nyuuzyou/wikis huggingface dataset:
The definition of Open in OGC, OSGeo and OSM

Versión en español: La definición de Abierto en OGC, OSGeo y OSM
This page is the sandbox for a presentation to be given at FOSS4G 2011, the 78th OGC TC Meeting and SOTM 2011, all taking place in Denver Colorado in September 2011. Read the abstract submission.
The definition of Open in OGC, OSGeo and OSM
Presenter: Arnulf Benno Christl
 Building: Cape Town International Convention Centre
 Room: Makuya Room (Room 1.6)
 Date: 2008-10-02 08:30 AM – 10:00 AM
 Last modified: 2008-09-09
== Abstract ==
The presentation gives an introduction to the three communities in the spatial software realm and how they relate; The Open Geospatial Consortium (OGC), the Open Source Geospatial Foundation (OSGeo) and the OpenStreetMap project (OSM).
== History ==
The Open Source GIS History sums up some milestones.
=== OGC ===
Reading OGC's history shows that it was initiated by the GRASS People who started off with a foundation, the OGF. Read the long version if you want to get into all the details.
=== OSGeo ===
Well, our History is legacy, but not much of it was documented from a retrospective point of view. There might be people interested in years to come. Scan the archives for all those nasty, soothing, destructive, constructive, ignorant, and informed mails following up the somewhat inauspicious start of the MapServer Foundation. It is all there. Just add some links.
=== OSM ===
OSM's history is the image of a map. Not a map actually but the Londonposter.
OSM has a one-liner as mission statement:
* OpenStreetMap is a free editable map of the whole world. It is made by people like you.
And an abstract:
* OpenStreetMap allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth.
== Openness ==
The term Open is somewhat ambiguous. Therefore it might make sense to look into which type of Openness is the one that applies to each of the three. 
In a nutshell OGC is the place where many collaborate on creating standards, OSGeo is the place where many collaborate on implementing software and OpenStreetMap is the place where many collaborate on creating maps. The common ground is that all three are focused on spatially related software and data and all have a clear (though somewhat different) understanding of the term "Open".
=== Open in OGC ===
* All (with the corresponding financial background [1]) can participate.
* All standards can be used royalty free (without cost) by anybody. 
* All can comment on the standards during the public (open) discussion period.
[1] As of the FOSS4G 2008 conference a Memorandum of Understanding between OGC and OSGeo includes OGC individual member status for a selection of nominated OSGeo members.
=== Open in OSGeo ===
* All can participate
* All software of this organization must have licenses approved by the Open Source Initiative.
* All processes in this organization are open to public scrutiny - the only exceptions being related to privacy.
=== Open in OpenStreetMap ===
* All can participate
* All can create maps
* All can use and get the maps
Thijs van Menen

De naam is Thijs van Menen. Werk bij Rijkswaterstaat en ben verantwoordelijk voor GeoServices.
GeoServices is de overkoepelende naam voor het open source framework voor webgis. GeoServices
levert o.a. OGC services, MapViewer (RWS eigen webGIS viewer)(zo wel generiek als maatwerk viewers), metadatamaker
(RWS eigen "open source" product) en Metadatazoeker. Of te wel een Spatial Data Infrastructure (SDI).
Binnen GeoServices maken we o.a. gebruik van MapServer, GeoServer, MapFish, ExtJS en Open Layers.
Ik ben geen ontwikkelaar, maar wel een groot voorstander van open source for geo en probeer dat als senior adviseur
bij Rijkswaterstaat uit te dragen.
Attended FOSS4G in 2007,2008,2011.
thijsvanmenen@hotmail.com
06-20396282
Category:Nederlands
ThinkGeo

