The default chartType property for ChartBlox is Vertical Bar, Side-by-Side, 3D Effect, which results in a two-dimensional bar chart with a slight 3D effect. A standard bar chart (Bar or Vertical Bar, Side-by-Side) or line chart (Line or Vertical Line, Absolute) is flat and two dimensional, but by setting the depthRadius property, you can add a subtle 3D effect of your own choice to the these charts, giving them a different look. To add a subtle bit of depth to the flat bar and line charts, combine the depthRadius property along with the chartType property, for example like this:
<blox:chart ... chartType="Bar" depthRadius="5" ... />
Acceptable values for depthRadius are integers between 0 and 100. The depthRadius setting will also affect the appearance of other 2D charts.