2004

146 | Chapter 12 Specify a 3D View
Many operations are not available in perspective view, including panning
and zooming and operations that require using object snap or input from the
pointing device.
A perspective view remains in effect until the perspective effect is turned off
or until a new view is defined in its place.
To define a perspective view of a 3D model
1 On the command line, enter dview.
2 Select the objects to display.
3 Enter ca (Camera).
By default, AutoCAD sets a camera point at the center of the drawing.
4 Adjust the view as if you're aiming a camera.
A representation of a house shows the current viewing angle. You can set
your view dynamically by moving the crosshairs and clicking.
5 To switch between angle-input methods, enter t (Toggle Angle).
You also can adjust the view with one of two angle-input methods.
■ For the Enter Angle from the XY Plane option, enter the angle of the
camera up or down relative to the XY plane of the current UCS. The
default setting, 90 degrees, points the camera straight down from
above.
After you enter the angle, the camera is locked at that height, and you
can rotate the camera about the target with the rotation angle
measured relative to the X axis of the current UCS.
■ For the Enter Angle in the XY Plane from the X Axis option, rotate the
camera about the target with the rotation angle measured relative to
the X axis of the current UCS.
6 To turn on the perspective view, enter d (Distance).
7 Specify a distance, or press
ENTER to set the perspective view.
You can use the slider bar to set the distance between the selected objects
and the camera, or you can enter a real number. If the target and camera
points are very close (or if the Zoom option is set high), you might see
only a small part of your drawing.
Command line
DVIEW