Lin.ear th.inking

Thanks to OpenGeo , last weekend I attended the OpenStreetMap State of the Map (US) conference in Portland, Oregon. It was a great conferen...

A while ago I posted on generating random point sets , and Sean Gillies suggested Halton sequences as a way of generating nice-looking poin...

Recently Sean Gillies and others have been looking at the concept of geometric simplicity as implemented in JTS /GEOS, specifically in the ...

A few thoughts on the Atlantic article on GooMaps ... I love the term "the deep map".  I'm not doing GIS any more - I'm...

After the warmup of rounds 1 & 2 of the Battle of the Spatial Scripting Languages , it's time to pick up the pace!  The last two r...

Ryan Tomayko has a post on how Ruby recapitulates AWK (or to be more biologically accurate, how it carries vestigial traits which reveal ...

Can't help but feeling a little smug about this post on using JTS in a Hadoop process for generating heatmaps for demographic data. ...

This post shows off a very cool image of global earthquakes since 1898.   No link to the source dataset, though.  That's unfortu...

The Japanese have figured out a way to let me avoid taking the garbage out on rainy winter evenings - a Rock-Paper-Scissors robot that alway...

Stefan Steineger of the OpenJUMP project  pointed out this great paper in Nature on The case for open compute programs .  The paper raises ...

I love this picture. Nowadays this functionality weighs only a few ounces, and we carry it in a pocket.

A peerless pastiche by SWWTMTOTH...  Try it, it works!  Go ahead, make it your homepage! Hands up all those who remember modem whistle...

Last week I was at FOSS4G-NA in Washington DC.  It was my first time in DC, and my first FOSS4G as a member of the OpenGeo team. Both were v...

In a comment to Battle of the Spatial Scripting Languages , Sean suggested that a slightly more in-depth test of language expressiveness mig...

Mobile computing is nothing new!  My first programmable device was a  TI-58  calculator: I spend many happy hours punching in the code f...

With the mobile meteorite looming ever larger over the landscape of Planet PC, it seems like a good time to recall some memories of the las...

Just noticed this slideshow from QCon 2012 on the vision for Java's evolution over the next few versions. Some highlights of JDK 8: ...

The gloves are down in this exchange on gis.stackexchange, over LOC counts for Fiona , JEQL , and GeoScript-JS . Fiona takes one on th...

I just noticed this series of posts by Stephen Mather on generating medial axes of polygons by creating Voronoi diagrams on the densified...

Recently I've been working on generating surfaces from irregular sets of data observations, for thematic rendering purposes.  The data I...