raster files, including reprojection, so any already georeferenced maps could be easily converted for simple on-line publishing on a webserver without special server requirements (like MapServer is). Advantages of this approach are described in [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification].

Reader could be implemented later, which will (with support on the side of UNM MapServer) allow to access published tile structure using WMS standard, where UNM MapServer will act as a proxy.

== Who will use results of this project ==

Several organizations and individuals who handle processing of maps.

Institutions which will use the 'gdal2tiles' utility from this project, as I am cooperating with them:
* Moravian Library in Brno, Czech Republic
* Historical institute of Czech Academy of Sciences
* Czech National Library
* National Library of Scotland
* University of Connecticut Library (with their grant [http://www.rlg.org/en/page.php?Page_ID=20522#article1 "Building a Globally Distributed Historical Sheet Map Set of Austro-Hungarian Topographic Maps, 1877-1914"], cooperating with New York Public Library, University of Connecticut Library, and Library of the American Geographical Society. It is a grant about building a scalable workflow and toolset for map libraries to add cartographic content to the Web.)

== Student's Biography ==

My name is Klokan Petr Přidal, I have finished Master degree in Applied Informatics at [http://www.muni.cz/ Masaryk University in Brno], now I am in the first semester of postgraduate study of Cartography at [http://www.cvut.cz/ Czech Technical University in Prague]. My Master thesis subject was [http://is.muni.cz/th/39656/fi_m/annotation_english.txt "Processing and Digital Publishing of Historical Documents"] ([http://www.staremapy.cz/th.pdf PDF of thesis in Czech]).

I am familiar with open-source projects. I have experience with Linux/Solaris system administration. I like Python language, but I have also used other languages (C language, PHP).
I have supplied some patches into Gnumeric ([http://bugzilla.gnome.org/show_bug.cgi?id=330129 #330129], [http://bugzilla.gnome.org/show_bug.cgi?id=334257 #334257]).
I founded a http://mplayerosx.sf.net/ project and I also won a competition in programming application for Mac using http://dictosx.sf.net/ (Objective-C).
My primary desktop is Gnome and Linux, but I also use Mac, Windows and Solaris. I did programming for all of these platforms (mostly smaller projects).

I am interested in historical cartography, I have several presentations about old maps and free software. I made a czech web page about it at http://www.staremapy.cz/ and registered domain http://www.oldmapsonline.org/ (which is not in use yet).

My homepage with contact info: http://www.klokan.cz/.

GDAL2Tiles SoC 2007

2007-03-21T13:52:03Z

Wiki-Zabak: /* Student's Biography */

Implementation of [http://www.gdal.org/gdal_drivertut.html Raster Driver for GDAL library], which will allow to write PNG/JPG tile structure as a new supported file-format. Generated tiles will contain also XML metadata, so after putting them on any webserver they could be used as data source for [http://earth.google.com/ Google Earth] (with [http://earth.google.com/kml/kml_21tutorial.html#superoverlays SuperOverlay KML]), [http://maps.google.com/ Google Maps], [http://www.openlayers.org/ OpenLayers], [http://www.worldkit.org/ WorldKit] and probably other viewers.

Tile structure will follow recommendation from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification OSGEO Tile Map Service Specification].
Simple utility 'gdal2tiles' for converting [http://www.gdal.org/formats_list.html supported file-formats] into new tile structure will be created.

Implemetation of the file format driver will allow to export map raster data into Google Earth, Google Maps and other online viewers from any of applications which use GDAL library.

Idea for this project was suggested by FrankW at [[GDAL SoC Ideas]].

== Implementation details ==

=== Tile Structure ===

* Metadata from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification] will be created as a main source of georeference (especially [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification#TileMap_Resource TileMap Resource XML]).
* KML supports only EPSG:4326 (latlong with WGS84 datum) projection, so reprojection is needed if source projection is different. How to turn off unneeded tiles by Regions in KML?
* It would be nice to support zoom levels of Google Maps tiles (this have to be checked, maybe from [http://mapnik.org/ Mapnik] project, example of [http://mapnik.org/tiling/oxford/ generated tiles]. More info is available here: http://michal.guerquin.com/googlemaps.html

=== GDAL Driver ===

* implements Create() function, so random access to format is possible (so for example direct warping of image into tiles will run).

=== gdal2tiles ===

* Command-line utility similar to existing [http://www.gdal.org/gdal_utilities.html GDAL utilities].
* Should be able to process files without proper georeference (to publish X-Ray images, vedute and other large bitmap files too).

