I live in Utrecht, a city where it seems the municipality tries to annoy car drivers as much as possible. Public transport isn’t an option, even despite the traffic jams it’s slower, less reliable and don’t get me started on the attitude of bus drivers. When you want to travel from one place in Utrecht to another it’s often a good idea to find the nearest highway, it might be much longer, but often much quicker. Instead of complaining (which will stop now
) there might be a solution. I have a theory that a trip is much faster when you avoid traffic lights and use the highway as much as possible. To prove that theory, test my new (Android 2.2) phone, fresh up my Scala knowledge and have a cool pet project I started logging my trips.
In this article I will show you how to collect the data, parse and convert it to a usable format and show it on a map. This is just a first prototype and proving my theory will probably take a lot more time which I don’t have because I’m in traffic jams all the time
.
If you don’t like all the technical mumbo jumbo, just scroll to the maps, they’re cool to look at.
(more…)
Tags: geotools, GIS, openstreetmap, qgis, Scala
Filed under Java | 3 Comments »
Right now I’m following some geospatial tweets and came across an interesting one about a new option to add a geospatial index to a MongoDB. Since I’ve done some stuff with Scala recently I decided to insert the data into MongoDB with Scala using scamongo. Unfortunately the scamongo Scala driver for MongoDB gave me too much trouble, so I switched to the java driver.
Tags: geohash, geospatial, GIS, index, mongodb, Scala, spatial
Filed under General | 2 Comments »
After being away from the GIS world for a while, I started working on a new project replacing the current used software by an open source alternative. The first small application that needed to be made was for an emergency phone call center to show the position of the caller on a map. After that a few prototypes should prove that it was doable to replace the current software stack by open source alternatives.
In this blog I will describe the tools used, a few of the problems I ran into and of course the solutions to the problems which involve coding and communication
The tools used where a Java based server called Geoserver and a client side JavaScript library called OpenLayers.
Tags: Ajax, GIS, Javascript, Opensource, Oracle
Filed under Java | 2 Comments »