=== Open Source Semantic GIS toolkit ===
thinkGeo is a branch of ThinkLab. After years of development by a close-knit core at the Ecoinformatics Collaboratory of the Gund Institute, University of Vermont, we are looking for a broader community to use and develop thinkGeo.
=== Source Code ===
thinkGeo consists of the foundational plugins of ThinkLab (core, corescience, geospace, time, modelling), and is currently housed in the 
thinkgeo branch of the ThinkLab SourceForge Repository.
=== OSGeo Labs Criteria ===
# License: thinkGeo is open source software, written in platform-independent Java. Terms of use are defined by the General Public License, version 3 or any later version.
# Encumbrances: thinkGeo is willing to keep code clear of encumbrances.
# Geospatial; thinkGeo links semantic content defined in ontologies with geospatial web resources. Therefore thinkGeo is a geospatial application.
# OSGeo project: thinkGeo hopes to become a graduated OSGeo project.
=== Contact Information ===
*Mailing List: We are sharing the [aries-project google groups] mailing list. 
*IRC channel: We are sharing a [freenode] channel with the ARIES project, #aries.
*Discussion page: you may post questions or comments related to the thinkgeo wiki itself directly on the discussion page of this wiki. Anyone watching this page will get an e-mail notification of your post.
*Point of contact: Contact Tara Athan for more information.
=== Interested People ===
Tara Athan (project champion)
Third VisCom Meeting

=== Minutes ===
The minutes for this meeting can be found at Third_VisCom_Meeting_Minutes.
=== Date and Time ===
May 11th, 2006, at 15:00 UTC [worldclock link]] (8:00am PST)
The meeting will take place on IRC at #osgeo and as a conference call
* US and Canada: 877-326-2337
* International: 303-928 3232
* id code: 3206046#
=== Agenda ===
* rollcall (chair)
* update on current membership, from last mtg (mpg)
* Do something about the VisComTODO page. (mpg)
* Marketing Subteam status (Peter)
** Press Release Process
** Where 2.0
** Event Strategy
** Logos and Banners
** OSGeo Boilerplate
* Library Subteam status (mpg)
* Outreach Subteam status (Dave)
* Logo contest results, discussion of slogans - see motto_discussion (Daniel?)
* get us a nice magazine article? (mpg)
* There is a bug tracker via CollabNet - is anyone using it? do we want/need to? (mpg}
* Can we move the Event List to its own page (from the main VisComm page)? (mpg)
* (from the TODO list) prepare Web page contents about "What OSGeo is doing" to attract sponsors. This is related to Fundraising. Then forward this material to WebCom (arnulf?)
* (from the TODO list) Setup feedback mechanism for web site. I suppose this ought to be creating artifacts in the bug system, but a feedback email list might be more appropriate. (arnulf?)
* (from the TODO list) Recruit more members on discuss list. What skills are most valuable? (arnulf?)
* (from the TODO list) Do we have a place to put these kind of outreach ideas? Couldn't find one on the wiki (TMitchell)
* (from the TODO list) Consider responding to UK open source for non-profits survey (TMitchell)
* Identify action items (chair)
* Schedule next meeting (chair)
Category:Marketing
Third VisCom Meeting Minutes

=== Logistics ===
The third meeting was held May 11th, 2006. The agenda can be found at Third_VisCom_Meeting.
The meeting was held via conf call, lasting a bit over an hour. mpg ran the meeting, as Arnulf was again stuck on a train somewhere.
Attendees: Tyler, mpg, Daniel, Peter, Chris, Alain
=== Motto ===
For Where 2.0, we need an answer right away:
* we will just use "[The] Open Source Geospatial Foundation" as an interim motto
* Peter to use Autodesk resources to help with this
For long-term, we will do some winnowing and voting:
* VisCom folk get 5 unique votes, to get list down to managable size (top 10 or so)
* list gets approved by board
* general membership votes (one vote each)
* Daniel the VoteMaster to coordinate all this
=== Committee Membership ===
Agreed the list on the main VisCom page is now correct.
(Chris and Tyler formed some sort of virtual voting bloc...)
From here on, new members must be voted in, etc, etc.
=== The TODO List Page ===
The old TODO page is now obsolete:
* items 1-3 need Arnulf; mpg will fold into agenda for next meeting
* items 4-5 are now obsolete and can just slip quietly away into the good night, per Tyler
=== Marketing Team ===
Peter now has a page up describing the Press Release Process. Template is underway, which will make the process seem less daunting to potential submitters.
Marketing Team otherwise completely occupied with Where stuff, which deserves a separate heading.
=== Where 2.0 ===
Lots of talk about the Where show: this is sort of turning into OSGeo's launch event...
Peter is meta-coordinator for this, and will post notes separately.
Highlights I noted:
* Tyler volunteered herd together "project" handouts, including template for same
* the BOF idea is in, the Hospitality Suite idea is out (note we did not discuss BOF owner, speakers -- mpg to put on next agenda)
* press conference idea is in
** suggested we do a "developer roundtable" with 3-4 folk discussing various Issues
** suggested we get an exec-level and/or business type in there too
** mpg to coordinate for now (though he may not be attending...)
** Peter to get mpg whatever details we have on this
** cholmes also interested in this
=== Library Team ===
mpg reports good contributions already, more in pipeline.
=== Press Coverage ===
mpg would like to see an article about us published in a dead-tree magazine -- preferably written by the magazine, but by us if we had to. mpg will own this in the background. Chris registered some degree of interest here also.
=== Bug Tracking ===
Agreed we should use CollabNet's bug tracking mechanism.
We will use this to review "open issues" as part of our regular agenda; Daniel to provide us some custom queries and whatnot.
=== Next Meetings ===
We will meet next Thursday (May 18th) for a special session dedicated to Where issues.
* agenda here Fourth_VisCom_Meeting
Our next regular meeting will be in two weeks, same time and number and channel.
* agenda here Fifth_VisCom_Meeting.
Thirteenth VisCom Meeting