== Possible future extension (not necessarily part of SoC project) ==

* Support for more viewers ([http://dev.live.com/virtualearth/sdk/ Microsoft Virtual Earth] with generator [http://research.microsoft.com/mapcruncher/ MapCruncher], [http://worldwind.arc.nasa.gov/ NASA World Wind] with generator [http://www.worldwindcentral.com/wiki/Dstile_howto DSTile], any other?)
* Simple GUI for 'gdal2tiles' under Windows/Linux/Mac done with Python (one of WxWidgets/TKinter/EasyDialogs).
* Implementation of GDAL Reader for generated tile structure (could be based on [https://svn.osgeo.org/svn/gdal/trunk/gdal/frmts/wcs/ gdal/frmts/wcs], thanks FrankW)
* [http://www.staremapy.cz/zoomify-analyza/ Zoomify Tile Structure] as alternative or modification of Zoomify with support for generated structure
* Maybe implementation of georeference for tilestructure by use of GML.

== Schedule ==

* May 28: Designing of file format, all XML Metadata (KML, TMS XML files, MS Virtual Earth, ...?) have to be known and tested with supported viewers, sample map is published.
* July 9: Alfa version of GDAL Driver for Tile Structure Writer is uploaded into official SVN.
* August 20: Final version of the driver as well as gdal2tiles utility are uploaded and reviewed.

== Competitors ==

Commercial applications like: [http://www.arc2earth.com/ Arc2Earth] have similar functionality. Several (mostly commercial) generators for Google Earth tiles were mentioned on http://www.ogleearth.com/.

Microsoft Research project [http://research.microsoft.com/mapcruncher/ MapCruncher] also generates tiles, but with metadata only for their MS Virtual Earth.

[http://www.zoomify.com/ Zoomify] could be now used as tiling program for SuperOverlay in GoogleEarth with free [http://www.zoomify.com/express.htm ZoomifyerEZ] and generator [http://www.staremapy.cz/zoomifykml/ ZoomifyKML] (which I made as part of my Master Thesis).

== What new functionality this project brings ==

Clear open-source implementation of tile structure export. Any application which uses GDAL library could easily export files into tile structure. Supplied utility gdal2tiles will convert [http://www.gdal.org/formats_list.html any supported file format] with georeference into tiles, it will allow batch mode processing of files.

GDAL is strong library for processing maps and large raster files, including reprojection, so any already georeferenced maps could be easily converted for simple on-line publishing on a webserver without special server requirements (like MapServer is). Advantages of this attitude are written in [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification].

Reader could be implemented later, which will (with support on the side of UNM MapServer) allow to access published tile structure by WMS standard, if UNM MapServer will act as proxy.

== Who will use results of this project ==

Several organizations and individuals who handle processing of maps.

Institutions which will use the 'gdal2tiles' utility from this project, as I am cooperating with them:
* Moravian Library in Brno, Czech Republic
* Historical institute of Czech Academy of Sciences
* Czech National Library
* National Library of Scotland
* University of Connecticut Library (with their grant [http://www.rlg.org/en/page.php?Page_ID=20522#article1 "Building a Globally Distributed Historical Sheet Map Set of Austro-Hungarian Topographic Maps, 1877-1914"], cooperating with New York Public Library, University of Connecticut Library, and Library of the American Geographical Society. It is a grant about building a scalable workflow and toolset for map libraries to add cartographic content to the Web.)

== Student's Biography ==

My name is Klokan Petr Přidal, I have finished Master degree in Applied Informatics at [http://www.muni.cz/ Masaryk University in Brno], now I am in the first semester of postgraduate study of Cartography at [http://www.cvut.cz/ Czech Technical University in Prague]. My Master thesis subject was [http://is.muni.cz/th/39656/fi_m/annotation_english.txt "Processing and Digital Publishing of Historical Documents"] ([http://www.staremapy.cz/th.pdf PDF of thesis in Czech]).

I am familiar with open-source projects. I have experience with Linux/Solaris system administration. I like Python language, but I have also used other languages (C language, PHP).
I have supplied some patches into Gnumeric ([http://bugzilla.gnome.org/show_bug.cgi?id=330129 #330129], [http://bugzilla.gnome.org/show_bug.cgi?id=334257 #334257]).
I founded a http://mplayerosx.sf.net/ project and I also won a competition in programming application for Mac using http://dictosx.sf.net/ (Objective-C).
My primary desktop is Gnome and Linux, but I also use Mac, Windows and Solaris. I did programming for all of these platforms (mostly smaller projects).

I am interested in historical cartography, I have several presentations about old maps and free software. I made a czech web page about it at http://www.staremapy.cz/ and registered domain http://www.oldmapsonline.org/ (which is not in use yet).

