In+ersec+ion for Spatial People

The recent geonews in batch mode, covering a larger timespan than usual.

On the open source front:

• The OSGeo presented an Open Letter to OGC on the GeoServices REST API standard, and it's pretty well documented and informative
• Here's an interesting entry on comparing OpenLayers and Leaflet
• The schedule for FOSS4G-CEE 2013 is now known
• Sean pointed me to  Tom MacWright's online GeoJSON editor
• In releases, there was GeoServer 2.3.2 released and GeoTools 9.2 Released
• Getting closer to QGIS 2.0, here's nice examples of the alpha channel in QGIS color ramps
• If you did not see the press release, OpenGeo is not non-profit anymore

On the Google front:

• The influx of Google Glass stories continues, now Facial Recognition Comes to Google Glass
• Here's Kurt's list of maps-related videos from the Google I/O 2013 conference

On the Esri front:

• ABP reminds us of Esri's Severe Weather Map, including tornadoes...
• An entry on why Esri is excited about the Android Location APIs
• Data updates, World Topographic Map updated with content for the Middle East, North Africa, and the United States
• along with other updates, including Additional DigitalGlobe and community imagery added to the World Imagery map
• Also updated, ArcGIS for Windows Phone and ArcGIS API for JavaScript v3.5 Released

In the everything-else category:

• MapBox tells us they got a huge satellite update, now cloudless and with aerial imagery, but also interesting are the OpenStreetMap updates making they way to MapBox maps in only 5 minutes
• Here's a Make article on mapping buildings with a Kinect
• Some of you might be interested by the GiT4NMD conference, Geo-information Technologies for Natural Disaster Management
• Space Daily share an article named World's major development banks look closer at Earth observation
• Here's links regarding the history of apostrophes in place names
• Via SL, an article named China's Drone Program Appears To Be Moving Into Overdrive
• Those interested in the exciting MapBox work may also want to read about vector tiles of MapBox Streets
• While CAD and GIS have come closer, they remain distinct, here's an entry named Integrating geospatial into construction: the challenge
• Geoff also shares two other interesting entries, one named Economic value of big geospatial data could reach $700 billion/yr by 2020 and the other Estimating the economic and financial impact of poor data quality

Slashdot discussed a few minor geo-related stories:

• One involving GPS named Researchers Are Developing Ad Hoc Networks For Car-To-Car Data Exchange
• Privacy stories goes on, UK's 4G Network Selling Subscriber Tracking Data To Police, Private Parties and this one Congress Demands Answers From Google Over Google Glass Privacy Concerns
• Along with new challenges to locating North itself, Global Warming Shifts the Earth's Poles

In the maps category:

• Here's The Best Geographic Visualization I’ve Seen In Ages according to VerySpatial, basically a circle centered in Asia where over half of the world's population resides
• In Paris? Apple Maps for iOS Adds 3D Flyover Coverage in Paris
• MapBox shares a Q&A of the City Guides by National Geographic mobile app

Still catching up, here's the recent open source geospatial news.

New software:

• VIa OGD, an easy to use website, OSM2GIS to directly download OpenStreetMap data in GIS formats such as shapefiles and kml
• MapTiler.org (mentioned in 2009), which is an open source map overlay generator for Google Maps / Earth and a GUI for GDAL2Tiles, now has a free Mac App Store version

Software updates front:

• Version 6.5 of the OSGeo-Live GIS software collection has been released, including 50 quality geospatial open source applications installed and pre-configured
• There's Leaflet.draw 0.2 released, and as you can guess it's for drawing/editing vectors in Leaflet
• Via UD, the color advice for cartography, ColorBrewer 2.0 has a no-flash version now
• Updated, MapStore 1.1.0 released
• Also available, GeoServer 2.2.5 released
• And so is GeoTools 8.7 Released
• Another one, ImageI/O-Ext 1.1.6 Released

Everything else:

• Here's an entry on the OSGeo Board priorities
• Related, a nice graph of the Moments in the History of OpenStreetMap
• Hyper-local data and news tool Everyblock closed, and it's open source code will continue as the OpenBlock Project, related, DM shared an article named OpenBlock Rural Finds Three Key Audiences for Open Data
• We love numbers right? At the beginning of last month was a user test between JTS Union VS ArcGIS Dissolve, result: 25 seconds vs 1.5 second in favor of the open source JTS
• Probably of interest to some of you, an entry on Optimizing OpenLayers for Mobile Applications
• DM shares an article named [U.S.] FedGeoDay: Advocating for Open Source, the summary: "FedGeoDay, held in Washington, D.C. this past week, can best be described as an advocacy forum for open source geospatial technology and data. Some of the leading organizations, government agencies and companies invested in open source tech sponsored the conference."
• Another article from the same source, The Arches Project: Turning Open Source GIS into a Heritage Inventory and Management System
• And a last article from DM, Palantir: An Open Source Development Success Story, which is really about leveraging PostGIS, the summary: "In late 2007 Palantir launched Gotham, a new geospatial and comprehensive analytics platform designed to meet the challenges of their vast array of customers. This article provides more information on Gotham that enables data integration, search and discovery, knowledge management, secure collaboration, and algorithmic analysis across a wide variety of data sources."

The open source javascript library for mobile-friendly interactive maps named Leaflet is very popular and seriously competing with OpenLayers, and it just got better, Leaflet 0.5 has been released.

From the announcement: "Rejoice, everyone — after 4.5 months of development with 26 contributors involved since the previous major release, I’m happy to announce the release of Leaflet 0.5 stable, hooray!

0.5 highlights include IE10 touch devices and Metro apps support, retina-enabled markers, a much better panning inertia implementation, hand cursors for dragging and a new zoom control design. But the real power of this release comes with about a hundred of subtle improvements and bugfixes, improving usability, performance and overall “feel” of browsing the map even further."

