Home

GeoViewer 5.5 User Manual

1. Used as the foundation for LizardTech s LIDAR Com pressor and its Express Suite line of geospatial products GeoExpress Express Server and Spa tial Express software the MrSID Decode SDK is a robust toolkit suitable for complex application development needs MrSID Decode SDK is available for free download at http developer lizardtech com GeoViewer and Patents This software is protected by U S Patent Nos 7 218 789 7 454 084 7 508 991 and 5 710 835 Canadian Patent No 2 236 943 and European Patent No 0 864 135 and by additional U S and For eign Patents Pending 49 Index 3 32 bit 3D viewing 6 64 bit A About box Accessing the Measure tool Adding a layer from local directory via Express Server via JPIP server via WMS Axis markings B Bands selecting setting layer transparency C Checking for Updates Clearing measurements Context menus Coordinate reference systems Copying measurement data Creating a new group Creating a new project D Displaying the GeoViewer About box Displaying Tips and Tricks 20 47 35 15 15 15 17 16 22 24 31 36 12 27 36 30 29 47 47 E Earlier versions Exporting maps and layers F File formats File menu Focal point G Georeferencing preferences reconciling GeoViewer update preferenences GeoViewer user interface Getting oriented Grouping layers H Help menu Hiding layers l I
2. 41 For more information see Chapter 4 Viewing Maps and Layers on page 15 The Menu Bar The Menu bar offers commands and options on six menus and their submenus as described in the table below The Menu Bar Item or Submenu Description Add layer Local layer Enables you to specify or browse directories for one or more images mosaic tiles or vector or LiDAR files Express Server Layer Enables you to specify and connect to an Express Server browse catalogs and choose imagery WMS layer Enables you to specify and connect to a WMS server select layers and specify format and EPSG code JPIP layer Enables you to specify a WMS server and select an image for viewing via the JPIP protocol Add group Creates a folder in the Project pane for grouping layers You can name each layer group as it is created Recent layers Enables you to browse for recently opened layers Unavailable grayed out until after first layer is added Load project Enables you to specify or browse directories for an existing project Recent projects Enables you to browse for recently opened projects Unavail able until after first project is saved Close project Closes the current project and opens a new untitled one Save project Saves changes you have made to the current project Save project as Enables you to specify a name and location for saving a project Bat Quits the GeoViewer application Remove selected Rem
3. Deselecting Layers Selecting and deselecting layers is different from hiding and showing them Showing or hiding a layer simply means using its checkbox in the Project pane to make it appear in or disappear from the Map pane for more information see Hiding and Showing Layers on page 17 Selecting layers read ies them for a particular operation such as removing them from the list or viewing their metadata You can select any layer in the Project pane whether it is hidden or shown To select a layer click the layer s name TIP Use the Shift Click method to select multiple consecutive layers in the list Use the Ctrl Click to select multiple not consecutive layers in the list or to deselect a layer from a group you have selected Once you have the desired layers selected right click on any member of the selection to access the Project context menu for available operations alternatively choose from the commands on the menu bar Selecting Bands GeoViewer enables you to specify any three bands of a multibanded or multispectral layer to view as the red green and blue bands or any single band to view as the grey band By default if a layer has three or more bands the first three will be mapped to red green and blue and if there are less than three the first band will be displayed as the grey band To select bands from a multispectral layer 1 Right click a layer or selection of layers in the Project pane and choose Sele
4. Grid Referencing System e Native the CRS of your map determined when the first layer was added e Pixels By default GeoViewer reports positions in Latitude Longitude and Native You can change this and other status bar options in your UI preferences see Setting User Interface Preferences on page 41 Context Menus A context menu sometimes called a right click or pop up menu offers quick access to common actions relevant to a particular pane GeoViewer has two context menus the Map and the Project context menus The Map context menu provides quick access to common navigational commands and to the Meas ure tool The Project context menu provides quick access to common commands relating to layers To access the Map context menu right click anywhere in the Map pane To access the Project context menu right click any layer or any selected group of layers listed in the Project pane The individual commands and options displayed on the context menus are described in appropriate sections elsewhere in this help Some commands may be unavailable grayed out depending on what is selected when you access a context menu 12 Chapter 3 Getting Oriented in GeoViewer The Map context menu is shown in the illustration of the user interface see GeoViewer s User Inter face on page 7 13 Chapter 4 Viewing Maps and Layers This chapter covers adding images or layers see A Note about Terminology on pa
5. Map pane is the large pane occupying the right side of the user interface This is where you view detail in maps and layers and mark points for measurement The Map pane displays the map at the zoom level you select and centered according to whatever pan ning movements you perform As you navigate within the map zoom in pan etc the view in the Map pane changes accordingly 11 LizardTech GeoViewer 5 User Manual The Map pane has two tabs one for two dimensional 2D viewing and one for three dimensional 3D Viewing Select the tabs at the bottom left corner of the Map pane For more information see Chapter 4 Viewing Maps and Layers on page 15 The Project Pane When you open a layer see A Note about Terminology on page 1 a temporary project file is created even if you only view a single layer and then close it The Project pane enables you to add layers to your map and turn each layer on or off for creating and exporting different views For more information see Chapter 6 Working with Projects on page 29 The Status Bar Located at the bottom of the user interface the status bar reports the map s coordinate reference sys tem whether GeoViewer is idle or working and the position of your cursor as it moves across the Map pane 2D mode or the x and y coordinates of your focal point 3D mode Cursor position is reported in any or all of the following georeferencing modes e Latitude Longitude e MGRS Military
6. cc eto koo pin ERE xU apan BA per NG le de era e 8 The Toolbar ooo 220 cece cece ce ccccccccccccccccccccccccccccecceceececeeceeeeeeeeeee 10 The Map Pane isc oot 2 125 NAN a ub dente e ss dks ER nanalo t Dore o deh nG 11 The Project Pane u os neds de da NAN deine E REPRE dances DE EI paang 12 The Status Bar eru tete es dot ee sense 12 Context Menils oce teed do e Alang ed ge opt lo od dea NE 12 Chapter 4 Viewing Maps and Layers 2 0002000ccccceennenen 15 Adding a Layer to View 15 Hiding and Showing Layers 0 0 0 eee eee ccc ccc ccc ccc ccc cece re esee 17 Panning RR 18 Zooming IN ANA Quti oou SEDE LM B ERR 19 3D Viewing oco c6 cone coo UID AA Ut LUNA DL LET 20 Restoring Original Viev 0 0 0 es IRR sess esses 23 Customizing GeoViewer s Background Color Luuu uuu 23 Selecting and Deselecting Layers sees nee 24 Selecting Bands 7 24 Viewing Layer Metadata 0 0 0 esse RR cnc 25 Chapter 5 Working with Coordinate Reference Systems 27 Setting the CRS for a Map cnn cnn 27 Reconciling Projections Among Layers 0 0 esee nee 27 Chapter 6 Working with Projects 29 Creating a New Projeet 222 22 RR IRR aa nanen 29 Opening an Existing Project s ss eese e 29 Organiz
7. displayed at once can also be raised or lowered from the default of 500 000 For the color gradient that helps you visualize different elevations in the data you can select from a drop down menu of 23 choices You can also manually override GeoViewer s automatic z range behavior and supply your own minimum and maximum z values for your map NOTE Minimum and maximum z values that you set manually are stored in your project file Finally you can show or hide the focal point axis markings or the bounding box of the data by default both are shown 42 Chapter 9 Preferences Setting GeoViewer Update Preferences The GeoViewer update preferences enable you to specify that GeoViewer should remind you to check for a newer version and how often it should remind you for information about checking for updates manually see Chapter 2 Installing or Updating GeoViewer on page 3 By default GeoViewer reminds you every 7 days to check for a new version To change the number of days between reminders 1 Choose GeoViewer update preferences from the Options menu The GeoViewer Update Preferences dialog appears 2 Enter a number of days and click OK GeoViewer will remind you check for updates at the frequency you specified to If a new version becomes available the Check Updates dialog appears and you may download the new version see Chapter 2 Installing or Updating GeoViewer on page 3 To disable the reminders 1 Choose GeoVi