My homepage with contact info: http://www.klokan.cz/.

GDAL2Tiles SoC 2007

2007-03-21T13:50:16Z

Wiki-Zabak: /* Who will use results of this project */

Implementation of [http://www.gdal.org/gdal_drivertut.html Raster Driver for GDAL library], which will allow to write PNG/JPG tile structure as a new supported file-format. Generated tiles will contain also XML metadata, so after putting them on any webserver they could be used as data source for [http://earth.google.com/ Google Earth] (with [http://earth.google.com/kml/kml_21tutorial.html#superoverlays SuperOverlay KML]), [http://maps.google.com/ Google Maps], [http://www.openlayers.org/ OpenLayers], [http://www.worldkit.org/ WorldKit] and probably other viewers.

Tile structure will follow recommendation from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification OSGEO Tile Map Service Specification].
Simple utility 'gdal2tiles' for converting [http://www.gdal.org/formats_list.html supported file-formats] into new tile structure will be created.

Implemetation of the file format driver will allow to export map raster data into Google Earth, Google Maps and other online viewers from any of applications which use GDAL library.

Idea for this project was suggested by FrankW at [[GDAL SoC Ideas]].

== Implementation details ==

=== Tile Structure ===

* Metadata from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification] will be created as a main source of georeference (especially [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification#TileMap_Resource TileMap Resource XML]).
* KML supports only EPSG:4326 (latlong with WGS84 datum) projection, so reprojection is needed if source projection is different. How to turn off unneeded tiles by Regions in KML?
* It would be nice to support zoom levels of Google Maps tiles (this have to be checked, maybe from [http://mapnik.org/ Mapnik] project, example of [http://mapnik.org/tiling/oxford/ generated tiles]. More info is available here: http://michal.guerquin.com/googlemaps.html

=== GDAL Driver ===

* implements Create() function, so random access to format is possible (so for example direct warping of image into tiles will run).

=== gdal2tiles ===

* Command-line utility similar to existing [http://www.gdal.org/gdal_utilities.html GDAL utilities].
* Should be able to process files without proper georeference (to publish X-Ray images, vedute and other large bitmap files too).

== Possible future extension (not necessarily part of SoC project) ==

* Support for more viewers ([http://dev.live.com/virtualearth/sdk/ Microsoft Virtual Earth] with generator [http://research.microsoft.com/mapcruncher/ MapCruncher], [http://worldwind.arc.nasa.gov/ NASA World Wind] with generator [http://www.worldwindcentral.com/wiki/Dstile_howto DSTile], any other?)
* Simple GUI for 'gdal2tiles' under Windows/Linux/Mac done with Python (one of WxWidgets/TKinter/EasyDialogs).
* Implementation of GDAL Reader for generated tile structure (could be based on [https://svn.osgeo.org/svn/gdal/trunk/gdal/frmts/wcs/ gdal/frmts/wcs], thanks FrankW)
* [http://www.staremapy.cz/zoomify-analyza/ Zoomify Tile Structure] as alternative or modification of Zoomify with support for generated structure
* Maybe implementation of georeference for tilestructure by use of GML.

== Schedule ==

* May 28: Designing of file format, all XML Metadata (KML, TMS XML files, MS Virtual Earth, ...?) have to be known and tested with supported viewers, sample map is published.
* July 9: Alfa version of GDAL Driver for Tile Structure Writer is uploaded into official SVN.
* August 20: Final version of the driver as well as gdal2tiles utility are uploaded and reviewed.

== Competitors ==

Commercial applications like: [http://www.arc2earth.com/ Arc2Earth] have similar functionality. Several (mostly commercial) generators for Google Earth tiles were mentioned on http://www.ogleearth.com/.

Microsoft Research project [http://research.microsoft.com/mapcruncher/ MapCruncher] also generates tiles, but with metadata only for their MS Virtual Earth.

[http://www.zoomify.com/ Zoomify] could be now used as tiling program for SuperOverlay in GoogleEarth with free [http://www.zoomify.com/express.htm ZoomifyerEZ] and generator [http://www.staremapy.cz/zoomifykml/ ZoomifyKML] (which I made as part of my Master Thesis).

== What new functionality this project brings ==

Clear open-source implementation of tile structure export. Any application which uses GDAL library could easily export files into tile structure. Supplied utility gdal2tiles will convert [http://www.gdal.org/formats_list.html any supported file format] with georeference into tiles, it will allow batch mode processing of files.

