Basic 2D charts include the following types:

• Column, the traditional chart to show the growth of the profile
• Bar, the sister of Column
• Pie, the favorite of marketing salesman
• XYLine, commonly used in scientific computing

Just as the following screenshots demonstrates:




There are quite a few variants of the basic graphics:

• Stacked Column/Bar, either normalized or not
• logarithmic axes
• 3D versions of all the above

The dojox.chart.Chart is the work horse behind the scene, there are only couple of functions that need to be overrided to support new chart:

• constructor, binding the axes
• getSeriesStyle, generate the styles for series if the user do not specify
• _render, the ultimate method to visualize the data

You can fetch the code from here, it depends on dojo-0.9; and we are planning to migrate the 3D chart into this framework, you may bypass the bump of the road if you stick to the dojo-svn from the very beginning.