I just updated the rgviz-rails gem to work with Rails 3. It was pretty easy, following the instructions of this site. I also moved the code from Google Code to github, so i can have all my projects under a single tree, and to start using git more frequently. Here are the new URLs: http://github.com/asterite/rgviz [...]

Ok, now you can easily implement a Google Visualization API data source on rails. But… are you still using javascript to render them? Well, you don’t need to do that anymore. Now rgviz-rails supports a pretty simple and powerful way to do it. In your views templates you now have an rgviz function. You use [...]

A couple of days ago we started working on a new visualization for Riff's acitivity. The requirement was to find a way of representing the relationship between items tag with two or more tags, the users who were tagging and the evolution of the tags along time. With the help of our designer Luigi and Juan we crafted a nice visualization.

For those of you not familiar with a treemap, it is simply a bunch of boxes somehow arranged inside a bigger box; each of them also contains its own set of smaller boxes, and so on. Each box has an associated weight that determines its size. Take this one as an example from another blog…
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