GDAL is strong library for processing maps and large raster files, including reprojection, so any already georeferenced maps could be easily converted for simple on-line publishing on a webserver without special server requirements (like MapServer is). Advantages of this attitude are written in [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification].

Reader could be implemented later, which will (with support on the side of UNM MapServer) allow to access published tile structure by WMS standard, if UNM MapServer will act as proxy.

== Who will use results of this project ==

Several organizations and individuals who handle processing of maps.

Institutions which will use the 'gdal2tiles' utility from this project, as I am cooperating with them:
* Moravian Library in Brno, Czech Republic
* Historical institute of Czech Academy of Sciences
* Czech National Library
* National Library of Scotland
* University of Connecticut Library (with their grant [http://www.rlg.org/en/page.php?Page_ID=20522#article1 "Building a Globally Distributed Historical Sheet Map Set of Austro-Hungarian Topographic Maps, 1877-1914"], cooperating with New York Public Library, University of Connecticut Library, and Library of the American Geographical Society. It is a grant about building a scalable workflow and toolset for map libraries to add cartographic content to the Web.)

== Student's Biography ==

My name is Klokan Petr Přidal, I have finished Master degree in Applied Informatics at [http://www.muni.cz/ Masaryk University in Brno], now I am in the first semester of postgraduate study of Cartography at [http://www.cvut.cz/ Czech Technical University in Prague]. My Master thesis subject was [http://is.muni.cz/th/39656/fi_m/annotation_english.txt "Processing and Digital Publishing of Historical Documents"] ([http://www.staremapy.cz/th.pdf PDF of thesis in Czech]).

I am familiar with open-source projects. I have experience with Linux/Solaris system administration. I like Python language, but I have also used other languages (C language, PHP).
I have supplied some patches into Gnumeric ([http://bugzilla.gnome.org/show_bug.cgi?id=330129 #330129], [http://bugzilla.gnome.org/show_bug.cgi?id=334257 #334257]).
I founded a http://mplayerosx.sf.net/ project with which I won a competition in programming application for Mac using http://dictosx.sf.net/ (Objective-C).
My primary desktop is Gnome and Linux, but I also use Mac, Windows and Solaris. I did programming for all of these platforms (mostly smaller projects).

I am interested in historical cartography, I have several presentations about old maps and free software. I made a czech web page about it at http://www.staremapy.cz/ and registered domain http://www.oldmapsonline.org/ (which is not in use yet).

My homepage with contact info: http://www.klokan.cz/.

GDAL2Tiles SoC 2007

2007-03-21T13:49:01Z

Wiki-Zabak: /* Student's Biography */

Implementation of [http://www.gdal.org/gdal_drivertut.html Raster Driver for GDAL library], which will allow to write PNG/JPG tile structure as a new supported file-format. Generated tiles will contain also XML metadata, so after putting them on any webserver they could be used as data source for [http://earth.google.com/ Google Earth] (with [http://earth.google.com/kml/kml_21tutorial.html#superoverlays SuperOverlay KML]), [http://maps.google.com/ Google Maps], [http://www.openlayers.org/ OpenLayers], [http://www.worldkit.org/ WorldKit] and probably other viewers.

Tile structure will follow recommendation from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification OSGEO Tile Map Service Specification].
Simple utility 'gdal2tiles' for converting [http://www.gdal.org/formats_list.html supported file-formats] into new tile structure will be created.

Implemetation of the file format driver will allow to export map raster data into Google Earth, Google Maps and other online viewers from any of applications which use GDAL library.

Idea for this project was suggested by FrankW at [[GDAL SoC Ideas]].

== Implementation details ==

=== Tile Structure ===

* Metadata from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification] will be created as a main source of georeference (especially [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification#TileMap_Resource TileMap Resource XML]).
* KML supports only EPSG:4326 (latlong with WGS84 datum) projection, so reprojection is needed if source projection is different. How to turn off unneeded tiles by Regions in KML?
* It would be nice to support zoom levels of Google Maps tiles (this have to be checked, maybe from [http://mapnik.org/ Mapnik] project, example of [http://mapnik.org/tiling/oxford/ generated tiles]. More info is available here: http://michal.guerquin.com/googlemaps.html

=== GDAL Driver ===

* implements Create() function, so random access to format is possible (so for example direct warping of image into tiles will run).

=== gdal2tiles ===

* Command-line utility similar to existing [http://www.gdal.org/gdal_utilities.html GDAL utilities].
* Should be able to process files without proper georeference (to publish X-Ray images, vedute and other large bitmap files too).

