LOS User's Guide




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Table Of Contents For LOS

1.1 Scope

1.1.1 Identification

1.1.2 System Overview

1.1.3 Document Overview

1.2 Referenced Documents

1.2.1 Government Documents

1.2.1.1 Military Specifications

1.2.1.2 Military Standards

1.2.2 Non-Government Documents

1.2.2.1 Other Source Documents

1.3 Tutorials

1.3.1 TUTORIAL ONE: Starting Up and Shutting Down

1.3.2 TUTORIAL TWO: Creating a LOS Map Product

1.3.3 TUTORIAL THREE: Creating a LOS Profile Product

1.3.4 TUTORIAL FOUR: Saving a LOS product.

1.3.5 TUTORIAL FIVE: Saving a default LOS product.

1.3.6 TUTORIAL SIX: Modifying the LOS visibility sector geometry

1.3.7 TUTORIAL SEVEN: Setting a product range value. 1-10

1.3.8 TUTORIAL EIGHT: Setting the observer-to-target locations.

1.3.9 TUTORIAL NINE: Setting the Observer-to-target boresight with the mouse.

1.3.10 TUTORIAL TEN: Changing the Application preferences.

1.3.11 TUTORIAL ELEVEN: Changing the active window.

1.3.12 TUTORIAL TWELVE: Magnify(Reduce) the base map.

1.3.13 TUTORIAL THIRTEEN: Moving the observer to a precise DTED location.

1.4 Functions

1.5 Tips and Techniques

1.6 Sudden Surprisesand how to solve them

1.7 NOTES

1.7.1 Abbreviations

1.7.2 File Extensions

1.7.3 Glossary

1.7.4 User Notes



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Related NIMAMUSE Documents


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READ THIS FIRST!

This User Guide is aimed at helping you gain a quick understanding of thisproduct and it's capabilities. The intent is to provide you with a simpleand effective learning tool for the Line of Sight Application.

If all you need from this manual is to rapidly gain an ability to produceline of sight products of your own, skip to section 3, which is dedicatedto a step by step tutorial demonstration of the product. After followingthrough this section you should be capable of producing similar line of sightproducts from any data that you select.

If you only need to make reference to details of technical functions thenskip to section 4. However, this document is a User Guide, not a referencemanual, so the functions are only briefly listed in reference section 4.The functions are grouped in task and feature order. An alphabetic listingis included to assist more experienced users.

As you gain more experience and expertise in using the product, you willbenefit from the helpful descriptions of special techniques, hints and tipson scene generation included in section 5.

Eventually problems and errors may be encountered. We have included someuseful problem solving techniques in section 6.

If problems persist, DON'T PANIC! Collect all the relevant details and contactyour designated support personnel who are trained to help you. But remember,they need your patience and clear details of your problem.

Although every effort has been made to ensure that this product behaves wellon many platforms, be warned that TSR products can interfere with the memoryallocated by DOS/Windows, and so should be removed if you experience problemsrunning this application.

1.1Scope

The Line of Sight product enables you to quickly and easily determine thevisible and non-visible regions about a target as viewed from an observerposition. A topographic profile along the direct line of sight from observerto target can also be generated and visible or no-visible areas are displayedwith or without explicitly considering the uncertainties stemming from theterrain elevation data.

1.1.1 Identification

This document provides user-oriented information for understanding and useof the Line of Sight Application.

1.1.2 System Overview

This document provides the instructions necessary to construct Line of Sightproducts from valid MUSE compliant base map and digital terrain data operatingin Apple, Microsoft (MS) DOS, and UNIX system environments. The format ofthe documentation conforms to DOD-STD-2167A.

1.1.3 Document Overview

This document provides information necessary for using and/or maintainingthe standard Line of Sight software. This document has been organized into8 major sections with the first section providing the introduction, purpose,and scope of the User's Guide

Section 1

Section 1 presents the scope of this document, including identification ofthe applicable CSCI(s), their stated purpose, and a document overview.

Section 2

Section 2 lists the referenced documents in this User Guide.

Section 3

Section 3 describes a hands-on demonstration of the Line of Sight Application.

Section 4

Section 4 contains a list of Line of Sight functions.

Section 5

Section 5 provides information on additional techniques and useful examplesthat are helpful to the user in developing advanced Line of Sight products.

Section 6

Section 6 provides information on problem solving and diagnostic methodsthat are likely to be useful to a user in the early stages of developingexperience with the Line Of Sight Product.

Section 7

Section 7 is reserved for notes.

Section 8

Section 8 is a reference index.

1.2 ReferencedDocuments

1.2.1 Government Documents

The following Government documents are referenced within this User Guideor were used during its preparation.

1.2.1.1 Military Specifications

(None identified)

1.2.1.2 Military Standards

DOD-STD-2167A Military Standard for Defense System Software Development,dated 29 February 1988.

1.2.2 Non-Government Documents

The following Non-Government documents are referenced within this user manualor were used during its preparation.

1.2.2.1 Other Source Documents

No Control Number Mapping Charting & Geodesy (MC&G) Utility SoftwareEnvironment (MUSE) Programmer's Manual, March 2, 1992 (draft).

1.3Tutorials

The Line of Sight application has been constructed to provide a simple meansof generating Line of Sight products such as visibility maps and profiles,without you having to make complex calculations or drafting.

In this section you will perform a number of easy to follow tutorial examplesthat when completed will provide you with enough familiarity with the Lineof Sight Application that you can independently generate Line of Sight productsfrom MUSE level 1 data of your choice.

The Components

The functions in the Line of Sight Application are accessed through a graphicaluser interface(GUI) that makes it easy for a skilled or novice user aliketo build line of sight products.

The Graphical User Interface (GUI)

All of what you see and do in the GUI operates in a window.

The GUI itself has four visible windows:

However, all that is necessary to generate a Line of Sight product afterstarting the application is that you have access to a valid base map. Theapplication will place you in the GUI, will allow you to generate the Lineof Sight product, and automatically display the result.

Most of your time will be spent in the Data Entry and the Base Map DisplayWindows.

The MENU BAR is your primary access to all the menu commands. The only timethat the MENU BAR is not visible is when you are viewing the program's output,or if you have moved another window and obscured it. You will see a highlightedmenu item when the menu bar is active; that menu title is the currently selecteditem.

If the menu command is followed by an ellipsis(...) choosing the commandwill result in a dialog box. If the command is followed by an arrow, thenthe command leads to another menu (a DROP DOWN menu). If the command hasneither an ellipsis or an arrow, the action occurs as soon as you choosethe command.

The Line of Sight application uses only the left mouse button.

You use a mouse to choose a command either by:

1) double clicking the desired menu item in a list box, in a dialog box,or

2) Selecting the desired menu item(single click) and then activating(singleclick) the appropriate button in the same dialog box.

Note that some menu commands are unavailable when it would make no senseto use them. However, you can still get on-line help about temporarilyunavailable commands.

