Zooms in or out in the perspective view by changing the camera field of view.
Zoom operates like changing the lens on a camera. A value smaller than the default is like using a telephoto lens, whereas a value larger than the default provides a wide angle lens effect.
You can use these sliders to define a view by positioning the camera. The eye position, view point position, and up vector
end point determine the view. These nine fields contain decimal numbers. They represent, from left to right, the X, Y, and
Z Coordinates for each of the three camera parameters. To see the camera as you modify it, use WindowDisplay > Toggles > Cameras
.
The Zoom slider also takes a decimal number which defines the angle of the field of view of the camera. Values must be positive in the range of 0.2 to 179.
For windows other than the Perspective window (orthographic), two of the three Eye and View values must be the same, and two of the three Eye and Up values must be the same. If they are all different, or are all the same, the results are unpredictable. This is because viewing operations on orthographic windows affect the window rather than the window’s camera.