== Possible future extension (not necessarily part of SoC project) ==

* Support for more viewers ([http://dev.live.com/virtualearth/sdk/ Microsoft Virtual Earth] with generator [http://research.microsoft.com/mapcruncher/ MapCruncher], [http://worldwind.arc.nasa.gov/ NASA World Wind] with generator [http://www.worldwindcentral.com/wiki/Dstile_howto DSTile], any other?)
* Simple GUI for 'gdal2tiles' under Windows/Linux/Mac done with Python (one of WxWidgets/TKinter/EasyDialogs).
* Implementation of GDAL Reader for generated tile structure (could be based on [https://svn.osgeo.org/svn/gdal/trunk/gdal/frmts/wcs/ gdal/frmts/wcs], thanks FrankW)
* [http://www.staremapy.cz/zoomify-analyza/ Zoomify Tile Structure] as alternative or modification of Zoomify with support for generated structure
* Maybe implementation of georeference for tilestructure by use of GML.

== Schedule ==

* May 28: Designing of file format, all XML Metadata (KML, TMS XML files, MS Virtual Earth, ...?) have to be known and tested with supported viewers, sample map is published.
* July 9: Alfa version of GDAL Driver for Tile Structure Writer is uploaded into official SVN.
* August 20: Final version of the driver as well as gdal2tiles utility are uploaded and reviewed.

== Competitors ==

Commercial applications like: [http://www.arc2earth.com/ Arc2Earth] have similar functionality. Several (mostly commercial) generators for Google Earth tiles were mentioned on http://www.ogleearth.com/.

Microsoft Research project [http://research.microsoft.com/mapcruncher/ MapCruncher] also generates tiles, but with metadata only for their MS Virtual Earth.

[http://www.zoomify.com/ Zoomify] could be now used as tiling program for SuperOverlay in GoogleEarth with free [http://www.zoomify.com/express.htm ZoomifyerEZ] and generator [http://www.staremapy.cz/zoomifykml/ ZoomifyKML] (which I made as part of my Master Thesis).

== What new functionality this project brings ==

Clear open-source implementation of tile structure export. Any application which uses GDAL library could easily export files into tile structure. Supplied utility gdal2tiles will convert [http://www.gdal.org/formats_list.html any supported file format] with georeference into tiles, it will allow batch mode processing of files.

GDAL is strong library for processing maps and large raster files, including reprojection, so any already georeferenced maps could be easily converted for simple on-line publishing on a webserver without special server requirements (like MapServer is). Advantages of this attitude are written in [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification].

Reader could be implemented later, which will (with support on the side of UNM MapServer) allow to access published tile structure by WMS standard, if UNM MapServer will act as proxy.

== Who will use results of this project ==

Several organizations and individuals who handle processing of maps.

Institutions who will use the 'gdal2tiles' utility from this project, as I am cooperating with them:
* Moravian Library Brno
* Historical institute of Czech Academy of Sciences
* Czech National Library
* National Library of Scotland
* University of Connecticut Library (with their grant [http://www.rlg.org/en/page.php?Page_ID=20522#article1 "Building a Globally Distributed Historical Sheet Map Set of Austro-Hungarian Topographic Maps, 1877-1914"], cooperating with New York Public Library, University of Connecticut Library, and Library of the American Geographical Society. It is a grant about building a scalable workflow and toolset for map libraries to add cartographic content to the Web.)

== Student's Biography ==

My name is Klokan Petr Přidal, I have finished Master degree in Applied Informatics at [http://www.muni.cz/ Masaryk University in Brno], now I am in the first semester of postgraduate study of Cartography at [http://www.cvut.cz/ Czech Technical University in Prague]. My Master thesis subject was [http://is.muni.cz/th/39656/fi_m/annotation_english.txt "Processing and Digital Publishing of Historical Documents"] ([http://www.staremapy.cz/th.pdf PDF of thesis in Czech]).

I am familiar with open-source projects. I have experience with Linux/Solaris system administration. I like Python language, but I have also used other languages (C language, PHP).
I have supplied some patches into Gnumeric ([http://bugzilla.gnome.org/show_bug.cgi?id=330129 #330129], [http://bugzilla.gnome.org/show_bug.cgi?id=334257 #334257]).
I founded a http://mplayerosx.sf.net/ project with which I won a competition in programming application for Mac using http://dictosx.sf.net/ (Objective-C).
My primary desktop is Gnome and Linux, but I also use Mac, Windows and Solaris. I did programming for all of these platforms (mostly smaller projects).

I am interested in historical cartography, I have several presentations about old maps and free software. I made a czech web page about it at http://www.staremapy.cz/ and registered domain http://www.oldmapsonline.org/ (which is not in use yet).