1.3.1 TUTORIAL ONE: Starting Up and ShuttingDown

Starting up the application may be the hardest part. How you run the Lineof Sight application depends on the platform on which you are running. Thereare three likely ways that you can start the 3D perspective application.

If an application icon is available

STEP 1: On Windows platforms the application will most likely be accessiblefrom an icon. Merely double click on the icon to launch the application.

If an application icon is notavailable

STEP 1: Under Windows you can start the application by entering File Manager,going to the directory muse_cd\muse\win3.xin and double clicking on LOS.EXE.

Under the SUN o/s you can start the program by typingmuse_cd/muse/sun/bin/los.exe.

You can be sure that the application has successfully been started if a messagebox entitled Line of Sight Release Version 1.0 is displayed on the screen.

To shut the application down move the cursor to the FILE item on the mainmenu bar, click and hold the mouse button down, highlight the EXIT item,and release the mouse button.

1.3.2 TUTORIAL TWO: Creating a LOS MapProduct

In this tutorial you will learn how to create a Line of Sight Map Product,without the need for any complex instructions.

STEP 1: Start up the application as in Tutorial One. You will know that theapplication has started successfully because the About box for the applicationwill be displayed.

STEP 2: Click on the OK button to move on to the main window of the application.You can be sure that you have moved on successfully when the message boxis erased and the MENU BAR is displayed with the FILE option highlighted.

STEP 3: Select FILE|Load Raster Image to select a raster image base map.

A DROP DOWN menu displays the currently supported raster image formats. Inthis version of the software you must have some knowledge of the currentlyavailable basemap images and the formats in which they are stored.

STEP 4: Select the image type

A File list dialogue box titled "Please Locate the filename file" is displayed( where filename is the name of the relevant file).

STEP 5: Select the directory MUSE/DATA/TERRAIN from the file list box.

The available base map images with the currently selected format, are displayedin the list box.

STEP 6: Select the image file.

Remember that you can do this by either double clicking on the item in thelist box, or select the item in the list box and then clicking on the OKbutton.

A window titled "Base Map Status" is displayed. Messages that refer to theprogress of loading the base map image and Digital Terrain Elevation (DTED)data are displayed on the baseline of this window.

Once the base map image is loaded, the base map is displayed in the BaseMap Window.

The application automatically compares the coverages of the base map andits associated DTED. A warning message is displayed if the base map imagesand DTED do not geographically overlap in any way. Since base map imagesand DTED are not supplied as standard matched sets you may be frequentlypresented with this message. Continue on with the procedure.

STEP 7: Select the OK button.

A window titled "Data Entry" is displayed. In the future, this will playan important role in your creation of the LOS products. But for this initialexample, the window will serve only to display details about theobserver-to-target relationship.

At this stage the base map is updated with the observer to target boresighttool, a diagram that greatly helps you select the location of the line ofsight that you wish to analyze.

The observer-to-target boresight is made up of a blue dot which is the locationof the target , and a red dot which is the observer location on the basemap connected by a yellow arrow. The observer-to-target boresight is theset of colored dot symbols at the observer and target locations joined bythe arrow.

The separate observer and target positions can be moved around the imageusing the tools in the Data Entry window and so used very effectively inthe selection of line of sight products. However, for this first examplewe will take the system defaults.

By default the observer is located in the center of the base map, the targetis located at an azimuth of 225 degrees (clockwise from north) from the targetand at a default distance of one half the diagonal distance from the observerto the south west corner of the base map. The default visibility sector isinitially 360 degrees so a circular visibility diagram will be generated.

To create a default Line of Sight product:

STEP 8: Select the LOS button in the Data Entry window.

At this point the application has checked and ensured coincident samples.

You can be sure that the process of creating a Line of Sight product hasbegun when a message "Building Line of Sight Product" appears in the BaseMap Status window.

The application is computing the line of sight product at this time and dependingon the platform and size of data files can remain calculating for some time.

To increase your confidence that the application is indeed at work buildingthe line of sight product, a number of progress messages may be displayedon the Base Map Status base line which indicate the proportion of the taskcompleted. You need do no more at this stage - simply wait for completion.

A visibility sector diagram is drawn over the base map in the vicinity ofthe observer on completion of the LOS process. An hour glass cursor(systemdependent) indicates a pause as the base map is updated with the visibilitysector fan, a diagram that greatly helps you visualize the terrain visibilityfrom the observer. Nothing outside the fan will be included in the visibilityproduct created.

The visibility sector diagram is made up of a set of colored hatched symbolsthat together define a sector of a circle with a radius specified by therange-to-target variable. The center of the visibility sector diagram islocated over the blue dot which is part of the observer-to-target boresightand symbolizes the observer location on the base map.

Depending on the checked option, the visibility sector diagram can be shadedby two conventions.

If the visibility check box in the Data Entry window was selected then thediagram will be composed of definitely visible(green) and definitely hidden(red)hatching with the base map underneath.

If the visibility probability check box in the Data Entry window was selectedthen the diagram will be composed of definitely visible(green), probablyvisible(yellow), probably hidden (magenta), and definitely hidden(red) hatchingwith the base map underneath.

1.3.3 TUTORIAL THREE: Creating a LOS ProfileProduct

In this tutorial you will learn how to create a Line of Sight Profile Product.

STEP 1: Start up the application as in Tutorial One. You will know that theapplication has started successfully because the About box for the applicationwill be displayed.

STEP 2: Click on the OK button to move on to the main window of the application.You can be sure that you have moved on successfully when the message boxis erased and the MENU BAR is displayed with the FILE option highlighted.

STEP 3: Select FILE|Load Raster Image to select a raster image base map.

A DROP DOWN menu displays the currently supported raster image formats. Inthis version you must have some knowledge of the currently available basemapimages and the formats in which they are stored.

STEP 4: Select the image type

A File list dialog box titled "Please Locate the filename file" is displayed( where filename is the name of the relevant file).

STEP 5: Select the directory MUSE/DATA/TERRAIN from the file list box.

The available base map images with the currently selected format, are displayedin the list box.

STEP 6: Select the image file.

Remember that you can do this by either double clicking on the item in thelist box, or select the item in the list box and then clicking on the OKbutton.

A window titled " Base Map Status" is displayed. Messages that refer to theprogress of loading the base map image and Digital Terrain Elevation (DTED)data are displayed on the baseline of this window.

Once the base map image is loaded, the base map is displayed in the BaseMap Window.

The application automatically compares the coverages of the base map andits associated DTED. A warning message is displayed if the base map imagesand DTED do not geographically overlap. Since base map images and DTED arenot supplied as standard matched sets you are frequently presented with thismessage. Do not be concerned, but simply continue with the procedure.

STEP 7: Select the OK button.

A window titled "Data Entry" is displayed. In the future, this will playan important role in your creation of the locations of observer and target.But for this initial example, the window will serve only to display detailsabout the observer to target relationship.

