Our Google Chart version of the Spyrograph toy was due for a refresh - we realised that several users are coming every day to see it, and the script was not easy to use.

Time to clean our script and publish it in a separate page.

The recent upgrade to the Google Chart API brings new types of charts with interesting possibilities. One of them, the Radar Chart, is well suited to be used as foundation for our new Wind Rose gadget.

Using JavaScript, RSS and two APIs from Google, we can cook our own weather station.

Adding a complex legend to your Google Chart should not be a difficult job. Just do the legend on your own and let the Chart API handle the data values and the IMG object.

Simple is beautiful.

Charts for the Web has always been a hassle: get the data, validate it, use graphical libraries, work out the axis, render data on screen. Etc.

Now there's an elegant alternative in the Google Chart API.

The Google Chart API allows any developer to produce a chart by submitting a URL. The result is a nifty image of your data that can be embedded in any webpage. Cool.