Posts for GIS
Last week I updated Shape Escape to convert shapefiles to GeoJSON and TopoJSON, in the hopes of making it easier for developers to quickly get that web-unfriendly shapefile into some clientside useful vector format.
First, it's worth noting that TopoJSON has got a bunch of webmap ... read more
I've played briefly with TileMill before, but after learning more about the advances that Development Seed is putting into their MapBox stack (such as Node.js integration with Mapnik, utfgrid and more) I realized it was time to sit down and play with it for real.
My ... read more
Well it's been a while, so just a quick note: Since the last post, I started working full time for Google. And with that out of the way, here's a post on how and why I made shpescape.com, which lets you upload shapefiles to Google Fusion Tables.
Why ... read more
Last night at the San Francisco Ocean Film Festival Google launched the Oceans Showcase, which is the second contract I've had the opportunity to work on with them. The showcase is a set of Google Earth based Tours for playing in a webpage (plugin required) or via ... read more
Last night I installed Layar on my phone, and had some fun checking out the twitter and wikipedia layers. So I signed up for an API key, and 30 seconds later saw a tweet mentioning the California Data Camp. Perfect! After a rare and blissful sleep-in, I ... read more
The upcoming Map Kibera project acquired some imagery recently, and I got ahold of it yesterday to set up a quick tilecache preview. There's actually been quite a few requests here recently for getting some tiles up quickly from various sets of source imagery, so I thought I'd write ... read more
AppEngine is awesome. The more we use it, the more we like it.
Recently, someone contacted us who needed a site up, in a hurry, to serve up some points on a google map. The catch was there were about 50k points (so it seemed server side clustering might ... read more
A few months ago, Walkscore.com launched their new API, aimed a Real Estate sites, academic and other largescale studies, and anyone else who might want programmatic access to the walkability of a set of locations.
Recently, a number of large sites (zillow.com, Estately.com, BaseEstate.com, ... read more
Earlier this year, I read this post on local foodsheds, and got to thinking that there must be a good way to automate and generalize this type of analysis. So I put the idea into the big bucket of ideas that I don't have time to implement, until it ... read more
At the same time I was taking a great nature hike just before the start of FOSS4G, there was a mapping party in Houte Bay. The party clearly came out a success, and thanks to Mikel for passing on the contact info of the gracious hosts at Tobi, I ... read more
The presentations for FOSS4G are over, and just a few workshops and the code sprint are left in the official conference. This year I ran a workshop on GeoDjango with Chris Schmidt, and gave a presentation on the work I did recently with walkscore.com.
The workshop had a ... read more
I arrived in Cape Town about 5am (dark outside), and stepped carefully back into Africa (stepped/stumbled: they were unable to locate lights for the path from the plane to the terminal). There wasn't much of a line for citizens in the passport-checking area, but that didn't stop at least a ... read more
I had a great backpacking trip in the Southern Sierras (near Mt. Whitney in the John Muir Wilderness) a few weeks ago, and finally decided to see about getting some geocoded pics online.
A few weeks ago, I purchased Eye-Fi's fancy geolocating and wireless-uploading SD Card, which I'd seen a demo of at WhereCamp. I love gadgets, perhaps too much, but this thing is indeed a great implementation of a cool idea. And, as yet another harbinger of how ... read more
When I first saw walkscore.com I was impressed with their simple but clever approach to creating a walk index.