At this stage the base map is updated with the observer to target boresighttool, a diagram that greatly helps you select the location of the line ofsight that you wish to analyze.

In more detail, the observer-to-target boresight is made up of a blue dotwhich is the location of the target , and a red dot which is the observerlocation on the base map. The observer-to-target boresight is the arrowheadline drawn between the observer and target locations.

The observer-to-target boresight tool, together with the separate observerand target positions can be moved around the image using the tools in theData Entry window and so used very effectively in the selection of line ofsight. However, for this first example we will take the system defaults wherethe observer is located in the center of the base map, the target is locatedat an azimuth of 225 degrees from the observer and at a default distanceof one half the diagonal distance from the observer to the south west cornerof the base map. A numerical display of the azimuth can be seen in the BasemapStatus window while the icons for observer or target are dragged by depressingthe mouse button.

STEP 8: To create a default Line of Sight product:

Select the PROFILE button in the Data Entry window.

A message box is displayed informing the user that the azimuth start-endand the range to target variables were determined by the application.

STEP 9: Select the OK button

You can be sure that the process of creating a Line of Sight product hasbegun when a message "Building Profile Product" appears in the Base Map Statuswindow.

The application is computing the line of sight along the profile at thistime, and depending on the platform and size of data files, can remaincalculating for some time.

To increase your confidence that the application is indeed at work buildingthe line of sight product a number of progress messages may be displayedwhich indicate the proportion of the task completed. You need do no moreat this stage.

On completion of the LOS process the terrain profile of elevation versusrange-to-target, color-coded by visibility, is displayed along the line fromthe observer to the target. An hour glass cursor indicates a pause as thefinal scene is loaded and displayed.

1.3.4 TUTORIAL FOUR: Saving a LOSproduct.

In this tutorial you will learn how to save a Line of Sight Product as anewly named file, and then return to the GUI.

STEP 1: Create a default Line of Sight product set as in tutorial two andthree.

STEP 2: Select File menu item from the Line of Sight Main menu.

This displays a POP-UP menu that lists options for loading and saving imagefiles.

STEP 3: Select the "Save As" Menu item.

A dialogue box is displayed with a default file name, usually named"DEFAULT.LOS". You can save the scene image as that name, which will writeover any previous file of that name, or you can move the cursor into thetext window and enter a new name.

STEP 4: Select the OK button to save the file.

1.3.5 TUTORIAL FIVE: Saving a default LOSproduct.

In this tutorial you will learn how to save a Line of Sight Product as anewly named file, and then return to the GUI. In order to keep the tutorialsimple it is assumed that you have already created a line of sight product.

STEP 1: Create a default Line of Sight product set as in tutorial two andthree.

STEP 2: Select File menu item from the Line of Sight Main menu.

This displays a POP-UP menu that lists options for loading and saving imagefiles.

STEP 3: Select the "Save" Menu item.

A message box is displayed with a file named basemap name.LOS. The line ofsight product was saved as that name, and a previous file with that namewill be over-written.

STEP 4: Select the OK button to continue.

1.3.6 TUTORIAL SIX: Modifying the LOS visibilitysector geometry

In this tutorial you will learn how to control and modify the visibilitysector geometry for the line of sight.

STEP 1: Start up the application as in Tutorial One. You will know that theapplication has started successfully because the About box for the applicationwill be displayed.

Click on the OK button to move on to the main window of the application whenthe message box is erased and the MENU BAR is displayed with the FILE optionhighlighted.

As in the previous tutorials, chose a raster image base map.

STEP 2: Select FILE|Load Raster Image

A DROP DOWN menu displays the currently supported raster image formats. Inthis version you must have some knowledge of the currently available basemapimages and the formats in which they are stored.

Note: A DROP DOWN menu remains displayed as long as the left most mouse buttonis depressed.

A File list dialog box titled "Please Locate the filename file"

is displayed.

STEP 3: Select the directory MUSE/DATA/TERRAIN from the file list box.

The available base map images with the currently selected format, are displayedin the list box.

STEP 4: Select the image. You can do this by either double clicking on theitem in the list box, or select the item in the list box and then clickingon the OK button.

A window titled " Base Map Status" is displayed. Messages that refer to theprogress of loading the base map image and Digital Terrain Elevation (DTED)data are displayed on the baseline of this window.

Once the base map image is loaded, the base map is displayed in the BaseMap Window.

STEP 5: Select the OK button.

A window titled "Data Entry" is displayed. This will now play an importantrole in your creation of the visibility sector for the line of sight.

STEP 6: Updating the visibility sector to create a LOS map product:

You can produce very informative LOS products (LOS and Profile) by usingthe default observer-to-target positions. However, you cannot create usefulline of sight products without modifying the visibility sector.

The Data Entry window provides two variables that can be used to change thescene. These variables can be changed by editing in their corresponding textstrings.

Azimuth Start: The starting peripheral margin of the visibility sector fromthe user.

This is changed only by keyboard text edits.

Azimuth End: The ending peripheral margin of the visibility sector from theuser.

This is changed only by keyboard text edits.

The size of the visibility sector influences the time taken in the computationof the LOS map product.

Wide visibility sectors can result in long calculations.

Narrow fields of view that are less than about 60 degrees generate LOS productsvery rapidly.

In this version, as you change the azimuth values, the visibility sectorwill not be updated on the base map.

STEP 7: Before you forget, move the mouse cursor to the UPDATE button andclick.

This action updates the observer-to-target fan tool, and a new fan diagramis drawn on the base map indicating the visible and non-visible regions inthe scene.

STEP 8: Select the LOS(PROFILE) button in the Data Entry window.

The application will create an LOS(Profile) product as in tutorials two andthree.

1.3.7 TUTORIAL SEVEN: Setting a product rangevalue.

In this tutorial you will learn the effect of changing the radius of theproduct value on the visibility sector diagram radius and on compute times.

STEP 1: Start up the application as in Tutorial One. You will know that theapplication has started successfully because the About box for the applicationwill be displayed.

Click on the OK button to move on to the main window of the application whenthe message box is erased and the MENU BAR is displayed with the FILE optionhighlighted.

As in the previous tutorials, chose a raster image base map.

STEP 2: Select FILE|Load Raster Image

A DROP DOWN menu displays the currently supported raster image formats. Inthis version you must have some knowledge of the currently available basemapimages and the formats in which they are stored.

A File list dialogue box titled "Please Locate the filename file" is displayed.

STEP 3: Select the directory MUSE/DATA/TERRAIN from the file list box.

The available base map images with the currently selected format, are displayedin the list box.

STEP 4: Select the image. You can do this by either double clicking on theitem in the list box, or select the item in the list box and then clickingon the OK button.

A window titled " Base Map Status" is displayed. Messages that refer to theprogress of loading the base map image and Digital Terrain Elevation (DTED)data are displayed on the baseline of this window.

Once the base map image is loaded, the base map is displayed in the BaseMap Window.

