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Create global precipitation (rain) visualizations with HTML5, Canvas, and open data

I’m currently working on my next book for Three.js and one of the chapters deals with visualizing open data. When looking around for data that I could use, I ran across a set ...
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Create a simpe RESTful service with vert.x 2.0, RxJava and mongoDB

A new article after an hiatus of almost half a year. In this article we’ll have quick look at how you can get started with vert.x and more interestingly how you can use RxJava ...
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Getting started with Scala and Scalatra – Part IV

Welcome to the last part of this series of tutorials on scala and scalatra. In this part we’ll look at how you can use Akka to handle your requests using an asynchronous dispatcher, ...
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Getting started with Scala and Scalatra – Part III

This post is the third on a series of articles I’m writing on scalatra. In ‘part I’ we created the initial environment, and in ‘part II’ we created the ...
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Twitter REST API from Scala and Java using signpost

If you’ve read some other articles on this blog you might know that I like creating visualizations of various datasets. I’ve just started a small project where I want to ...
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Getting started with Scala and Scalatra – Part II

In the previous part of the tutorial we created a simple application from scratch and setup Eclipse so we could edit the scala files for scalatra. In this second part of the tutorial ...
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Getting started with Scala and Scalatra – Part I

In this series of tutorials we’re going to look a bit closer at scalatra. Scalatra is a lightweight scala based micro-web framework, that can be used to create high performance ...
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Java Word (.docx) documents 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 ...
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Netty: Using SPDY and HTTP transparently

Most people have already heard about SPDY, the protocol, from google, proposed as a replacement for the aging HTTP protocol. Webservers are browsers are slowly implementing this protocol ...
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Binary websockets with Play 2.0 and Scala

In a recent article I showed how you can use webrtc, canvas and websockets together to create a face detection application whose frontend runs completely in the browser, without the ...
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