You can control the viewing angle in a 3D space by moving the camera position. Each 3D space has three modes, to let you move the camera in the following ways:
To enter a mode, click on the appropriate icon on the toolbar button on the 3D space. To move the camera, drag anywhere on the 3D space while holding down the mouse button. The mode ends when you release the mouse button and the cursor will return to its normal editing actions.
Alternatively, you can use keyboard shortcuts for each mode:
A number of preset camera views let you quickly orient the camera to a particular viewpoint.