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Version 2.2 User manual

1. aan 39 7 1 Virtual Surveyor Tools Interface ennennannnnnnnnnn 39 7 2 Working with Groups and LAayErS senennnnnnannnn 40 L s Caye let PTT 40 LAGE d AYEN usus vaccae ac EE X aca at whe ee X doa Rt cd UR A ica 42 1 2 ILIGAN a RA AG KANO ARA PAG PEENE AA DLE DER Ie 42 1 2 4Afenaliie a IVON TP es dros ER RD AE ERA RR DR DE BE ERA SR ER ER RS 43 FECI le dIE se EO DS HE de te WEE ARE f Rema ee eee 43 7 2 6Layer elevation offset SEE ss SE EE Ee ss ee 43 7 8 MON MAUON DON naa KA LAND He RD EE RR ee dios Ee EE Ee A A p f 44 7 4 Drawing points polylines and polygons lsl l e 45 PAADIAWING DONS 445220 9415 99 2454 eons ETE EE VS rr 45 7 4 2 Drawing polylines avwan dik nom a Rem E BAD AAR OR EE ed sm ee er 46 7 4 3 Drawing polygons x 24 22 2 x pe ed e ee ae a E DANG eee eee es NANA 47 7 5 Edit points polylines and polygons kk kk wk non non nn n an es 47 7 5 1 Shifting points polylines or polygons ssseeossoun 48 7 5 2 Editing polyline or polygon vertices seoesensoo 48 1 6 Create a point grid w w sik ha sk xn KG WA PORRO OR RC RAE CR 49 7 6 1 Activate Create Point Grid DUttON eesoeousoon 49 Pow Greate PONE Gids PPP RNEER OR KER HARD AE 49 FO Ed BE ss EE ER PAP 50 d i Annotate PONS au usce or crore RA BA n ORA d m c 51 7 1 Annotate with elevation 2i 20608 BAKET KAG xem aie ER di dot os ER 51
2. surveyor Version 2 2 User manual Information contained in this document is subject to change without notice and does not represent a commitment on behalf of GeolD No part of this document may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying without the written permission of GeolD bvba Interleuvenlaan 62 B 3001 Leuven Belgium Copyright 2014 GeolD bvba All rights reserved The Virtual Surveyor logo is a trademark of GeolD bvba Skyline TerraExplorer TerraExplorer Plus TerraExplorer Pro are trademarks of Skyline Software Systems Inc Trademark names are used editorially to the benefit of the trademark owner with no intent to infringe on the trademark Technical support info GeolD eu Contact GeolD on the Internet at www GeolD eu Table of contents 1 INTRODUCTION 5eeseeceseketex 3px RA HR RE nm ERE TERR 6 1 1 Introduction to Virtual SUFVEYON Lel L ss kk w kk kon w n kon n non non n mon konn 6 1 2 Virtual Surveyor componentS 000 eee non kow non non n non n n on non ee 7 1 2 1 TerraExplorer Plus with Virtual Surveyor tab 7 1 2 2 TerrainCreator oie SES poke ee eee eet an enp e of BA AA oe eya 7 1 2 5 Virtual Surveyor TOOIS lt 4 4 252404 even ee dy or dona chee hated eee 7 1 3 Software Version 0 ce non w n n n non kon n on na n non a n n non n non n 7 14 Product NIGHNOM Ss s 24 iss a pk oo a apt a IER NG NG
3. In order to create a location go to the Home tab in the ribbon and click Project Tree By clicking the Create Location button your current position and orientation in au tomatically converted to a new location which will appear in the Project Tree with a default name Right click the Location in to Project Tree and select Rename to give it an appropriate name B 2 2j Copy dp ut in Project Paste Trees w IX Delete pir d La Create Location Create Location Create a new Project Tree Location based on the observed point on the terrain or object at the center of the screen to allow easy navigation to the defined location later Figure 31 Create location 5 3 2 Navigate with objects When you draw objects with Virtual Surveyor Tools your object will also appear in the Project Tree and you can navigate to each individuale object by double clicking on it Project Tree n x m IU Top of Bank a CJ Survey points EE Point 2013517 39852 Point 2013517 39853 Point 2013517 39854 Point 2013517 39854 Point 2013517 39856 Point 2013517 39856 Point 2013517 39857 Point 2013517 39858 Point 2013517 39859 Point 2013517 39869 Point 2013517 39870 Point 2013517 39870 amp V CJ VSLabels CJ Profiles V Polyline 2013517 40020 9 Home Figure 32 Virtual Surveyor Tools objects in the project tree 6 Working with project files 6 1 Saving project files When you have
4. Shapefile shp hd Figure 96 Adding a feature layer Supported feature file formats You can also add other file formats but the application works best with the native terrain format mpt If you don t have your data available in the terrain format you should first create a new terrain See the Using TerrainCreator section on how to do this The following feature file formats are supported They include common GIS CAD and ASCII file formats e Shapefile shp e GDAL DXF dxf e Microstation dgn e Geodatabase mdb e Maplnfo tab mif mid e Microsoft Access mdb e Microsoft Excell xls xlsx e ASCII txt csv e Google Earth kml kmz 9 Terrain Analysis 9 1 Terrain analysis Virtual Surveyor contains a number of built in terrain analysis tools relevant for ana lyzing terrain and topography They can be found under the Virtual Surveyor tab figure 97 Virtual Surveyor allows to e Measure distances and slope gradients e Create slope color maps e Create slope direction maps e Create contour line maps e Create profiles DES Home Analysis Navigation View Objects Tools Virtual Surveyor 9 G 55 7 hi H a P E TerrainCreator Image Elevation Feature Select Select Horizontal Vertical Aerial Virtual Terrain Contour Slope Slope Layer Layer Layer Area Surveyor Tools Profile lines colors directions Figure 97 The Virtual Surveyor tab 9 2 Measu
5. 8 Click OK 9 Save the project and close Virtual Surveyor 10 Open the project again to make sure everything works properly 4 9 About TerrainCreator If you press the About button you open a new window that contains general infor mation about your version of TerrainCreator figure 27 This information includes the version number and the license status of your system If you have a full license you can see that you have a licensed version If you are using the trial version you can see the number of days that are left before the trial period ends The bottom of the popup window shows the license agreement for TerrainCreator TerrainCreator GeoID 2014 Version 1 2 1 16663 Licensed TerrainCreator version License agreement Software License Agreement END USER LICENSE AGREEMENT FOR TERRAINCREATOR IMPORTANT PLEASE READ THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT CAREFULLY BEFORE STARTING WITH THE INSTALLATION OF THE SOFTWARE This End User License Agreement EULA is a legal agreement between you either an individual or a single entity and GeolD BVBA for i the software product s identified above which may include associated software components content media and online or electronic documentation SOFTWARE PRODUCT By accepting GeolD s offer on or by installing copying or otherwise using the SOFTWARE PRODUCT you agree to be bound by the terms of this EULA This EULA supersedes any prior proposal re
6. During installation the NET Framework 4 0 or the TerraExplorer Plus visualization engine will be installed if not present on your system These installations may take a while so be patient When the installation finishes you will see the following window In order to start working you should do some license actions Virtual Surveyor has been successfully installed Click Finish to complete the installation Virtual Surveyor Figure 6 Installation ended successfully 2 2 License types Virtual Surveyor can be run in full mode or trial mode In full mode the software works for an unlimited time In trial mode the use of the software is limited to a certain time period 2 2 1 Full license A full license of Virtual Surveyor requires two USB authorization keys and one license file e Virtual Surveyor Tools and TerrainCreator modules require one USB authori zation key e TerraExplorer visualization engine requires one USB authorization key and one license file 2 2 2 Trial license A trial license of Virtual Surveyor requires one software license file e Virtual Surveyor Tools and TerrainCreator modules work for a 30 day period after installation e TerraExplorer visualization engine requires one software license file that is cre ated with a MachinelD This MachinelD is a unique code for your computer and allows to run the trial license on that specific computer For instructions on how to obtain a trial license visit Geo