Directions Mag offers an article named Research Explores How to Keep Up With Changing Web Mapping Technology, starting with 'change is inevitable: deal with it'.

From the results: "Despite the fact that the Google Maps API delivered on more of the requirements set out in the Needs Assessment Survey, the team selected Leaflet as the answer to the first question of which technology should be used for teaching. Leaflet was, in fact, second best in supporting the requirements, but the Diary Study suggested students made more progress and felt better working with that set of libraries. The team suggests that might be due to the added transparency and control provided by a fully open source library."

This news story appeared on the BBC today - a team from the University of Portsmouth have mapped the location of bombs dropped on London during World War Two. The information is available via an interactive map or android app.

Still catching up my August holidays, here's the recent geospatial open source and open data geonews.

In general news:

• O'Reilly publishes an article named With new maps and apps, the case for open transit gets stronger: "There’s no reason why important civic infrastructure should get bound up in a fight between Apple and Google. And in communities with public GTFS, it won’t."
• Esri published an update on their relation with open source: "Esri has always hosted open code and samples in a variety of ways, but more can be done. Focus and motivation needs to be improved, and Esri is now making it a priority to improve its open source participation. More of Esri’s code should and will be open sourced in the coming days, weeks, months, and years." They are also on Github now, http://github.com/esri and http://github.com/arcgis
• sxdf
• India launched the beta of their open data portal
• MapQuest have a New Geocoding Service and Updated APIs Based on Open Data
• OpenGeo shares an article named Haitidata.org: using open source geospatial for disaster response planning
• FOSS4G software getting adopted, gvSIG 1.11 now official part of the standard software portfolio in the City of Munich and Luxembourg using open source GIS for cadastre
• DM shares a 2-parts article named Designing an Open Source Geospatial Solution to Manage Airport Noise and Operations
• For the curious ones, here's the new OSGeo Board and Charter members refreshed

In software news:

• The OSGeo-Live 6.0 GIS software collection has been released
• A serious OpenLayers competitor, Leaflet 0.4 has been released, actually, they're at version 0.4.3 now
• Believe it or not, MySQL inches closer to PostGIS with support of true spatial relationship functions
• Here's a short entry on Surface Interpolation in GeoServer and there's a new release, v 1.4.3, of GeoServer-Manager
• Nathan is enthusiastic about Five new awesomely awesome QGIS features, here's more on the Latest Style User Interface Improvements
• There's a new winGRASS 7 with R-integration
• Where's MapGuide Open Source? Here's MapGuide state of the union address (or: Results of the user/developer survey)

Still in my geonews catching up process, here's the open source-related geonews not shared yet.

• Via LinkedIn I learned about HSLayers and Proxy4OWS,
  • For HSLayers: "HSLayers is yet another JavaScript Mapping framework. You can use it for building rich mapping portals, as well as use it’s parts for improving your simple OpenLayers-based map."
  • For Proxy4OWS: "It is transforming OGC WMS request types from the client, into WCS or WFS requests, so that the target server can accept them."
• For OpenStreetMap, I liked the 'Worst of OSM' page showing failed imports, I guess we wouldn't see this from proprietary providers (via)
• For those unable to move to 2.0, PostGIS 1.5.4 was released
• If you want to learn about GeoExt 2 development
• GeoNode 1.1.1 was released
• And so was MapProxy 1.4.0
• As an indirect user of GEOS, I'm happy that GEOS graduated OSGeo incubation
• The OSGeo also informed us of the First Open Source Geospatial Laboratory in South America and First African Open Source Geospatial Laboratory
• You might have an interest in the Comprehensive preview of MapGuide Open Source 2.4 series
• libais 0.7 was released: "C++ decoder for Automatic Identification System for tracking ships and decoding maritime information"
• APB informs us  that the famous AP, Associated Press, is moving to TileMill and Leaflet for their interactive maps

While we did mention Leaflet a few times in the past months, it never had it's own entry on Slashgeo, until today! Leaflet is a modern, lightweight open source JavaScript library for Interactive maps by CloudMade.

Its description: "Weighing just about 22kb of gzipped JS code, it still has all the features most developers ever need for online maps, while providing a fast, pleasant user experience. It is built from the ground up to work efficiently and smoothly on both desktop and mobile platforms like iOS and Android, taking advantage of HTML5 and CSS3 on modern browsers. The focus is on usability, performance, small size, A-grade browser support, convention over configuration and an easy-to-use API. The OOP-based code of the library is designed to be modular, extensible and very easy to understand."

wheredat provides a geocoding and reverse geocoding interface (UI) through Bing maps. You setup an instance of the application and then embed it in an iframe on any other applications that use it. The client app passes an address or lonlat it needs geocoded and wheredat builds a map showing the location found allowing the user to move the point on the map to further refine the location. All this information is passed back to the client app so it can be used or stored there.  wheredat is extremely light weight and quick to load.

Demo Page: http://wheredat.adc4gis.com/example.html

Source Code: https://github.com/applieddataconsultants/wheredat

Lately there was a not much surprising news about Google products and services. Among other things Google has changed the Google Maps API use policy and will charge to those users that exceed some download limits.

It is well known that Google Maps is one of the most (or the most) famous mapping service used around the net and it starts the web GIS revolution some years ago but hopefully it is not the only API we can use. Bing and the discontinued Yahoo Maps, are great competitors but there are great and open alternatives to use.

I wrote this post to summarize the most important JavaScript API alternatives to Google Maps.

[Editor's note: this anonymous submission mainly discusses OpenLayers, Polymaps and Leaflet]