articles

Remote chrome debugging on android

With the latest versions of chrome debugging web apps running on smartphones and tablets has become a lot easier. This article shows you how to setup the required android tools, local chrome and remote chrome to debug a web app running in chrome on an android device. The first thing you need to do is make sure you've got the correct Android tools installed on your normal computer.

Euro debt and financial crisis visualized with timeline using d3.js and Three.js

n a couple of recent articles I've been using Three.js and d3.js to create 3D maps and visualize metrics. In the last week I combined a couple of these techniques to create a visualization of the financial/debt crisis in the Eurozone. In this timeline I show how the interest rates for the long term bonds change over time for the Countries of the Eurozone. This is the interest rate countries pay to refinance their debts

Three.js: render real world terrain from heightmap using open data

Three.js is a great library for creating 3D objects and animations. In a couple of previous articles I explored this library a bit and in one of those examples I showed you how you can take GIS information (in geoJSON) format and use D3.js and three.js to convert it to a 3D mesh you can render in the browser using javascript. This is great for infographic, but it doesn't really show a real map, a real terrain.

Render geographic information in 3D with Three.js and D3.js

The last couple of days I've been playing around with three.js and geo information. I wanted to be able to render map/geo data (e.g. in geojson format) inside the three.js scene. That way I have another dimension I could use to show a specific metric instead of just using the color in a 2D map. In this article I'll show you how you can do this.

Create complex Word (.docx) documents programatically with docx4j

A couple of months ago I needed to create a dynamic Word document with a number of tables and paragraphs. In the past I've used POI for this, but I've found this hard to use and it doesn't work that well for me when creating more complex documents. So for this project, after some searching around, I decided to use docx4j. Docx4j, according to their site is a:

HTML5: Web intents to share information between web apps

If you've read any of my other articles you're probably aware that I really like this whole "browser as the platform" concept. We can easily communicate with backend services using web sockets, parallelize javascript with web workers and access a lot of device capabilities such as web camera, battery and most of the acceleration and location sensors.

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