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FLY! User Guide.book

1. 2 Select an elevation channel from the Database Channels Window FLY specifies a directional light source and computes the brightness for each pixel in the imagery using a technique known as shaded relief You can adjust the inclination and direction of sunlight using the slide controls in the Sun Position to Shaded Relief section of the panel The Sun Position for Shaded Relief section specifies the position of the sun relative to the terrain e Inclination sets the angle of sunlight FLY User s Guide 13 Managing Vector Layers e Direction determines the overhead position that the sun shines from The Default command sets a default value of 45 degrees for inclination and 0 degrees for direction The None command places the sun directly overhead at 90 degrees inclination and 0 degrees for direction After you have selected the inclination and direction you can load the channels to render your terrain To load your terrain e Click Load in the lower left corner of the panel The Rendering Window displays the terrain with a light source showing the angle of sunlight in the rendered terrain Managing Vector Layers When DEM and color files are loaded you can add new vector layers to show additional georeferenced information such as highways or hydrological information Each vector creates a new layer in memory placing it at a higher level than previous vector layers To load a vector layer 1 Select Loa
2. Figure 1 14 Movie Loop ies Movie Loop Frame Generation pai panel showing File Format Sequential JPEG frames m the File Format Sequential BMP frames list Sequential JPEG frames Sequential PPM frames Frames Per Second Frame Size Sequential TARGA frames Sequential TIFF frames Directory for GenerataParallax movie format Saving your Flight Path as a 3 D Image FLY can save your flight path movie in a 3 D format Select Parallax Movie Format from the File Format drop down menu on the Movie Loop panel FLY renders movie files in 3 D format To view your movie in 3 D yov ll need a pair of 3 D glasses 24 PCI Geomatics Flying Through the Terrain After you load your terrain you are ready to fly through your flight path The User Free Flight function is accessed by clicking the User Free Flight command on the main panel Figure 2 1 User Free Flight command 2A In free flight mode the viewer moves forward until you make an adjustment with the controls All navigational and rendering controls are active The flight can be started or stopped at any point in the rendered terrain by clicking the User Free Flight command again Use your mouse to control flight characteristics in both the Nadir Window and the Rendering Window FLY User s Guide 25 Controlling Flight in the Rendering Window Controlling Flight in the Rendering Window Figure 2 2 FLY Rendering Window with loaded Terrai
3. In the Options menu click Vectors The Vector panel opens In the Vector panel scroll to the right to the Use Symbol box Click the Use Symbol box A file selector opens 64 PCI Geomatics Appendix B Additional Information 6 Locate and load the BMP file The BMPs are loaded to the FLY viewer Note PCI recommends a 20 x 20 size BMP as it is displayed as such Larger sizes will appear larger in the image There is no perspective Heads Up Display HUD Figure B 1 The HUD Panel You can add a heads up display to FLY To add a heads up display 1 Under Options click the HUD display drop down menu list 2 The Heads Up Display Configuration Panel opens S Heads Up Display Configuration BBE I Activate Heads Up Display Values to Show m Text Attributes PM Location Color Red IV Elevation Font Pc Romanfwestem z IV Speed IV Heading He e Activate the Heads Up Display Activates the Heads up Dis play e Values to Show Shows the Values Text Attributes Lets you set the Text attributes e Close Closes the HUD Panel Help Opens the Helper FLY User s Guide 65 Appendix B Additional Information Vector Display You can show a vector layer in a FLY image and set a customized threshold so that you can only see it when you are at a specified altitude To set this up there are two new options in the Vector control panel e Display above Sets
4. Running a FLY Demo Figure 3 7 Database Channels Window with an elevation channel highlighted The Database Channels window opens with a list of elevation and color channels is File D demo flydata pix micrometres Red Color micrometres Green Color 8u 0 45 52 micrometres Blue Green Color Bu 90 micrometres Near I R alternative Re 6 G vation Data 1 metre ianterval came Database Window Selection fo 0 1024 1024 Select amp Close Select Close New File Help 7 Click in the list on the 5 16s USGS Elevation Data 1 metre interval database 8 Click the Select command The elevation data is now ready to load Next you will load color channels from the same Database Channels window You may need to move the Database Channels window out of the way to access the Load Elevation and Color Panel To load color channels from the Database Channels window 1 Click the Select Color File command on the Load Elevation and Color panel The Database Channels Window is now set for selecting color data FLY User s Guide 45 Loading the Terrain Figure 3 8 Database Channels Window with one color channel highlighted N BS File D demo flydata_pix 1 0 63 0 69 micrometres Red Color 2 8 0 52 0 60 micrometres Green Color 3 8u 0 45 0 52 micrometres Blus Green Color 4 8u 0 76 0 90 micrometres
5. blue each channel Where 0 0 0 Black a Named file is any supported GDB file except raw files b Numbers 1 g b grey and e give channels holding color and elevation A single number is assumed as an elevation channel and is loaded as color shaded relief terrain Two numbers are read as Ist grey intensity and 2nd elevation All four chan nels are specified as red green blue and elevation channels c Numbers correspond to the following 0 None No smoothing 1 Slight 5x5 Gaussian Filter with standard deviation 2 2 Medium 5x5 Gaussian Filter with standard deviation 3 3 Extreme 5x5 Gaussian Filter with standard deviation 4 FLY User s Guide 59 Appendix A Using FLY from the Command Line 60 PCI Geomatics Additional Information Memory Usage and Speed Hints FLY is a memory intensive application The following chart shows the RAM memory required for various input data sizes 1024 x 1024 7 Mbytes 1536 x 1536 14 Mbytes 2048 x 2048 24 Mbytes 4096 x 4096 88 Mbytes Add 5 to 8 MB on top of this for the operating system and user interface To achieve maximum performance it is best not to run any other applications while FLY is active Motif Customization Customizing the appearance of FLY on X Motif systems FLY User s Guide 61 Appendix B Additional Information FLY resources such as fonts and colors are customized on operating systems using X Windows Mot
6. 0 90 micrometres Near I R alternative Re 5 168s USGS Elevation Data 1 metre interval Bed fi Green2 Blue ffs fo 0 1024 1024 Select amp Close Select Close New File Help When you select a color channel the values appear in the boxes below the database channels list If you have not selected an elevation or color file a file selection panel opens to choose an image database file For 24 bit RGB and 8 bit black and white data you can specify a color enhancement for each color channel in the terrain with the Load Elevation and Color panel 10 PCI Geomatics Chapter 1 Getting Familiar with FLY In the Color Enhancement list select e Linear for linear enhancement e Root for square root enhancement e Equalize for histogram equalization Adjusting Database Information The Load Elevation and Color panel has four image adjustments e Pixel Size to specify the size for each pixel relative to the ground Database pixels are square and are measured in square meters The default value is 1 00 meter For PCIDSK files pixel size values will be read and filled in automatically e Pixel Height specifies the height of one elevation unit For example if the digital elevation model value is 1 000 and the pixel height is 1 00 meter then the real elevation is calculated at 1000 m Similarly if the pixel height is 10 m the real elevation is 10 000 m The default value is 1 00 meter e Terrain X