8. it from What is actually happening is that your focal point is shifting as you pan relative to the data so that your view point now rests on the surface of a new orbital sphere 21 LizardTech GeoViewer 5 User Manual With all this in mind we recommend that you simply take the navigation tools for a test drive You will notice several things right away e Zooming in reduces the diameter of your orbital sphere You can zoom in to the space occupied by the data points so far that you can then use the orbit tool to revolve in a very tight circle so that the data appears to revolve behind you In fact you are still orbiting the focal point but at a much tighter radius e You cannot zoom in past your focal point If your focal point is in the middle of the body of data it may be in the air above a building or other item you wish to view and you cannot zoom in any closer to the object behind it In this case you should zoom back out a little orbit so that you can see the relationship of your target to your focal point make sure axes are showing see 3D Viewing Preferences on page 42 and then use the Pan tool to move the data so that your focal point is behind your target e If you pan far enough it is possible to move your data so that it no longer lies in your orbital sphere at all In a very short time you will develop patterns of panning zooming and orbiting that best suit your workflow To start out you may want
9. products geo LiDAR Compressor LiDAR Data Meets the MrSID Format LizardTech LIDAR Compressor software enables you to tum giant point cloud datasets into effi cient MrSID files that retain 100 percent of the raw data at just 25 percent or less of the original file size lossless compression If storage requirements are critical you can reduce your LiDAR file sizes by 90 percent or more by choosing a higher compression ratio and letting LiDAR Compressor select the best way to reach a desired file size lossy compression Unlike raw LAS or ASCII data LiDAR files compressed to MrSID are easily managed resources you can extract derivatives from again and again For more information about LIDAR Compressor visit www lizardtech com products lidar Express Server Image Delivery Software for Geospatial Workflows LizardTech Express Server software is the best solution for distributing imagery in MrSID or JPEG 2000 format With Express Server users on any device access imagery faster even over low band width connections Express Server is faster more stable and easier to use than any other solution for delivering high resolution raster imagery For more information about Express Server visit http www lizardtech com products exp MrSID Decode SDK Integration of MrSID Support into Third Party Applications The MrSID Decode SDK provides a framework for extracting raster or LiDAR data from MrSID files including MrSID Generation 4 MG4
10. this computer completely removes the application Chapter3 Getting Oriented in GeoViewer GeoViewer s user interface is shown in the illustration below with its basic components labeled Brief descriptions of these components are given further below They are discussed in more detail on their respective pages GeoViewer s User Interface Overview pane Menu bar Toolbar UU AAA File Layer Navigation Tools Options Help OJO PASAS af Group YINY block UTM shp Y ny 6 30 00 new sid Home v Pan Zoom In R Zoom Out Smooth Zoom WGS 1984 UFM Zone 18N Lat tong 40 700075 73 956977 The Overview Pane The Overview pane occupies the upper left comer of the user interface It displays a fixed overview of the map see A Note about Terminology on page 1 At zoomed in views a navigation rectangle inside the Overview pane delineates the region that is in view in the Map pane LizardTech GeoViewer 5 User Manual As you pan the image in the Map pane the navigation rectangle moves in the Overview pane to reflect the panning motion so that the rectangle always represents the current Map pane view You can use the Overview pane to pan simply move the navigation rectangle click and hold then drag to recenter the view showing in the Map pane By default the navigation rectangle is red and has a width of three pixels You can change these attrib utes in your UI preferences see Setting User Interface Preferences on page
11. Geo Viewer will not need to query you each time you add the first layer to a project Reconciling Projections Among Layers The first layer to be loaded determines the coordinate reference system CRS for the map Layers added after the first layer are put into the CRS you specified for the first layer except in the following Cases e The subsequently added layer is in pixel space In this case the layer s coordinates are treated as being in the same CRS as that of the map when they may not be e The subsequently added layer has no georeferencing In this case the subsequently added layer is positioned in the map using any geocoordinates available such as information in a world file e The subsequently added layer is a LiDAR file In this case reprojection is not supported WARNING Either of the first two cases above may result in undesirable positioning of that layer So you should not import a nongeoreferenced layer unless you are fairly confident that you know what CRS it is projected in 27 LizardT ech GeoViewer 5 User Manual By default you are notified whenever there is a potential mismatch in projections If you wish you can use your preference settings to have GeoViewer always handle these cases in specified ways see Setting Georeferencing Preferences on page 41 NOTE Some reprojections such as WGS84 to UTM may yield errors or unusable results 28 Chapter 6 Working with Projects When you run GeoViewe
12. GeoViewer 5 3 Click Windows 32 bit or Windows 64 bit under GeoViewer 5 4 Read the license agreement and click Agree to begin installation The installation process automatically checks your computer to make sure your version of Windows has the prerequisite software Note DirectX is an exception You must download DirectX from Micro soft s website If prerequisite software is missing and you have administrative privileges you may be prompted for administrative credentials and the software is automatically downloaded and installed If you do not have administrative privileges see your IT administrator for help downloading and install ing the software Once all the prerequisite software is installed the installation process installs and runs GeoViewer NOTE When using Firefox to access the download page you may have to save the executable setup exe and then run it locally Checking for Updates You can check for newer versions of GeoViewer anytime or you can set GeoViewer to automatically remind you to check for updates You can even specify how often it should prompt you By default GeoViewer reminds you every 7 days to check for a new version To manually check for updates 1 Choose Check for updates from the Help menu The Check for Updates dialog appears as shown below with information about your current version and the date and time you last checked and the latest version Note the Latest Version field is blank un
13. In and Zoom Out Tools on page 19 Smooth The Smooth Zoom tool enables you to zoom in or out in a continuous motion Zoom see Using the Smooth Zoom Tool on page 20 Orbit Focal 3D mode only Moves your viewpoint in an orbit around your focal point Dis jg S Ebo E El Point abled in 2D viewing Refresh 3D mode only Freshly displays a configurable number of points that fall Points within the current view Disabled in 2D viewing 10 Chapter 3 Getting Oriented in GeoViewer Measure The Measure tool enables you to measure distance between points see Chapter 7 Measuring Distance on page 35 Tips and Clicking the GeoViewer logo on the toolbar displays the Tips and Tricks Tricks dialog see Displaying Tips and Tricks on page 47 The toolbar also offers a Zoom slider shown below for zooming in or out by increments see Using the Slider Bar on page 19 TIP If you resize your main window to smaller dimensions some of the tools may disappear from the toolbar starting on the right These tools can still be quickly accessed using the More Buttons drop down In the illustration below several buttons and the Zoom slider have been removed to the More Buttons drop down 9 GeoViewer untitled File Layer Navigation Tools Options Help SONOROS SI W XS LIZARDTECH 10tet279227 sid P Lao Lo NAD83 UTM zone 10N Lat Long 47 157936 122 626171 Idle The Map Pane The
14. LizardTech GeoViewer 5 User Manual Copyrights Copyright 2009 2010 LizardTech All rights reserved Information in this document is subject to change without notice The software described in this document is furnished under a license agree ment or nondisclosure agreement The software may be used or copied only in accordance with the terms of those agreements No part of this publication may be reproduced stored in a retrieval sys tem or transmitted in any form or any means electronic or mechanical including photocopying and recording for any purpose other than the purchaser s personal use without the written permission of LizardTech LizardTech acknowledges and thanks the many individuals and organizations whose efforts have made our products possible A full list of copyright trademark and credit information is available in the document Copyrights Trademarks and Credits installed automatically with your product LizardTech 1008 Western Avenue Suite 200 Seattle Washington USA 98104 206 652 5211 www lizardtech com Table of Contents Chapter 1 Introduction 2 2 eee 1 System Requirements esses nenn 1 A Note about Terminology 0 sese e enr ees 1 Chapter 2 Installing or Updating GeoViewer 3 Chapter 3 Getting Oriented in GeoViewer 2 one eee 7 The Overview Pane ati ipft lese dere rer wont tuns 7 The Menu Bar