7. you can specify a number of extra export options These options will be applied to both dxf and shapefile export e Densify this option only applies to layers containing polylines and polygons You can choose between No Linear and Terrain Densifying the polylines and polygons means you add extra vertices between the nodes you already digitized If you choose to do this you have the option to do this i on a linear basis or ii following the terrain Applying a linear densification means that the extra vertices will be placed on the 3D line between the already existing nodes A terrain densification implies that the extra vertices will be projected on the terrain surface A graphical representation of the difference between the two densification options is shown in Figure 72 e Interval this option specifies the interval between the points that are created in the densification It only applies if you have chosen Linear or Terrain as densification option When you do not provide any densification interval Vir tual Surveyor Tools will use a default value This value is automatically derived from the pixel size of the terrain model in the terrain file It is automatically calculated as five times the resolution of the terrain file e Smooth when you have chosen to do a terrain densification you can option ally perform a smoothing operation on the elevation of the densified points If you do so a smoothing algor
8. 43 Popup window to enter the new name of the selected layer 7 2 5 Style a layer A style definition can be applied to all features in a layer by clicking the paint brush button fe When you click this button the current style definition will be applied This style definition can be controlled through the Settings button figure 44 Refer to the section on styling on how to control the point polyline and polygon styling options Settings Figure 44 Settings button 7 2 6 Layer elevation offset An offset can be applied to all features in a layer by clicking the elevation offset button a When you click this button a popup will appear which allows you to set the offset dis tance This can be either a positive or negative value When entering a negative value your object might disappear under the terrain Set offset value Figure Popup window to specify a layer s offset Each offset is determined relative to the terrain and as such doesn t take into account any previous offsets Also note that the offset is preserved throughout the entire pro ject including the export a This is a usefull function to compensate for surface objects like snow grass or crops These are all areas where no real ground points are present but which can be assumed to have a more or less constant thickness Consequently they follow the terrain and by using the offset functionality one can model the underlying terrain more or less acc
9. 7 1 2 Annotate with label 2323 d ahha ER PLAKA Rh Rcge ACA ESOS a RET dic 51 7 8 Volume operations and terrain modifications 51 7 8 1 Calculate Volume ss 242 x ERROR ER aid kek m d ie AE SR EER W ARS 52 7 8 2 Calculate volume difference ss SS se Ses ee se see 53 18 3 Modify terrain ss ante ai 666542508 rni iban AR RS AA W GANA 55 Co EXP N eanna ank EER AE a ai ea RA WEEG dd abe d OR dca 57 dadi EDON O OK gens ESRA aa hea ba oes SR ae OAR HOER DR 58 7 9 2 Export to shapefile 1 aure am kil ee wena ee ee HP ee a 59 Pie DON OP ei nad atas oe eh acorn ata eh OE EE a N 60 NO SCUNGSs PT aN EE OE a AP os 62 7 10 1 General SETINGS arre dox aks ae ee wae eS REX ee wes EN ek AA 63 7 10 2 Point and label settings sis oe on BARS ate vaio Bod Ries os NG 65 7 10 30 Pollie SEN MAS c2c2c22eeehe et egesebasiheeteseeebari ene 67 104 PO NO ON sel NO eso rapiat dean e ESE E DR ED MES OE DIE DE 68 7 11 About Virtual Surveyor ese L nn kk L kn a n w n n n n nn kon n non n n non non n no 72 ADD ADDITIONAL RASTER amp VECTOR LAYERS 73 8 1 Add additional image layers sel sek nw n n nw non n nonw n nonw nna 73 8 2 Add additional elevation layers se 00 cc w n w n n nw non n onon n n n nn nna 74 8 3 Add additional feature layers e re a non nn non n onon n n n nn nna 75 TERRAIN ANALYSIS e ee ten ne non na nn n nannan nn 77 91 emai MAN SIS
10. Line Color Line Opacity 99 Fill Color rnm Figure 52 Properties windows for point a polyline b and polygon c features 7 5 1 Shifting points polylines or polygons Click the shift button to move a point polyline or polygon feature Subsequently hover your mouse over a feature in the 3D window and move the feature to the required location While moving your point polyline or polygon vertices will continue to follow the terrain 7 5 2 Editing polyline or polygon vertices Click the edit vertex button in order to move a vertex of a polyline or polygon fea ture The feature will change into the editing mode and the vertices will appear as dots Subsequently hover your mouse over a vertex in the 3D window and mowve it to the required location While moving your vertex will continue to follow the terrain 7 6 Create a point grid A grid of points can automatically be created in Virtual Surveyor Drawing Figure 53 The Drawing buttons group with the Create Point Grid button disabled 7 6 1 Activate Create Point Grid button In order to activate the Create Point Grid button a polygon feature should first be selected Drawing Figure 54 The Drawing buttons group with the Create Point Grid button enabled 7 6 2 Create Point Grid When you click the Create Point Grid button an additional dialog appears figure 55 This dialog will allow you to e Choose the grid type e Set the sp
11. The polygon outline thickness control offer a preselection of four thicknesses Fine Figure 89 Color picker 7 11 About Virtual Surveyor If you press the About button you open a new window that contains general in formation about your version of Virtual Surveyor Tools figure 90 This information includes the version number and the license status of your system If you have a full license you can see that you have a licensed version If you are using the trial ver sion you can see the number of days that are left before the trial period ends The bottom of the popup window shows the license agreement for the Virtual Surveyor Tools Virtual Surveyor Tools Copyright GeoID 2014 Version 22 0 15892 Licensed Virtual Surveyor Tools version License agreement Software License Agreement END USER LICENSE AGREEMENT FOR VIRTUAL SURVEYOR TOOLS IMPORTANT PLEASE READ THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT CAREFULLY BEFORE STARTING WITH THE INSTALLATION OF THE SOFTWARE This End User License Agreement EULA is a legal agreement between you either an individual or a single entity and GeolD BVBA for i the software product s identified above which may include associated software components content media and online or electronic documentation SOFTWARE PRODUCT By accepting GeolD s offer on or by installing copying or otherwise using the SOFTWARE PRODUCT you agree to be bound by the terms of this EUL
12. Virtual Surveyor A7 Terrain Creator iz Uninstall Virtual Surveyor Virtual Surveyor Help Virtual Surveyor License Manager Virtual Surveyor bwi m Figure 13 Virtual Surveyor section of the Windows Start Menu When you have chosen to create a Desktop shortcut or a Quick Launch icon during the installation process you will also be able to use these to start the application When Virtual Surveyor is started you will see the following screen 7 virtual Figure 14 Virtual Surveyor start screen The Virtual Surveyor start screen allows you to open an existing Virtual Surveyor project fly or terrain files mpt and gives you access to the Virtual Surveyor tab The Virtual Surveyor tab figure 15 contains buttons to start the TerrainCreator and Virtual Surveyor Tools modules It also contains a series of buttons related to the most common functionalities used by a virtual surveyor addition of image eleva tion and vector layers select controls measurement controls and terrain analysis functions View Objects Tools Virtual Surveyor o i Terrain Surveyor Tools Profile urvevina A Bs Contour Slope Slope lines colors directions Prai Figure 15 Virtual Surveyor tab TerrainCreator and Virtual Surveyor Tools modules can be started without a project being loaded All other functionalities are disabled on startup but will become active as soon as a project is created or loaded 4 Create
13. a terrain 4 1 Using TerrainCreator The following steps present a logical order in order to create a terrain properly e Define the output project file e Define the image input and verify its projection information e Define the elevation input and verify its projection information e Adjust the elevation ignore and background values e Start the conversion by clicing Create terrain e Inspect the terrain Output project file fly Input image information File location G UAV LummenT urbine lmagery v20120525 Ortho RGB Tiles tif ortho LummenTurbine 2012 1 4 tif ortho LummenTurbine 2012 1 5 tif ortho LummenTurbine 2012 1 6 tif ortho LummenTurbine 2012 1 7 tif ortho LummenTurbine 2012 2 3 tif Projection system WGS 84 UTM zone 32N 32632 Input elevation information File location GAUAVILummenTurbine Altimetrylv20120525 Grid Tilesitif dem LummenTurbine 2012 1 A tif dem LummenTurbine 2012 1 5 tif dem LummenTurbine 2012 1 6 tif dem LummenTurbine 2012 1 7 tif dem LummenTurbine 2012 2 3 tif Ignore value 27 99999 Background value Projection system WGS 84 UTM zone 32N 32632 Figure 16 TerrainCreator interface 4 2 Define output location The first step is to select the location of the Virtual Surveyor output project file This file carries the fly extension and contains references to the resulting terrain files mpt as well as a home location to facilitate navigation through the terrain Clic
