Thematicmapping - blog.thematicmapping.org - thematic mapping blog
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Mapping through the Andes 8 Jul 2013 | 02:32 am
I'm planning a 3 months journey through the Andes from Caracas in Venezuela to Puerto Williams in Chile, starting in December this year. It's been a long dream to follow the longest mountain range in ...
Creating a Graticule with Leaflet 5 Jul 2013 | 01:05 am
A graticule is a grid of latitude and longitude lines on which a map is draw. This blog post will show you how to create a graticule with Leaflet. Mercator is very bad for for thematic world maps, as...
UTM zones with D3.js 27 Jun 2013 | 02:26 am
I've just started to learn about the mapping capabilities of D3.js, and this is my first-ever D3.js visualization. I'm very impressed by the work on map projections by Jason Davies and Mike Bostock. I...
Converting shapefiles to TopoJSON + a GitHub secret 24 Jun 2013 | 09:10 pm
This blog post will show you how to convert shapefiles to TopoJSON. We'll convert the two shapefiles we created in my previous blog post, containing all counties and municipalities of Norway. In a bl...
Splitting and clipping shapefiles with QGIS 24 Jun 2013 | 12:36 am
In my last blog post, we improved a dataset containing all municipalities of Norway by merging polygons in QGIS. The municipality polygons include the sea areas, which makes it harder for people to re...
Merging polygons in QGIS 23 Jun 2013 | 08:32 pm
I'm going to play with the mapping capabilitites of D3.js in my new blog series from Foldøy island. I would like to use data from my own country, Norway. This dataset needs some improvements, and this...
Creating a synchronized view of two maps or images with Leaflet 21 Jun 2013 | 06:37 pm
In my last blog post, we created a Leaflet plugin capable of showing zoomable high-resolution images with Leaflet. Now, I need to compare two images side-by-side, and I've decided to create a generic ...
Showing Zoomify images with Leaflet 19 Jun 2013 | 11:08 pm
Today, I'm starting a new blog series written from Foldøy, a tiny island in south west Norway which will be my home for two months. In this first post, I'll show you how to deliver zoomable high-resol...
Det Norske Kartselskap 1 May 2013 | 08:40 pm
Dette er en samleside om saker som angår Det Norske Kartselskap (DNKS). Selskapet har fått stor oppmerksomhet i media i den siste tiden, for å bruke svært ufine metoder for å lure kunder til å betale ...
Norway will open its topographic datasets to the public! 1 May 2013 | 01:14 am
Today, 30th April 2013, is a milestone of the mapping history of Norway. Together with two governmental ministers, the Norwegian Mapping Authority announced they will open its topographic datasets to ...