=== Date and Time ===
The meeting was October 26th, 2006. Minutes are [here].
=== Standing Agenda ===
# Assign scribe
# Roll call
# review of previous meeting's minutes and tasks
# New Business (below)
# Review action items
# Set next meeting date
# Adjourn
=== New Business ===
* intro of Nathalie from Autodesk
* monthly report/email
** status, current efforts, e.g. logo work
** recent press releases
** upcoming shows
** current stats / hit counts
** etc
* Autodesk U. event status
* Prioritized list of events for '07 (first pass from Lisa below)
** Map World Forum	http://www.mapworldforum.org/	January 22-25	Hyderabad, India
** Third Kuwait International GIS Conference and Exhibition http://www.gulfgis.com/	Feb 19-21 Kuwait
** OS GIS User's Meeting	http://www.sigte.udg.es/jornadassiglibre/	March 5-7	Girona, Spain
** A of American Geographers	http://www.aag.org/annualmeetings/SF2007/index.cfm	April 17-21	San Francisco
** ISDE	http://www.isde5.org/	June 5-8	San Francisco
** WHERE 2.0	http://conferences.oreillynet.com/	June 19-20	San Jose
** Int. Synposium on Remote Sensing of Environment	http://www.cenat.ac.cr/simposio/index.htm	June 25-29	San Jose, Costa Rica
** OSCon	http://conferences.oreillynet.com/os2006/	July 23-27	Portland
** FOSS4G	http://www.foss4g2006.org/	TBD	TBD
** URISA	http://www.urisa.org/	Aug 20-23	Washington DC
* Events in German speaking countries
** FOSSGIS March Berlin, Germany
** CORP May 20.-23. Vienna, Austria
** AGIT July 4.-6. Salzburg, Austria
** Intergeo 2007 Leipzig, September 25-27 Germany
** KomCom (Germany, there are four separate events Nord, Süd, NRW, Ost in Hannover, 27-28. Februar, Karlsruhe, 8.-9. Mai, Essen, 18.19. September, Leipzig, 13.-14. November. Coordinated by Local Chapter and Autodesk Germany)
** Several more we are still evaluating: Open source meets business, LinuxTag, Linux World, Linux Kongress, GeoNet Leipzig
* Logo design review
Category:Marketing
Thirteenth VisCom Meeting Minutes

Attending: mpg, tyler, LisaL, Arnulf/Seven, Nathalie
* discussions of current logo versions
** work well underway, now finalizing final base logo style and colors
** (for details, see mailing list or [here])
* intro of Nathalie from Autodesk 
* discussion of Autodesk U. event status 
** Autodesk helping out here
** Tyler likely to attend
** free passes being distributed, booth coverage, etc
* mpg is going to start doing a monthly report/email from VisCom to the general membership
* discussion of event planning
** Arnulf to be event list editor
** policy guidelines we're thinking of:
*** 1st axis: there are Big Tier events (FOSS4G, Where, OSCon, etc) and Small Tier events (local community groups, niche GIS segments, etc)
*** 2nd axis: free/expensive -- some events we will get sponsorship for, others OSGeo will cover directly
*** 3rd axis: target domain (geographic region, specialty GIS groups, etc)
*** 4th axis: return on investment
** we will continue to ponder all this
** mpg to get summary thoughts down on the wiki
This will be the new Page