14. ki va fiel e l asa a EER e AA a eee eae 77 9 2 Measure distances ui is Ene rex RR ned dee een eee gna ee es 77 9 3 Create slope color map 0 ce ee 80 9 4 Create slope direction map 2 0 ee 81 9 5 Create contour MAD sss 6584600 REOR ede odds es peewee degen 82 9 6 Create terrain profile 0 ce es 83 1 Introduction 1 1 Introduction to Virtual Surveyor Welcome to Virtual Surveyor a powerful solution that enables you to perform common land surveying tasks with datasets obtained from Unmanned Aerial Systems UAS or drones In contrast to conventional surveying drone based photogrammetric surveys do not di rectly produce vectorized threedimensional features Photogrammetric surveys create an abundance of data in a raster format from which meaningfull information still has to be extracted Virtual Surveyor provides this functionality by transferring the survey process into a virtual environment built with orthophotos and elevation models obtained from drones Virtual surveyor presents the surveyor with an extremely realistic picture Figure 1 of the terrain he would conventionally have to walk over in his effort to capture features Ten Figure 1 Virtual environment of a quarry Virtual Surveyor is used to e Rapidly visualize each part of your survey area in three dimensions e Create CAD surveys as you can search for specific points and breaklines that describe topopgraphy best e Execute volume a
15. nn annan nan 23 4 4 Setting the correct projection SYSteM eee e nonw on n n onn nn nna 23 4 4 1 Selection 2 0 eee ee nen nna nna nana n nannan 23 da PINO a rr 24 4 5 Requirements for input files ss EE EE EE EE ER EE Re Re ee 24 4 6 Adjust NoData and background valueS sies e sk w w wonn aan 25 4 6 1Handling of NoData values sanaaa SS se ss ss Ses es ke se ee 25 4 6 2 Specify a background value 0 00 ES ss ss eee 25 af Greate 16MIN uud mama EED RE Rod ieee MA 4 a GRE E ER wo d ad 26 4 8 Making a project portable sa wonn non wow non n n non n nonw on nan 27 4 9 About TerrainCreator t tt nna w n won w n non won n n n non non non non 31 NAVIGATION THROUGH THE TERRAIN ask ee ee 32 5 1 Navigating through the terraiN ese na non na nn n non an n nn nna 32 5 2 Changeminimam altitude 2a ai aa o Cm o NN ER EWE ae s 33 5 3 Navigating the project tree 2 1 ce es 34 5 3 1 Navigate with JOGSLOELS us aas DOE EER RRE bee dee hae hee SR EE 34 5 9 2 Navigate with objects titan ore ce kit di oe eee et ewe RR eee ae ee 35 WORKING WITH PROJECT FILES esee 36 6 1 Saving project TIIGS via EMMA c ce RR XE E b e c eee RE id c i 36 6 2 Open project fileS aua kate eerte ruth KAT HANE PR ER ne RA EUER es EER n NG 37 6 3 Recreate project with terrain files s sosnennnannnnann 38 VIRTUAL SURVEYOR TOOLS
16. terrain Ctrl N Create a new document Figure 35 Create a new project and select the terrain database In a second step you should add your image terrain as an image layer In the Virtual Surveyor ribbon tab go to Image Layer Browse to you image terrain Imagery li mpt and add the layer to the project You can now save your Virtual Surveyor project 3 7 vi Select Information ST Adda new image layer to the project Figure 36 Add an Image layer Virtual Surveyor Tools 7 1 Virtual Surveyor Tools Interface Figure 37 presents an overview of the Virtual Surveyor Tools interface The buttons in the layers pane allow you to work with layers The buttons in the drawing pane allow you to create points polylines and polygons and point grids The volume operations pane buttons allow you to calculate volumes volume differ ences between elevation layers and to modify the terrain The annotation buttons allow you to label a point with its elevation value or name label The export button will export the current project to a CAD or GIS file The general pane allows you to change the Virtual Surveyor Tools settings The Information box at the bottom shows information about the selected objects Version and licensing information and a link to this help file are available at the top of the Virtual Surveyor Tools interface Layers ma EEF Drawing ap lt gt ri ka Polyline Polygon Poit
17. 0 M 4 n li File name Files of type Mip Terain mpt Figure 94 Adding a second terrain elevation layer Oo Image and elevation terrain files can be distinguished through the ei and ii postfix Other image file formats You can also add other file formats but the application works best with the native terrain format mpt If you don t have your data available in the terrain format you should first create a new terrain See the Using TerrainCreator section on how to do this 8 3 Add additional feature layers Additional feature layers can be added through the add Feature layer option under the Virtual Surveyor tab figure 95 oru ce mtu e Home Analysis Navigation View Objects Tools Virtual Surveyor S 5 amp ei AE ES Mi TerrainCreator Image Elevation Select Select Horizontal Vertical Aerial Virtual Terrain Contour Slope Slope Layer Layer Area Surveyor Tools Profile lines colors directions Figure 95 The add Feature Layer button in the Virtual Surveyor tab When the button is clicked the following dialog figure 96 opens Browse to the feature format of your layer and click open to add the layer This layer will also be shown in the project tree and you will be able to turn it on or off From File Look in MyVirtualSurvey GE EE Name Date modified Ty VirtualSurvey sh 19 09 2013 11 44 D 4 II File name MyVirtualSurvey ship Files of type
18. 19 www GeolD eu info GeolD eu
19. A This EULA supersedes any prior proposal representation or understanding between the parties in relation to the SOFTWARE PRODUCT If van AA nat anraa with tha tarme af thic FINA da nat arrant lirancarc far an inctall ar nea the Figure 90 The Virtual Surveyor About window To close the About window press OK o Add additional raster amp vector layers Virtual Surveyor offers the possibility to add additional raster and vector layers on top of your base terrain You can add additional e mage layers e Elevation layers e Features layers All additional layers are added to your project and you can turn them on or off through the project tree 8 1 Add additional image layers An extra terrain layer can be added through the add Elevation layer option under the Virtual Surveyor tab figure 91 DS cle at Navigation Vi Objects Tools Home Analysis View Virtual Surveyor e X NET Ho AA M AE 32 TerrainCreator Elevation Feature Select Select Horizontal Vertical Aerial Virtual Terrain Contour Slope Slope Layer Layer A aii i Tools Profile lines colors directions 2 Add Layer Figure 91 The add Imagery Layer button in the Virtual vmm tab When the button is clicked the following dialog figure 92 opens Browse to the ter rain format mpt and add an additional elevation layer This layer will also be shown in the project tree and you will be ab
20. All files of a tiling scheme need to be in the same folder 4 Currently the following input formats are supported tif jpg j2k and img ERDAS Imagine 5 TerrainCreator will assume that files consisting of one or more 8 bit bands are imagery This includes color and grayscale images For images with more than four bands e g multispectral images only the first three bands are used 6 Files that are 16 32 or 64 bit integer or floating point are assumed to be elevation files Elevation is assumed to be expressed in meters 4 6 Adjust NoData and background values Special attention should be given to NoData and background values in order to cre ate a terrain properly Ignore value 27 99999 Background value 25 Suggest Figure 20 Interface to control the NoData and Background values 4 6 1 Handling of NoData values Many elevation rasters do not have a known value for each pixel For pixels with unknown elevation a so called NoData value is used This is often a very low value that falls outside the range of the true elevation values Typical values are 32767 or 99999 Some photogrammetry packages provide this value in the metadata of the elevation rasters and in this case TerrainCreator will be able to retrieve it automatically Many software packages and services however do not provide a correct NoData value or provide no NoData at all In this case TerrainCreator will automatically ignore all values smaller
