Scripting Guide - SAS

Chapter 13 Three-Dimensional Scenes 437
Changing the View
Figure 13.8 Rotating a Cylinder
Note the use of the Update command at the end of the scene messages. This command tells JMP to make
the displayed screen agree with the current state of the display list. It is important to clear the list at the
beginning (so the list does not contain the old angles as well as the current) and update the scene after each
change.
The Look At Command
The Look At command is an alternative way to set the camera view.
Look At( eyeX, eyeY, eyeZ, centerX, centerY, centerZ, upX, upY, upZ )
The Look At command puts the camera at the eye coordinates and points it toward the center
coordinates. The up vector describes how the camera is rotated on its line of sight. Because the model is
typically constructed at the origin, a JMP scene should have either a Look At or a Translate command
near its beginning to move the camera away from the origin.
First, clear the scene box of any commands from the previous frame.
scene