Remember that the application automatically compares the coverages of thebase map and its associated DTED and will issue a warning message if thebase map images and DTED do not geographically overlap.

STEP 5: Select the OK button.

A window titled "Data Entry" is displayed.

STEP 6: Updating the range variable by keyboard entry.

Move the mouse cursor to the range box and click on the text string. Modifythe range by increasing the range number by about an order of magnitude.This is easiest to do if you simply click on the leftmost text position andtype in a number.

STEP 7: Before you forget, move the mouse cursor to the UPDATE button andclick.

This action updates the observer-to-target boresight tool, and a new boresightdiagram is drawn on the base map indicating the current Line of Sight.

The Data Entry window provides keyboard edit access to five other variablesthat can be used to change the Line of Sight and obtain feed-back to theuser.

Each time the UPDATE button is selected the updated observer-to-target boresighttool is displayed on the base map.

STEP 8: Select the LOS(PROFILE) button in the Data Entry window.

The application will create an LOS(Profile) product as in tutorials two andthree.

1.3.8 TUTORIAL EIGHT: Setting theobserver-to-target locations.

In this tutorial you will learn how to change the target and the observerpositions by using the keyboard in the Data Entry window.

STEP 1: Start up the application as in Tutorial One. You will know that theapplication has started successfully because the About box for the applicationwill be displayed.

Click on the OK button to move on to the main window of the application whenthe message box is erased and the MENU BAR is displayed with the FILE optionhighlighted.

As in the previous tutorials, chose a raster image base map.

STEP 2: Select FILE|Load Raster Image

A DROP DOWN menu displays the currently supported raster image formats. Inthis version you must have some knowledge of the currently available basemapimages and the formats in which they are stored.

Note: A DROP DOWN menu remains displayed as long as the left most mouse buttonis depressed.

A File list dialogue box titled "Please Locate the filename file"

is displayed.

STEP 3: Select the directory MUSE/DATA/TERRAIN from the file list box.

The available base map images with the currently selected format, are displayedin the list box.

STEP 4: Select the image. You can do this by either double clicking on theitem in the list box, or select the item in the list box and then clickingon the OK button.

A window titled " Base Map Status" is displayed. Messages that refer to theprogress of loading the base map image and Digital Terrain Elevation (DTED)data are displayed on the baseline of this window.

Once the base map image is loaded, the base map is displayed in the BaseMap Window.

Remember that the application automatically compares the coverages of thebase map and its associated DTED and will issue a warning message if thebase map images and DTED do not geographically overlap.

STEP 5: Select the OK button.

A window titled "Data Entry" is displayed. This will now play an importantrole in your creation of the view points of generated scenes. The base mapis updated with the observer-to-target boresight tool, a diagram that greatlyhelps you select the Line of Sight that you wish to create.

See Tutorial 2 for details of the observer-to-target boresight tool. Theobserver-to-target boresight tool, together with the observer and targetpositions can be moved around the image by changing the controls in the DataEntry window.

STEP 6: Update the Target(Observer) on the base map.

by first moving the cursor into the appropriate text box in the Data Entrywindow.

STEP 7: From the keyboard enter the coordinates of the new Target(Observer)location.

STEP 8: Before you forget, move the mouse cursor to the UPDATE button andclick.

This action updates the observer-to-target location boresights, and a newdiagram is drawn on the base map indicating their current locations.

The Data Entry window provides keyboard edit access to other variables thatcan be used to change the Line of Sight and obtain feed-back to the user.

Each time the UPDATE button is selected the updated observer-to-target boresighttool is re displayed on the base map.

STEP 10: Select the LOS(PROFILE) button in the Data Entry window.

The application will create an LOS(Profile) product as in tutorials two andthree.

1.3.9 TUTORIAL NINE: Setting the Observer-to-targetboresight with the mouse.

In this tutorial you will learn how to interactively change the target andthe observer positions by using the mouse. This is the most convenient methodavailable to change the locations and you should practice this method.

STEP 1: Start up the application as in Tutorial One. You will know that theapplication has started successfully because the About box for the applicationwill be displayed.

Click on the OK button to move on to the main window of the application whenthe message box is erased and the MENU BAR is displayed with the FILE optionhighlighted.

As in the previous tutorials, chose a raster image base map.

STEP 2: Select FILE|Load Raster Image

A DROP DOWN menu displays the currently supported raster image formats. Inthis version you must have some knowledge of the currently available basemapimages and the formats in which they are stored.

A File list dialogue box titled "Please Locate the filename file" is displayed.

STEP 3: Select the directory MUSE/DATA/TERRAIN from the file list box.

The available base map images with the currently selected format, are displayedin the list box.

STEP 4: Select the image. You can do this by either double clicking on theitem in the list box, or select the item in the list box and then clickingon the OK button.

A window titled " Base Map Status" is displayed. Messages that refer to theprogress of loading the base map image and Digital Terrain Elevation (DTED)data are displayed on the baseline of this window.

Once the base map image is loaded, the base map is displayed in the BaseMap Window.

Remember that the application automatically compares the coverages of thebase map and its associated DTED and will issue a warning message if thebase map images and DTED do not geographically overlap.

STEP 5: Select the OK button.

A window titled "Data Entry" is displayed.

See Tutorial 2 for details of the observer-to-target boresight tool. Theobserver-to-target boresight tool, together with the observer and targetcan be moved around the base map by changing the controls in the Data Entrywindow.

STEP 6: Update the Target(Observer) on the base map.

by first moving the cursor into the base map window.

The cursor will change from an arrow to a cross. As you move the cursor aroundthe base map that has underlying DTED coverage, you will get real-time feedbackof the elevations at the DTED nodes on the base line of the base map statuswindow.

STEP 7: To latch onto the Target(Observer) move the cursor to the red(blue)colored symbol marking the location of the point-of-interest(observer). Clickthe mouse when the cursor is over the symbol. The cross-shaped cursor willchange to a square, indicating that you have latched on to the location.

STEP 8: To update the location, still holding the mouse button down, movethe center of the square cursor to the desired location and release the mousebutton.

STEP 9: Before you forget, if you have entered any data in the Data Entrywindow, move the mouse cursor to the UPDATE button and click.

This action updates the observer-to-target boresight tool, and a new boresightdiagram is drawn on the base map indicating the current Line of Sight.

The Data Entry window provides keyboard edit access to other variables thatcan be used to change the scene and obtain feed-back to the user.

Each time the UPDATE button is selected the updated observer-to-target boresighttool is displayed on the base map.

STEP 10: Select the LOS(PROFILE) button in the Data Entry window.

The application will create an LOS(Profile) product as in tutorials two andthree.

1.3.10 TUTORIAL TEN: Changing the Applicationpreferences.

In this tutorial you will learn how to interactively change the ApplicationPreferences menu. If you make changes to the user preferences they can besaved or reset at any time.