21. Information about the polygon s two dimensional area and perimeter is listed in the Information box after a polygon is drawn figure 50 Information box Area 2D 78206 0 m Perimeter 2D 1061 7 m x a Figure 50 Basic polygon information in the information box Additional information about the information box can be found in the information box section 7 5 Edit points polylines and polygons To modify the items you created click the Select button in the Virtual Surveyor tab figure 51 Virtual Surveyor Tools will exit the drawing mode and enter the selection mode WT s WT Analysis Navigation View Objects Tools Virtual Surveyor Bles EED AM ko Select Horizontal Vertical Aerial Virtual Terrain Contour Slope S Surveyor Tools Profile lines colors directions LTT iN Image Elevation Feature Layer Lay Layer Figure 51 Select button in the Virtual Surveyor tab When you select an object the object properties window appears which allows you to modify the object s geometry The properties window will appear different depending on the object type Image Label Properties Name Point 0 4 Name Palyine 20140124 Activation Action Fly To Activation Action Fly To Line to Ground None Line Color MM ooo Line Length D C Line Opacity 99 Line Color att Fill Color B on Polygon Properties z S IE EA Name Polygon 20140124 Activation Action Fly To
22. OE Da aO pike ee DA ptt d 7 1 5 What s new in Virtual Surveyor L n kk n nn kn n n kon n non n non non eee 8 1 5 1 New in version 2 2 n nn nn n nn n n nn n nn nn n nn n n n nn nn 8 Li New in version 2 1 kos o e ac AA a ae Oe a l a Gat ae EE an 8 1 6 Software and hardware requirements u oensenson 9 1 6 1 Software requirements SERE dme datis xke WERKE SE HD Ems 9 1 6 2 Hardware requirements llle 9 1 7 Eonlact IDTOFTdllOE Xa BR db ow dee ee Se wk See d 10 2 INSTALLATION AND LICENSING 0200000 11 2 1 Installing Virtual Surveyor l ll Lk lk knn kk w kn n es 11 2 2 License types a ati sa sd apt HR uin al eus de Uri ee e l qs NG n a EG ad l 12 a WNC CINS PORK A id Bb Oa Bi 12 Ma EN ei TL 13 2 3 License ACHYA NON ox t ia gib s See pa a aaa oes a 13 2 4 License update ce ss exa gk or x a a NE X eee ee eee Ca a 16 2 5 Uninstalling Virtual Surveyor Lel kk kk kon w non n w non non kon onon non n non 17 3 STARTING VIRTUAL SURVEYOR 00 000 cece eee 19 3 1 Starting Virtual SUMCYON sai ia tu ce cea KAG OR RC MIE AR e a Ne ews 19 a CREATEA TERRAIN sc sees tees koi aa e D EROR ai NG 21 4 1 Using TerrainCreatOFf t tt tn a w won n won non won on won non non nonw non 21 4 2 Define output location se tra wonn won non n non n na non n non non 22 4 3 Define the image and elevation input eee nen
23. Windows Vista Windows 7 and Windows 8 Administrator rights are required to install the software Running the software works with normal user permissions Virtual Surveyor requires e TerraExplorer Plus or Pro visulization engine version 6 5 or 6 5 1 e Microsoft NET Framework version 4 0 An automated detection and installation of these packages is implemented when installing Virtual Surveyor 1 6 2 Hardware requirements Virtual Surveyor software is a 32 bit application and will run on either 32 and 64 bit Systems Virtual Surveyor requires e RAM A minimum of 1 GB of RAM is needed but 4 GB of RAM is recommended e Video Card A minimum of 256 MB video memory is needed but 1 GB or more is recommended 1 7 Contact information Virtual Surveyor is developed and maintained by GeolD bvba Contact us to e Get support and training e Suggest improvements new features and capabilities e Report problems You can contact GeolD at Interleuvenlaan 62 B 3001 Leuven Belgium Tel 32 16 394 719 Fax 32 16 394 701 Email info GeolD eu Web www GeolD eu 2 Installation and licensing 2 1 Installing Virtual Surveyor To install Virtual Surveyor locate the installer file which is called VirtualSurveyor_ installer exe on your installation CD and double click to open it An installation wizard is launched Depending on your system you may first need to confirm a security message First you will see the following we
24. ach point 7 8 Volume operations and terrain modifications An important part of the surveying process is the calculation of volumes Virtual Sur veyor Tools provides the capabilities to do this in a straightforward way All neces sary tools to perform these tasks are located under the Volume Operations group in the Virtual Surveyor Tools window figure 58 Volume operations D tf Ref m y 2 000 Calculate Volume Modify 0 000 Volume Difference Terrain 7 Auto Figure 58 The Volume Operations buttons group of Virtual Surveyor Tools grey and disabled Before you can make use of any of the buttons that are shown above you have to draw a polygon delineating the area where you want to apply the volume operations After drawing this polygon select it in the 3D viewport or the project tree For draw ing and selecting objects refer to Drawing points polylines and polygons You will see that the Volume Operations buttons are no longer grey but now appear in color figure 59 This means they are ready to use Volume operations Ref m ole Calculate Modify Volume Volume Difference Terrain v Auto Figure 59 The Volume Operations buttons group of Virtual Surveyor Tools in color and activated 7 8 1 Calculate volume The Calculate Volume function enables you to calculate a volume from your data Using this function you can calculate the volume between the terrain covered by the selected poly
25. acing between points e Set the direction of the grid Deere 7 Grid Type Spacing on 1st axis m Spacing on 2nd axis m Azimuth 0 90 0 0 ale n e le EE EE Figure 55 The Create Point Grid settings dialog In order to start the gridding operation click the Create Point Grid button As soon as the gridding process starts the Close button will become a Cancel button which can be used to cancel the gridding proces 7 6 3 Grid type Two grid types are supported e Rectangular grid tiles the selected polygon is subdivided into regular squares and a point is placed on each square node e Triangular grid tiles the selected polygon is subdivided into regular triangles and a point is placed on each triangle node Figure 56 Difference between rectangular grid left and triangular grid right 7 7 Annotate points Point annotations can be added using two buttons that are available in the Annotate section 1 2 Elevation Figure 57 The Elevation and Label annotation buttons 7 7 A Annotate with elevation You should click the Elevation button in order to annotate points with their corresponding elevation value Elevation values will be extracted from the terrain and added as a label to each point 1 1 2 Annotate with label You should click the Elevation button in order to annotate points with their corre sponding label Labels will be extracted from the project tree and added as a label to e
26. ain Sampling distance m Use maximal available resolution Units Planimetric map units metre m Vertical map unit Display uris Export SEA Figure 76 General settings dialog Temporary geometry styling Both color settings are controlled by the color picker which allows to specify a color by its red green and blue components and a transparency value D D D D Figure 77 Temporary geometry styling color picker W Change to a color if you are working over an area which has a white background like snow Terrain sampling distance Terrain sampling distance to set a specify sampling distance or to use the maximum available resolution in the terrain data W Turn of the Use maximal available resolution to speed up volume calculations Note that changing the sampling distance will influence the accuracy Units In the units section you can retrieve or specify information about your project s units Planimetric map units are read from the terrain file s projection system They cannot be changed Vertical map unit determines if your elevation source is defined in meters international foot or us foot You should set this manually based on your knowledge of the elevations source Display units determines in what units position elevation length surface and volume is shown You can choose between Metric Imperial US and Imperial Intl units a This setting you typically specify at the start of your w
27. ck the object in the project tree or delete the modify terrain object in the viewport or project tree Refer to the illustrations below to observe the effects of the Modify Terrain function ality The first step was selecting a polygon covering one half of a pile of limestone in a quarry figure 67 One Modify Terrain operation was carried out using the Auto reference plane figure 68 and another one was done using a custom elevation value figure 69 that was 1 meter lower than the soil level a x gt e Me n SA yon Se N Figure 68 The result of the Modify Terrain operation with the Auto ref erence plane Ni EA Won Hc A Te T IS Figure 69 The result of the Modify Terrain operation with a custom value 7 9 Exporting After drawing objects in the 3D environment Virtual Surveyor Tools offers you the capabilities to export these newly created elements to the dxf and shapefile shp formats Dxf files can be used by CAD software packages Shapefiles can be used by GIS software packages To open the export form press the export button figure 70 Figure 70 The Export button in Virtual Surveyor Tools The export function allows you to export a selection of layers each with a number of customizable options During the export Virtual Surveyor Tools preserve the layers of your project For more information you can read the section about working with groups and lay
