NOAA NASA Pathfinder Climate Data CD-ROM

Revised: 1/1998

GeoVu for the Sun

Installing GeoVu Sun

GeoVu Sun is written for Motif 1.2 and X11R5. Disk space required to install GeoVu on the Sun is ~7.6 mb.

The file geovu_ta.z is a compressed tar file containing the GeoVu executable and associated files. Copy the file geovu_ta.z from the /software/geovu/unix_sun directory on the CD-ROM and place it where you want to install GeoVu on your hard drive. While installing GeoVu, note the location of the geovu directory. It will be necessary to manually copy files to this directory later in the installation process. To uncompress the file you must now rename it to geovu.tar.Z, uncompress and untar the file with the following commands:

cp geovu_ta.z geovu.tar.Z (Uncompress needs to have a capitol "Z")
uncompress geovu.tar.Z
tar xvf geovu.tar

This generates a "geovu/" directory and a simple file "g2". The "g2" file is an X applications defaults file to be put into your home ("~") directory. The "geovu" directory is what should be pointed to by the environment variable GEOVUDIR. For example, if you use the C Shell, put the following line in your .cshrc:

setenv GEOVUDIR ~/geovu

(Of course, this assumed you un-tar'd geovu.tar in your home directory - though this is not necessary)

Copy all files from the CD-ROM directory /software/geovu/unix_sgi/gv_misc to your GeoVu directory. The files copied from the CD-ROM are read only. To remove the read only attributes, run the command "chmod 777 *.men" in the GeoVu installation directory.

The GeoVu executable, "g2", is located in the GeoVu directory. See gvquick.* and gvhelp.* for details on using GeoVu.

Viewing Data with GeoVu

1. If already done in the instructions above, skip this step. Copy all the files from the directory on the CD-ROM /software/geovu/unix_sgi/gv_misc to the GeoVu installation directory on your hard drive. For GeoVu to run properly the read only attribute must be removed. To remove the read only attributes run the command "chmod 777 *.men" in the GeoVu installation directory.
2. Change directory (cd) to the GeoVu directory, then start GeoVu from the command line by entering "g2", then choose "Set Data..." from the File menu. The Data Source dialog is displayed. A Data Source is a collection of data files on a CD-ROM, hard disk, or diskette.
3. Change (if necessary) the path shown in the text box with the title "CD-drive or data's drive" to that of the drive where this CD-ROM is located.
4. Choose the file that you want to view; you may have to navigate (with double-clicks) through several menu levels. An Introduction screen is usually displayed first with some information about the data collection. If the data publisher has activated the automatic display function, the data file is displayed when you choose it. If not, you need to define a search.
5. Select Create from the Search menu to display the dialog or window in which you can set search criteria. For image data, the Image Search Parameters dialog is displayed; for point data, the Plots: Title window appears.
6. Set the criteria as you wish (specify geographic limits, display attributes, and so on), or click OK (image) or GO (point) to accept the defaults. The data are displayed in a new window.
7. You can now examine the data in more detail with the tools on the right side of the window, or open more data windows.