STEP 1: Start up the application as in Tutorial One. You will know that theapplication has started successfully because the About box for the applicationwill be displayed.

Click on the OK button to move on to the main window of the application whenthe message box is erased and the MENU BAR is displayed with the FILE optionhighlighted.

STEP 2: Select FILE|Preferences|System Settings, or |Target/Observer Indicators.

A Dialogue box displays the currently supported user preference library.

STEP 3: Select the available options by clicking on the selected radio buttons.

User preferences such as the elevation reference datum, units of distancemeasure, geodetic coordinate format, and indicator display variables canall be changed.

STEP 4: Select the SAVE button to save the current preferences.

1.3.11 TUTORIAL ELEVEN: Changing the activewindow.

In this tutorial you will learn how to pick the available current windowthat is displayed uppermost.

STEP 1: Start up the application as in Tutorial One. You will know that theapplication has started successfully because the About box for the applicationwill be displayed.

Click on the OK button to move on to the main window of the application whenthe message box is erased and the MENU BAR is displayed with the FILE optionhighlighted.

As in the previous tutorials, chose a raster image base map.

STEP 2: Select FILE|Load Raster Image

A DROP DOWN menu displays the currently supported raster image formats. Inthis version you must have some knowledge of the currently available basemapimages and the formats in which they are stored.

A File list dialogue box titled "Please Locate the filename file" is displayed.

STEP 3: Select the directory MUSE/DATA/TERRAIN from the file list box.

The available base map images with the currently selected format, are displayedin the list box.

STEP 4: Select the image. You can do this by either double clicking on theitem in the list box, or select the item in the list box and then clickingon the OK button.

A window titled " Base Map Status" is displayed. Messages that refer to theprogress of loading the base map image and Digital Terrain Elevation (DTED)data are displayed on the baseline of this window.

Once the base map image is loaded, the base map is displayed in the BaseMap Window.

Remember that the application automatically compares the coverages of thebase map and its associated DTED and will issue a warning message if thebase map images and DTED do not geographically overlap.

STEP 5: Select the OK button.

A window titled "Data Entry" is displayed. This will now play an importantrole in your creation of the view points of generated scenes. The base mapis updated with the observer-to-target boresight tool.

STEP 6: Select VIEW

A DROP DOWN menu displays the currently available windows.

STEP 7: Select the menu item for the available window that you wish to becomeuppermost in the Application Desktop.

The selected window is drawn uppermost in the Desktop and becomes the activewindow and so able to receive input.

1.3.12 TUTORIAL TWELVE: Magnify(Reduce) thebase map.

In this tutorial you will learn how to magnify(reduce) by a factor of twothe current base map window - the so called zoom-in(zoom-out). This is usefulfor examining detailed(over-view) areas of the base map.

STEP 1: Start up the application as in Tutorial One. You will know that theapplication has started successfully because the About box for the applicationwill be displayed.

Click on the OK button to move on to the main window of the application whenthe message box is erased and the MENU BAR is displayed with the FILE optionhighlighted.

As in the previous tutorials, chose a raster image base map.

STEP 2: Select FILE|Load Raster Image

A DROP DOWN menu displays the currently supported raster image formats. Inthis version you must have some knowledge of the currently available basemapimages and the formats in which they are stored.

A File list dialogue box titled "Please Locate the filename file" is displayed.

STEP 3: Select the directory MUSE/DATA/TERRAIN from the file list box.

The available base map images with the currently selected format, are displayedin the list box.

STEP 4: Select the image. You can do this by either double clicking on theitem in the list box, or select the item in the list box and then clickingon the OK button.

A window titled " Base Map Status" is displayed. Messages that refer to theprogress of loading the base map image and Digital Terrain Elevation (DTED)data are displayed on the baseline of this window.

Once the base map image is loaded, the base map is displayed in the BaseMap Window.

Remember that the application automatically compares the coverages of thebase map and its associated DTED and will issue a warning message if thebase map images and DTED do not geographically overlap.

STEP 5: Select the OK button.

A window titled "Data Entry" is displayed.

STEP 6: Select the LOS(PROFILE) button in the Data Entry window.

The application is within the LOS calculation at this time and dependingon the platform and size of data files can remain calculating for some time.On a PC 486-33 this might take a minute or so.

On completion, the visibility sector(profile graph) is displayed on the basemap(window). An hour glass cursor indicates a pause as the final scene isloaded and displayed.

STEP 7: Select VIEW

A DROP DOWN menu displays the currently available windows.

STEP 8: Select the menu item for the base map to become uppermost in theApplication Desktop.

The selected base map window is re-drawn uppermost in the Desktop.

STEP 9: Select the Zoom-In(Zoom-Out) menu item for the enlarged (reduced)basemap to be displayed uppermost in the Application Desktop.

1.3.13 TUTORIAL THIRTEEN: Moving the observerto a precise DTED location.

In this tutorial you will learn how to access a 5 x 5 matrix of DTED in thenear vicinity of the current observer position, and modify the observer'slocation to minimize the effects of local relief in obscuring the line ofsight.

STEP 1: Start up the application as in Tutorial One. You will known thatthe application has started successfully because the About box for theapplication will be displayed.

STEP 2: Click on the OK button to move on to the main window of the application.You can be sure that you have moved on successfully when the message boxis erased and the MENU BAR is displayed with the FILE option highlighted.

STEP 3: Select FILE|Load Raster Image to select a raster image base map.

A DROP DOWN menu displays the currently supported raster image formats. Inthis version you must have some knowledge of the currently available basemapimages and the formats in which they are stored.

Note: A DROP DOWN menu remains displayed as long as the left most mouse buttonis depressed.

STEP 4: Select the image type

A File list dialogue box titled "Please Locate the filename file"

is displayed ( where filename is the name of the relevant file).

STEP 5: Select the directory MUSE/DATA/TERRAIN from the file list box.

The available base map images with the currently selected format, are displayedin the list box.

STEP 6: Select the image file.

Remember that you can do this by either double clicking on the item in thelist box, or select the item in the list box and then clicking on the OKbutton.

A window titled " Base Map Status" is displayed. Messages that refer to theprogress of loading the base map image and Digital Terrain Elevation (DTED)data are displayed on the baseline of this window.

Once the base map image is loaded, the base map is displayed in the BaseMap Window.

STEP 7: Select the OK button.

A window titled "Data Entry" is displayed.

STEP 8: Select the "PRECISE LOC" button.

STEP 9: Select the LOS(PROFILE) button.

At this stage a 5 x 5 matrix of DTED is displayed in a dialog box, togetherwith the observer elevation, a diagram that greatly helps you select thelocation of the highest local DTED node in close vicinity of the observer'slocation.

The commonest problem encountered in the generation of line of sight productis the location of the observer in a local depression, which results in thebulk of the visibility sector being displayed as hidden.

In order to minimize this problem, browse the local DTED nodes and move theobserver to a new location that has the highest local elevation, if necessary.

STEP 10: Select the LOS(PROFILE) button.