15. allation directories This information can be used to troubleshoot problems or submit bug reports To view system information choose System Information from the Help menu 46 Appendix B Product and Company Information Displaying Tips and Tricks When you open GeoViewer a dialog displays information that might help you work more efficiently as shown below The information may be a procedural tip a shortcut or other trick or even a pro motional note From this dialog you can use the buttons to view the previous tip the next one or all of them at once and you can instruct GeoViewer not to show you tips and tricks on startup anymore To prevent the Tips and Tricks dialog from appearing on startup clear the Show tips at startup checkbox To access the Tips and Tricks dialog later click the GeoViewer logo ka on the toolbar or choose Tips and Tricks from the Help menu Displaying the GeoViewer About Box Information about which version of GeoViewer you are running is available in the About box shown below The About box also contains copyright information gt About GeoViewer www lizardtech com O Geol iewer This product in protected by U S and International LOI LIZARDTECH Copyright laws as described in the license agreement Version 5 50 3327 64 bit This cade is Copyright c 2011 LizardTech 1008 Western Avenue Suite 200 Seattle WA 98104 Unauthorized use or distribution prohibited Access to and us
16. ame several types of information If any item of the outline is collapsed you may expand it by clicking the arrow next to it Each layer is listed sep arately in the outline The right side displays the details for the item selected in the outline Under each layer name information is listed that might include the following depending on the file for mat and the source of the layer 26 Image properties width height number of bands color space sample type bits per sample format and compression ratios Vector properties number of shape layers layer name layer feature count and format LiDAR properties format number of points min max scale and offset for x y and z and supported fields Geographic properties left top right and bottom coordinates x and y resolution CRS name and well known text string WKT File properties full layer path size creation time modification time attributes and owner Express Server properties root URL server layer name and catalog spatially indexed true or false WMS properties root URL GetCapabilities URL server layer name and title CRS may appear as SRS format and bounding box JPIP properties root URL server layer name and port Metadata o Basic Metadata original file size input format original file name encoding SDK ver sion encoding modifications image width and height image colorspace image data type NODATA pixel value transparent pixel val
17. asure from the Tools menu e Right click in the Map pane and choose Measure from the context menu Using the Measure Tool Taking Measurements To measure the distance between two points 1 Click the Measure icon on the toolbar or choose Measure from the Tools menu if the Meas ure tool is not already active The Measurement pane appears 2 Click in the Map pane at the point where you wish to begin measuring 3 Click the map again at a second point The distance between these points is listed in the Seg ment Length s field preceded by 1 Note For a single measurement this distance is also the value reported as the Total Length below the Segment Length s field To measure the total distance of several line segments 1 Perform steps 1 3 above 2 Click the image again at a third point and a fourth etc Each time a point is clicked on the dis tance between that point and the previous point is added to the distance displayed in the Total 35 LizardTech GeoViewer 5 User Manual Length field as shown below Measurement Segment Length s 453 1093 208 4 194 6484 532 82643 197 90907 7 477 32588 Total Length 4822 38138 Display Units meters Source Units Clear measurements Copy to clipboard NOTE By default measurements are displayed in the same unit as the source units of the image To change the display unit see Setting Measurement Units on page 37 Clearin
18. asurement unit from the Source Units drop down menu 38 Chapter 8 Exporting Maps and Layers In 2D mode GeoViewer enables you to save a particular view or an entire map as a GeoTIFF PNG or JPEG file NOTE LiDAR data can only be exported as two dimensional layers Exporting the Current View Exporting the current view creates a file of exactly what you see in the Map pane at that moment minus the Measurement pane if it is open Exporting a Map When you export a map GeoViewer creates a file showing the region covered by all the layers in the map called the minimum bounding box regardless of which layers are hidden or shown This means that if your map includes six mosaic tiles of equal size and you have hidden five of them by deselecting them see Hiding and Showing Layers on page 17 the single layer you have left selected will be the only layer visible in the exported image but it will take up only one sixth of the exported image s area and it will be positioned in proper relation to the five invisible ones To export a view or an entire map 1 Select Export from the tools menu then choose Export current view or Export map The Export Map or Export View dialog appears 2 Select a file format from the Format drop down menu You can save your view or map as a GeoTIFF PNG or JPEG 3 Select aresolution from the Resolution drop down menu The default resolution is Medium 2048 x 2048 pixels Note that the dimen
19. ating in Three Dimensions Three dimensional viewing is complex and the tools you use to pan and zoom a flat 2D image may seem unintuitive when you re using them for 3D viewing So let s take a closer look and establish a metaphor for what s really happening in 3D mode Imagine that when you view your data you are looking at the center of a sphere Let s call it the orbital sphere The outer surface of the orbital sphere represents the infinite possible positions your view point can occupy Your focal point is always the center of an orbital sphere no matter how you navi gate When you first view your data on the 3D tab that data is centered where the focal point is but it is important to recognize that the data and the focal point are not bound together When you orbit the data your viewpoint is essentially revolving around the focal point and if you have not yet panned the data your viewpoint is also revolving around the center of the body of data Imag ine your viewpoint swirling around on the surface of the orbital sphere like a camera on a spherical scaffold Relative to the viewpoint your data appears to turn and roll around according to your orbiting movements Panning the data is different in that the viewpoint does not move along the surface of the sphere but up and down or sideways on the plane tangential to the sphere This makes the entire body of data appear to move sideways or up or down regardless of what angle you are viewing
20. ct bands from the context menu The Select Bands dialog appears as shown below 24 2 Chapter 4 Viewing Maps and Layers Select Bands Select bands from the drop down menus for each of the three bands or the grey band then click OK NOTE Band selection is disabled in the following cases The selection is a CMYK or CMYK talpha image or contains a CMYK or CMYK talpha image The selection includes both RGB images and RGBt alpha images The selection includes images with different numbers of bands for example a grayscale image and an RBG image The selection in the Project pane includes a group label Viewing Layer Metadata GeoViewer enables you to view the metadata of the layers loaded into the Project pane as well as basic image and file information To view metadata for a layer or layers 1 2 TIP In the Project pane select one or more layer names Layers do not have to be showing in the Map pane for you to view their metadata Right click anywhere in the Project pane and choose View layer metadata from the context menu The Layer Metadata pane appears When viewing metadata for a single layer you may combine the steps above by right clicking to select the name 25 LizardTech GeoViewer 5 User Manual Organization of the Layer Metadata Pane The Layer Metadata pane is divided into two sides The left side is a navigation outline listing the names of any layers you selected and under each n
21. e Measure icon on the toolbar or right click in the Map pane and choose Measure from the context menu if the Measure tool is not already active The Measurement pane appears 2 Inthe Measuring pane select a measurement unit from the Display Units drop down menu The Source Unit GeoViewer reads the source units of a georeferenced image meters kilometers feet miles or other when you add it as a layer That unit is reported as the native unit in the Source Unit drop down in Measurement pane and this drop down becomes unavailable You may have images for which the source measurement unit is not known For example the geo coordinates for your image may be stored in a world file or it may have no geocoordinates at all For such cases GeoViewer enables you to supply the source unit yourself If you know the ground resolution how many feet meters or other units each pixel of the image represents you can enter the appropriate source unit and select any desired display unit If you do not know the image s ground resolution then you should set the display unit to pixels When the display unit is set to pixels the source unit is ignored To specify a source unit 1 Click the Measure icon on the toolbar or right click in the Map pane and choose Measure from the context menu if the Measure tool is not already active The Measurement pane 37 LizardTech GeoViewer 5 User Manual appears 2 Inthe Measuring pane select a me
