To change the view within a Viewport object, you manipulate the view of a viewport you use its member properties. The following member properties allow you to adjust the display of the view in a viewport:

• ViewCenter - Specifies the view center of the view in the viewport.
• ViewDirection - Specifies the vector from the target to the camera of the view in the viewport.
• ViewHeight - Specifies the height of the Model Space view within the viewport.
• ViewTarget - Specifies the location of the target of the view in the viewport.