The application will create an LOS(Profile) product as in tutorials two andthree.

1.4Functions

Function: FILE

Purpose: Load image files

Menu Item: Main

Syntax:

Window: GUI|Main Menu Bar

Remarks: Provides file manipulation functions.

Sub Menu:

See Also:

Example:

Function: FILE|Load Raster Image

Purpose: Load image files

Menu Item: Main

Syntax:

Window: GUI|Main Menu Bar

Remarks: Provides user ability to select supported image formats.

Sub Menu: Load Raster Image

See Also:

Example: On starting application user must perform initial selectionof base map image.

Function: FILE|Open Saved Product

Purpose: Opens a previously saved LOS product

Menu Item: Main

Syntax:

Window: GUI|Main Menu Bar

Remarks: Provides user ability to reload a previously built and savedprofile.

Sub Menu:

See Also:

Example: On loading new image user must close previously displayedbase map image.

Function: FILE|Close Map

Purpose: Closes currently loaded image files

Menu Item: Main

Syntax:

Window: GUI|Main Menu Bar

Remarks: Provides user ability to close old image and select new image.

Sub Menu:

See Also: Load Raster Images

Example: On loading new image user must close previously displayedbase map image.

Function: FILE|Save Product

Purpose: Save the current LOS product as the name of the base mapwith a suffix .los.

Menu Item: Main

Syntax:

Window: GUI|Main Menu Bar

Remarks: Provides user ability to save a profile for future use.

Sub Menu:

See Also:

Example: On loading new image user must close previously displayedbase map image.

Function: FILE|Save Product As

Purpose: Save the current LOS product

Menu Item: Main

Syntax:

Window: GUI|Main Menu Bar

Remarks: Provides user ability to save a user named profile for futureuse.

Sub Menu:

See Also:

Example: On loading an old base map user wishes to reload previouslybuilt profile.

Function: FILE|Preferences|System Settings

Purpose: Selects user preferred input units and system defaults

Menu Item: FILE|Preferences

Syntax:

Window: GUI|Main Menu Bar

Remarks: Provides user ability to work in currently available degreeunits, elevations as AMSL or AGL, and distance units as meters or feet.

Sub Menu:

See Also:

Example: User modifies system preferences at start up.

Function: FILE|Preferences|Target/Observer Indicators

Purpose: Selects user preferred indicator color and shape defaults

Menu Item: FILE|Preferences

Syntax:

Window: GUI|Main Menu Bar

Remarks: Provides user ability to work with currently available observerand POI symbols, and the color of the bore sight vector.

Sub Menu:

See Also:

Example: User modifies system preferences at start up.

Function: FILE|About

Purpose: Provides Version and release information

Menu Item: FILE|Preferences

Syntax:

Window: GUI|Main Menu Bar

Remarks: User can obtain current version information for supportreference.

Sub Menu:

See Also:

Example: User requires version and release information for productsupport.

Function: FILE|Quit

Purpose: Controlled exit from Application

Menu Item: FILE

Syntax:

Window: GUI|Main Menu Bar

Remarks: User can exit from application.

Sub Menu:

See Also:

Example: User ends session.

Function: RESET

Purpose: Resets system settings

Menu Item: RESET

Syntax:

Window: GUI|Main Menu Bar

Remarks: Resets original system settings or returns to last userpreference settings or removes product display.

Sub Menu:

See Also:

Example: User wishes to return to previous system settings.

Function: RESET|Original Base Map Settings

Purpose: Resets to original system settings

Menu Item: Reset

Syntax:

Window: GUI|Main Menu Bar

Remarks: Resets original system settings.

Sub Menu:

See Also:

Example: User wishes to return to original system settings.

Function: RESET|Last Product Settings

Purpose: Resets to previous user preference settings

Menu Item: Reset

Syntax:

Window: GUI|Main Menu Bar

Remarks: Restores last user preference settings.

Sub Menu:

See Also:

Example: User wishes to return to previous user preference settings.

Function: RESET|Remove Product Display

Purpose: Removes line of sight shaded areas from the base map.

Menu Item: Reset

Syntax:

Window: GUI|Main Menu Bar

Remarks: Restores a base map to it's initial condition.

Sub Menu:

See Also:

Example: User wishes to return to initial base map.

Function: View

Purpose: Provides method to change viewing variables.

Menu Item: View

Syntax:

Window: GUI|Main Menu Bar

Remarks: Brings uppermost the selected window.

Sub Menu:

See Also:

Example: User wishes to make visible an obscured window.

Function: VIEW|Data Entry Window

Purpose: Selects Data Entry Window as upper most window of the GUI.

Menu Item: View

Syntax:

Window: GUI|Main Menu Bar

Remarks: Brings uppermost selected window.

Sub Menu:

See Also:

Example: User wishes to make visible an obscured Data Entry Windowfor scene generation. This is necessary for the window to be available fordata entry.

Function: VIEW|Base Map Window

Purpose: Selects Base Map Window as upper most window of GUI.

Menu Item: View

Syntax:

Window: GUI|Main Menu Bar

Remarks: Brings uppermost selected window.

Sub Menu:

See Also:

Example: User wishes to make visible an obscured Base Map Window forviewing the scene.

Function: VIEW|Base Map Status Window

Purpose: Selects Base Map Status Window as upper most window of GUI.

Menu Item: View

Syntax:

Window: GUI|Main Menu Bar

Remarks: Brings uppermost selected window.

Sub Menu:

See Also:

Example: User wishes to make visible an obscured Base Map Status Windowfor viewing DTED elevations in the base map.

Function: VIEW|Zoom In

Purpose: Provides 2X enlargement of Base Map.

Menu Item: View

Syntax:

Window: GUI|Main Menu Bar

Remarks: Enlarges portion of selected window.

Sub Menu:

See Also:

Example: User wishes to enlarge a part of the base map.

Function: VIEW|Zoom Out

Purpose: Provides 0.5 X reduction of the Base Map.

Menu Item: View

Syntax:

Window: GUI|Main Menu Bar

Remarks: Enlarges portion of selected window .

Sub Menu:

See Also:

Example: User wishes to enlarge a part of the base map.

Function: Locate Image Filename

Purpose: Locates image file through file dialogue box.

Menu Item: Load Raster Images

Syntax:

Window: GUI|load raster image

Remarks: Standard File Dialogue Box entitled "Please locate the imagetype file".

Sub Menu:

See Also:

Example: User wishes to find raster image file of the basemap.

Function: File list box

Purpose: Lists image files through file dialogue box.

Menu Item: Load Raster Images

Syntax:

Window: GUI|load raster image

Remarks: Standard File Dialogue Box.

Sub Menu:

See Also:

Example: User selects from list of available raster image files forthe basemap.

Function: Directory list box

Purpose: Lists Directories available through dialogue box.

Menu Item: Load Raster Images

Syntax:

Window: GUI|load raster image

Remarks: Standard Directory List Box.

