Bloggage update: When compared to the local Open Street Map, a 1610 map of the Cambridge UK region from the Harvard University Library will show differences in the distribution of settlements, roads and rivers. Towns important 400 years ago are either less so or absent altogether, and Cambridge doesn't rank among them! Two maps and a comparative table and further details are described in this beautifully drawn ancient map.
The FOSS4G-CEE 2013 conference will be held in Bucharest, Romania, on June 17-19. It was mentioned in a recent press release, and today I'm glad to announce that Slashgeo will be a proud media partner of the event!
From the press release: "This year's edition has a target of approximately 300 participants interested in geospatial open source applications. They will enjoy the presence and talks given by important personalities in the geospatial field, that have already confirmed their attendance. The event will take place in Bucharest in the newly built National Library of Romania. Activities will unfold during three days (17-19 of June), being shaped as oral presentations and hands-on workshops. All of these will address, in detail, the way in which free and open source software for geospatial (FOSS4G) can be successfully applied in the following:
We mentioned in January the upcoming FOSS4G-NA 2013 conference in Minneapolis May 22-24. Yesterday, the organizers announced the preliminary program and early bird registration deadline.
The keynote speakers according to the preliminary program pdf:
Our last poll asked "Does the public realize the omnipresence and importance of geospatial technologies?" Out of 137 answers, 50% answered either not at all (23%) or not really (27%), while the other half said 'yes to some extent' (42%) and only 8% believe that the public is fully aware of the omnipresence and importance of geospatial. As as user indicated in the comments, we had to make big assumptions and generalizations to answer that one.
Our new poll asks your opinion on today's impact of Esri on geospatial.
Not related to their recent donation (really!), Cube Cities provides an excellent comparison of Google and Apple's 3D building products.
From the entry: "Note how the entire urban fabric is rendered in the computer generated maps, whereas Google's legacy building layer has missing buildings and contains stylistically different models due to it's human-crafted origin. [...] However, Apple currently does not provide a method of loading data into their mapping application, with the exception of the built-in third party data feeds from Tom Tom and Yelp."
Thanks to Cube Cities for their major donation to Slashgeo.org, making it to the 6th spot of our top donors list (right-hand side column). Thanks Cube Cities!
From the CubeCities.com website: "Cube Cities allows you to search for properties like never before. Fly over any city, see everything you’re looking for at once, and with a click, view listings inside and out. Welcome to a world where business owners anywhere can find the perfect property across the globe in record time. Building owners and managers can add listings, connect to new clients, and create “magic carpet ride” 3D Tours. Brokers can present their properties in the best light, allowing prospective clients to access visual market analysis, as well as detailed building, floor and suite level information."
I also used this opportunity to update our Open Budget. Slashgeo.org is managed by a registered non-profit organization and we've always been fond of transparency.
There are a lot of NOSQL databases around today, but if you want to do some geospatial stuff, the latest release of MongoDB may be a good option.
One of the new features is the ability to store GeoJSON, so besides point data you also can store lines and polygons.
From MongoDB.org: Geo Capabilities: MongoDB 2.4 introduces GeoJSON support, a more accurate spherical model and enhanced search including polygon intersection. Currently 2dsphere supports the Point, LineString and Polygon GeoJSON shapes.
Other key features are:
MacRumors summarizes a full entry on an In-Depth Comparison Between iOS Map Frameworks: Apple MapKit vs. Google Maps SDK. Really an informative article, go read it.
From the comparison: "The Google Maps for iOS SDK isn’t all roses, however. McKinlay warns that Google applies usage limits and quotas to their Places Search API, so if your app gets too successful then you get “punished” for it. [...] There were a few reasons we chose to implement a dual mapping solution. The first was where we couldn’t do everything we needed on the Google Maps so had to keep Apple Maps, otherwise we would be removing features from our app (such as advanced overlays and gradient polylines)! [...] However, Armstrong adds that MapKit only wins for now: “Ask again in six months’ time and that opinion may have changed.”"
A story discussed over Slashdot: Hackers Can Jam Traffic By Manipulating Real-Time Traffic Data.
Their summary: "Hackers can influence real-time traffic-flow-analysis systems to make people drive into traffic jams or to keep roads clear in areas where a lot of people use Google or Waze navigation systems, a German researcher demonstrated at BlackHat Europe. 'If, for example, an attacker drives a route and collects the data packets sent to Google, the hacker can replay them later with a modified cookie, platform key and time stamps, Jeske explained in his research paper (PDF). The attack can be intensified by sending several delayed transmissions with different cookies and platform keys, simulating multiple cars, Jeske added. An attacker does not have to drive a route to manipulate data, because Google also accepts data from phones without information from surrounding access points, thus enabling an attacker to influence traffic data worldwide, he added.' 'You don't need special equipment for this and you can manipulate traffic data worldwide,' Jeske said."