How to download the Planetary Motion Simulation lab
(for SGI systems running IRIX 6.2 or greater)

1) Left mouse click here to download string application planets.tar.gz (135K, compressed with gzip)

Enter the path name of where you want the planets.tar.gz file to be placed. Then click the OK button.
2) Go to the directory where you downloaded the planets.tar.gz file.

3) Unzip the file planets.tar.gz

% gunzip planets.tar.gz

This will produce the file planets.tar
4) Untar the file planets.tar

% tar -xvf planets.tar

This will produce the files: ABOUT, Planets.tcl, README, xplanets
and a directory images that contains some gif files.
5) Check the first line of the file planets.tcl

It will look like this: #!/go/local/bin/wish

This should point to the location of the wish code.
You may have to edit this line to reflect your systems setup.
6) To run the program execute Planets.tcl

% Planets.tcl
7) The files ABOUT and README describe the simulation and how to run it.

| Updated 11.04.1998 by Webmaster |