Sub Menu:

See Also:

Example: User selects from list of available directories.

Function: File Types

Purpose: Allows user to select supported image file suffixes thatdefine image file types.

Menu Item: Load Raster Images

Syntax:

Window: GUI|load raster image

Remarks: Standard List Box.

Sub Menu:

See Also:

Example: User selects from list of available image file types.

Function: Drives

Purpose: Allows user to select supported drives.

Menu Item: Load Raster Images

Syntax:

Window: GUI|load raster image

Remarks: Standard List Box.

Sub Menu:

See Also:

Example: User selects from list of available drives.

Function: LOS

Purpose: Launches LOS generation process.

Menu Item: LOS button

Syntax:

Window: GUI|Data Entry

Remarks: Starts process that generates Line of Sight.

Sub Menu:

See Also:

Example: User wishes to determine visibility in the vicinity of theobserver.

Function: Profile

Purpose: Launches profile generation process.

Menu Item: PROFILE button

Syntax:

Window: GUI|Data Entry

Remarks: Starts process that generates Line of Sight

Profile.

Sub Menu:

See Also:

Example: User wishes to determine visibility along the line of sightbetween the observer and target.

Function: UPDATE

Purpose: Updates LOS variables entered from Data Entry dialogue andupdates observer-to-target locations.

Menu Item: UPDATE

Syntax:

Window: GUI|Data Entry

Remarks: Updates field of view tool used to select.

Sub Menu:

See Also:

Example: User selects viewpoint for chosen scene by keyboard entryand wishes to view updated observer-to-target tool diagram.

Function: Azimuth Start

Purpose: Updates the starting position of the visibility sector forline of sight generation.

Menu Item: Azimuth start

Syntax:

Window: GUI|Data Entry

Remarks: Updates Azimuth Start used to generate LOS.

Sub Menu:

See Also:

Example: User modifies text string to update Azimuth Start.

Function: Azimuth End

Purpose: Updates the ending position of the visibility sector forline of sight generation.

Menu Item: Azimuth End

Syntax:

Window: GUI|Data Entry

Remarks: Updates Azimuth End used to generate LOS.

Sub Menu:

See Also:

Example: User modifies text string to update Azimuth Start.

Function: Observer Latitude

Purpose: Updates Observer Latitude for Line of Sight entered fromData Entry dialogue.

Menu Item: Observer Latitude

Syntax:

Window: GUI|Data Entry

Remarks: Updates Latitude of observer used to generate LOS.

Sub Menu:

See Also:

Example: User modifies Observer Latitude in order to change Line ofSight bore sight.

Function: Observer Longitude

Purpose: Updates Observer Longitude for Line of Sight.

Menu Item: Observer Latitude

Syntax:

Window: GUI|Data Entry

Remarks: Updates Longitude of observer used to generate LOS.

Sub Menu:

See Also:

Example: User modifies Observer Longitude in order change Line ofSight bore sight.

Function: Observer Height(Altitude)

Purpose: Updates Observer Height(Altitude) for AGL(AMSL) elevationoption.

Menu Item: Observer Altitude

Syntax:

Window: GUI|Data Entry

Remarks: Updates AGL(AMSL) elevation of observer used to generateLOS.

Sub Menu:

See Also:

Example: User modifies Observer Height(Altitude) in order to changeviewpoint for chosen scene.

Function: Target Latitude

Purpose: Updates Target Latitude for LOS entered from Data Entry dialogue.

Menu Item: Target Latitude

Syntax:

Window: GUI|Data Entry

Remarks: Updates Latitude of Target used to generate LOS.

Sub Menu:

See Also:

Example: User modifies Target Latitude in order to change Line ofSight bore sight.

Function: Target Longitude

Purpose: Updates Target Longitude for Line of Sight entered from DataEntry dialogue.

Menu Item: Target Latitude

Syntax:

Window: GUI|Data Entry

Remarks: Updates Longitude of Target used to generate scene.

Sub Menu:

See Also:

Example: User modifies Target Longitude in order to change line ofSight boresight.

Function: Range To Target

Purpose: Updates Radius of the visibility sector for Line of Sightentered from Data Entry dialogue.

Menu Item: Range To Target

Syntax:

Window: GUI|Data Entry

Remarks: Updates ground distance from observer to Target used to generateLOS visibility sector.

Sub Menu:

See Also:

Example: User modifies Range to Target in order to change Line ofSight bore sight.

Function: Visibility

Purpose: Line of Sight product classifies all elevations as eithervisible or invisible.

Menu Item:

Syntax:

Window: GUI|Data Entry

Remarks: Generates simple two-fold classification of terrain.

Sub Menu:

See Also:

Example: User wishes for simple terrain classification that may bein error.

Function: Visibility-Probability

Purpose: Line of Sight product classifies terrain as definitely visible,probably visible, probably hidden, definitely hidden.

Menu Item:

Syntax:

Window: GUI|Data Entry

Remarks: Generates four-fold classification of visibility for terrain.

Sub Menu:

See Also:

Example: User wishes to display terrain visibility classificationthat may be in error.

Function: Precise Loc

Purpose: Allows user to interactively select the precise observerlocation based on viewing the DTED nodes in a 5x5 matrix.

Menu Item:

Syntax:

Window: GUI|Data Entry

Remarks: Selects a precise observer location.

Sub Menu:

See Also:

Example: User wishes to select the location of the highest DTED nodein the nearby terrain.

Function: DTED Acc

Purpose: Allows user to specify the accuracy parameter of DTED data.

Menu Item:

Syntax:

Window: GUI|Data Entry

Remarks: Selects a DTED accuracy parameter.

Sub Menu:

See Also:

Example: User wishes to specify the accuracy parameter of DTED data.

Function: AMSL

Purpose: Selects Above Mean Sea Level(AMSL) as the elevation referencedatum.

Menu Item: Preferences

Syntax:

Window: GUI|preferences

Remarks: Updates user preference reference datum.

Sub Menu:

See Also:

Example: User selects convenient reference datum.

Function: AGL

Purpose: Selects Above Ground Level(AGL) as the elevation referencedatum.

Menu Item: Preferences

Syntax:

Window: GUI|preferences

Remarks: Updates user preference reference datum.

Sub Menu:

See Also:

Example: User selects convenient reference datum.

Function: Decimal Degrees

Purpose: Selects Decimal Degrees as the geographic coordinate system.

Menu Item: GUI|preferences

Syntax:

Window: Main GUI

Remarks: Updates user preference for coordinates.

Sub Menu:

See Also:

Example: User selects convenient coordinate system.

Function: Deg Min Sec

Purpose: Selects Degrees-Minutes-Seconds as the geographic coordinatesystem.

Menu Item: GUI|Preferences

Syntax:

Window: Main GUI

Remarks: Updates user preference for coordinates.

Sub Menu:

See Also:

Example: User selects convenient coordinate system.

