<html> <body> <img src = 'https://chart.googleapis.com/chart? cht=p3&chd=t:60,40&chs=500x250&chl=Hello|World'/> </body> </html>
Figure 8-5. Image charts require nothing more than a simple URL request to yield impressive results
Not bad for such a short piece of code. However, constructing the URL can be a complicated and unintuitive process. Thankfully, if you are using charts where the data set is static (unchanging values that are known beforehand), Google has provided a useful Chart Wizard that makes the process of creating image chart URLs a whole lot easier (Figure 8-6). You can find the Chart Wizard at http://code.google.com/apis/chart/docs/chart_wizard.html.
In the Google Chart Wizard, a data series is referred to as a data set.
Figure 8-6. You want charts? You’ve got charts galore—and more—with Google’s Chart Wizard (for image charts).
Although the Chart ...