Grupo de trabalho: Sistemas de Coordenadas de Portugal para FOSS4G
=== Sistemas de Coordenadas ===
*Conversões de coordenadas geográficas e cartográficas com o programa PROJ.4 - Página Pessoal do Professor José Alberto Gonçalves
==== Software ====
*PROJ.4 - Cartographic Projections Library
Tiled imagery layer

= Multi-Res Tiled Imagery =
This is a page to create a mapfile to stick in front of Ka-Map's tile.php to cache tiles for a multi-resolution dataset to grab via wms the best resolution data possible for any particular area. Please add in a layer for any imagery you feel is missing.
 MAP
 EXTENT -180 -90 180 90
 IMAGECOLOR 255 255 255
 IMAGETYPE png
 SIZE 500 500
 STATUS ON
 UNITS DD
 NAME "World Demo"
 
 OUTPUTFORMAT
 NAME png
 MIMETYPE image/png
 DRIVER GD/PNG
 EXTENSION png
 IMAGEMODE PC256
 TRANSPARENT FALSE
 END
 OUTPUTFORMAT
 NAME "jpeg"
 MIMETYPE "image/jpeg"
 DRIVER "GD/JPEG"
 EXTENSION "jpg"
 IMAGEMODE RGB
 TRANSPARENT FALSE
 END
 
 PROJECTION
 "init=epsg:4326"
 END
 LEGEND
 IMAGECOLOR 255 255 255
 KEYSIZE 18 12
 KEYSPACING 5 5
 LABEL
 SIZE MEDIUM
 TYPE BITMAP
 BUFFER 0
 COLOR 0 0 89
 FORCE FALSE
 MINDISTANCE -1
 MINFEATURESIZE -1
 OFFSET 0 0
 PARTIALS TRUE
 END
 POSITION LL
 STATUS ON
 END
 
 QUERYMAP
 COLOR 255 0 0
 SIZE -1 -1
 STATUS OFF
 STYLE HILITE
 END
 
 REFERENCE
 COLOR -1 -1 -1
 EXTENT -180 -90 180 90
 IMAGE "../htdocs/images/world_key.png"
 OUTLINECOLOR 255 0 0
 SIZE 240 120
 STATUS ON
 MARKER 0
 MARKERSIZE 0
 MINBOXSIZE 3
 MAXBOXSIZE 0
 END
 
 SCALEBAR
 BACKGROUNDCOLOR 0 0 0
 COLOR 255 255 255
 IMAGECOLOR 255 255 255
 INTERVALS 5
 LABEL
 SIZE SMALL
 TYPE BITMAP
 BUFFER 0
 COLOR 0 0 0
 FORCE FALSE
 MINDISTANCE -1
 MINFEATURESIZE -1
 OFFSET 0 0
 PARTIALS TRUE
 POSITION CR
 END
 OUTLINECOLOR 0 0 0
 POSITION LL
 SIZE 250 3
 STATUS ON
 STYLE 0
 TRANSPARENT TRUE
 UNITS KILOMETERS
 END
 