7. When your flight path numbering clutters the nadir view set Show Node Numbering to off e Path Color Edit command opens the Path Color Editing panel To change the flight path color click the Edit command to the right of the Path Color title The Path Color Editing window opens is Path Color Editing Red A fo Green gt I Jo Blue 255 Close Help Adjust Red Green and Blue color values using the slider or by typing a value directly into the corresponding text box e Highlight Color changes the color of the nodes in the Nadir window To adjust the node color click the Edit command to the right of the Highlight Color title The Highlight Color Editing window opens Adjust Red Green and Blue color values using the slider or by typing a value directly into the corresponding text box e Path Resolution changes the total number of line segments used to draw the path 30 PCI Geomatics Chapter 2 Flying Through the Terrain e Path Resolution changes the resolution of your flight path in the Nadir window To change the path resolution click an arrow on the box to the right of the Path Resolution title or type a value directly into the text box A higher number makes the path look smoother because more lines are used to draw curves in the flight path e The Nadir window can show either rendered terrain images or unprocessed elevation images To display either the rendered image or
8. control the flight interactively while moving through your terrain C Opens the Nadir panel to provide an overhead view of the terrain Use the Nadir panel to create a flight plan D Opens the Flight Editing Panel to create and play flight plan movies E Message area to display brief messages and to show progress of some actions Descriptive text appears when your mouse passes over a function command F Menu bar with four menus File Edit Options and Help The menu commands are explained below Loading Elevation and Color Data FLY generates terrains using elevation data and color information that you choose from an image database file Use 6 PCI Geomatics Chapter 1 Getting Familiar with FLY Figure 1 2 The FLY File menu the File menu to access the functions that load DEM and color datasets Ba FLY Bm x Mem ci Options Help File Utility Load DEM RGB Load DEM BW Load DEM Pseudo Color Load DEM Shade RGB Load DEM Shade BW Load Vectors Rendered inege tio rile Save Flight Path lige Slohit Pett Exit Ctrl X Full color terrains require three color channels one each for red green and blue To create full color terrains select the Load DEM RGB command from the File menu Monochrome terrains require one color channel to specify brightness To create black and white terrains select the Load DEM BW option from the File menu 8 bit pseudo color terrain
9. enhance 3 D effects FLY User s Guide 33 Editing Rendered Images Figure 2 12 3 D dialogue box Figure 2 13 Options Menu EJ3D BBE Focal Length 64 Baseline a Close Help Focal Length specifies the focusing point in pixels Values vary from 32 to 512 pixels The default setting is 64 pixels Base Line changes the interval between left and right images from 1 to 30 pixels The default setting is 4 pixels Setting Scales and Flight Characteristics Use the Options menu to change graphical preferences and qualities and to adjust the rendering mode Options Help Elevation Options Speed Options Frames Per Second Vectors Coordinates Units Rendering Quality Fogging Mode Render Mode vvv v Setting Elevation Options The Elevation Options panel controls characteristics for rendered images To open the Elevation Options panel select Elevation Options from the Options menu 34 PCI Geomatics Chapter 2 Flying Through the Terrain Figure 2 14 Elevation Options dialogue box ies Elevation Options Elevation Minimum fo m Elevation Maximum froooo m Scaling Square gt Made No Collision gt Close Help The Elevation Minimum and Elevation Maximum fields set the range of values for the elevation slide control on the main panel The number entered in the Elevation Maximum field must always be higher than the number entered in the Elevation Mini
10. memory used by a vector layer Each list vector entry shows the name and description associated with the vector layer and the number of objects and vertices in the layer The Color column shows the current color of the vector layer To change the color used to draw the vector layer click the color box in the table A color selection panel opens A checkmark in the Visible column indicates whether the vector layer is being drawn Clicking on the Visible box for a layer to turn drawing on or off To disable vector drawing select the Disable Drawing check box below the vector table To enable vector drawing clear the Disable Drawing check box 16 PCI Geomatics Chapter 1 Getting Familiar with FLY To delete a vector layer 1 Locate the row you wish to delete in the table 2 Select it by clicking anywhere on the row 3 Click Delete The vector layer is removed from memory only The layer file remains in the original file folder A vector with higher priority is drawn on top of vectors of lower priority By default priority is determined by the order the vector layers are loaded The priority can be changed using the up and down Priority commands in the lower left of the Vectors Panel To move the currently selected vector layer one position higher in the list click the Up command To move the currently selected layer down one position in the list click the Down command Defining Raw Database Files Figur
11. path files require large amounts of disk space The rendered Flight Path file shown in this illustration is approximately 400 MB Generating a Movie Loop Figure 3 19 FLY Flight Panel showing coordinates for 5 nodes After you have added all of the nodes for your flight plan you can generate a movie loop to fly along your flight path To generate a movie loop 1 In the lower middle of the Flight Panel click Generate Movie Loop Ea FLY Flight Panel Bir Total Path Length 16736 m 81 389 m 325 159 389 m 277 389 m 1 3 41 54 89 m 89 m Clear Update Insert Add Delete I Smooth Flight Path Playback Continuous Playback On lt lt lt fil gt gt gt Close Generate Movie Loop Help The Movie Loop Frame Generation dialog box opens 54 PCI Geomatics Chapter 3 Running a FLY Demo Figure 3 20 Movie Loop Frame Generation Dialogue Box Figure 3 21 Main Panel showing progress indicator i Movie Loop Frame Generation Bika File Format Sequential BMP frames Frames Per Second fis Frame Size 320 x 240 Directory for Generated Frames DAMovie1 aa eae 3 chars FLY Generate Frames Cancel Help You can choose from several file formats in the File Format menu For this demonstration leave the file format at Sequential BMP frames 2 Inthe Frames Per Second setting use the default value of 15 3 En
12. stationary hover perspectives or program a custom flight path with several flight parameters that you select FLY User s Guide Introducing FLY You can overlay vector data to enhance the simulation Identify key areas isolate specific structures add lines of sight show electrical power corridors railways place names and much more You can even simulate adverse weather conditions with the FLY fogging feature In addition to interactive flight you can predetermine a flight path ahead of time Select the precise points that make up your custom flight plan using the nadir image as your guide Save your image files in a variety of formats or export them for conversion to video file formats How to Use this Manual This FLY User s guide is divided into four chapters Introduction introduces the features of the software and has a few suggestions for using FLY in your work Built in flexibility allows you to use your own creativity for discovering new uses Use this chapter to review the features of FLY Chapter 1 contains preliminary instructions and references to help you become familiar with the main software components Refer to this chapter for details about what you can do and how to set up files with the FLY Graphical User Interface Chapter 2 provides details about managing vector layers and using the various components of the software to customize your FLY session to suit your needs Use this chapter to l
13. the elevation image click the Show Elevation Show Imagery command at the top of the Nadir window Editing Rendered Images Figure 2 8 Edit command list The Edit menu has four commands that open dialog boxes for editing your rendering characteristics Figure 2 8 shows the Edit command list Options Help Position Speed Direction Rendering Size Perspective o Changing Position Speed and Direction The Position Speed Direction option in the Edit menu opens the panel shown in Figure 2 9 on page 32 You can modify the viewing position the speed and the direction of movement FLY User s Guide 31 Editing Rendered Images Figure 2 9 Position Speed Direction panel Figure 2 10 Render Window panel Position Speed Direction BES x Position 512 F Y Position fat 2 t Elevation 389 m Move Direction fieo degrees View Direction fiso degrees Speed 500 km h Close Help You can enter explicit values for the viewer position direction and speed These characteristics can also be set with the Control panel when exact positioning is required Resizing the Rendering Window The Rendering Size option in the Edit menu specifies the size of the rendering window in pixels and lines fal Render Window SES Frame x Size 320 pixels Frame Y Size 240 lines Close Help To adjust the width of the frame in pixels click the Frame X Size field Type the number of pixels
