HSL departures heatmap

I created a a simple application using the HSL open data XML dump, the MapQuest Javascript API and the heatmap.js library. Here’s a screenshot: The heatmap shows the number of departures from each stop in the HSL public transport system. It essentially answers the question “How easy is it to get away from here?”. Or,… Continue reading HSL departures heatmap

Resistor tools

I just wrote a parallel resistor value calculator, and a resistor colour code calculator. There are lots of them on the web, but most of them seem to have a 1990’s era user interface, where you need to enter values into separate fields and then click on the “Calculate!” button. Blech. So, I rolled my… Continue reading Resistor tools

Filtering a Drupal 7 View based on multiple user profile fields

This is basically continued from the previous post Filtering a Drupal 7 View based on a user profile field, where a user called Juan asked a simple question: “How do I filter by multiple user profile fields, so that all the terms must match?”

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Circlr – a jQuery plugin for arranging things in a circle

Here’s “Circlr”, a jQuery plugin that arranges html elements on a web page into a circle. It is used on the front page of my site. There are also a couple of usage examples included in the package. Enjoy! circlr1.zip

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Installing Diaspora* on Debian 6.0 on a virtual server

I went ahead and tried installing my own server to run a pod for the distributed open source social network, Diaspora*. The installation went fine according to the instructions (Installing and running Diaspora) until the part where I say bundle install –without development test And Debian says: Fetching source index for http://rubygems.org/ Killed

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PHP Chat server in 2.5Kb

I got fed up with not having a decent place to chat with random colleagues and such, who don’t always have access to the same servers and accounts as I do. A quick search on the web revealed no sensible service well suited to copy and pasting code, which is the number one reason I… Continue reading PHP Chat server in 2.5Kb

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