 WEB
 IMAGEPATH "/tmp/"
 IMAGEURL "/tmp/"
 METADATA
 "original_projection" "init=epsg:4326"
 "original_extents" "-180,-90,180,90"
 END
 QUERYFORMAT text/html
 END
 LAYER
 CONNECTION "http://wms.jpl.nasa.gov/wms.cgi?"
 CONNECTIONTYPE WMS
 METADATA
 "wms_srs" "EPSG:4326"
 "wms_onlineresource" "http://wms.jpl.nasa.gov/wms.cgi?"
 "wms_name" "BMNG"
 "wms_formatlist" "image/png,image/gif,image/jpeg,image/wbmp"
 "wms_format" "image/jpeg"
 "wms_server_version" "1.1.1"
 "wms_title" "BMNG"
 END
 NAME "BMNG"
 GROUP "imagery"
 SIZEUNITS PIXELS
 STATUS ON
 MINSCALE 1000000
 TOLERANCE 0
 TOLERANCEUNITS PIXELS
 TYPE RASTER 
 END
 LAYER
 CONNECTION "http://wms.jpl.nasa.gov/wms.cgi?"
 CONNECTIONTYPE WMS
 METADATA
 "wms_srs" "EPSG:4326"
 "wms_onlineresource" "http://wms.jpl.nasa.gov/wms.cgi?"
 "wms_name" "modis,global_mosaic"
 "wms_formatlist" "image/png,image/gif,image/jpeg,image/wbmp"
 "wms_format" "image/jpeg"
 "wms_server_version" "1.1.1"
 "wms_title" "NASA"
 END
 NAME "NASA"
 GROUP "imagery"
 SIZEUNITS PIXELS
 STATUS ON
 MAXSCALE 1000000
 MINSCALE 24000
 TOLERANCE 0
 TOLERANCEUNITS PIXELS
 TYPE RASTER 
 END
 LAYER
 PROJECTION "init=EPSG:4326"
 NAME "URBANAREAMPLS"
 TYPE RASTER
 STATUS ON
 MAXSCALE 24000
 MINSCALE 800
 CONNECTION "http://gisdata.usgs.gov/servlet/com.esri.wms.Esrimap?WMTVER=1.1.1&ServiceName=USGS_EDC_Ortho_Urban&layers=Apr_2004_0.3m_Color_Minneapolis-StPaul_index&format=png"
 CONNECTIONTYPE WMS
 METADATA
 "wms_srs" "EPSG:4326"
 "wms_title" "Apr_2004_0.3m_Color_Minneapolis-StPaul_index"
 "wms_connectiontimeout" "1000"
 END
 END 
 END
Category:Tiling
Tiling

This page belongs to the tiling mailinglist which has been initiated after the Foss4g 2010 BoF on tiling. At the BoF it became clear that there is a need for more advanced cache management in the various tile-cache programs. 
== Problems ==
* Tiling produces too many files to handle
* There is need for usage-statistics on tiles
* A smarter way for seeding is needed
* A smarter way for deleting tiles is needed
* GetFeatureInfo is needed (mainly bypass the requst to the backend)
== Possible solutions ==
GeoWebCache uses a paging algorithm to manage the statistics of the tiles. Tiles are grouped in page-files and the deeper the zoomlevel the more files are in the page file. Usage statistics are handled at the page-file level, not per tile.
OSM uses special PNG files where 8x8 tiles are grouped with a special header to locate the individual tiles. This way the number of files are reduced. It is not clear of 8x8 is optimal.
Empty/single color tiles should be recognised and linked to one file. Mapproxy uses a color lookup algorithm to check if there is only one color per tile.
Use polygons as input for tileseeding.
To optimise I/O on the mapserver, use depth traversing tileseeding.
Time In GIS