22. e displayed in the Map pane but you can choose not to dis play any layer by hiding it on the Project pane For example you may wish to view just one tile of a mosaic By hiding the layers representing the other tiles you can pan and zoom more efficiently in the layer you re interested in Hiding and showing layers is different from selecting and deselecting them for more information see Selecting and Deselecting Layers on page 24 To hide a layer clear the checkbox next to its name in the Project pane To show a layer again select the checkbox next to its name in the Project pane TIP To hide or show multiple layers at once select them in the Project pane then right click any where in the selection and choose Hide show layers from the context menu In the illustration below a project has been opened that contains a number of mosaicked image tiles Each tile is treated as a layer however several layers have been hidden their checkboxes have been cleared which means that these layers are not currently displayed in the Map pane 17 LizardT ech GeoViewer 5 User Manual 9 GeoViewer Seattle File Layer Navigation Tools Options Help HOJOIIOASASA A MC i Group O 10tet429092 sid O 10tet429077 sid Y 10tet429062 sid Y 10tet429182 sid Y 10tet429167 sid Y 10tet429152 sid Y 10tet429137 sid Y 10tet429122 sid Y 10tet429107 sid Y 10tet444182 sid Y 10tet444167 sid Y 10tet444152
23. e of this code is permitted only under license from LizardTech Portians of the code are protected by US and foreign patents and other filings All Rights Reserved This program utilizes the Galdos GML SDK under license from Galdos Systems Inc 47 LizardTech GeoViewer 5 User Manual To view the About box choose About GeoViewer from the Help menu About LizardTech Since 1992 LizardTech has delivered state of the art software products for managing and distributing massive high resolution geospatial data such as aerial and satellite imagery and LIDAR data Lizard Tech pioneered the MrSID technology a powerful wavelet based image encoder viewer and file for mat LizardTech has offices in Seattle Denver London and Tokyo and is a division of Celartem Technology Inc JASDAQ 4330 For more information about LizardTech visit www lizardtech com Other LizardTech Products Thank you for using LizardTech GeoViewer We at LizardTech are glad to have you as a customer While you re in the shop explore LizardTech s other products for managing high quality images and documents ExpressView Browser Plug in Fast and Easy Viewing of Large Images If you like the features in GeoViewer consider ExpressView Browser Plug in ExpressView enables you to view navigate and print MrSID and JPEG 2000 imagery in Internet Explorer or Firefox Like GeoViewer ExpressView enables you to save a portion of an image in a number of ot
24. ectangle in the Overview pane shows you what portion of the image the Map pane is displaying Using the Slider Bar To zoom in or out by increments using the slider bar do one of the following e Click and drag the knob on the slider bar above the Map pane e Click on the slider bar anywhere to the left or right of the knob Using the Scroll Wheel If your mouse has a scroll wheel you can zoom in and out simply by rolling the wheel back and forth The advantage of this method is that you do not have to be in Zoom In or Zoom Out mode to do this 19 LizardTech GeoViewer 5 User Manual You can zoom back and forth when another tool is selected for example while you are panning or measuring Using Zoom to Layer To zoom to specific layer s using the context menu 1 Right click a single layer name in the Project pane or select several layer names in the Project pane and right click anywhere in that selection The Project context menu appears 2 Choose Zoom to layer s The layer or layers you selected are displayed at best fit in the Map pane Using the Smooth Zoom Tool Using the Smooth Zoom tool gives you fine control over the view To zoom in or out using the Smooth Zoom tool 1 Click the Smooth Zoom icon on the toolbar 2 Click in the Map pane and drag downward to zoom in or upward to zoom out NOTE In quick zooming the centerpoint of the view remains constant If you are using the Smooth Zoom tool and wish to pan left
25. ehavior when a layer is added to the map e Reproject added layers to WGS84 e Uselayer s native CRS e Ask mewhat to do NOTE When a world file is present and the Read world files checkbox and the Use layer s native CRS radio button are both selected world files will take precedence over native georeferencing Warnings There are cases where reprojection is not possible or the layer has no native CRS see Reconciling Projections Among Layers on page 27 By default GeoViewer warns you in these cases and also when it is about to reproject a layer to WGS84 TIP When you are wamed that an layer is about to be reprojected you have the opportunity to select the Always reproject without asking checkbox This clears the Wam me before reprojecting layer checkbox in your preferences Setting User Interface Preferences You may change the look and feel of the GeoViewer interface using your UI preferences settings To set or change preferences 1 Choose UI Preferences from the Options menu The UI Preferences dialog box appears 2 Select a tab on the left and make desired changes see below 41 LizardTech GeoViewer 5 User Manual 3 Click OK Status Bar Preferences The CRS of the map is shown in the status bar in the lower left corner The status bar also tells you whether GeoViewer is idle or working and shows your cursor position in several common geo referencing modes You can choose to show or hide the status bar and
26. ers The Project pane gives you several ways to organize layers to your advantage You can create new groups of layers and you can drag layers around within a group or from one group to another Moving Layers Layers are displayed in the Map pane in a kind of stack whose order called the Z order precisely fol lows that of the Project pane Layers that are higher up in the list in the Project pane are displayed on top of other layers that share the same area The top layer obscures those beneath it except where 29 LizardT ech GeoViewer 5 User Manual there is transparency or nodata see Viewing and Setting Layer Transparency Values on page 31 You can move layers within a group or move a layer from one group to another To change the position of a layer in the Z order click on its name and drag it up or down in the list TIP To get the best map display put your vector layers above your image layers in the Project pane If you reverse them in the Z order your shapefile borders may be uncharitably rendered Grouping Layers An initial group is created when you add your first layer Creating new layer groups enables you to organize your imagery For example you may group layers according to years or regions By placing layers of the same year together in a group you can hide or show that group with a single click to examine changes in annual increments see Hiding and Show ing Layers on page 17 Likewise organizin
27. ewer update preferences from the Options menu The GeoViewer Update Preferences dialog appears 2 Clear the Remind me to check for updates checkbox The Remind me every x days field becomes unavailable grayed out 3 Click OK 43 Appendix A Technical Information Supported File Formats Input Formats The following table lists the file formats GeoViewer opens along with their file extensions File Format Name Extension s s f LizardTech MrSID including MG4 COI m Raw uncompressed BBB m m NOTE LAS and MG4 files must be stored on a local computer or network See also Adding a Layer to View on page 15 All of the supported input formats can take world files except LAS and MG4 TIP The rule for arriving at the proper world file extension for a given file format is that the first and third letters of the format s extension are taken and a w is appended after them Thus a world file for a MrSID sid file would have the extension sdw 45 LizardTech GeoViewer 5 User Manual Output Formats The following table lists the file formats in which GeoViewer exports images along with their file exten sions File Format Name Extension s See also Chapter 8 Exporting Maps and Layers on page 39 Viewing System Information The System Information pane includes details pertaining to your installation of GeoViewer including the full build version numbers and URLs for the application s inst