28. completed your work you can save your project to a TerraExplorer project file fly file This is done by clicking on Save As in the file menu and se lecting TerraExplorer Project figure 33 A popup window appears where you can specify the name and the location of the fly file your project will be saved under This file type is used by TerraExplorer to save a reference to the content of your project and the associated settings Export Project to KML KMZ E TerraExplorer Options 2X Exit TerraExplorer Figure 33 Save your project as a TerraExplorer Project 6 2 Open project files Another way to start working with Virtual Surveyor is to open an existing project When you click on Open Project from File under Open in the file menu figure 34 you can browse for and select the fly file of the Virtual Surveyor project you want to work with E TerraExplorer Options B 2X Exit TerraExplorer Figure 34 Open an existing Virtual Surveyor project 6 3 Recreate project with terrain files If you have created terrain files and lost your Virtual Surveyor project file fly file you can reassemble your initial project file This is done by clicking on the start button at the upper left corner and selecting New Subsequently the program asks for a Terrain Database In this window you have to specify which terrain file you want to work with Make sure to load the Elevation ei mpt file as the base
29. e Apply License File tab e Click the lower right button and browse to the VirtualSurveyor v2c file that has been send to you by GeolD e Click Apply Update The license file will be transferred to the Virtual Surveyor USB authorization key e You are set now to work with the upgraded version of the software N ay LAUS Collect Status Information Apply License File Collect Status Information Apply License File Dear Customer The HASP Remote Update System RUS will allow you to update Virtual Surveyor without having to send your USB authorization key to GeoID To apply an update for Virtual Surveyor Make sure the USB authorization key is connected to your computer Go to the Start All Programs Virtual Surveyor folder and click on the Virtual Surveyor License Manager Go to the Apply License File tab and browse for the v2c file you received from GeoID by diking the button next to the Update File field Subsequently dick Apply Update You should now get a message that your key upgrade has been successful Ifitdoes not please go to the Collect Status Information tab and dick Collect Information Save this file using your name with an extension of c2v and send it as an email attachment to GeoID info amp GeoID eu This will allow the GeoID support team to check you license Update File Apply Update Figure 8 Virtual Surveyor l
30. e layer will be added in the project tree and can be turned on or off or can be completely removed The contour line intersection can be changed by right clicking the layer in the project tree and opening the properties window Figure 107 shows an example of using the Contour Map tool Figure 107 Contour map v Use the contour map as a background map if you want to digitize lines of equal elevation and export them to CAD You can then simply trace over the desired con tour lines using the polyline tool in the Virtual Surveyor tools module 9 6 Create terrain profile A Terrain Profile can be created from the Surveying section of the Virtual Surveyor tab figure 108 Figure 108 The Terrain Profile button The Terrain Profile tool displays the terrain elevation profile along a path and related information on this profile such as maximum and minimum elevation values and slope gradients To use the Terrain Profile tool 1 Click Terrain Profile in the Surveying pane of the Virtual Surveyor tab 2 Click positions on the terrain to mark the path to be analyzed Right click to indi cate the last positions in the series A Terrain Profile dialog box opens displaying the terrain elevation profile between the selected positions In this graph key positions appear as white vertical lines and sample positions appear as blue vertical lines There are five operation modes for the mouse within the profile graph e Z
31. e thickness Normal ow Import Settings Export Settings Restore Defaults Figure 82 Polyline styling dialog Line color picker Line color is controlled by a color picker which allows to specify a color in RGB and a transparancy channel Figure 83 Polyline color picker Line type The line type control offers a preselection of full and a series of dashed and dotted lines Figure 84 Polyline type presets Line thickness The line thickness control offers a preselection of four thicknesses Extra Thick Figure 85 Polyline thickness presets 7 10 4 Polygon settings The Polygon Styling settings allow control over e Polygon fill color default transparent e Polygon line color default white e Polygon line type defalt full line e Polygon line thickness default normal Polygon fill color Polygon line color White Polygon line type Polygon line thickness Normal impor Sens estore Deed Figure 86 Polygon Styling dialog Polygon outline and fill color picker Both polygon fill and polygon line colors are controlled by the color picker which al lows to specify a color in RGB and a transparancy channel Figure 87 Point and Label Styling dialog Polygon outline type The polygon outline type control offers a preselection of full and a series of dashed and dotted lines Figure 88 Point symbol presets Polygon outline thickness
32. east one image file or one eleva tion file Adding files can be done in two ways 1 Press the add button l and select one or more files To select multiple files select the first file and hold down the control key while clicking to add files to the selection list Alternatively you can select the first file of a range press and hold the shift key and then click on the last file in the range 2 Select one or multiple files in Windows Explorer and drag and drop them into the list box TerrainCreator will check each of the input files against the first file in the list When an issue is detected the start button will be disabled and a red error icon will appear above the file list Move your mouse cursor over the icon to read the error message For more information on the input file requirements read the help page on Input File Requirements 4 4 Setting the correct projection system The dropdown box next to Projection system indicates the projection system When this value is stored correctly in the input file tags TerrainCreator will be able to derive it and the projection system will appear automatically If this is not the case the projection system should be defined manually Without a valid projection system defined the start button will be disabled The projection system can be defined manually in two ways by selection or by typing 4 4 1 Selection Click on the arrow at the right of the list box and scr
33. eis E HE AE To aiculate E dify Volume D iffe rente Terrain E Mia NT EN Export 1 2 t a p Elevation Label Export Settings Information box lx Figure 37 Virtual Surveyor Tools interface 7 2 Working with Groups and Layers Virtual Surveyor Tools offers the functionality to organize your features using layers By grouping related objects into layers it becomes easier to keep an overview of the content of your project You can also control the style and offset of a particular layer The buttons to use this functionality can be found in the Layers group in the Virtual Surveyor Tools control figure 38 0 CEC IEF Figure 38 The Layers buttons group of Virtual Surveyor Tools Layers functions are e Set an active layer e Create a layer Delete a layer e Rename a layer e Add an elevaton offset to a layer e Style a layer 7 2 1 Layer list A first feature is a drop down list with all the layers that are present in your project figure 39 One layer is always present the layer called 0 the base layer of your project When you select a layer it will be shown in the box and become the active layer figure 39 bottom bank crest volume Figure 39 Drop down list with an overview of all layers in your project This implies that when you e draw new objects in the 3D window they will be added to the active layer e delete a layer all features that are p