This page of the OSGeo Wiki contains some tidbits of information about represting time or working with time in geographic information systems. (This is also known as temporal GIS.) This is not a comprehensive coverage of the topic. It is a collection and summary of responses to a question about temporal GIS that I posted to the OSGeo Discussion Mailing List and Geowanking Mailing List.
The Sunburned Surveyor
==Using Linear Referencing To Work With Time In GIS==
You can use built-in linear referencing functionality in geographic information systems or relational databases as a "hack" to work with time. A line or other linear geometry is used to represent a "timeline".
Doctor Shih-Lung Shaw (University of Tennessee) and Doctor Hongbo Yu (Oklahoma State) have done some interesting work that use this method to work with events in temporal gis. 
PostGIS and GRASS contain this linear referencing functionality:
http://postgis.refractions.net/docs/ch06.html#id3060376
http://grass.osgeo.org/grass63/manuals/html63_user/vectorintro.html
==More Than Just Events==
Working with time in GIS can involve more than just the concept of an "event" or a single instant in time. It can also involve a chain of events or "history" of an object or feature modeled in a GIS. (For example, a survey monument can be "Set", "Recovered", "Disturbed", and "Destroyed". These are all events. A single survey monument could "own" all of these events, which would form its history.)
Working with time in GIS can also allow us to understand the evolution of objects for features modeled in a GIS. (For example, a railroad can become a pedestrian trail.) This deals with the lineage or heritage of an object or feature. It stores information about what a feature was created from and what it eventually became or evolved into.
This issue was dealt with on the Great Britain Historical GIS:
http://www.visionofbritain.org.uk
http://www.port.ac.uk/research/gbhgis/aboutthegbhistoricalgis/database/
==Additional Material==
ISO 19108 - Temporal Schema
Time in Geographic Information Systems (A Book Authored By Gail Langran 1992)
Representations Of Space and Time (A Book Authored By Donna Peuguet)
==Links==
Talk On Time In GIS At FOSS4G In 2006
http://joda-time.sourceforge.net/ Joda (Java Time Programming Library)
==Examples==
This is a list of examples of combining time and spatial information:
Time & Space Map For Earthquakes
Semi-Functional Application Working With Time, Space, and Biological Observations
== Cool Stuff==
AJAX Powered Timeline
==OGC Stuff==
The OGC has some papers that deal with time in GIS. Take a look at OWS 4 WFS Temporal Investigation (06-154) and Temporal Standard Recommendations (06-022r1). You can download PDFs of these two (2) documents here.
==Brainstorming==
Temporal Query Operators
==Credits and Thanks==
I'd like to thank the following OSGeo members and Geowanking Subscribers for there responses to my question about time in GIS.
Ian Turton
Martin Weis
Vasillis Vlastaras
Brent Fraser
Mikel Maron
Brent Pedersen
Robert Brundage
Grant Pezeshki
ToT FOSSGIS07 Participants

; Participants came from all over Indonesia
* ADIWAN F. ARITENANG - BBPT
* ADI WIDYANTO - CUSO (Canadian Volunteers Organization)
* AGUS WIBOWO - TISDA-BPPT (Agency for the Assessment and Application of Technology)
* AMRULLAH - (USAID Environmental Services Program)
* DARMANTO - ASPPUK (Association for Woman in Small Business Assistance)
* DIAN OKTIARI - BMG(Meteorological and Geophysical Agency), Earthquake Engineering and Tsunami Division
* FARID AZIS - PT. Multi System Solution
* Frans Thamura - JUG - (Meruvian Foundation) - (Prima Integrasi, PT) 
* HARIYANTO - RISTEK
* HENDRA MICHAEL AQUAN - Jakarta Green Monster
* INGGIT LOLITA SARI - |LAPAN 
* LINDA LESTARI - BAKORNAS PB
* MUHAMAD JAFAR ELLY - |LIPI- |Research Center for Oceanography
* ICHWAN SUTARDI - Provinsi NTB
* NOVIANTI - RISTEK
* NURHAYATI MASTHURAH - Research Center for Informatics-LIPI
* NURYANI - Research Center for Informatics - LIPI
* RACHMAWAN ADI LAKSONO - | Purwodadi Botanical Garden-LIPI
* SAPTO NUGRUHO - BPDP-BPPT
* SUKIRSTIYANTI - | LIPI
* TUTUT USAHENI - | Universitas Riau
* WARDIYONO - Airputih Foundation
* YUSI TYRONI MURSITYO - Universitas Brawijaya - Math/Computer Science FMIPA Universitas Brawijaya
* YUKI INSTIANTO - BPPT
* FIRMAN - ITB
* UTAMI R. KADARWATI - DKP
; Organizers
* KEMAL PRIHATMAN - Asst. to Deputy for Development and Utilization of
Information Technology, RISTEK
* AGUS SEDIADI - Head of Cooperation for IT Institution, RISTEK
* ALDI HARYADI - Head of Sub Division for Governmental Institution, RISTEK
* DR. ALVIN B. MARCELO, - MANAGER, IOSN ASEAN+3
* DR. FRANCIS E. SARMIENTO III - PROJECT OFFICER, IOSN ASEAN+3
* Arnulf Christl - TRAINER, metaspatial Institute for InWEnt - Capacity Building International, Germany