2012

You can also type values directly the entry box at the base of the Tilt
window. A positive value rotates the camera upwards, and a negative value
rotates camera downwards. Typing 0 straightens the camera.
To roll camera left/right
■ Click the Viewpoint tab, and slide out the Camera panel.
■ Type in a value into the Roll entry box to rotate the camera around its
front-to-back axis.
A positive value rotates the camera counterclockwise, and a negative value
rotates it clockwise.
NOTE This value is not editable when the viewpoint up vector stays upright
(that is, when you use Walk, Orbit and Constrained Orbit navigation tools).
Move Focal Point
You can change the focal point for the camera. For the current viewpoint, use
the Look At entry boxes on the ribbon. For saved viewpoints, you can use
the
Edit Viewpoint dialog box (page 272) to adjust the camera values.
NOTE The Z coordinate values are not available in a 2D workspace.
In a 3D workspace, you can also put the Scene View into focus mode, which
effectively swivels the camera so that the point clicked is in the center of the
view. See
Focus (page 175).
To move the camera focal point
1 Click the Viewpoint tab, and slide out the Camera panel.
2 Type in numerical values into the Look At entry boxes to move the
camera focal point by the amount entered.
Straighten Camera
You can straighten the camera to align with the viewpoint up vector in a 3D
workspace only.
When the camera position is close to the viewpoint up vector (within 13
degrees), you can use this function to snap the camera to the appropriate axis.
170 | Chapter 5 Explore Your Model