14. the lower limit of the threshold e Display below Sets the upper limit of the threshold 66 PCI Geomatics Index Numerics 3 D changing parameters 33 A adjusting database information 11 image perspective 33 B Background value high background value 63 03 changing units of measure 37 checking system performance 39 choosing rendering mode 38 color channels enhancing 18 color data loading 10 color shaded terrains selecting 7 color terrains loading 7 controlling direction 27 elevation 27 flight 26 position 27 speed 27 controlling flight in the nadir window 28 controls nadir window 29 coordinate system selecting 36 creating a flight path 19 flight path 19 38 D data channels selecting 11 database information adjusting 11 direction controlling 27 E editing path color 30 rendered images 31 elevation controlling 27 smoothing 9 terrain from only 12 elevation smoothing 9 enhancing color color channels 18 F feature main panel 5 File drop down menu 6 flight panel using the 21 flight path creating a 19 FLY control panel using 27 G generating movie files 22 H header bytes specifying for raw file definitions 18 67 Index l image adjusting perspective 33 L light angle shaded terrain 13 load elevation and color in demo folder 43 loading color data 10 color shaded terrains 13 elevation data 9 grey
15. values Xy X y are in pixels Upper left corner default Set initial height Z value is in Z Z elevation units of DEM data 0 default Set initial viewing direction in degrees 180 default dir direction Zoom foreground pixels Valid values from 0 01 1 to 1 00 100 1 00 default zoom factor Tilt position of horizon in degrees from 0 to 60 25 default tilt angle View cone angle for rendered frames from 0 to 120 degrees 60 degrees default frustum angle Use 3 D anaglyph mode 3d Set linear enhancement linear Set root enhancement root Set equalization enhancement equal 58 PCI Geomatics Appendix A Using FLY from the Command Line To do this Enter this Command Select blocky quality blocky Select fitted quality fitted Select smooth quality smooth Select shade relief direction shadedir angle Set shade relief inclination angle shadeinc angle Display command line options help Display version number version Open the flight panel flightpanel Open Nadir window when the nadir program is started Open control panel when the control program is started Load a flightplan flight filename fogging Apply fogging effects percentage loadsmooth Smooth image Factors 0 3 factor Specify an alternate sky color skycolor red Values between 0 and 255 for green
16. 1 aspect ratio according to the data files FLY is using A black and white marker indicates the current position and direction of movement on the terrain The white part of the marker is a cross shape indicating the current movement direction To place the viewer at a location on the terrain click on the terrain in the desired position To change the direction and view together right click near the position marker in the desired view The view and direction change to the position of the click With a three button mouse the middle click changes only the viewing direction Using the Nadir Window Controls There are three sets of controls at the top of the Nadir window The Options command the zoom image controls and the Show Elevation Show Image command The options command opens a panel to set color and path options for the Nadir window To open the Nadir Options panel click the Options command on the Nadir window Figure 2 6 Nadir Color Options panel Ea Nadir Options Show Path On Show Node Numbering On Path Color esl Edit Highlight Color R Edit Path Resolution ja Close Help FLY User s Guide 29 Controlling Flight in the Rendering Window Figure 2 7 Path Color Edit window Selecting Color Options Below is a list of options commands in the Nadir Options panel e Show Path shows the flight path in the nadir view e Show Node Numbering displays each node in the path with its node number
17. FLY User s Guide Version 9 0 May 2003 50 West Wilmot Street w Pi I Richmond Hill Ontario Canada L4B 1M5 Phone 905 764 0614 Geomatics Fax 905 764 9604 Committed to GEO intelligence Solutions E mail support pcigeomatics com 2003 PCI Geomatics Enterprises Inc All rights reserved COPYRIGHT NOTICE Software copyrighted c by PCI Geomatics 50 West Wilmot St Richmond Hill Ontario CANADA L4B 1M5 Telephone number 905 764 0614 RESTRICTED RIGHTS Canadian Government Use duplication or disclosure is subject to restrictions as set forth in DSS 9400 18 General Conditions Short Form Licensed Software U S Government Use duplication or disclosure is subject to restrictions as set forth in FAR clause 52 227 19 Commercial Computer Software Restricted Rights and in subparagraph c 1 ii of the Rights in Technical Data and Computer Software Clause at DFARS 52 227 7013 ACE ACE amp Design logo ACE Advanced Cartographic Environment AGROMA EASI PACE EOScape FLY GCPWorks GeoAnalyst GeoGateway ImageWorks OrthoEngine PCI OrthoEngine PCI PCI amp Logo Committed to GeoIntelligence Solutions PCI Author PCI Visual Modeler RADARSOFT RasterWorks and SPANS are registered trademarks of PCI Geomatics Enterprises Inc PCI Geomatics and Geomatica are registered trademarks of PCI Geomatics Enterprises Inc InstallShield is a registered trademark of InstallShield Software C
18. Near I R alternative Re 5 168 USGS Elevation Data 1 metre interval fo 0 1024 1024 Select amp Close New File Help Color channel data can be selected one file at a time from the list by highlighting the file and pressing the select command after each selection Default values can be selected by clicking on the Default command below the file list 2 For this demonstration click Default Note FLY enters default color values in the color value boxes below the Database Channels list 3 Click the Select and Close command in the lower right of the Database Channels Window The Window closes and all of the elevation and color data you have selected is ready to load 4 Click the Load command in the lower left of the Load Elevation and Color Panel The panel closes and a progress monitor opens displaying the file loading activity 46 PCI Geomatics Chapter 3 Running a FLY Demo Figure 3 9 Main Panel after files are loaded Figure 3 10 Rendering Window showing a rendered image When the files have finished loading the progress monitor closes The menu and button commands are now available The Render Window shows a landscape with a horizon that FLY has generated from the data you have loaded ES FLY File Edit Options ES FLY Rendering Window C PCI_V M E3 Controlling Your Flight The function commands on the main panel control different featur
19. Size determines the size of the terrain The elevation data region can be a different size and ratio from the created terrain The data is scaled up or down accordingly This field is automatically updated to the size of the elevation data It can be overridden manually e Terrain Y Size determines the size of the terrain The elevation data region can be a different size and ratio from the created terrain The data is scaled up or down accordingly This field is automatically updated to the size of the elevation data It can be overridden manually Selecting Data Channels In the Database Channel selection window select one or more color channels to define your terrain The database channels FLY User s Guide 11 Using the Main Panel appear in the list with a description of the source data type and a description for the file To select an image channel 1 Click on the desired channel 2 Click the Select command 3 To close the Database channels window and save your selection click the Select and Close command Below the list is a caption showing the type of channel you are selecting Next to the caption is a blank text field for database channel numbers When a text field contains a number it indicates that the corresponding channel number is being used for information There are Clear and Default commands beneath the captions and text fields e Click the Clear command to erase the field e Click the Default
