ChartAPI.org generates a .png chart image based on a URL. You can specify a number of parameters, such a the image size, colors and labels. Each parameter is separated by the & character. For example, the URL below generates an image that is 200x200 pixels (s=200x200), it is a pie chart (t=pie1) and the data values are 30, 25, 45 (d=30,25,45). The URL also specify three labels, "Yes", "No" and "Not sure" (l=Yes|No|Not%20sure).
http://api.chartapi.org/chart?s=200x200&t=pie1&d=30,25,45&l=Yes|No|Not%20sure
awesome
http://www.chartapi.org/