28. g Measurements To clear the measured points so you can perform a new measuring operation do one of the following e Click Clear measurements in the Measurement pane e Choose Clear measurements from the Tools menu Copying Measurement Data for Use Elsewhere To use the collected measurement data elsewhere click Copy data to clipboard then paste the data into another application Closing and Reopening the Measurement Pane You can close the Measurement pane by clicking the X in the upper right corner If you wish to see it again click the Measure icon again or right click the image and choose Measure from the context menu 36 Chapter 7 Measuring Distance Getting Out of Measurement Mode To get out of Measurement mode click any other tool icon Setting Measurement Units In order to report measured distance GeoViewer needs to know both the measurement unit in which your image was first georeferenced the source unit and what unit you want the results of your meas urements reported in the display unit The Display Unit If you have never changed the display unit the default display unit for a given image is the same as its source unit Once you have specified a display unit that unit will be the default display unit until you change it again For images with known source units you can choose any of the following display units meters kilometers feet miles pixels To specify a display unit 1 Click th
29. g by region groups enables you to quickly compare dif ferences across locations Your workflow may suggest other groupings such as by layer source job analyst etc To create a new group 1 Choose Add group from the File menu or from the Project context menu The Add Group dialog appears 2 Enter a name for your group and click OK NOTE The presence of a group does not in itself affect the Z order However moving one group above or below another does affect position in the Z order of all the layers in the repositioned groups Renaming a Group or Layer You may change the name of any group or layer To rename a group or layer 1 Right click the group or layer name in the Project pane and choose Rename from the context menu The Rename Group or Rename Layer dialog appears 2 Enter a new name for your group or layer and click OK Removing a Layer from a Project You can either hide a layer so that it is not displayed in the Map pane or remove it from the project If you are likely to want to view the layer again in the context of the current project consider hiding it instead of removing it for more information see Hiding and Showing Layers on page 17 30 Chapter 6 Working with Projects To remove a layer or layers from a project 1 If more than one layer is to be removed select the names of all layers to be removed on the Project pane 2 Right click the layer name or selection of names and choose Remove selected f
30. g layers Refreshing points 23 21 31 29 15 15 15 16 17 29 48 18 41 43 41 29 29 33 29 12 27 27 23 Removing a layer from a project Renaming a group or layer Reprojecting images Resolution of exported maps or views Restoring GeoViewer to its previous state Restoring original view Right click menus S Saving a project 29 Selecting and deselecting layers Selecting bands Setting georeferencing preferences Setting GeoViewer update preferences Setting measurement units Setting the coordinate reference system for a map Setting user interface preferences Showing and hiding axes Showing layers Source measurement units Status bar Supported formats System information System requirements T Taking measurements Tips and tricks Toolbar Tools menu Transparency U Uninstalling GeoViewer 30 30 27 39 23 12 33 24 24 41 43 37 27 41 22 17 37 12 45 46 35 47 10 31 Update reminders Updating GeoViewer User interface map of preferences V Version number Viewing and setting layer transparency values Viewing layer metadata Viewing system information Ww WGS84 World files Z Z order Zooming in and out Index 43 41 47 31 25 46 27 39 29 19 53
31. ge 1 to your project using basic navigational tools to maneuver around them and view their metadata Adding a Layer to View Images are treated as layers in GeoViewer so when you want to view an image you must add it to the project as a layer You may open layers including Shapefiles and LIDAR data from a local repos itory from Express Server catalogs or from WMS or JPIP servers For a list of supported input for mats see Supported File Formats on page 45 You may need to reconcile coordinate reference system CRS information among layers when add ing them to the project For more information see Reconciling Projections Among Layers on page 27 NOTE The first layer to be loaded determines the CRS for the map If you want to display your lay ers in a different CRS you must create a new map For more information see Chapter 5 Working with Coordinate Reference Systems on page 27 Opening a Local Layer To open a local layer do one of the following e Enter Ctrl O and browse folders for the desired file e Choose Add layer from the File menu then choose Local layer and browse folders for the desired file e Draga file from Windows Explorer and drop it into the Project pane e Right click in the Project pane to access the Project context menu then choose Add layer then choose Local layer and browse folders for the desired file NOTE Selecting large numbers of layers to add using the Windows Open dialog sometimes resul
32. her image for mats ExpressView Browser Plug in is quickly downloaded easily installed and free for individual use It s the most convenient way to view MrSID and JPEG 2000 imagery over networks For more information about ExpressView Browser Plug in visit http www lizardtech com download ExpressView Browser Plug in Fast and Easy Viewing of Large Images ExpressView Browser Plug in enables you to view navigate and print MrSID and JPEG 2000 imagery in Internet Explorer or Firefox Like GeoViewer ExpressView enables you to save a portion of an image in a number of other image formats ExpressView Browser Plug in is quickly down loaded easily installed and free for individual use It s the most convenient way to view MrSID and JPEG 2000 imagery over networks For more information about ExpressView Browser Plug in visit http ww w lizardtech com downloads viewers php GeoExpress The Industry s Best Image Manipulation and Compression Software With powerful tools for reprojecting color balancing and mosaicking GeoExpress software is the industry s choice for manipulating and compressing geospatial imagery to industry standard formats 48 Appendix B Product and Company Information You can configure Express Server and Spatial Express software directly from GeoExpress which makes it the ideal command center for your storage and distribution workflows For more information about GeoExpress visit www lizardtech com
33. ick Connect The Server Layers list at left becomes pop ulated An arrow next to an item indicates that it contains one or more secondary layers Click gt to select a layer or gt gt to select all immediate secondary layers Use the Up Dn and X buttons to arrange or delete selected layers The ordering of the layers determines which layer is displayed on top when the server mosaics them for delivery Click OK The layers you selected are opened as a single layer from the server and their names are combined as a single layer name in the Project pane Chapter 4 Viewing Maps and Layers Opening a Layer on a JPIP Server To open a JPIP layer 1 Choose Add layer from the File menu then choose JPIP layer Alternatively right click in the Project pane and choose Add layer JPIP layer The JPIP Layer Selector appears 2 Enteraserver URL port and source file name as shown below Note the location of the port number Add JPIP Layer Server URL http demo lizardtech com 9013 File name JPIP DC Cropped jp2 3 Click OK The layers you selected are opened and their names are added to the Project pane When you add a layer to GeoViewer s Project pane the view in the Map pane automatically updates to display that data For LIDAR data this means that the points are refreshed upon each added layer NOTE GeoViewer does not support georeferencing in JPIP layers Hiding and Showing Layers By default layers opened in GeoViewer ar
34. ing Layers rn e AN obe uve Val een Pasce A i 29 Removing a Layer from a Project sees 30 Viewing and Setting Layer Transparency Values cooccccccecenceenn 31 AE esses seems ses esee serere e 33 Chapter 7 Measuring Distance 2 02 00 35 Using the Measure TooL 2222222 0 s e IRR erre sels 35 Setting Measurement Units 2 0 00 c ee e e Re annann 37 Chapter 8 Exporting Maps andLayers 39 Chapter 9 Preferences 41 Setting Georeferencing Preferences eese 41 Setting User Interface Preferences sese eeee 41 Setting GeoViewer Update Preferences ee 43 Appendix A Technical Information 45 Supported File Formats 0 2222 c eee e ccc cnc ccceeeecceeeeseeees 45 Viewing System Information 222 cc cece cece cece ees e eR Reese 46 Appendix B Product and Company Information 47 Displaying Tips and Tricks 20 22 2022 cece cece cece cece n e RR Renee 47 Displaying the GeoViewer About BOX 000 0 XX 47 About LizardTech tit lt mg NG dale te et Aka al Madian ese 48 Other LizardTech Products 2 00000 cece eee cece cece cece eeeeeeeeeeeees 48 GeoViewer and Patents 2000000 c cece cece cece cece ee RR RR rrr e
35. mages opening Express Server images opening from local directory opening via WMS opening via WMS server projections Installing GeoViewer K Keyboard shortcuts 51 29 39 45 22 41 27 43 30 17 15 15 16 17 27 23 LizardTech GeoViewer 5 User Manual L Layer metadata Layers adding from local directory adding via Express Server adding via JPIP server adding via WMS grouping organizing projections rearranging removing from project renaming LiDAR 3D viewing coordinate reference systems supported formats LiDAR data exporting M Map Map pane Measurement pane Measurement units Measurements clearing copying measurement data taking Menu bar MG4 Moving layers up and down in the Project pane MrSID Generation 4 Multispectral multibanded layers 52 25 15 15 17 16 30 29 27 29 30 30 20 27 45 39 11 35 37 36 36 35 45 29 45 24 N Navigating using keyboard shortcuts Navigation in three dimensions Navigation rectangle Nodata O Opening an existing project Opening an image from local directory Via Express Server via WMS via WMS server Options menu Organizing layers Other LizardTech products Overview pane P Panning images Preferences georeferencing GeoViewer updates user interface Project creating new opening existing saving Project files Project pane Projections R Reconciling projections amon
