Digital Earth: TerraVision: User Guide


Topics
•	Getting Started
•	Cmd Line Opts
•	Tcl/Tk Version
•	X/Motif Version
	• File Menu
	• Views Menu
	• Logging Menu
	• Prefs Menu
	• Help Menu
•	NS Plugin Version
•	ActiveX Version
•	Configuration
•	Creating Data
•	OAA Interface

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Digital Earth > Terravision^TM > User Guide > X/Motif > "Help" Menu

The "Help" Menu

The TerraVision^TM help offers a number of options for finding out information about your current TerraVision^TM binary, as well locating information about how to use TerraVision, and finding the TerraVision^TM home page where new updates and materials are posted.

About

The About window of TerraVision^TM tells you various bits of useful information about the product that you have installed. For example, this is where you can find the version number of your current binary as well as its release date. Another useful display is a list of the modules that this binary was compiled with. Currently, the following modules may appear listed in your about window:

DPSS - if this module is displayed, then your TerraVision^TM binary has been compiled with support for reading tiled data from a DPSS ( Distributed-Parallel Storage System).
TRACING - if this module is displayed, then your TerraVision^TM binary has been compiled with tracing support. This means that the Debug entries in the File menu will output diagnostic tracing information to your shell. Otherwise these options will have no effect.
SPROC-PTHR - if this module is displayed, then your TerraVision^TM binary has been compiled using SRI's pthread emulation libary for the SGI range of workstations. If this module is not displayed, then the native pthread library was used.
CAVE - if this module is displayed, then your TerraVision^TM binary has been compiled with the CAVE library in order to enable it to display using a display supported by this library, e.g. the CAVE, ImmersaDesk, etc.

For example, the About window below tells us that this verion of TerraVision^TM is V4.0 and that it has been compiled with DPSS support and debug tracing enabled. We can also infer that it was compiled with the native pthreads library, and not SRI's sproc-based emulation layer.

License

When you first run TerraVision, and whenever you install and run a new version, then you will be presented with the TerraVision^TM License Agreement. You have to accept this agreement in order to use the TerraVision^TM system. This option will simply display the license again so that you may puruse its contents. Note that you can also force TerraVision^TM to present the license requester at start up by using the -license command line option.

Overview

This option will use a web browser installed on your machine in order to view a web page that gives an overview of the TerraVision^TM system. The URL of this page is


   http://www.tvgeo.com/pubs/overview/overview.html

User Guide

This option will use a web browser installed on your machine in order to view this user guide. This lets you access all of the information about using TerraVision^TM from within the application itself. By default, TerraVision^TM will use the Netscape web browser to display web pages. The URL of this user guide is


   http://www.tvgeo.com/user_guide/

TV Home Page

This option will use a web browser installed on your machine in order to view the TerraVision^TM home page. This is where all information about TerraVision^TM can be found, and it is also where the latest release can be downloaded from, as well a number of sample terrain datasets. By default, TerraVision^TM will use the Netscape web browser. The URL of the TerraVision^TM home page is:


   http://www.tvgeo.com/