20. Window e Click the Nadir View command on the main panel The Nadir window opens showing the terrain from above BS FLY Nadir Window D demo flydata pix 50 PCI Geomatics Chapter 3 Running a FLY Demo Click anywhere inside the Nadir Window A position indicator opens and your current position changes to where you clicked inside the Nadir window terrain To change the position of flight click anywhere inside the Nadir Window when User Free Flight function is either on or off To change the direction of flight in the Nadir window right click on the terrain in the direction you wish to fly The flight direction changes in the direction of your mouse pointer Creating a Flight Path Figure 3 16 Flight Path Editing command You can record a flight plan to move in any direction over the terrain in the Nadir Window using the Flight Path Editing function The flight plan is programmable for elevation speed direction and view Next you will create a flight plan from the terrain in the Nadir and the Rendering windows Use the default elevation speed color and rendering settings to create a simple flight plan To create your own flight plan 1 On the main panel click the Flight Path Editing command The Flight Panel opens on your desktop FLY User s Guide 51 Creating a Flight Path Figure 3 17 FLY Flight a FLY Flight Panel Bm Es Panel before creating nodes Total Path Lengt
21. at the cursor To adjust the height of the frame in lines click the Frame Y Size field Type the number of lines in the Frame Y Size field Common sizes for rendering windows are 320 x 240 or 640 x 480 The minimum is 64 x 64 The maximum is 1024 x 768 32 PCI Geomatics Chapter 2 Flying Through the Terrain Adjusting the Rendered Image Perspective Use the Perspective dialog box to change the perspective characteristics of the rendered image Figure 2 11 Perspective S Perspective dialogue box Height Magnification fi O Horizontal Tilt 25 degrees Pixel Zoom fi 00 Field of View eo degrees Close Help Height Magnification exaggerates the elevation The default setting is 1 0 Values can vary from 0 to 3 0 A value of 0 removes elevation completely Horizon Tilt changes the horizon position by degrees Values can vary from 0 to 60 The default setting is 25 degrees Pixel Zoom controls the size of foreground pixels at low elevations Settings vary from 0 01 1 to 1 00 100 The default is 1 00 The maximum size of foreground pixels is automatically determined by FLY Field of View changes the view cone in the rendered image The default setting is 60 degrees A larger field of view value exaggerates the perspective in the render window Changing 3 D Characteristics You can modify the characteristics that control 3 D viewing in the 3 D Edit command Alter the values in this dialogue box to
22. by other software packages Produce a true vector overlay All GeoGateway vector formats are supported Create a flight path composed of several user specified nodes selected from the nadir image Store the position direction and speed parameters in addition to pitch view cone and zoom levels for each node in a flight path Play back your flight with VCR type controls or set FLY for continuous playback with a single mouse click PCI Geomatics Getting Familiar with FLY This chapter introduces you to the FLY Graphical User Interface and gives details about the many features and functions of FLY Using the Main Panel The main panel is the central control for all of the FLY features and settings It has a menu bar with four menus four function commands and a message area Figure 1 1 on page 6 shows the Control panel and the names of the control commands The command areas are listed below with a brief description of what they do FLY User s Guide 5 Using the Main Panel Figure 1 1 The FLY Control Panel AFLY 15 x File Edit Options 14 4 gt gt I E A B C A Control Panel command B User Free Flight command C Nadir View command D Flight Path Editing command E Message area F Menu bar A Opens the Control Panel to provide a graphical interface Use the Control panel to change your position direction and speed characteristics B Puts FLY into controlled free flight You
23. changes relative to where you have clicked in the Position window Direction changes the direction of movement and the direction the viewer is facing The direction of movement and the view can be different The long black line changes direction and the short red line changes the view To change the direction and view together click inside the circle indicator To change the view only right click inside the circle indicator Elevation slide control changes the elevation of the view in the Rendering window To adjust the range of elevation values use the Options menu on the main panel Speed slide control changes the file reading rate of the Rendering window To adjusted the range for this control use the Options menu on the main panel FLY User s Guide 27 Controlling Flight in the Rendering Window Figure 2 4 Nadir View command Figure 2 5 FLY Nadir window Controlling Flight in the Nadir Window The Nadir window shows the overhead or nadir view of the terrain To open the Nadir window click on the Nadir View command on the main pane A B C BIFLY Nadir Window D demo flydata pix Options JA Ql off Show Elevation rer i A A Color Options command B Zoom Image Controls C Show Elevation Show Imagery toggle command 28 PCI Geomatics Chapter 2 Flying Through the Terrain The default size of the Nadir window is 512 pixels by 512 lines Window dimensions vary to maintain a 1
24. command to enter a default channel Along the bottom of the panel are a series of action commands e Select amp Close selects the channels currently highlighted in the main loading panel and opens the channel selection panel To select a different file from the current one e Click the New File command Loading Terrain from Elevation Only Both the Load DEM Shade RGB and the Load DEM Shade BW commands in the File menu create terrains using elevation data only Each selection opens a corresponding panel Either the Load Elevation and Shade in full Color or the Shade as Grey Levels panel appear depending on the command you selected 12 PCI Geomatics Chapter 1 Getting Familiar with FLY All load panels have similar functions Figure 1 6 shows the Load Elevation and Shade in Full Color Panel Figure 1 6 Load Elevation RIRERISReTRtT ES rtcnialkesnn and Shade in Elevation Information Full Color panel Select Elevation File Elevation Smoothing None z Elevation Data Filename None Selected Channel Window Color Information Color Enhancement fLinear Sun Position for Shaded Relief Inclination 4f gt 45 00 Direction gt 0 00 Defautt None Database Information Memory Requirements 2 MB Pixel Size fi 00 m Pixel Height fi 00 m Terrain X Size 0 E Terrain Y Size 0 E To load an Elevation file 1 Click the Select Elevation command
25. d Vectors from the File menu on the main panel or click Vectors in the Options menu The Database Vector Segments window opens 14 PCI Geomatics Chapter 1 Getting Familiar with FLY Figure 1 7 The Database Vector S 25 DLGTRANS VED transportation from ELTORO DLG Segments 26 DLGHYDRO VED Hydrography from 1 100000 Map window 28 Vector 1 AII Arce Layer 30 Vector l AII Labele Layer AII Polygons Layer Load amp Close Load Close New File Help 2 Select a layer from the list of vector segments 3 Click Load The vector segment loads and the load panel remains visible To load the vector segment and close the panel e Click Load And Close To select a new database e Click New File When vector files have been loaded they are controlled using the Vectors panel To open the Vectors panel e Select Vectors from the Options menu The Vectors window opens showing a list of Vector files you loaded through the Options window FLY User s Guide 15 Managing Vector Layers Figure 1 8 The Vectors panel ES Vectors olx Color Wisible Description Objects Vertices 1 v VED transportation from ELTORO DLG 911 4364 4 l F Disable Drawing Load Delete Priority AJY Close Help Note Very large vector files may take more memory than your system has available For very large vector layers use the Compact Vectors preference to reduce the amount of