36. me new terminology Map What you see in the large main window is called a map A map is the total of all raster and vector images and LiDAR data added together That large window is called the Map pane Even if all you re doing is viewing a mosaicked raster image with no vec tor or LiDAR data GeoViewer still considers you to be viewing a map Layer The images and other data that you add to the map are called layers Whether you want to import an image a single tile of a mosaic a LiDAR file or a vector overlay you import it as a layer Layers can be displayed or hidden NOTE When a project consists of a single layer that layer is identical to the map The GeoViewer user interface exclusively employs the map and layer terminology The GeoViewer help materials may use both layer and image depending on context Now off you go We hope that this little chat will have made it easier for you to get started using Geo Viewer Chapter 2 Installing or Updating GeoViewer GeoViewer uses an easy installation mechanism Simply go to LizardTech s downloads page and select your operating system to download and install the latest version of GeoViewer NOTE Administrative privileges are not required to install GeoViewer but they are required to install any prerequisite software such as Microsoft NET Framework To install or update GeoViewer 1 Point your browser to http www lizardtech com downloads viewers php 2 Click
37. n will be selected the next time you access this dialog but the fields will remain populated with minimum or maximum values until you change them Saving a Project You may save a project at any time You will be prompted to save any changes you wish to keep when you close GeoViewer Saved GeoViewer projects carry a gvp extension To save a project 1 Choose Save project or Save project as from the File menu If you choose Save project as the Save As dialog box appears 2 Specify a name and a folder and click Save A new GeoViewer project gvp file is created For information on project files made with GeoViewer 4 0 1 or earlier see Project Files Made with Earlier Versions of GeoViewer on page 29 33 Chapter 7 Measuring Distance In 2D mode GeoViewer enables you to measure the distance between two points or the total distance of several line segments drawn on a map with the Measuring tool When you use the Measuring tool the Measurement pane appears in the Map pane Besides showing you the distances among the points you measure the Measurement pane indicates the display unit the measurement unit your distances are to be reported in and the source unit the measurement unit the image was originally georeferenced in and allows you to set the display units as you desire To use the Measuring Tool or access the Measurement pane do one of the following e Click the Measure icon on the toolbar e Choose Me
38. nts but all of the points displayed after the refresh command are located within your current view which makes for greater density in the region you are inspecting TIP Refreshing points is more effective if you are viewing perpendicular to the earth or other foun dational surface in your data when you refresh If your view tilts upward toward a horizon then a broader region will be included and the points will be distributed evenly throughout it A good rule of thumb is to zoom in closely over your target while viewing perpendicular to the ground then refresh your points then orbit to explore the data Restoring Original View Clicking the Home button on the toolbar restores a view of the entire map at its best fit in the Map pane In 3D mode this corresponds to a top down view of the data Clicking the Home button also refreshes your points Customizing GeoViewer s Background Color GeoViewer uses black as the viewer s default background color but you can change this to any desired color To customize the background color Choose UI preferences from the Options menu 1 2 Select the Background color tab 3 Select the Use custom background color radio button then click Choose color The Select a Color dialog appears 23 LizardT ech GeoViewer 5 User Manual 4 Specify a color using the slider the number value fields or the hexadecimal notation field then click OK until all dialogs are closed Selecting and
39. or right you must click out of Smooth Zoom mode and into Pan mode using the Pan tool 3D Viewing Using the 3D viewing mode enables you to orbit pan and zoom your LiDAR layers in three dimen sions The 3D tab becomes available when you add a LiDAR file to the Project pane Supported LiDAR input formats are LAS and MrSID Generation 4 MG4 The illustration below shows GeoViewer with the 3D tab selected Notice that the Orbit Focal Point and Refresh Points buttons are available on the toolbar These options are also added to the Map con text menu When you first view a layer on the 3D tab your viewpoint is positioned at the top of your z axis and the Map pane shows only the region that was visible on the 2D tab Thus if you zoom in on the 2D tab before clicking the 3D tab only points for the region that was showing on the 2D tab are displayed on the 3D tab The UI Preference dialog enables you to customize several aspects of 3D viewing such as whether or not the focal point axes and the bounding box are shown and to select a different color gradient see 3D Viewing Preferences on page 42 NOTE Layers that have no z data will not be displayed in 3D mode 20 Chapter 4 Viewing Maps and Layers 9 GeoViewer untitled File Layer Navigation Tools Options Help iCAIOIIOASASA A HE Home Refresh Pan Zoom In Zoom Out Smooth Zoom Orbit Focal Point NAD83 UTM zone 12N Lat Long Native Navig
40. oud Usually as a result of earlier preprocessing workflows a typical case would be to have the claimed z range much larger than the actual data s z range MrSID Generation 4 files do not have this problem as the bounds encoded within the file are always tight to the actual data s bounding box This behavior can be manually overridden see 3D Viewing Preferences on page 42 22 Chapter 4 Viewing Maps and Layers NOTE Minimum and maximum z values that you set manually are stored in your project file Navigating Using Keyboard Shortcuts The following keyboard shortcuts make navigation in 3D mode a snap e While holding down the Ctrl key click and drag up or down to zoom smoothly out or in e While holding down the Shift key click and drag in any direction to rotate the view e While holding down both the Ctrl and Shift keys click and drag to define the region you wish to zoom to Refreshing Points The Map pane shows 500 000 points of data by default You can change this number on the 3D set tings tab of the UI Preferences dialog When you first open your data in the Map pane those points are distributed over the entire volume of the data When you zoom in among the data points shapes and contours may be harder to see and the data may appear thinner You can increase the density of points in your area of interest by clicking the Refresh Points button S When you refresh the points GeoViewer again displays 500 000 poi
41. oves a layer or layers from the Project pane Chapter 3 Getting Oriented in GeoViewer Item or Submenu Description Set layer transparency Enables you to specify which color should be transparent for a layer Vector settings Enables you to specify width and color for vector lines for a layer CO ET EI ETS zomon ET Orbit focal point 3D mode only Moves your viewpoint in an orbit around your focal point Disabled in 2D viewing Refresh points 3D mode only Freshly displays a configurable number of points that fall within the current view Disabled in 2D viewing Zoom to layer s Zooms to selected layer s Tools 2D mode only Sets cursor to Measure mode and displays the Measurement pane Clear measurements 2D mode only Removes measurement lines and clears all reported segment lengths View layer metadata Displays metadata about selected layers Export Export current view 2D mode only Creates a file of exactly what you see in the Map pane including vector over lays Export map 2D mode only Creates a file showing the region covered by all layers regardless of whether those layers are hidden or shown Georeferencing pref Enables you to choose warning options and specify how geo erences referencing information should be treated when layers are added to a map LizardTech GeoViewer 5 User Manual Item or Submenu Description UI preferences Enables you to set preferences for the GeoViewer