34. ers When you click on the Export button the corresponding dialog window opens fig ure 71 In this window you can select which layers you want to export and specify several exporting options for each one of these layers separately Export layers x Export Name Densify Interval m Smooth Smoothing dist m Filename CAUserstPublickDocumentstMyVirtualSurvey dxf EY Overwrite Export Cancel Figure 71 The Export layers dialog window You can see that all groups from the project tree appear here as layers In the Ex port column you can include or exclude each layer in the final export You can specify the export filename and location directly in the Filename field or by using the browse button next to it Valid filenames should end with dxf for to gen erate a dxf files or with shp to generate a shapefile The browse form that opens when you click the browse button also allows you to specify either dxf or shapefile When the file you specify already exists you can mark the Overwrite check box if you are sure that you want to replace the existing file 7 9 1 Export to dxf When exporting to dxf the following rules are used e Each layer in Virtual Surveyor Tools will correspond to a CAD layer e All exported geometries are full 3D e Polygons are converted into CAD polylines e Annotations are copied into CAD text Points can be exported as cross hair
35. evation terrain files have fixed names respectively image ii MPT and elevation ei MPT If you have specified image and elevation input the images will be draped over the elevation data If you have specified image input only the created terrain will be flat with an elevation value O meters If you have specified elevation input only a slope map will automatically be created over you terrain When the terrain creation process finishes the Virtual Surveyor project fly is loaded automatically and you can start navigating through the terrain or navigate the project tree 4 8 Making a project portable Fly files created by TerrainCreator can be copied onto a different computer on which Virtual Surveyor is installed on the condition that the subfolder with the image and elevation files are copied over as well When you try to open a fly file that was copied onto another computer it is possible you will get a series of File not found messag es hese messages are shown because by default a fly file created by TerrainCrea tor contains absolute references to the elevation and image MPT files Therefore the fly file will only work on another computer if the directory that contains the elevation and image MPT files is exactly in the same location on the other computer e g C Temp MyTerrain This problem can be resolved by manually converting these absolute paths into relative paths When the reference paths are set relative your f
36. gon and a reference surface With respect to the reference surface you have two options i use an automatically calculated elevation surface or ii manually enter a reference height figure 60 Ref m Ref m 0 000 180 000 iV Auto E Auto Figure 60 Elevation reference level set to automatic left or manual right By default the Auto box is checked This means that Virtual Surveyor Tools will use as a reference a surface that is triangulated between the vertices of the selected polygon If you want to enter your own value uncheck the Auto box and fill in the Ref box above The reference surface will then be a flat surface with a fixed altitude When the desired option for the reference elevation is selected you can push the Calculate Volume button to execute the calculation The results are shown as a new line in the information box as shown in figure 61 Information box Vol 14508 1 m 417 5 m 14525 6 m Ref 180 0 x m Sd 0 05 m ERES Area 2D 1835 0 m Perimeter 2D 171 3 m E Figure 61 Information box with results of the Calculate Volume operation The main result is the net volume but some additional numbers and parameters are also shown e Vol 14508 1 m3 the net volume to be added if positive or removed if nega tive to convert the current terrain into the reference surface e 17 5 ma the positive volume volume between the terrain and the reference surface represen
37. he project setttings through the home tab of the ribbon or you can open them directly by clicking F8 Go to the Navigation tab figure 29 and change the Minimum Altitude value The minimum you can set is 0 1 meters above ground level AGL In order to apply the settings you should click Apply and OK Then Save and reopen your Virtual Surveyor project General Date and Light Layout Terrain Database Screen Overtay Environment Altitude by Minimum Altitude 2 Underground surface 250 5 9 Navigating the project tree When an image is included in the TerrainCreator process both the image as well as a home location will appear in the project tree on the left hand side after the conversion has finished figure 30 The home location is chosen so that it offers an overview of the area Double clicking on home in the Project Tree then allows you to return to this point from every point in the data set N av j g at O n Vi a TT Image Elevation Feature Select Infi Layer Layer Layer AKA KJ Figure 30 Project tree of the created fly file Ng Hint It is useful to set the home location as the opening location for the fly file by right clicking on Home in the Project tree and selecting Set location for auto start 5 3 1 Navigate with locations You can also create additional locations to easily find your way back to interesting places and points of interest in your project
38. icense manager Figure 9 Virtual Surveyor license manager Collect Status Information tab Apply License File tab 2 5 Uninstalling Virtual Surveyor To uninstall Virtual Surveyor click Uninstall Virtual Surveyor in Windows Start Menu You can also remove the programm via Add Remove programs An uninstallation wizard is launched First you will see the following welcome screen Click Next to launch the uninstallation process virtual Welcome to Virtual Surveyor Surveyor Uninstallation Are you sure you want to uninstall Virtual Surveyor This uninstall process will remove Virtual Surveyor from your computer Click Cancel if you do not want to remove this application Click Next to continue the uninstall process Virtual Surveyor Figure 10 Uninstallation welcome screen The uninstallation process starts and you will see the following screen Removing Virtual Surveyor application from your computer To stop or pause the uninstalling process click Cancel Deleting folders Virtual Surveyor Figure 11 Uninstallation progress When the uninstallation is completed succesfully the following dialog appears virtual Virtual Surveyor has been successfully surveyor uninstalled Click Finish to complete the uninstallation Figure 12 Uninstallation is finished 3 otarting Virtual Surveyor 3 1 Starting Virtual Surveyor Virtual Surveyor can be launched from the Windows Start Menu 1
39. ifference As with the Calculate Volume function you draw or select a polygon that covers your area of interest To start click on the Volume Difference button figure 63 fa Volume Difference Figure 63 The calculate Volume Difference button The Calculate Volume Difference dialog box will appear figure 64 In this dialog window you can specify the two terrain layers that will be used for the differen tial volume calculation for the selected polygon a Reference layer and a Second layer For each of these two layers you can select one of the terrain layers that are available in your project One layer that is always present is the lt base layer gt It rep resents the elevation of the MPT file associated with your project Next to this base layer you can select one of the additional terrain layers you added to your project To calculate the volume difference push the Calculate button Calculate Volume Difference Reference layer base terrain Second layer Inundated ae Calculate Cancel cI A Figure 64 The Volume Difference dialog window Afterwards the difference between these two volumes the second layer volume mi nus the reference layer volume is displayed in the information box with a mention of the two terrain layers that were used figure 65 When the result is positive as in this example it essentially means that the second laye
40. ithm is applied that is specifically designed to filter out elevation peaks that are present in the terrain due to noise Such noise origins in an UAS generated height model due to the nature of the pho togrammetric process An example of a line that was densified following the terrain without and with smoothing afterwards can be seen in Figure 73 e Smoothing dist this option specifies the length of the interval along the line that is used to select points to execute the smoothing Increase this distance if you want to obtain a higher level of smoothing If you don t specify any value Virtual Surveyor Tools will use a default value that is automatically de rived from the terrain resolution It is automatically calculated as fifty times the resolution of the terrain file Linear Terrain Figure 72 The graphical representation of the difference between no densification linear densification and terrain densification Short smoothing distance Figure 73 Original terrain dashed grey line densified with a short green line and a long blue line smoothing distance 7 10 Settings The Virtual Surveyor Tools settings can be launched by clicking the Settings button Figure 74 The Settings button Figure 75 Import export and restore default buttons 7 10 1 General settings F ELI Nga Temporary geometry styling Temporary line segment color Temporary vertex color White Terr
