Setting Perspective Distance

Setting Perspective Distance

Moves the camera in or out along the line of sight relative
to the target. Once a perspective view is set, zooming is
not allowed. Zoom functions must be done in the DVIEW
command.
1. Choose View, 3D Dynamic View.
or
2. Type DVIEW at the command prompt.
Command: dview
Select objects: pick objects
Select objects: enter
CAmera/TArget/Distance/POints/PAn/Zoom/TWist/
CLip/Hide/Off/Undo/<eXit>: D
New camera/target distance <1.7321>: pick

Turning Perspective Off 

1. Choose View, 3D Dynamic View.
or
2. Type DVIEW at the command prompt.
Command: dview
Select objects: pick objects
Select objects: enter
CAmera/TArget/Distance/POints/PAn/Zoom/TWist/
CLip/Hide/Off/Undo/<eXit>: OFF