My homepage with contact info: http://www.klokan.cz/.

GDAL2Tiles SoC 2007

2007-03-21T13:43:02Z

Wiki-Zabak: /* Possible future extension (not necessary part of SoC project) */

Implementation of [http://www.gdal.org/gdal_drivertut.html Raster Driver for GDAL library], which will allow to write PNG/JPG tile structure as a new supported file-format. Generated tiles will contain also XML metadata, so after putting them on any webserver they could be used as data source for [http://earth.google.com/ Google Earth] (with [http://earth.google.com/kml/kml_21tutorial.html#superoverlays SuperOverlay KML]), [http://maps.google.com/ Google Maps], [http://www.openlayers.org/ OpenLayers], [http://www.worldkit.org/ WorldKit] and probably other viewers.

Tile structure will follow recommendation from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification OSGEO Tile Map Service Specification].
Simple utility 'gdal2tiles' for converting [http://www.gdal.org/formats_list.html supported file-formats] into new tile structure will be created.

Implemetation of the file format driver will allow to export map raster data into Google Earth, Google Maps and other online viewers from any of applications which use GDAL library.

Idea for this project was suggested by FrankW at [[GDAL SoC Ideas]].

== Implementation details ==

=== Tile Structure ===

* Metadata from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification] will be created as a main source of georeference (especially [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification#TileMap_Resource TileMap Resource XML]).
* KML supports only EPSG:4326 (latlong with WGS84 datum) projection, so reprojection is needed if source projection is different. How to turn off unneeded tiles by Regions in KML?
* It would be nice to support zoom levels of Google Maps tiles (this have to be checked, maybe from [http://mapnik.org/ Mapnik] project, example of [http://mapnik.org/tiling/oxford/ generated tiles]. More info is available here: http://michal.guerquin.com/googlemaps.html

=== GDAL Driver ===

* implements Create() function, so random access to format is possible (so for example direct warping of image into tiles will run).

=== gdal2tiles ===

* Command-line utility similar to existing [http://www.gdal.org/gdal_utilities.html GDAL utilities].
* Should be able to process files without proper georeference (to publish X-Ray images, vedute and other large bitmap files too).

== Possible future extension (not necessarily part of SoC project) ==

* Support for more viewers ([http://dev.live.com/virtualearth/sdk/ Microsoft Virtual Earth] with generator [http://research.microsoft.com/mapcruncher/ MapCruncher], [http://worldwind.arc.nasa.gov/ NASA World Wind] with generator [http://www.worldwindcentral.com/wiki/Dstile_howto DSTile], any other?)
* Simple GUI for 'gdal2tiles' under Windows/Linux/Mac done with Python (one of WxWidgets/TKinter/EasyDialogs).
* Implementation of GDAL Reader for generated tile structure (could be based on [https://svn.osgeo.org/svn/gdal/trunk/gdal/frmts/wcs/ gdal/frmts/wcs], thanks FrankW)
* [http://www.staremapy.cz/zoomify-analyza/ Zoomify Tile Structure] as alternative or modification of Zoomify with support for generated structure
* Maybe implementation of georeference for tilestructure by use of GML.

== Schedule ==

* May 28: Designing of file format, all XML Metadata (KML, TMS XML files, MS Virtual Earth, ...?) have to be known and tested with supported viewers, sample map is published.
* July 9: Alfa version of GDAL Driver for Tile Structure Writer is uploaded into official SVN.
* August 20: Final version of the driver as well as gdal2tiles utility are uploaded and reviewed.

== Competitors ==

Commercial applications like: [http://www.arc2earth.com/ Arc2Earth] have similar functionality. Several (mostly commercial) generators for Google Earth tiles were mentioned on http://www.ogleearth.com/.

Microsoft Research project [http://research.microsoft.com/mapcruncher/ MapCruncher] also generates tiles, but with metadata only for their MS Virtual Earth.

[http://www.zoomify.com/ Zoomify] could be now used as tiling program for SuperOverlay in GoogleEarth with free [http://www.zoomify.com/express.htm ZoomifyerEZ] and generator [http://www.staremapy.cz/zoomifykml/ ZoomifyKML] (which I made as part of my Master Thesis).

== What new functionality this project brings ==

Clear open-source implementation of tile structure export. Any application which uses GDAL library could easily export files into tile structure. Supplied utility gdal2tiles will convert [http://www.gdal.org/formats_list.html any supported file format] with georeference into tiles, it will allow batch mode processing of files.