41. k on the browse button to the right of the text box and select the appropri ate folder After the correct folder has been selected type the name of the fly file in the box at the bottom amp File Name of TerraExplorer Project File e wk Computer OS C Temp TC vi pP Organize New folder vw X Favorites RE Desktop vi Libraries LB cpteyndt N Computer amp OS C g OVD RW Orive D tx GeoDB 1192168151 es Removable Disk Ft GA pluto 192168161 P ew Microsoft Office Click to Run 2010 Protected Q am Removable Disk FR am Femovable Disk gt LaGe V c gt BackUpol Z th Network 93 Control Panel Filename test Save as type Terra xplorer Project File fiy Hide Folders Cancel Figure 17 Defining output project file When the terrain creator process starts a subfolder with the same name as the fly file will be created in this location This subfolder will contain the image and elevation terrain files which are necessary to create the project fly file At this point all references are absolute which implies the project file and folder can not be moved to another location In order to be to move your project file and folders between computer go to the Make a project portable section 4 3 Define the image and elevation input Once you selected an appropriate fly file you can add image or elevation files into the respective list boxes TerrainCreator requires at l
42. l Aerial Virtual Terrain Contour Slope Slope layer Layer Layer Surveyor Tools Profile lines colors directions Add Laye Measur 5 Surveying 6 rrai Project Tree ML Imace Ho Refresh Layer Create Resolution Pyramid Fly to Object Jump To Object View Object m Stop Display Message Attach Object to Object Edit Attach Parameters Set Object For Auto start v ShowIn Viewer Project Tree Delete Rename Properties X 0 00 Y 0 00 Z 0 00 m Le ko CECE x Drawing aa o Figure 24 Locating the imagery layer properties Imagery Layer EF Appearance Marne Image Activation Action Fly To Line Color MM 000000 Line Opacity Ika Fill Qpacity 100 E Line Style Line Width 0 0 Line Back Color MM 000000 Line Back Opacity Ika Line Pattern El Points Position E Imagery Imagery File AMpTerainklmagen ii mpt Upper Left x 209245 975438 Upper Left Y 188400 015199 Lower Right X 2098400 01544 Lower Right Y 187343 385133 Click on Edit ta select a texture from an image file Figure 25 Changing the imagery layer file path Second change the path of the elevation layer 6 Open the project settings by pressing F8 7 Browse to the Terrain Database tab and set the path to My Terrain Elevation ei mpt Terain Source pa Terain Database AMyTermain Hevation ei mpt CJ Browse Number of Temain Imaginary Levels 2 Figure 26 Changing the elevation layer file path
43. lD s website at www GeolD eu 2 9 License activation In order to activate the full license for Virtual Surveyor software you need to take the following actions e Plug in the Virtual Surveyor USB key e Plug in the TerraExplorer USB key e Copy your SLTerraExplorerPlus lic file into the TerraExplorer installation direc tory This is typically e C Program Files x86 Skyline TerraExplorer Pro for 64 bit systems and e C Program Files Skyline TerraExplorer Pro for 32 bit systems Figure 7 Virtual Surveyor USB authorization key 2 4 License update Virtual Surveyor comes with one year of maintenance If you install an upgraded ver sion of Virtual Surveyor you should also update your licensing information In order to upgrade TerraExplorer you will receive an updated SLTerraExplorerPlus lic file Proceed the following way e Copy your SLTerraExplorerPlus lic file into the TerraExplorer installation direc tory This is typically e C Program Files x86 Skyline TerraExplorer Pro for 64 bit systems and e C Program Files Skyline TerraExplorer Pro for 32 bit systems In order to upgrade Virtual Surveyor Tools and TerrainCreator modules you will recieve an updated VirtualSurveyor v2c file which you should transfer to your USB authorization key Proceed the following way e aunch the Virtual Surveyor license manager from the program list e Make sure your Virtual Surveyor USB authorization key is connected to your computer e Click th
44. lcome screen virtual Welcome to the Virtual Surveyor surveyor Installation This setup program will install Virtual Surveyor on your computer Click Cancel if you do not want to install this application Click Next to continue the installation WARNING This program is protected by international copyright law and treaties Unauthorized reproduction or distribution af this program or any portion of it may result in severe civil and criminal penalties and will be prosecuted to the maximum extent of the law Virtual Surveyor Figure 2 The Virtual Surveyor installation welcome screen In order to proceed with the installation click Next The End user license agreement is shown Carefully read the end user license agreement before accepting To proceed with the installation you must accept this License Agreement Please read it carefully Software License Agreement END USER LICENSE AGREEMENT FOR VIRTUAL SURVEYOR IMPORTANT PLEASE READ THE TERMS AMD CONDITIONS OF THIS LICENSE AGREEMENT CAREFULLY BEFORE STARTING WITH THE INSTALLATION OF THE SOFTWARE This End User License Agreement EULA is a legal agreement between you either an individual or a single entity and GeolD BVBA for i the software product s identified above which may include associated software components content media and online or electronic documentation SOFTWARE PRODUCT Rw acrantinc GenllYze offer an ar hu installing convino ar afha
45. le to turn it on or off Fram File Lookin MyVirtualSurvey GE BP Er Name Date modified Ti Elevation ei mpt 18 12 2013 10 24 M Image i mpt 27 01 2014 21 34 M Figure 92 Adding an additional terrain image layer iu Image and elevation terrain files can be distinguished through the ei and ii postfix Other image file formats You can also add other file formats but the application works best with the native terrain format mpt If you don t have your data available in the terrain format you should first create a new terrain See the Using TerrainCreator section on how to do this 8 2 Add additional elevation layers An extra terrain layer can be added through the add Elevation layer option under the Virtual Surveyor tab figure 93 3 Home Analysis Navigation View Objects Tools Virtual Surveyor e ed ha PA basi 59 DE Virtual Terrain Contour Slope Slope Figure 93 The add Elevation Layer button in the Virtual Surveyor tab OE EA el Surveyor Tools Profile lines colors directions When the button is clicked the following dialog figure 94 opens Browse to the ter rain format mpt and add an additional elevation layer This layer will also be shown in the project tree and you will be able to turn it on or off From File Lookin MyVirtualSurvey GE BP Er Name Date modified Ti Elevation ei mpt 18 12 2013 10 24 M Image ii mpt 18 12 2013 10 2
46. lines and slope gradients e Densification and smoothing of polylines e Automatic annotation of elevation values e Conversion of various file formats tif jpg img jp2 into the high perfor mant terrain format e Assemble multiple tiles into one terrain file e Automatically add terrain files to a new Virtual Surveyor project fly 1 5 What s new in Virtual Surveyor 1 5 1 New in version 2 2 e Expanded Virtual Surveyor tab elmproved symbology settings e Apply symbology to a layer e Point naming settings e Dynamic and faster annotations e Annotation with labels elmproved geometry editing e Set geometry elevation offsets e Automatic point grid creation e Metric Imperial system e dxf shp export improvements e Object information editing 1 5 2 New in version 2 1 eNew licensing system that works with a portable USB authorization key e Faster conversion of terrain files e Automatic creation of a new Virtual Surveyor project fly with a home location e ncreased flexibility for handling NoData values e Export virtual surveys to shapefiles e Support for jp2 file format elmproved and integrated installer for Virtual Surveyor Tools and TerrainCreator modules elmplementation of a Virtual Surveyor skin 1 6 Software and hardware requirements In order to install and use Virtual Surveyor your hardware and system resources should meet the following requirements 1 6 1 Software requirements Virtual Surveyor works on Windows XP