26. e 1 9 Raw file definition warning A database that has no georeference information is referred to as a raw data file You must define raw files in the Raw Imagery File Definition Information panel When you select a raw file from the Database File Selection window it is read by the FLY software and a selection box opens on the screen Raw File x 9 File D pci demo relief mah is not a recognized database 4 Do you wish to define itas a raw image file yes m To format the raw data file e Click Yes FLY User s Guide 17 Defining Raw Database Files Figure 1 10 Raw Imagery File Definition Information dialogue box The Raw Imagery File Definition Information panel opens i D demo relief mah Raw Imagery File Definition Information Header Bytes fo Channels fo Pixels fo Lines fo Data Interleaving Pixel x Data Type fe bit x o Cancel Help The Header Bytes field specifies how many bytes at the beginning of the file represent header information The default value is 0 indicating that the imagery data starts at the beginning of the file The Channels field indicates the number of channels or planes of image data that are stored in the file The default value is 1 The Pixels and Lines fields define the size of the image in the raw file as X in pixels and Y in lines These fields show the full size of the image in the file The Data Interleaving menu indicates how multiple channel
27. e Speed slide control Selecting a Coordinate System You can change the coordinate system used for reporting the viewer position on the terrain with the Coordinates commands in the Options menu 36 PCI Geomatics Chapter 2 Flying Through the Terrain Figure 2 16 Options menu showing the Coordinates commands FLY BEE File Edit evar Help Elevation Options Speed Options Frames Per Second Vectors Coordinates Display gt Units Geocoded Rendering Quality Geographic Fogging Mode Render Mode Display reports your position in pixels and lines in the loaded terrain Geocoded reports your position in geocoded units as eastings and northings Geographic reports your position in geographic units as latitude and longitude Changing Units of Measure Change the unit of measure for distance and speed with the Units item in the Options Menu Metric measures distance in meters and speed in kilometers per hour Imperial measures distance in feet and speed in miles per hour Selecting the Rendering Quality Use the Rendering Quality submenu to adjust the quality of your rendered image FLY User s Guide 37 Editing Rendered Images Figure 2 17 Options Menu showing FLY Demo OY x 5 Eie Edit EoI Help Rendering Elevation Options Quality Speed Options commands Frames Per Second Vectors Coordinates Units gt Rend
28. earn how to customize your setup and to control your flight in real time Chapter 3 reviews the main functions of FLY using the demo files provided on the CD ROM It is intended to get you up and running quickly Follow the steps carefully and you ll be a FLY expert in no time PCI Geomatics What you can do with FLY You can review Chapters 1 2 and 3 or go directly to the demo in Chapter 4 for a quick start For supplementary information about running FLY from the command line under both Windows and Unix turn to the appendixes at the back of this guide What you can do with FLY Because FLY uses PCI Geomatics GeoGateway technology it supports direct data loading from dozens of file types and GIS CAD Map formats FLY is the ideal tool for applications where terrain exploration is essential e Mission planning e Mission rehearsal e Non intrusive reconnaissance e Visual Environmental Assessment e Determination of geological structure e DEM quality assessment e Public and Management presentations FLY is available for Windows Unix and Linux operating systems With FLY you can e Create a terrain using elevation data and color information from an image database file e Specify a directional light source through shaded relief FLY User s Guide 3 Introducing FLY Save terrain renderings to an image file on disk in a variety of formats Rendered scenes can be imported or printed
29. ering Quality gt Fogging Mode gt Fitted Medium Render Mode t Smooth Slow There are three quality options to choose from e Blocky Fast displays an image with pixels as boxes with pronounced steps between each block Blocky Fast is the default and fastest rendering mode e Fitted Medium interpolates pixels so they fit together without any step effects in the displayed image e Smooth Slow interpolates the edges of the pixels so they fit together without any step effects and the colors of the pixels are blended Choosing a Rendering Mode There are two rendering modes to choose from in the Options menu Use the Normal rendering mode for a typical rendered image 38 PCI Geomatics Chapter 2 Flying Through the Terrain Figure 2 18 Options menu EJFLY Dem BE Es showing the File Edit s Help Render Mode Elevation Options Speed Options SUBMENU Frames Per Second Vectors Coordinates Units b Rendering Quality gt Fogging Mode Render Mode For a stereo image use the Anaglyph 3D option This is a special mode of rendering where the left view is rendered in red and the right view in blue The two colored views are combined to create a three dimensional image Anaglyph glasses with red and blue tinted lenses are required to view these images with a three dimensional effect AS Note Two more rendering modes are available on SGI workstations Stereo Glasses mode renders a color
30. es Green Color 52 micrometres Blue Green Color 90 micrometres Near I R alternative Re vation Data 1 metre interval eas Database Wind fo 0 1024 1024 Select amp Close Select Close New File Help To load an elevation channel e Choose the elevation data from the list and click Select If a file has not been selected a file selection panel is displayed prompting you to select a file You can reduce the effect of sharp changes in the elevation model with the Elevation Smoothing option e In the Elevation Information section of the Load Elevation and Color panel select one of the following from the Elevation Smoothing menu The list below shows how each elevation option effects the elevation model None no smoothing performed FLY User s Guide 9 Using the Main Panel Slight 5 x 5 Gaussian filter with standard deviation 2 Medium 5 x 5 Gaussian filter with standard deviation 3 Extreme 5 x 5 Gaussian filter with standard deviation 4 Loading Color Information The Select Color File command on the Load Elevation and Color panel opens the Database Channels window for selecting color channels Color channel data appears in the same list as elevation data Figure 1 5 Database S File D demo flydata pix Channels window 0 69 micrometres Red Color 1 2 8 0 52 0 60 micrometres Green Color 3 8u 0 45 0 52 micrometres Blus Green Color 4 8u 0 76
31. es of FLY When you pass your mouse pointer over a command button its function appears in the text box at the bottom of the main panel Control your flight through the terrain with the Parameters Control Panel FLY User s Guide 47 Controlling Your Flight Figure 3 11 Parameters Control command Figure 3 12 The FLY Control Panel To open the Control panel e Click the Parameters Control command on the main panel The control panel opens on your desktop o S FLY Control Panel x 512P eale 2 389 m Land 2 339 m Speed 1100 km h Face Dir 91 Move Dir 180 A BOC D E A Position Indicator B Direction Control C View Control D Elevation Slide Control E Speed Slide Control There are four controls available in this panel e Position gives a scaled representation of the terrain in the square area Each corner of the square corresponds to a corner of the terrain displayed in the Render Window To change the view in the Render Window click anywhere within the Position Window The Render window view changes relative to where you have clicked in the Position Window Direction changes the direction of movement and the direction of view The direction of movement and the view can be different The direction of movement is controlled by the long black line and the view by the shorter red line To change 48 PCI Geomatics Chapter 3 Runn
32. g FLY application 41 user free flight 25 system performance checking 39 U units of measure changing 37 user free flight starting 25 using database channels window 9 edit menu 31 flight panel 21 FLY control panel 27 main panel the 5 options menu 34 rendering window the 26 V vector layers loading 16 options 15 selecting 14 WwW working with raw file defnitions 17 69 Index 70 PCI Geomatics
