The default value is 0 degrees which ensures that the viewer looks at the scene
from the top of the Z-axis. To look at the chart from the top you'll have to
modify the elevation to 90 degrees. The rotation and elevation properties define
the polar coordinates of camera relative to the chart center point.
Example
The following example modifies the elevation applied on the chart camera:
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2