2011

A slider bar along the top of the drawing area is labeled from 0x to 16x, with
1x representing the current distance. Moving the slider bar to the right
increases the distance between camera and target. Moving it to the left
decreases that distance. To turn off perspective viewing, click the Off option
from the main DVIEW prompt.
If the target and camera points are close together, or if you specify a
long-focal-length lens, you might see very little of your drawing when you
specify a new distance. If you see little or none of your drawing, try the
maximum scale value (16x) or enter a large distance. To magnify the drawing
without turning perspective viewing on, use the Zoom option of DVIEW.
The illustration shows the effect of moving the camera along the line of sight
relative to the target, where the field of view remains constant.
Points
Locates the camera and target points using X,Y,Z coordinates. You can use XYZ
point filters.
To help you define a new line of sight, a rubber-band line is drawn from the
current camera position to the crosshairs. You are prompted for a new camera
location.
A rubber-band line connects the target point to the crosshairs to help you
place the camera relative to the target. The illustration shows the change in
view as you swap the camera and target points. Lens and distance settings are
the same in each case.
384 | Chapter 5 D Commands