33. g the Ternar ER 42 Controlling Your FQHt crise mnara a A 47 Flying Through Your Terrain eeeesseeeesrseeseerreessrrreerrrrnsasrenreeeeenn 49 Creating a Flight Path ce orin nnda aa aii 51 Generating a Movie LOOp sessessssssisssesrrrsstrirrsssttrrrssetrrnsssrenrnssent 54 Using FLY from the Command Line Using Command line Switches eeeeeeeeeeeeeeeeerreeeerrrssrrrrnsereen 57 Additional Information Memory Usage and Speed Hints ceeccceeeeeeeeeeeeeeeeteeeeeeeeaas 61 Motif CUStOMIZAtION issen eirniara a a id ea a aria 61 High Background Value eeeceeeeeeeeeeeeeeeeeecaeeeeeeeaeeeeeeetsaeeeeeeeaaas 63 Converting Image Files to Digital VidC0 ee ceeeeeteeeeeeeeteeees 63 Floating Symbol Sa arora a a aA 64 Heads Up Display HUD seeesssseeeesssrressssrressernneeesnrnnesrnnnnsaernnnesenenn 65 Vector DISPLAY vic so adrie cane EEEn sunate cadeesindezesdeeide deasihenedenecbinnee 66 Table of Contents ii PCI Geomatics Introducing FLY Welcome to the FLY User s Guide FLY is a digital imaging tool that shows imagery and terrain data using digital graphic technology FLY drapes airphoto and satellite imagery over a Digital Elevation Model and then instantly creates a 3 D perspective scene that you can navigate in real time You can alter your speed elevation and view and adjust any of the perspective parameters during flight To control your flight just point and click Create
34. h 0 m Clear Update Insert Add Delete J Smooth Flight Path There are several control commands on the Flight Panel but for now only the Add Close and Help commands are available 2 Click anywhere in the Nadir Window The position indicator is shown where you clicked in the image 3 Below the text window on the Flight Panel click Add FLY automatically generates coordinates to produce the first node in your flight plan and lists them in the Flight Panel The remaining editing commands are now available You can clear update insert and delete coordinate information as you wish To add more nodes to your flight path e Simply click in the Nadir window and click the Add command after each selection Repeat steps 2 and 3 above until you have several nodes linked together to form a path 52 PCI Geomatics Chapter 3 Running a FLY Demo Figure 3 18 shows an illustration of a flight path with 5 nodes that follows a feature of the terrain You can place your nodes in a line anywere on your image DS Note Figure 3 18 has been enhanced for graphical clarity Your nodes will look smaller and your flightpath will have thinner lines Figure 3 18 Nadir Window BIFLY Nadir Window D demo flydata pix showing illustration of flight path FLY User s Guide 53 Generating a Movie Loop Warning Be sure you have enough disk space to record a flight path file Flight
35. ideo format to retrieve them and play them back FLY cannot save reload and replay image files as digital video After you create the individual frames using the Generate Movie Loop command a separate third party software product is required to convert the image files into digital video format Video files such as QuickTime AVI and MPEG can be created from the FLY rendered frames with third party encoding software available in some multimedia packages and as freeware on the Internet For example there are demo versions of MPEG encoders available on the World Wide Web Xing MPEG Encoder http www xingtech com VideoStudio by Ulead http www ulead com FLY User s Guide 63 Appendix B Additional Information AS Note PCI Geomatics does not sell support or endorse any digital video encoding software Floating Symbols You can add a floating symbol layer to your FLY image First you must prepare a bitmapfile with point data to locate the symbols relative to the background image To prepare data for floating symbols EN ANS R AA In Image Works open flydata pix Create a new point vector layer Populate it with some points Save the vector layer Exit ImageWorks Start Microsoft Paint Create a BMP that is 20 x 20 pixels Save and exit Now you are ready for FLY 1 2 3 In FLY open flydata pix as you normally would Open the new vector that you created
36. if through the X defaults file in the user s login directory The available resources are For general purpose font for most applications fly fontList lt font gt e g fixed For font used in areas requiring monospaced characters e g main text in help panel fly fixedFont lt font gt e g 10x20 For background color for most panels fly background lt color gt e g grey For color of all menu bars fly MenuBar background lt color gt e g thistle Color for all title bars fly TitleBar background lt color gt e g lightsteelblue Available fonts and colors will depend on your system Under some environments such as HP VUE customization is handled by means other than the X defaults file See the operating system user documentation for these environments To set these resources system wide you must create an application default file called fly with the same format as the X defaults file It is typically placed in the directory usr lib X11 app defaults 62 PCI Geomatics Appendix B Additional Information High Background Value If you are using 16 bit data that has a very high background value i e 32767 the image may not render properly in the view To work around this situation type the following command at the command line fly datamap 32767 0 This is also explained in the command line help Converting Image Files to Digital Video You must convert files to a v
37. ing a FLY Demo direction and view simultaneously click inside the circle indicator To change view only right click inside the circle indicator e Elevation slide control changes the elevation of the view in the Rendering Window The range of elevation values can be adjusted through the Options menu on the main panel e Speed slide control changes the file reading rate of the Rendering Window The range for this control is adjusted through the Options menu The text information to the right of the Direction control reports the current position speed and direction Flying Through Your Terrain Figure 3 13 User Free Flight command You are now ready to fly through the terrain in the rendering window To start flying e Click the User Free Flight command on the main panel EN The terrain moves in the direction and speed you select from the Control Panel If you have not selected a speed or direction FLY will use default settings To stop the flight e Click the User Free Flight command again The flight stops at the current position FLY User s Guide 49 Flying Through Your Terrain Figure 3 14 Nadir View command Figure 3 15 Nadir Window showing over head view of terrain To resume free flight e Click the User Free Flight command again Flying from the Nadir Window FLY provides an overhead or nadir view of the terrain to help you fly with added visual accuracy To open the Nadir
38. layback occurs from the current position along the path Selecting a node in the list will change the path position During playback all of the conventional methods of control are disabled and the flight panel cannot be closed The continuous playback mode repeats playback until you click the stop command To stop continuous playback click the Continuous Playback command in the lower right of the panel Saving Your Flight Path Movie FLY creates a movie as a series of individual images or frames and assigns consecutive file names to each image file For example if TIFF format is chosen using the base file name FLY the files are assigned names in the following order 1 FLY 00000 tif 2 FLY 00001 tif 3 FLY 00002 tif and so on to the last file in the flight path There are six image file formats to choose from e TIFF e TARGA e BMP e PPM e JPEG e Parallax movie format AK Note You must convert files to a video format to retrieve them and play them back FLY cannot save reload and replay digital video files A separate software product is required to convert the image files into a digital video format such as QuickTime AVI or MPEG For FLY User s Guide 23 Creating a Flight Path more information see Converting Image Files to Digital Video on page 63 Select the format you wish to use from the File Format menu on the Movie Loop Frame Generation panel Figure 1 14 shows the File Format menu