GDAL is strong library for processing maps and large raster files, including reprojection, so any already georeferenced maps could be easily converted for simple on-line publishing on a webserver without special server requirements (like MapServer is). Advantages of this attitude are written in [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification].

Reader could be implemented later, which will (with support on the side of UNM MapServer) allow to access published tile structure by WMS standard, if UNM MapServer will act as proxy.

== Who will use results of this project ==

Several organizations and individuals who handle processing of maps.

Institutions who will use the 'gdal2tiles' utility from this project, as I am cooperating with them:
* Moravian Library Brno
* Historical institute of Czech Academy of Sciences
* Czech National Library
* National Library of Scotland
* University of Connecticut Library (with their grant [http://www.rlg.org/en/page.php?Page_ID=20522#article1 "Building a Globally Distributed Historical Sheet Map Set of Austro-Hungarian Topographic Maps, 1877-1914"], cooperating with New York Public Library, University of Connecticut Library, and Library of the American Geographical Society. It is a grant about building a scalable workflow and toolset for map libraries to add cartographic content to the Web.)

== Student's Biography ==

My name is Klokan Petr Přidal, I have finished Master degree in Applied Informatics at [http://www.muni.cz/ Masaryk University in Brno], now I am in the first semester of postgraduate study of Cartography at [http://www.cvut.cz/ Czech Technical University in Prague]. My Master thesis subject was [http://is.muni.cz/th/39656/fi_m/annotation_english.txt "Processing and Digital Publishing of Historical Documents"] ([http://www.staremapy.cz/th.pdf PDF of thesis in Czech]).

I am familiar with open-source projects. I did Linux/Solaris administration. I like Python language, but I have used also other languages (C language, PHP).
I have supplied some patches into Gnumeric ([http://bugzilla.gnome.org/show_bug.cgi?id=330129 #330129], [http://bugzilla.gnome.org/show_bug.cgi?id=334257 #334257]).
I founded project http://mplayerosx.sf.net/ and I won a competition in programming application for Mac with http://dictosx.sf.net/ (Objective-C).
My primary desktop is Gnome and Linux, but I use also Mac, Windows and Solaris. I did programming for all of this platforms (mostly smaller projects).

I am interested in historical cartography, I have several presentations about old maps and free software. I made a czech web page about it at http://www.staremapy.cz/ and I registered domain http://www.oldmapsonline.org/ (which is not in use yet).

My homepage with contact info: http://www.klokan.cz/.

GDAL2Tiles SoC 2007

2007-03-21T13:41:37Z

Wiki-Zabak: /* Implementation details */

Implementation of [http://www.gdal.org/gdal_drivertut.html Raster Driver for GDAL library], which will allow to write PNG/JPG tile structure as a new supported file-format. Generated tiles will contain also XML metadata, so after putting them on any webserver they could be used as data source for [http://earth.google.com/ Google Earth] (with [http://earth.google.com/kml/kml_21tutorial.html#superoverlays SuperOverlay KML]), [http://maps.google.com/ Google Maps], [http://www.openlayers.org/ OpenLayers], [http://www.worldkit.org/ WorldKit] and probably other viewers.

Tile structure will follow recommendation from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification OSGEO Tile Map Service Specification].
Simple utility 'gdal2tiles' for converting [http://www.gdal.org/formats_list.html supported file-formats] into new tile structure will be created.

Implemetation of the file format driver will allow to export map raster data into Google Earth, Google Maps and other online viewers from any of applications which use GDAL library.

Idea for this project was suggested by FrankW at [[GDAL SoC Ideas]].

== Implementation details ==

=== Tile Structure ===

* Metadata from [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification] will be created as a main source of georeference (especially [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification#TileMap_Resource TileMap Resource XML]).
* KML supports only EPSG:4326 (latlong with WGS84 datum) projection, so reprojection is needed if source projection is different. How to turn off unneeded tiles by Regions in KML?
* It would be nice to support zoom levels of Google Maps tiles (this have to be checked, maybe from [http://mapnik.org/ Mapnik] project, example of [http://mapnik.org/tiling/oxford/ generated tiles]. More info is available here: http://michal.guerquin.com/googlemaps.html

=== GDAL Driver ===

* implements Create() function, so random access to format is possible (so for example direct warping of image into tiles will run).

=== gdal2tiles ===

* Command-line utility similar to existing [http://www.gdal.org/gdal_utilities.html GDAL utilities].
* Should be able to process files without proper georeference (to publish X-Ray images, vedute and other large bitmap files too).

