PUBLIC MARKS with tag geo

The following maps are the first of a series that will be made in order to map out the distinct geographies of Wikipedia. Many Wikipedia articles (about half a million) are either about a place or an event that occurred within a place, and most of these geographic articles handily contain a set of coordinates that can be imported into mapping software.

GeoREST is a framework for accessing, distributing, and editing raw geospatial data over the web. Because it is based on REST, it supports searching using standard Web search engines such as Google and Bing.

a rue est un “texte social” qui mêle signaux (simples, systèmes binaires), signes (complexes, systèmes ouverts) et symboles (stables et porteurs de sens inépuisables) en des proportions équilibrées et dans des combinaisons infiniment variées, créant richesse, banalité ou ennui.

What I've outlined thus far leads in to some of the questions that I'm considering with my research:

* What are the implications of an increasingly geospatial web for cartography and our experience of the city?

GeographicLib is a small set of C classes for performing conversions between geographic, UTM, UPS, MGRS, geocentric, and local cartesian coordinates and for solving geodesic problems. The emphasis is on returning accurate results with errors close to round-off (about 5–15 nm). In addition, various properties of the Transverse Mercator Projection are described and an accurate algorithm for Geodesics on the Ellipsoid is given.

Tutorials to help you understand the various projection and coordinate systems. Also find conversion tools to convert datasets from one system to another.

The Big Board is a real-time collaborative environment for mapping. Users open “conference rooms” on a shared map, and join conversations in these conference rooms, much like in a regular teleconferencing application. However, instead of sharing faces and powerpoints and speech over the wire, users draw on and add content to a shared map or very large image.

Geohash is a string representation of two dimensional geometric coordinates. This technique is well described at Wikipedia Geohash.

Grid Square Code (JIS X 0410) is also a string representation of geometric coordinates. That grid code is utilized by Japan's government. NTT DoCoMo use modified version of that grid code.

These new interfaces enable developers to do nearly everything that you can do at http://blockchalk.com. It’s now possible to build client applications, mash-ups, and other tools based on BlockChalk geolocation data and services.

You can read the full API documentation here: BlockChalk API v0.6

So what does this mean? It means that BlockChalk is now more than just a nifty GPS app for your iPhone. It’s an open platform for storing and accessing user-generated content within a geographic context.

What makes the BlockChalk platform unique?

* It’s dead simple. There are no badges, medals, points, unicorns, pirates, or other viral gaming craziness. BlockChalk is about locations and the messages people leave there, that’s it.

Michael Goodchild’s notion of Volunteered Geographic Information (VGI) on the emergence of geographic data provided voluntarily by individuals, to discuss the greater presence of unvoluntarily generated geographic data. In the talk “Not So Volunteered Geographic Information“, I present my method to analysis these new kinds of citizen generated data, and use my work to discuss the induced opportunities, limitations and concerns.

Altinum was a prosperous Roman city on the coastal lowlands of northern Italy. It was sacked by Attila the Hun in the 5th century AD, and conquered by the Lombards a century later. Historians now speculate that these events prompted inhabitants from Altinum and other towns in the vicinity to resettle on more easily defended islands in a nearby lagoon... thus founding Venice. (Wikipedia has a good concise history of the town.)

At this point, I recommend following along from step 2 of the official geoDjango guide.

All distributed data should be accessed and used relatively to the GeoBase Unrestricted Use Licence Agreement. With this licence, users are granted a non-exclusive, fully paid, royalty-free right and licence to exercise all intellectual property rights in the data. This includes the right to use, incorporate, sublicense (with further right of sublicensing), modify, improve, further develop, and distribute the data; and to manufacture and/or distribute Derivative Products. The Licensee shall identify GeoBase as a data source.

LinkedGeoData is an effort to add a spatial dimension to the Web of Data / Semantic Web. LinkedGeoData uses the information collected by the OpenStreetMap project and makes it available as an RDF knowledge base according to the Linked Data principles. It interlinks this data with other knowledge bases in the Linking Open Data initiative.

The Treasury Board of Canada Secretariat has established the Standard on Geospatial Data for the Government of Canada. The Standard on Geospatial Data supports the Policy on Information Management and the Policy on the Management of Information Technology of the Government of Canada. The Standard will facilitate interoperability across institutions and increase their ability to identify, understand, use, and share geospatial data. This standard also allows institutions to maximize the reuse of existing mapping and related products.

Folded in Place furthers the abstraction once offered by landscape photography by removing the place itself and replacing it with a mapped construction. This method leads the viewer to re-imagine the spectacle of the foreign lands and explore the abstraction of place offered by photography. The combination of still-life constructions and the maps’ reference to large and distant lands examines the paradox of known and unknown geographies offered by the photographic image. In this manner, Folded in Place turns the abstract representation of the map back into a physical landscape using photography to look at the map as a geography of its own.

A session talking about what people can/are doing with proximity sensing (and how/why in many cases, locative services aren't about absolute (geo) location, but relative location. Covering implementation and code of Bluetooth in particular, including information on the setup I used at Where 2.0 and WhereCamp 2008. (The morning session already covered lots of concerns about privacy that are applicable here, so this session will focus on cool stuff you can do and how to get out there and do it)

Geochat emerged from a simple concept - can I send an SMS message and see it on a map?

pdate for TrailRunner, the outdoor oriented route-planning and journaling software for Mac OS X. This major milestone release now adds a routing feature based on openStreetMap,

Yahoo Placemaker is a new web service from the Yahoo Geo team. It is a location extractor service that returns all the known geographical locations from text, RSS feed, or an HTML document.