39. lor data from the File drop down menu on the main panel To load a FLY terrain 1 Click the File menu on the main panel 2 Click the Load DEM RGB command in the File menu 42 PCI Geomatics Chapter 3 Running a FLY Demo Figure 3 3 FILE menu Figure 3 4 Load Elevation i Load Elevation and Color and Color Elevation Information Panel 3 On the Load Elevation and Color Panel click the Select Elevation File command at the top of the panel FLY User s Guide 43 Loading the Terrain Figure 3 5 Database File Selection Window showing demo folder Figure 3 6 Database File Selection Window showing flydata database file The Database File Selection window opens showing a list of the file folders in the geomatica_v90 directory L 1x Database File Selection a geomatica_v82 gt c gkstyles Look in etc Qiastyles exe Cuser hlp lib models pro psfonts Files of type fal Ca z Cancel 4 Double click the demo folder The file window shows the demo database files L 1x Database File Selection Ge daa Look in x eltoro a fly3d sh El tydata a flytrue sh a irvine a landuse rst a map100 a relief mah a relief rst a tourism sym File name Files of type fai EI Cancel 5 For this demonstration click on the flydata file 6 Click the Open command 44 PCI Geomatics Chapter 3
40. mum field The Scaling option sets the type of scale for elevations A square scale measures elevation proportional to the square of the slide value Selecting an Elevation Mode You can change the way your flight position is displayed in the Rendering window during flight with the Mode menu No Collision mode never shows the rendered image below the land elevation FLY automatically adjusts the terrain keeping the view above the surface The land elevation is shown on the Control Panel Relative mode shows the land elevation and the elevation scale value Absolute mode scales the elevation directly as the rendering height When the elevation view drops below the terrain the rendered image appears as vertical strips because the view is lower than the terrain To regain a view above the terrain FLY User s Guide 35 Editing Rendered Images Figure 2 15 Speed Options dialogue box increase the value in the elevation Minimum field on the Elevations Option panel Setting Speed Options The Speed Options panel controls settings for viewer speed fl Speed Options tx Speed Maximum feooo km h Scaling Linear Close Help The Speed Maximum field determines the range of speed values used by the Speed slide control on the FLY Control panel The Scaling field changes the type of scale used to determine the speed of the viewer A square scale gives a speed value proportional to the square of the value on th
41. n You can fly through the terrain in the Rendering Window controlling your flight using your mouse buttons to turn pause run and change elevation To turn changing the direction of view and movement click on the Rendering Window in the direction you wish to go To toggle between pause and run hold the CTRL key and click your left mouse button With a three button mouse press the middle button For a higher elevation right click in the upper part of the window For a lower elevation right click in the lower part of the window ee FLY Rendering Window 26 PCI Geomatics Chapter 2 Flying Through the Terrain Using the FLY Control Panel The FLY Control panel has five areas that set and report characteristics for position direction elevation and speed Figure 2 3 The FLY Control panel FLY Control Panel ssi i lt i sSsSS E Control Panel FLY Control Panel ssi i lt i sSsSS E x 512P 512L 2 389 m Land 2 339 m Speed 1100 km h Face Dir 91 Move Dir 180 A Position Indicator B Direction Control C View Control D Elevation Slide Control E Speed Slide Control There are four controls available in the FLY Control panel Position shows your location in the terrain The corners of the window correspond to the corners of the Render window To change the view in the Render window click anywhere inside the Position Window The Render window view
42. ns a step by step guide to loading and running one of the demonstration files that comes with your FLY software The FLY CD contains a demo file folder with all the data you will need to generate a three dimensional terrain create and view a flight plan and use all the features and functions in the FLY software In this chapter you will learn how to e Open the FLY application e Load your terrain by selecting color and elevation channels e Control free flight with the FLY Control Panel e Fly through the terrain in the Rendering Window e Create a flight plan in the Nadir Window e Generate and Control a Movie loop from data you select To open FLY click the FLY command in the Geomatica toolbar or click the FLY command from the programs list in the Start menu FLY User s Guide 41 Loading the Terrain Figure 3 1 The Geomatica FLY command NA The main panel and the Render window appear on your desktop Figure 3 2 shows the FLY main panel with the Render window No files have been loaded so the function commands are unavailable and the render window is empty Figure 3 2 FLY Main Panel and Rendering Window before files are loaded ae RA idno pi ESFLY Eile Edit Options Loading the Terrain You must load a Digital Elevation Model DEM file and either a color channel file or a black and white shading file for each FLY session to generate a motion graphic Load both the DEM and Co
43. orporation Microsoft is a registered trademark and Windows is a trademark of Microsoft Corporation MrSID is a registered trademark of LizardTech Inc Copyright 1995 2003 LizardTech Inc All rights reserved UNIX is a registered trademark of The Open Group Copyright c 2002 Mapping Science Inc GeoJP2 is a trademark of Mapping Science Inc The GeoJP2 format is the intellectual property of Mapping Science Inc All other trademarks and registered trademarks are the property of their respective owners Table of Contents Chapter 1 Chapter 2 Chapter 3 Appendix A Appendix B Introducing FLY How to Use this Manual 0 cccccccceeeeeeeeeeeeeenteeeeeeeenueeeeeeeesaeeeeeneeaes 2 What you can do With FLY 0 ee ceeeeeeeeeeecneeeeeeetaeeeseeeteeeeeeeeaees 3 Getting Familiar with FLY Using the Main Panel rerin a a T D 5 Managing Vector Layers eeceecceeeeeeeeeeeeeeecneeeeeeeaaeeeeeeenaeeeeeseaas 14 Defining Raw Database FileS 0 ccccceceeeeseeeeeeeeeteteeeeeeeeteeeeeeees 17 Creating a Flight Path 0 cc ecceeeeee ee teeee eee enneeeeeeteeeeeeetaeeeeee 19 Flying Through the Terrain Controlling Flight in the Rendering Window ccceeeeeeeeeee 26 Editing Rendered Images ccceeceeecceeeeeeeeeeeeeeeeeeeeneeeeeeetnieeeeeeeeaa 31 Checking Performance on Your System c ccceeeeeeeeeeeetseeeeeeees 39 Running a FLY Demo Opening Fy wats Seu ee eee ea ane 41 Loadin
44. ou can make dozens of adjustments using the various controls 56 PCI Geomatics Using FLY from the Command Line Using Command line Switches If you wish you can start and operate FLY using command line switches The command string example below loads the file flydata pix using channels 4 2 and 3 for red green and blue Channel 5 is used for elevation A linear enhancement is performed on the color data and the elevation is stretched by a factor of 2 At start up the viewer is positioned at x 512 y 10 with an elevation of 400 The view direction is 180 degrees The tilt angle is 30 degrees fly file flydata pix chan 4 2 35 linear heightmag 2 xy 512 10 z 400 dir 180 tilt 30 The following tables list the commands used to operate FLY from a command line prompt FLY User s Guide 57 Appendix A Using FLY from the Command Line To do this Enter this Command Specify the files for color and ele file file vation data chan e Assign elevation or color chan nels chan grey e chan rgbe Assign size of a pixel on the ground in metres 30 m default pixelsize size Step resolution of elevation data 1 0 meter default pixelheight size Set size of output for rendered frames 320 by 240 default frame xsize ysize Set elevation scaling factor val ues from 0 0 to 3 0 1 0 default heightmag factor Set initial position X Y
45. ourth and final number is the node elevation FLY User s Guide 21 Creating a Flight Path You can edit nodes with the commands below the list window The following list shows the name of each command and a description of what it does Clear removes the entire list of nodes from the window Update changes the selected node to the current rendering characteristics Insert changes the order of a node in the list by inserting it behind the current node and shifting other node entries down one level Add places a node selected in the Nadir window at the end of the current list A newly added node is highlighted Delete removes a highlighted node from the list Generating a Flight Path Movie Loop Warning Be sure you have adequate disk space before recording flight path files Flight path files require large amounts of disk space For example the rendered flight path illustrated in Figure 1 11 is approximately 400 MB To make a smaller file use fewer nodes or place your nodes closer together for a shorter overall flight path After you have selected the nodes for your flight path movie you can generate your movie loop To generate your movie click on the Generated Movie Loop command in the lower middle of the Flight panel Video playback is controlled by clicking on the VCR type controls above the Generate Movie Loop command 22 PCI Geomatics Chapter 1 Getting Familiar with FLY Flight p