42. r the application opens an untitled project for the layers you wish to view Every layer you add automatically becomes part of the project This temporary project is either saved as a project file or discarded when you close GeoViewer at the end of your viewing session Saved GeoViewer projects carry a gvp extension Only one GeoViewer project can be open at a time Creating a New Project New GeoViewer projects are automatically created in two ways e When you run GeoViewer the application opens to an untitled project e When you choose Close project from the File menu your current project whether you save it or not is replaced by a new untitled project Opening an Existing Project To open an existing project 1 Select Load project from the File menu The Open dialog box appears 2 Browse directories for the desired gvp file and click Open Project Files Made with Earlier Versions of GeoViewer If a project file made with GeoViewer 4 0 1 or earlier is opened in GeoViewer 5 it will be translated into memory so that you can use it but it will not automatically be saved upon closing To replace the older version of the project file choose Save project from the File menu To save a new version of the project file and retain the original choose Save project as from the File menu In either case a new version 5 gvp file is created which can be opened used and saved normally thereafter Organizing Lay
43. res are covered in other chapters System Requirements The following system is recommended for installing and running GeoViewer e One of the following operating systems Microsoft Windows XP 32 bit Service Pack 3 Microsoft Windows XP 64 bit Service Pack 2 Microsoft Windows Windows Server 2003 Service Pack 2 Microsoft Windows Vista Service Pack 1 o Microsoft Windows 7 Microsoft NET Framework 4 0 included Microsoft DirectX 9 0c 1 GHz processor 2 gigabytes GB RAM o oO o O NOTE In order to use GeoViewer s 3D viewing tab your system must be running Microsoft DirectX 9 0c You must visit Microsoft s website http msdn microsoft com en us directx aa937788 aspx to download DirectX You can still use GeoViewer s 2D viewing tab without DirectX GeoViewer comes in both 32 bit and 64 bit versions Yes you may run the 32 bit version on a 64 bit system if you wish A Note about Terminology If you are familiar with GeoExpress and other LizardTech products designed specifically and exclu sively for work with raster images and mosaics you re probably used to calling things added to LizardTech GeoViewer 5 User Manual project lists images or mosaics or even tiles Because LizardTech GeoViewer is designed for viewing and exporting GIS layers that may include other kinds of data besides raster imagery such as vector and LIDAR data this vocabulary no longer covers all the possibilities GeoViewer therefore introduces so
44. rings areas outside the pane into view The navigation rectangle in the Overview pane see The Overview Pane on page 7 shows you what portion of the layer the Map pane is displaying Zooming In and Out There are many methods for zooming into and out of a layer or map Zoom in by defining an area with the Zoom In tool Zoom in or out by increments using the Zoom In or Zoom Out tool Zoom in or out by increments using the slider bar Zoom in or out using the scroll wheel Zoom to specific layer s using the Project context menu Zoom in or out using the Smooth Zoom tool Zoom out using the Home button For information specific to zooming in or out in 3D see Navigating in Three Dimensions on page 21 Using the Zoom In and Zoom Out Tools To define a zoom area with the Zoom In tool 1 Click the Zoom In icon on the toolbar alternatively choose Zoom In from the Map context menu The cursor changes to indicate that you are using the Zoom In tool 2 Click and drag with the cursor to draw a rectangle on the map The view refreshes and the area you defined is displayed to best fit in the Map pane To zoom in or out by increments using the Zoom In or Zoom Out tool 1 Click the Zoom In or Zoom Out icon on the toolbar alternatively choose Zoom In or Zoom Out from the Map context menu 2 Click on the map where you wish the zoomed in or zoomed out view to be centered Click again until you arrive at the desired zoom level The navigation r
45. rom the con text menu Alternatively choose Remove selected from the Layer menu To remove all the layers in a project choose Remove all from the Project context menu or from the Layer menu NOTE Removing all layers does not create a new project nor does it close the current one The CRS established for the map is still in effect even though you have removed all layers Viewing and Setting Layer Transparency Values GeoViewer enables you to specify which color of a raster layer will be transparent Setting the layer transparency or nodata values enables you to create mosaics of overlapping images You may set all bands in the layer to black white the image s native transparency values or any arbi trary set of values To view and set a layer s transparency values 1 Inthe Project pane right click the appropriate layer s name and choose Set layer trans parency The Set Transparency dialog appears as shown below By default the layer s native values are displayed and used Set Layer Transparency Layer SeattleAllTiles_20to1 sid Set all bands to minimum value 0 black O Set all bands to maximum value 255 white 9 Use native layer transparency Edit Override Band Native Layer Red 0 Green 0 Blue 0 31 LizardT ech GeoViewer 5 User Manual 32 If native values have previously been overridden the Edit Override radio button is selected and override fields appear to the right displaying the override
46. see 49 e AA AA AN 51 iv Chapter 1 Introduction Thank you for using LizardTech GeoViewer 5 We re confident that you will find GeoViewer to be everything you need to view and export maps employing high resolution images and image mosaics Whether you re viewing imagery on your computer s hard drive on a WMS or JPIP server orina LizardTech Express Server catalog GeoViewer makes rapid viewing of large images possible while maintaining maximum image quality GeoViewer now supports importing files of the MrSID Generation 4 MG4 format as layers MG4 support means you can specify any three bands of a multispectral file to view as the red green and blue bands or any single band to view as the grey band The Select bands dialog can be reached by right clicking a layer s name in the project pane see Selecting Bands on page 24 The purpose of this user manual is to give you quick information about how to use GeoViewer to view image vector and LiDAR data To access this documentation as WebHelp within the application select Help Topics from the Help menu If you have not yet installed GeoViewer or need to update the application see Chapter 2 Installing or Updating GeoViewer on page 3 For a quick visual overview of the user interface see Chapter 3 Getting Oriented in GeoViewer on page 7 The most common navigational tasks are covered in Chapter 4 Viewing Maps and Layers starting on page 15 Saving projects and other procedu
47. sid Y 10tet444137 sid Y 10tet444122 sid Y 10tet444107 sid Y 10tet459077 sid Y 10tet459062 sid V 10tet414092 sid et414182 sid 20 30 NAD83 UTM zone 10N Lat Long 47 072991 122 441593 Native 542395 29921 5213426 63096 When you hide a layer it disappears from the Map pane Each of the remaining layers is displayed cor rectly as to its position in relation to all the other layers whether the other layers are visible or not Panning There are two methods for panning a layer in two dimensions or 2D for information about panning in 3D see Navigating in Three Dimensions on page 21 e Quick panning using the Overview pane for bringing the region of the map of most interest to you quckly into the Map pane e Using the Pan tool for fine tuning the view To quick pan a layer click and drag in the Overview pane to move the navigation rectangle until it encompasses the region you wish to view TIP Quick panning is most useful after you have zoomed in a level or two In the original home view the navigation rectangle is not visible until you pan or zoom Similarly the navigation rectangle is not visible at views zoomed out beyond home view 18 Chapter 4 Viewing Maps and Layers To pan a layer using the Pan tool 1 Click the Pan icon on the toolbar alternatively choose Pan from the Navigation menu or from the Map context menu 2 Click and drag on the layer in the Map pane This b
48. sions at Full resolution depend on those of the source image 4 Verify the compression quality for JPEG or PNG using the slider in the JPEG Options or PNG Options panel For JPEG higher quality will result in greater visual detail PNG is a loss less format so a higher compression quality here simply takes more time to export and creates a slightly smaller file 5 Optional If you want a world file to be created select the Write world file checkbox 6 Entera path and file name alternatively click Browse to select an output file path choose a folder and file name and click Save 7T Click OK Your file is created in the folder you specified 39 Chapter 9 Preferences GeoViewer enables you to set your preferences for how layers georeferencing is handled for colors and other aspects of the user interface and for reminders to check for updates Setting Georeferencing Preferences The georeferncing preferences enable you to specify whether or not world files should be read how coordinate reference systems CRSs should be reconciled among layers and what warnings you would like to receive Read World Files If world files are present and the Read world files checkbox is selected information in metadata will be ignored in favor of the world file By default this checkbox is clear and world files are not read Coordinate Reference System Reconciliation You can specify one of the following as GeoViewer s default b
