To format the area of an area chart, follow the steps below:
For a 2-D area chart, you can check the Use Depth option and specify the depth and direction as required to add a 3-dimensional effect to the areas, you can also set to show the lines that represent the data categories by checking High-Low Lines.
Note: For 3-D charts, the Show Data Label checkbox is grayed out. However, you can still see the data labels by moving the mouse pointer over the areas when viewing the report result in view mode or in JReport Web.
See also Format Area dialog for detailed explanation about options in the dialog.