3D PERSPECTIVE DISPLAY
Macro: none.
Function: View image in 3-D perspective.
Parameters:
1. Filename and directory name.
2. Viewing parameters using choice items and text items, described on panel. Operational parameters using button items(B):
-- CLEAR(B): removes the ViewSurface window.
-- PARAM_OK(B): click to confirm parameter specification.
-- New image(B): display a new image.
-- QUIT(B): leave the tool.

