Copyright: Copyright © 1995 - Bruce A. Pennypacker
Citation: NaView Copyright © 1995 - Bruce A. Pennypacker.  All rights reserved.


NavView
NavView is a reference tool for the various light patterns and dayshapes listed in the 72 COLREGS.  These lights and dayshapes (as well as sound signals) form the foundation of an internationally recognized method of recognizing vessels and obstructions in various degrees of visibility.

Contents

Getting Started

Requirements for running NavView

Configuration Options

Viewing the Rules

Navigation Rules

About the Rules

International Rules

Inland Rules

Other Information

About the author

Copyright/License/Warrantee

Registration information

Navigation Rules publications

The United States Coast Guard Auxiliary

Program history


Dayshapes

One or more special geometric marks, such as a black diamond, that is hung aloft to indicate the type, state, or occupation of a vessel.  A single ball, for example indicates a vessel at anchor.  Dayshapes, as the term indicates, are used only during daylight conditions.


Light Patterns

A collection of one or more red, green, white, or yellow lights displayed by a vessel or other object in the water.  The number, pattern, and color of the lights indicate the type or purpose of the vessel or object, and can also indicate the direction in which the vessel is traveling.


Requirements for running NavView

NavView will run on any PC running Microsoft Windows 3.1, Windows 95, or Windows NT.  A color monitor is needed for displaying the various light patterns.  Unlike the companion program NavRules, NavView does not include sound signals.  As a result, no sound card is necessary for NavView.


Configuration options

Selecting the Options... choice from the File menu will display the following dialog box.  Click on the different parts of the dialog box for detailed descriptions:


Font

Select the font that will be used to display all the NavView text.  The color of the text can also be selected, and will be used to display the text in the upper left and right corners of the window when a light pattern is being shown.


Night Color

Select the color to use as a background when displaying light patterns and vessel silhouettes.  Black should not be used, otherwise the vessel silhouettes will not be visible.  Any color that your computer is capable of displaying can be selected. The default night color is dark purple.


OK

After all options have been selected, click on the OK button to permanently save the changes.  The changes will take effect immediately.


Cancel

Click on the Cancel button to abort any changes and return immediately to the main program.


Show Silhouettes of Vessels in Thumbnail Mode

Checking this option will display silhouettes of vessels along with their lights in the main NavView window.  This will slow down the display of light patterns in the main window.

This option has no effect on dayshapes in the main window.


Viewing Rules

To view the details of a rule simply double-click on the thumbnail view of the desired rule.  A new window will appear with the complete image, and a brief description of the rule below the image.  Multiple rules can be viewed simultaneously by simply double clicking on two or more  thumbnails.

The complete text of the associated inland rule or international rule can be seen by selecting the appropriate option from the help menu of the full sized image.


Program History

28 August 1995 - Version 1.0

Initial Release