46. s of image data are interleaved This field is not applicable for single channel image files The Data Type field defines the size and type of the data for each pixel Enhancing Color In the Load Elevation and Color the Load Elevation and Grey Level and the Load Elevation and Shade in Full Color panels a color enhancement can be specified for each channel of the terrain From the Color Enhancement menu in the Color Information section choose Linear for linear enhancement 18 PCI Geomatics Chapter 1 Getting Familiar with FLY Root for square root enhancement or Equalize for histogram equalization Creating a Flight Path Flight paths are created in the Nadir window and saved as a series of still image files to your local hard drive The flight path graphics are displayed using the same elevation and color characteristics as the image in the rendering window A flight path requires two or more nodes Nodes store the position direction and speed characteristics along with the pitch field of view and zoom levels The path is generated along a series of nodes After you select the nodes the rendered graphic files travel along the nodes The viewer passes through each node in the direction it was recorded The path is shown as a bezier spline connecting the nodes on the terrain in the Nadir window Figure 1 11 shows an exaggerated illustration of a flight path generated from a series of nodes The numbered square
47. s represent the nodes in Nadir window L Note Figure 1 11 is exaggerated for clarity Your nodes and flight path will appear smaller in your Nadir window FLY User s Guide 19 Creating a Flight Path Figure 1 11 Nadir Window ES FLY Nadir Window D demo flydata pix showing a flight path composed of 5 nodes Selecting Nodes for Your Flight Path Together the Flight Panel and Nadir window build your flight path To open the Flight panel click the Flight Path Editing command on the main panel 20 PCI Geomatics Chapter 1 Getting Familiar with FLY Figure 1 12 Flight Path Editing command The FLY Flight Panel opens Figure 1 13 Flight panel showing ESFLY Flight Panel Mm E coordinates Total Path Length 16736 m and elevations for 5 nodes in the flight path Clear Update insert Add Delete I Smooth Flight Path Playback Continuous Playback On lt lt lt it gt gt gt Close Generate Movie Loop Help The total path length appears at the top of the panel The length of the path increases with additional nodes The window below the total path length displays a list showing the coordinates and the elevation of the current nodes The first number beginning at the left of the listing is the chronological node number The second and third numbers in brackets are the x and y screen coordinates Both of these values are expressed in pixels The f
48. s require one color channel The Load DEM Pseudo Color option is used with 8 bit color imagery such as 8 bit TIFF BMP and SPANS files The color information is automatically loaded with the imagery data To create a pseudo color terrain select the Load DEM Pseudo color option from the File menu The Load DEM Shade RGB and the Load DEM shade BW commands create images that show sunlight throughout the terrain using a technique known as shaded relief FLY User s Guide Using the Main Panel Each of the Load file commands opens a different panel with more controls for loading and creating specific terrains Figure 1 3 shows the Load Elevation and Color panel Figure 1 3 Load Elevation 8 Load Elevation and Color and Color panel Elevation Information quirements 2 MB All FLY data files are loaded through panels similar to the Load Elevation and Color panel shown above Below is an explanation of the key parts of the FLY panels and the windows that open from the panels 8 PCI Geomatics Chapter 1 Getting Familiar with FLY Loading Elevation Data The Select Elevation File command on the Load Elevation and Color Panel opens the Database File Selection window When you choose a database file the Database Channels window opens Elevation and color channels are listed together in this window Figure 1 4 Database File D demo flydata pix Channels Window micrometres Red Color 60 micrometr
49. scale shaded terrains 7 terrain from elevation only 12 vector layers 16 loading terrain from elevation only 12 loading terrains color 7 in demo folder 42 monochrome 7 M main panel 5 using 5 managing vector layers 14 menu File 6 monochrome terrains loading 7 movie files generating 22 playing 22 saving 23 MPEG encoders 63 N nadir window color options 30 controlling flight in 28 controls 28 options 29 nodes defined 19 selecting 20 O options color 30 nadir window 29 path color 30 setting elevation 34 setting speed 36 vector layers 15 options menu using 34 P parameters changing 3D 33 path color editing 30 playing movie files 23 pseudo color terrains loading 7 R raw file definitions specifying header bytes 18 working with 13 render window resize 32 rendered images editing 31 rendering mode choosing 38 rendering window controlling flight in 26 resize 32 resize render window 32 running FLY demo 41 S saving movie files 23 selecting color shaded terrains 7 coordinate system 36 data channels 11 demo color channel 46 demo elevation channel 45 demo file 44 greayscale shaded terrains 8 68 PCI Geomatics Index nodes 21 vector layers 14 setting elevation options 34 rendering quality 37 speed options 36 shaded terrain light angle 13 smooting elevation 9 speed controlling 27 setting options 36 startin
50. stereo image for the entire screen Special liquid crystal stereo glasses are required to view the rendered image Stereo Glasses Expanded mode expands the vertical and horizontal size to produce an image 4 times larger than Stereo Glasses mode To start or stop flight press the space bar Pressing any other key will return you to normal mode Checking Performance on Your System The Frames Per Second command in the Options menu opens a panel showing a number of benchmarks for evaluating FLY s performance on your system The benchmarks are based on the last ten views generated in the rendering window FLY User s Guide 39 Checking Performance on Your System Figure 2 19 Benchmarks panel To test FLY s performance you must use the User Free Flight feature To open the Benchmarks panel click the Options menu then click Frames Per Second The Benchmarks panel opens You can check the information in the Benchmarks panel ft Benchmarks Bi ks Average Task Time ds Average Rendering Time 0 068 Average Draw Time 0 005 Average Vector Draw Time 0 000 Average Fogging Draw Time 0 000 Average Total Time 0 000 Statistics Frames Per Second 0 000 Current advancement distance is 0 00 m frame Usage Summary Rendering 0 000 Display Update 0 000 Vector Rendering 0 000 Fogging 0 000 Other 0 000 Close Help x 40 PCI Geomatics Running a FLY Demo Opening FLY This chapter contai
51. ter a path to store your rendered flight plan on your local hard drive in the Directory for Generated Frames text box shown by the circled area in Figure 3 20 4 When the appropriate file path is entered click the Generate Frames command in the lower left of the Movie Loop Frame Generation dialogue box Frames may take several minutes to generate During rendering the commands on the main panel are not available An indicator opens at the bottom of the main panel showing the progress of the frame generation and the position indicator in the Nadir Window moves along the flight path EAFLY le Edit Options FLY User s Guide 55 Generating a Movie Loop Figure 3 22 VCR controls at the bottom of the FLY Flight Panel When FLY has finished generating the flight path frames the main panel commands are available again The video play commands along the lower part of the Flight panel control the speed and direction of video replay like conventional VCR controls Click the Play Stop Fast Forward Reverse and Fast Reverse buttons to change the video replay Now that you know the basics for using FLY try a few adjustments on your own Refer to Flying Through the Terrain on page 25 for details on tailoring your FLY sessions to exactly what you want You can add fog to your rendered terrain adjust and record changes in elevation and texture and even create and view your flight in 3 D Y

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