== Possible future extension (not necessary part of SoC project) ==

* Support for more viewers ([http://dev.live.com/virtualearth/sdk/ Microsoft Virtual Earth] with generator [http://research.microsoft.com/mapcruncher/ MapCruncher], [http://worldwind.arc.nasa.gov/ NASA World Wind] with generator [http://www.worldwindcentral.com/wiki/Dstile_howto DSTile], any other?)
* Simple GUI for 'gdal2tiles' under Windows/Linux/Mac done with Python (one of WxWidgets/TKinter/EasyDialogs).
* Implementation of GDAL Reader for generated tile structure (could be based on [https://svn.osgeo.org/svn/gdal/trunk/gdal/frmts/wcs/ gdal/frmts/wcs], thanks FrankW)
* [http://www.staremapy.cz/zoomify-analyza/ Zoomify Tile Structure] as alternative or modification of Zoomify with support for generated structure
* Maybe implementation of georeference for tilestructure by use of GML.

== Schedule ==

* May 28: Designing of file format, all XML Metadata (KML, TMS XML files, MS Virtual Earth, ...?) have to be known and tested with supported viewers, sample map is published.
* July 9: Alfa version of GDAL Driver for Tile Structure Writer is uploaded into official SVN.
* August 20: Final version of the driver as well as gdal2tiles utility are uploaded and reviewed.

== Competitors ==

Commercial applications like: [http://www.arc2earth.com/ Arc2Earth] have similar functionality. Several (mostly commercial) generators for Google Earth tiles were mentioned on http://www.ogleearth.com/.

Microsoft Research project [http://research.microsoft.com/mapcruncher/ MapCruncher] also generates tiles, but with metadata only for their MS Virtual Earth.

[http://www.zoomify.com/ Zoomify] could be now used as tiling program for SuperOverlay in GoogleEarth with free [http://www.zoomify.com/express.htm ZoomifyerEZ] and generator [http://www.staremapy.cz/zoomifykml/ ZoomifyKML] (which I made as part of my Master Thesis).

== What new functionality this project brings ==

Clear open-source implementation of tile structure export. Any application which uses GDAL library could easily export files into tile structure. Supplied utility gdal2tiles will convert [http://www.gdal.org/formats_list.html any supported file format] with georeference into tiles, it will allow batch mode processing of files.

GDAL is strong library for processing maps and large raster files, including reprojection, so any already georeferenced maps could be easily converted for simple on-line publishing on a webserver without special server requirements (like MapServer is). Advantages of this attitude are written in [http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification TMS Specification].

Reader could be implemented later, which will (with support on the side of UNM MapServer) allow to access published tile structure by WMS standard, if UNM MapServer will act as proxy.

== Who will use results of this project ==

Several organizations and individuals who handle processing of maps.

Institutions who will use the 'gdal2tiles' utility from this project, as I am cooperating with them:
* Moravian Library Brno
* Historical institute of Czech Academy of Sciences
* Czech National Library
* National Library of Scotland
* University of Connecticut Library (with their grant [http://www.rlg.org/en/page.php?Page_ID=20522#article1 "Building a Globally Distributed Historical Sheet Map Set of Austro-Hungarian Topographic Maps, 1877-1914"], cooperating with New York Public Library, University of Connecticut Library, and Library of the American Geographical Society. It is a grant about building a scalable workflow and toolset for map libraries to add cartographic content to the Web.)

== Student's Biography ==

My name is Klokan Petr Přidal, I have finished Master degree in Applied Informatics at [http://www.muni.cz/ Masaryk University in Brno], now I am in the first semester of postgraduate study of Cartography at [http://www.cvut.cz/ Czech Technical University in Prague]. My Master thesis subject was [http://is.muni.cz/th/39656/fi_m/annotation_english.txt "Processing and Digital Publishing of Historical Documents"] ([http://www.staremapy.cz/th.pdf PDF of thesis in Czech]).

I am familiar with open-source projects. I did Linux/Solaris administration. I like Python language, but I have used also other languages (C language, PHP).
I have supplied some patches into Gnumeric ([http://bugzilla.gnome.org/show_bug.cgi?id=330129 #330129], [http://bugzilla.gnome.org/show_bug.cgi?id=334257 #334257]).
I founded project http://mplayerosx.sf.net/ and I won a competition in programming application for Mac with http://dictosx.sf.net/ (Objective-C).
My primary desktop is Gnome and Linux, but I use also Mac, Windows and Solaris. I did programming for all of this platforms (mostly smaller projects).

I am interested in historical cartography, I have several presentations about old maps and free software. I made a czech web page about it at http://www.staremapy.cz/ and I registered domain http://www.oldmapsonline.org/ (which is not in use yet).

My homepage with contact info: http://www.klokan.cz/.