FLOW(1D) — Silicon Graphics

NAME

flow − display of complex scientific data base

SYNOPSIS

/usr/people/demos/flow

DESCRIPTION

Flow displays about 20,000 data points and a few vectors. The data is a three-dimensional display of the values of the Navier-Stokes equations for turbulent fluid flow in a channel. The calculation was done at NASA-Ames on, of all things, the Illiac-IV.

Simple mouse motions control the display. Press LEFTMOUSE, move the cursor, and release the button to redraw the image with new altitude and azimuth. Use MIDDLEMOUSE to control distance and twist. RIGHTMOUSE starts a sequence of 100 short twists. Any keyboard key switches the display from single-buffer mode (the initial state) to double-buffer mode or back.

DISPLAY OPTIONS

Upon entry into the program, flow is set for NTSC or high resolution output, depending on the currently selected monitor. Use CTRL-A to switch to 60 Hz non-interlaced video, CTRL-B to switch to 30 Hz interlaced video and CTRL-C to switch to low resolution, 30 Hz, RS-170A video, and CTRL-D to switch to low resolution, European 25 Hz video.

AUTHOR

Phil Gustafson