JET(1D) — Silicon Graphics

NAME

jet − depthcued wireframe model of a jet fighter

SYNOPSIS

/usr/people/demos/jet

/usr/people/mexdemos/jet (GL2only)

DESCRIPTION

Jet displays a wireframe model of a jet airplane. The image includes 660 vectors and can be displayed with constant intensity or depth cueing. Operator controls adjust the viewing position and enable or disable depth cuing.

The standalone version uses as many colors as it can find on the system, upwards of 4000 different intensities can be available depending upon the configuration of the system. This is admittedly overkill. The standard window manager version of jet is depth cued using 32 gamma corrected shades of red.

Most of the user interface is through the mouse and its buttons. The mouse buttons control rotation about the x, y and z axes and viewer distance. Unless otherwise noted, the x-movement of the mouse is a significant valuator when holding down the mouse button.

Mouse buttonsFunction
leftrotation about x-axis through mouse x-motion
middlerotation about y-axis through mouse x-motion
right rotation about z-axis through mouse x-motion
left & middle translate object through mouse x & y motion
left & right zoom back
middle & rightzoom forward
allquit the program

The operator also uses some keyboard keys to control the jet.

KeyboardFunction
ENTERturn depth cueing on and off
mturn constant rotation on and off
up arrowdramatically increase range of depth cueing
right arrowincrease range of depth cueing
down arrowdramatically decrease range of depth cueing
left arrowdecrease range of depth cueing
ESCquit the program

DISPLAY OPTIONS (GL2 only)

Upon entry into the program, jet is set for NTSC or high resolution output, depending on the currently selected monitor. The display monitor can be altered during program execution by pressing the proper control character.

Key Display Monitor
CTRL-a60 HZ monitor
CTRL-b30 HZ monitor
CTRL-cNTSC (RS-170A) display
CTRL-dPAL (European Video) display

WINDOW MANAGER (GL2 only)

There is a window manager version of jet which runs without the aforementioned display options. If the jet is in constant motion, it stays in motion, even if the window is detached. The arrow keys (up, down, left and right) are not used in the window manager version of jet, because the window manager version uses a fixed, abridged color ramp for depth cueing.