49. til you have checked for updates LizardT ech GeoViewer 5 User Manual Installed version 4 10 2821 Last update check 3 10 2010 10 43 52 AM Latest version 2 Click Check for updates If amore recent version of GeoViewer is available it is listed as the latest version and the button changes to say Download If not the button becomes unavail able 3 Click Download if you wish to update GeoViewer The new version is downloaded and installed as shown below Check for Updates Installed version 5 0 0 3003 Last update check 10 28 2010 4 18 54 PM Latest version 5 0 0 3055 35MB aaa Downloading Cancel download 4 Close and restart GeoViewer After you restart you will be running the new version of GeoViewer You can confirm this by again choosing Help gt Check for updates For information on setting automatic updates see Setting GeoViewer Update Preferences on page 43 Uninstalling GeoViewer To uninstall GeoViewer 1 Open your Control Panel and choose Add Remove Programs Programs and Features on Vista The Add Remove Programs dialog or equivalent Vista task pane appears 2 Choose an option and click OK Chapter 2 Installing or Updating GeoViewer Restore the application to its previous state leaves the application installed but removes the most recent update This option is only available if you have already installed a previous version Remove the application from
50. to pan a little zoom a little then orbit a little to explore the data than repeat the process panning again as necessary to place your focal point properly in relation to the data you wish to view more closely Focal Point Your focal point is identified by three short axis markings that form what looks like a comer They help you orient your viewpoint among the data You may choose not to display the axes see 3D Viewing Preferences on page 42 NOTE The x and y coordinates of your focal point are displayed on the status bar Color Gradient GeoViewer assigns a gradient color scheme to the point cloud based on the minimums and max imums of the z values of the LiDAR layers that make up the map These min and max z values of each LiDAR file are taken from the file itself and in most cases this works fine However there are two cases in which this will lead to a seemingly incorrect rendering such as the image appearing entirely as shades of blue 1 Ifthe points are not evenly distributed across the range from the map s minimum to maximum z values the gradient coloring will appear incorrect For example a one million point LiDAR file may contain 999 999 points with a z range of 100 to 200 and one point with a z value of 10000 due possibly to sensor error In this case all but one of the points will be classified at the lower end of the gradient 2 SomeLAS files are encoded with incorrect values for the bounding box of the point cl
51. ts in an error referencing bad or truncated file names If this happens select the files and drag them into the Project pane Opening an Express Server Layer To open an Express Server layer 1 Choose Add Layer from the File menu then choose Express Server layer Alternatively right click in the Project pane and choose Add layer 5 Express Server layer The Express Server URL dialog box appears Enter a URL and click Connect The Catalogs list at left becomes populated Select a catalog to see its contents in the Layers list at right Select a layer and click OK The layers you selected are opened and their names are added to the Project pane RON 15 LizardT ech GeoViewer 5 User Manual Opening a Layer on a WMS Server To open a WMS layer 1 16 Choose Add layer from the File menu then choose WMS layer Alternatively right click in the Project pane and choose Add layer WMS layer The WMS Browser appears as shown below WMS server URL http demo lizardtech com lizardtech iserv ows Server layers Chelan andre Portsmouth UK SRTM USA Idaho ESPG 4269 Florida chicago December 2004 Shaded Top November 2004 Shaded Top October 2004 Shaded Topos September 2004 Shaded Tor at WE Cea J T n GetMap Format image png GetCapabilities Selected layers MODIS Data 2002 Seattle Chelan Select EPSG Map s is 4326 EPSG 4326 Enter a WMS server URL and cl
52. ue geographic x y origin x and y res olution and well known text string WKT o IMAGE tags all IMAGE tags o GeoTIFF tags all GEOTIFF CHAR and GEOTIFF NUM tags o Alltags combined list of GeoTIFF and IMAGE tags LAS properties ProjectID and generating software Chapter 5 Working with Coordinate Reference Systems Chapter 5 Working with Coordinate Reference Sys tems In order to display georeferenced images in proper relation to one another GeoViewer must put all lay ers into the same projection or coordinate reference system CRS Changing an image s CRS is called reprojecting Setting the CRS for a Map When you add the first layer to your map GeoViewer asks whether you want the layer to be added in its native CRS or be reprojected to WGS84 This first decision determines the CRS for the map You must create a new map if you want to display your layers in a different CRS Reprojecting to WGS84 has the following advantages e WGS84 is the industry default e WGS84 corresponds to latitude longitude lat lon e WGS84 is easily converted to and from other projection systems e GPS uses WGS84 If the first layer has no CRS it is added to the map in pixel space that is having a nongeographic CRS corresponding to image coordinates TIP You can set your preferences so that GeoViewer always reprojects an image to WGS84 or always uses the native CRS see Setting Georeferencing Preferences on page 41 This way
53. user inter face AutoUpdate preferences Enables you to specify whether and how often you want Geo Viewer to check automatically for updated versions Help topics Opens GeoViewer WebHelp Tips and tricks Displays the Tips and Tricks dialog GeoViewer support Links to http www lizardtech com support geoviewer Check for updates Enables you to check for and download the latest version of GeoViewer System information Provides details pertaining to your installation of GeoViewer About GeoViewer Displays version number and copyright information The Toolbar The GeoViewer toolbar is located above the Map pane and offers tool buttons identified by the fol lowing icons Toolbar icons Home Restores the original view centered and scaled for best fit see Restoring Original View on page 23 In 3D viewing repositions your viewpoint to its original position zoomed out along your z axis Pan Enables you to move the view in any direction within the layer see Pan ning on page 18 In 3D viewing moves the data from side to side or up and down Zoom In The Zoom In tool can be used to click in to a selected area by increments or to define a precise region of the image to zoom in on see Using the Zoom In and Zoom Out Tools on page 19 Zoom Out The Zoom Out tool is used to incrementally view a greater portion of the image than the current view and incidentally to change the view s cen terpoint see Using the Zoom
54. values previously set as shown Set Layer Transparency Layer SeattleAllTiles_20t01 sid Set all bands to minimum value O black Set all bands to maximum value 255 white Use native layer transparency O Edit Override Band Native Layer Red 0 Green 0 Blue Click the radio button closest to your desired settings e Set all bands to minimum value Specifies that the layer s transparency color be black all bands have values of 0 If they are not already visible Override fields appear e Set all bands to maximum value Specifies that the layer s transparency color be white all bands have the maximum transparency value for an 8 bit RGB image this would be 255 If they are not already visible Override fields appear e Use native layer transparency Specifies that the layer s native values be used e Edit Override Enables you to specify values for each band If you select Edit Override the Override appear as shown below If native values have pre viously been overridden the override fields display the values previously set Enter desired values Chapter 6 Working with Projects Set Layer Transparency Layer 10tet639302 sid Set all bands to minimum value 0 black Set all bands to maximum value 255 white Use native layer transparency O Edit Override Band Native Layer Red 0 Green 0 Blue 0 4 Click OK NOTE If you selected Set all minimum or Set all maximum the Edit Override butto
55. which modes your cursor posi tion is reported in Latitude Longitude and Native are selected by default Latitude Longitude can be expressed decimally or by DMS degrees minutes seconds Decimal is the default Viewer Background Preferences When you view your map at a level such that it does not completely fill the Map pane the viewer back ground is visible around the region occupied by your map By default GeoViewer uses black You may choose a custom color for the background if you wish Line Weight Line Color and Layer Names You may select the width and color of most lines in the user interface such as vectors meas urements and layer boundaries in the Map pane and the navigation rectangle in the Overview pane You may also tum layer boundaries on or off and enable the layer name tool tip which displays a lay er s name when you hover over it in the Map pane NOTE Vector settings can also be specified for a particular layer on the Layer menu or the Project context menu see Context Menus on page 12 Tips and Tricks You may disable the Tips and Tricks dialog so that it is not displayed when you run GeoViewer You can always access Tips and Tricks from the Help menu or by clicking the GeoViewer icon e on the toolbar 3D Viewing Preferences Several aspects of viewing on the 3D tab can be changed You can enter a value by which to exag gerate the z axis which will bring features into greater relief The number of points

GeoViewer 5.5 User Manual

Contents

Download Pdf Manuals

Related Search

Related Contents