Function: Meters

Purpose: Selects Meters as the distance measurement system.

Menu Item: Preferences|distance Units

Syntax:

Window: GUI|Preferences

Remarks: Updates user preference for ground distance measurement system.

Sub Menu:

See Also:

Example: User selects convenient ground measurement system.

Function: Feet

Purpose: Selects Feet as the distance measurement system.

Menu Item: Preferences|distance Units

Syntax:

Window: GUI|Preferences

Remarks: Updates user preference for ground distance measurement system.

Sub Menu:

See Also:

Example: User selects convenient ground measurement system.

Function: OK

Purpose: Selects current preferences.

Menu Item: Preferences

Syntax:

Window: GUI|Preferences

Remarks: Updates user preferences.

Sub Menu:

See Also:

Example: User selects new preferences.

Function: Cancel

Purpose: Selects cancels current preferences.

Menu Item: Preferences

Syntax:

Window: GUI|Preferences

Remarks: Cancels modifications to user preferences.

Sub Menu:

See Also:

Example: User cancels new preferences.

Function: Save

Purpose: Selects Save current preferences.

Menu Item: Preferences

Syntax:

Window: GUI|Preferences

Remarks: Saves modifications to user preferences.

Sub Menu:

See Also:

Example: User saves new preferences.

Function: Reset

Purpose: Selects resets previous preferences.

Menu Item: Preferences

Syntax:

Window: GUI|Preferences

Remarks: Resets modifications to user preferences.

Sub Menu:

See Also:

Example: User resets previous preferences.

Function: Help

Purpose: Selects Help for perspective scene application.

Menu Item: Preferences

Syntax:

Window: GUI|Preferences

Remarks: User can obtain general help on application.

Sub Menu:

See Also:

Example: User requires general Help.

1.5 Tips andTechniques

Line of sight visibility shading on base maps can be very effective as atargeting aid. However, some observer locations can produce surprising ordisappointing results. Looking down from a mountain top to a valley floorbelow is likely to be a more effective view point than looking toward a mountainfrom a plain. Low viewpoints with hills close by, can usually create veryconfusing hidden areas over large regions of the terrain.

The few tips that follow are only a few of the many that you will learn asyou gain experience with the product.

1.6Sudden Surprises and how to solve them

Sudden surprises are those unexpected events that occur in a procedure thatyou have performed previously with no problem. You can not be prepared forevery possible problem, nor can you expect to surmount every difficulty thatyou might encounter when using this product. However, there are a few commondifficulties that you may suddenly encounter, that you can diagnose and solvefor yourself.

Here are some of the most common problems that you might encounter, and whatto do about them...

The internal color palette used by the window has been corrupted, by anotherapplication. Quit Windows and restart.

Not really a sudden surprise, this is more a latent discovery. The graphicscard or the graphics driver loaded on your computer is not capable of supporting256 colors. Either load a 256 color driver and/or upgrade the graphics cardto support 256 colors.

FATAL: This is an internal incompatibility between a non-standard graphicscard and one of the active software modules. Contact your support representative.

FATAL: The application has run out of available heap memory because of anerror in the MUSE library. Contact your support representative.

This is not fatal. This effect depends on the speed of the machine. To displayvalues of DTED in an area, simply move the cursor slower if you suspect thiseffect.

This usually is caused by the user having entered a latitude or longitudefollowed directly (without a space) by the northing / easting letter. Re-enterwith a space between the number and the letter coordinate. For example, 101.0E rather than 101.0E.

Help files are found automatically only if the correct working directoryis specified in the Windows 'Properties' dialog box.

1.7NOTES

1.7.1 Abbreviations

ADRG ARC Digitized Raster Graphics

ANSI Military Standard for American National Standards Ins

CDROM Compact Disk Read Only Memory

CSCI Computer Software Configuration Item

DMA Defense Mapping Agency

DTD Digital Topographic Data

DTED Digital Topographic Elevation Data

STP Software Test Plan

1.7.2 File Extensions

.LOS Line of Sight Product

.PSV Scene Location file

.PSM Basemap location file

.HLP Help file

.ADR MUSE ADRG-raster file

.DTE MUSE DTED-raster file

.DBD MUSE DBDB5-raster file

.CAC MUSE CAC-raster file

.IMA MUSE generic-raster file

1.7.3 Glossary

azimuth: The direction in which the user is looking.

base map: The map in the region of interest. Usually refers to the scannedimage of the cartographic product.

boresight tool: The vector drawn between the observer and the target.

declination: The angle, measured positive down from the from the horizontal,of the bore sight line along which the user is looking.

Digital Terrain Elevation Data: Digital values of elevation usually on aregular orthogonal grid.

Field-Of-View: The angle subtended at the eye by the boundary of the viewportwindow.

Line of Sight: Straight line between the eye of the observer and thepoint-of-interest in the scene, or more generally the target.

LOS Map Product: Line of Sight visibility diagram generated as the resultof the LOS application.

MUSE: Mapping ,Charting and Geodesy Utility Software Environment.

MC&G: Mapping, Charting & Geodesy.

observer-to-target relationship: The bore sight.

point-of-interest (POI): The location within the base map that will becomethe center of the perspective scene.

profile: The vertical section of the elevation plotted against horizontaldistance.

range: The distance between the observer and the target.

preferences.

raster image: Digital image built from rows and columns of pixels. Usuallyrefers to scanned base map images, or satellite images.

scene generation: The process of construction of the perspective scene, thatis invoked after the user configures the view point parameters.

visibility sector diagram: The product of the line of sight drawn on a basemap. The diagram can be subdivided into visible and non-visible regions.

vertical exaggeration: The scale of exaggeration of the vertical elevationdisplay.

1.7.4 User Notes

8514/A video boards

ACTIX Graphics Engine Ultra

AHEAD VGA Wizard

ATI Ultra Pro

ATI VGA Wonder

COMPUADD video boards

Fahrenheit 1280

Paradise video boards

Trident 512k VGA board

VOLANTE video board


---------------------------------------------




Related NIMAMUSEDocuments


Line of Sight    LOS.DOC

Perspective Scene    PSCENE.DOC

Perspective Scene Application Reference   PSC_UG.DOC

Datum Transformation and Coordinate Conversion4, DTCC4    DTCC4.DOC

DTCC4 Users Guide   DTCC4_UG.DOC

VPFView   VPFVIEW.DOC

VPFView User's Guide   VPFV_UG.DOC

Raster Importer   RAST_IMP.DOC

Raster Importer Users Guide  RAST_UG.DOC

Vector Importer   VPF_IMP.DOC

Vector Importer Users Guide  VPFI_UG.DOC

Fusion   FUSION.DOC

Fusion Users Guide   FUS_UG.DOC

Access and Prepare NIMA Digital Data  APNDD.DOC

Build Your Own Map   BYOM.DOC

Run Specialty Applications   RSA.DOC

NIMAMUSE 2.1 Documentation   INTRO.DOC