Category: note

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Py all means

Over on his blog, Bill Dollins muses about the range and ubiquity of the Python language in the geospatial realm. It’s true – if you work with ESRI products on a daily basis (like I do) you almost can’t get away without using Python one...

Geospatial Revolution Episode 4 is available! 0

Geospatial Revolution Episode 4 is available!

From Penn State University and partners comes the fourth instalment in the Geospatial Revolution series [18 mins]. The programme is an “outreach initiative about the world of digital mapping and how it is changing the way we think, behave, and interact” – and it’s great for...

iOS4 devices track and store their location 0

iOS4 devices track and store their location

According to a presentation by two UK researchers at Where 2.0 conference, iOS4 devices constantly track and timestamp their location and dump that data into a file, which is shared with your desktop computer if you choose to backup your iPhone’s content. This presents a...

London Tube Maps 2

London Tube Maps

Much has been talked and theorised about, and much has been done to, the London Tube Map, the epitome of the intersection of information design and abstract network cartography. From fourthway comes now a handy tool to draw some interesting comparisons: The Real Underground allows you to...

Swiss maps on your website 2

Swiss maps on your website

Yesterday in the late afternoon the Swiss Federal Office of Topography (Swisstopo) declared (German) the exposure of maps via web service and opening up of their API (press release also only in German) through Swisstopo web access (brief description in English) with the following two options: WMTS option (Web Map...

New method locates you within a few hundred metres 0

New method locates you within a few hundred metres

A new method developed by Wang et al. claims to be able to geolocate IP addresses much (they claim 50 times) more accurately than has been previously feasible. The new method uses a three-tier approach: 1) sending a data packet and measuring how long it...

Processing 0195 0

Processing 0195

Starting from yesterday the Processing team offers Processing 0195 pre-release for download. Lots of bugs have been fixed and 0195 is considered a stepping stone for a Processing 1.5 stable release in a few days. (via Ben Fry)

GoopenStreetMaple: Information wants to be free 4

GoopenStreetMaple: Information wants to be free

A rant just arrived in my inbox, by Mikel Maron via the Geowanking mailing list. While I think Mikel has some valid points, I am still (naïvely?) optimistic that the bleak picture he paints will not materialise in really bad outcomes. Hopefully. But who knows....

Potato earth 1

Potato earth

Above picture shows a potato-shaped earth. It’s called a geoid and shows the actual (but highly exaggerated) form of our planet. The surface of potato earth represents the form of an ideal surface which water would adopt if it covered the whole earth and if...

Citation donuts 0

Citation donuts

Today’s Economist‘s Daily Chart features a diagram of scientific citations per country: The diagram has two parts: a donut chart showing the proportion of citations per country for 1999-2003 and one for 2004-2008. The (not terribly surprising) story (or at least the interpretation of the...

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Geoprofiling using cellphone data (and some volunteered information)

By filing a legal suit against Deutsche Telekom German politician Malte Spitz (Green party) was able to obtain data recorded under the German preventive data retention act. He chose to publish the data which was collected in the timespan from August 2009 to February 2010...

CrisisCommons 0

CrisisCommons

Through this post on GIS and Science I learnt about CrisisCommons which appears to be some kind of meta-organisation for disaster relief organisations. I registered with their Google Group and I’m curious to learn what exactly they are doing and whether I can maybe contribute...