47. ll connect the vertices by straight lines into 3D This will allow you to place vertices on meaningful positions only For example you can avoid rocks or debris that are in quarries and which are not part of the effective terrain figure 48 In the export form you have the option to densify polygons and place intermediary vertices on the terrain m oam ME Y NICHE aa Se have been placed before and after the pile not on top ofit Information about the polyline s two and three dimensional length is listed in the Information box after a polyline is drawn figure 49 Information box Length 2D 268 5 m Length 30 268 5 m GI Figure 49 Basic polyline information in the information box Additional information about the information box can be found in the information box section bl For tips and tricks concerning drawing polylines breaklines refer to the Terrain Analysis section 7 4 3 Drawing polygons When you push the Polygon button The cursor changes into a small black empty circle and you can start drawing polygons in the 3D window A polygon is made up from at least three points that are fixed by clicking specific positions in the terrain When all the points that define your polygon are marked you can finalize it with a right click Push the Polygon button once more to exit the polygon drawing mode The boundaries of the polygon will be constructed by connecting the vertices with straight lines in 3D
48. ly file will open imme diately on any computer as long as you do not change the names and locations of the image and elevation MPT files and keep the location of the image and elevation MPT files relative to the fly file CC gt Bibioheken Documenten Projects e ey Zoeken Pyes Bestand Bewerken Beeld Extra Help Organiseren v Q Openen v Delen met v E mail Fr Favorieten Documenten z Bureaublad Projects Mm Downloads T Recente locaties Rangschikken op Naam J MyTemain Ta Bibliotheken Le MyTemanay E Afbeeldingen Documenten a Muziek v Podcasts B Video s 8 Thuisgroep N Computer 23 MyTerrain fly Gewijzigd op 18 04 2013 22 14 Aanmaakdatum 18 04 2013 22 14 o FLY bestand Grootte 0 bytes Figure 23 Put the fly file and the MPT folder in the same directory Proceed as follows in order to make a project portable 1 Save the MyTerrain fly file in the parent directory of your elevation and image MPT files directory figure 23 2 Open the fly file in Virtual Surveyor 3 In the Project Tree Right click Image Properties The Imagery Layer properties window opens 4 Under Imagery File change the path to MyTerrain lmagery ii mpt and press Enter 5 Save your project by pressing Ctrl S Home Analysis Navigation View Objects Tools Virtual Surveyor 2 OSes Sire alm ED 4 AA ee TerrainCreator Image Elevation Feature Select Select Horizontal Vertica
49. n two or more positions Note that the horizontal distance does not account for the elevation difference between the measured positions Pw meme a UIS Figure 99 The horizontal distance between two positions Aerial distance The aerial distance tool figure 100 allows to measure the three dimensional dis tance elevation difference and slope gradient between two or more positions The aerial distance is the actual distance between the positions Figure 100 The aerial distance between two positions Vertical distance The vertical distance tool figure 101 allows to measure the vertical difference be tween two positions by selecting the first position and dragging the ruler up to the desired position t First point height 0 00 Meters Second point height 11 42 Meters an n L arence xd te Elevation Difference 11 42 Meters Figure 101 The vertical distance between two positions 9 3 Create slope color map A slope color map can be create from the Terrain Analyis pane of the Virtual Sur veyor tab figure 102 6 Terrain Analysis Figure 102 The Slope Colors button The Slope Color Map creates a slope map on the terrain which shows gradient steepness in degrees and or aspect direction The terrain is colored according to the slope gradient Simply click the button to activate the layer The layer will be added in the project tree and can be turned on or off or can be com
50. nalysis e Calculate distances surfaces and slopes 1 2 Virtual Surveyor components Virtual Surveyor consists of TerraExplorer Plus with Virtual Surveyor tab the following components TerrainCreator e Virtual Surveyor Tools 1 2 1 TerraExplorer Plus with Virtual Surveyor tab Virtual Surveyor builds on the TerraExplorer Plus visualization engine TerraExplorer Plus has been expanded with a Virtual Surveyor tab that contains the buttons to start the TerrainCreator and Virtual Surveyor Tools modules It also contains a series of buttons related to the most common functionalities used by a virtual surveyor addition of image elevation and vector layers select controls measurement controls and terrain analysis functions 1 2 2 TerrainCreator TerrainCreator converts elevation and image datasets into the terrain format mpt which is best suited for fast visualization in the TerraExplorer visualization engine 1 2 3 Virtual Surveyor Tools Virtual Surveyor Tools contains functionalities to create CAD surveys and volume analysis on terrain files 1 3 Software version This manual applies to version 2 2 of Virtual Surveyor 1 4 Product highlights e Fast visualization of image and elevation data in a virtual environment e Draw breaklines and survey points and export layers to a CAD or GIS format e Automatically create point grids e Real time calculation of volumes and volume differences e Real time calcuation of elevation contour
51. nyize ing the I agree with the above terms and conditions oO Ido not accept the agreement Figure 3 End user license agreement for Virtual Surveyor You have to agree with the license agreement in order to proceed Click Next and the setup settings are shown Ng wo Installing Virtual Surveyor Please select the Virtual surveyor modules to be installed Specify setup settings Select the Virtual Surveyor modules to be installed Virtual Surveyor Tools TerrainCreator Select your Virtual Surveyor preferences Do you want to apply the Virtual Surveyor skin Do you want a Virtual Surveyor desktop icon Do you want a Virtual Surveyor quick launch icon Virtual Surveyor Figure 4 Setup settings dialog For a typical installation you can leave all modules checked on but you have the abil ity to uncheck Virtual Surveyor Tools or TerrainCreator When doing so the respective module will not be installed You can also choose to apply the Virtual Surveyor skin to create a desktop short cut or quick start icon When you have made your selection click Next to start the installation process w Installing Virtual Surveyor Installing Files Copying Virtual Surveyor files to your computer Please be patient Virtual Surveyor will be installed This will take some time Directory C Temp TerraExplorer File TerraExplorerSetup exe Virtual Surveyor Figure 5 The Virtual Surveyor installation progress
52. oll till you find the correct projec tion system Projection system WGS 84 UTM zone 31N 32631 a WGS 84 UTM zone 315 32731 Input elevation informal FA EE rod EP ERE pa Wis 84 UTM zone 325 32732 File location 83 was 84 UTM zone 33N 32633 WG5 84 UTM zone 335 32733 Figure 18 Selection of projection system by scrolling down the list 4 4 2 Typing Start typing the projection system in the textbox A subset of the provided systems will appear Watch out for typing errors Projection system was 84 utm zone WGS 84 UTM zone 10N 32610 WGS 84 UTM zone 105 32710 Input elevation informat WGS 84 UTM zone LIN 32611 WGS 84 UTM zone 115 32711 WGS 84 UTM zone 12N 32612 WGS 84 UTM zone 125 32712 Figure 19 Smart select to find projection system File location as 4 5 Requirements for input files The following rules apply to the input files you select 1 TerrainCreator will try to retrieve the projection information from the input file from geotags or from an associated prj file In case the projection information cannot be retrieved you need to supply a projection system using the Projection system dropdown box 2 Lists of multiple files are expected to be part of a tiling scheme that was used to split up a larger image of elevation file Multiple input files with different pixel sizes and extents that are not part of a tiling scheme are not supported 3
53. oom in Zoom in on a specific part of the graph by clicking the left mouse button e Zoom out Zoom out of the graph by clicking the left mouse button e Pan Results Scroll the graph in the desired direction by using the left mouse button e Jump to Sample Point Click on the graph The camera subsequently jumps to the selected sample location in the 3D Window e Sample Point Information Click on a specific sample position in the graph to get additional information about the selected location This information displayed in light blue shows the sample elevation coordinates and slope gradient If you want to save the terrain profile click Export Results The resulting file is a comma delimited text file with each line representing a sample position or a key position For each position the following values appear e X The X coordinate of the position e Elevation The elevation value of the position above the terrain s database vertical datum base ellipsoid e Y The Y coordinate of the point e Key Frame A value of 1 for a key position or O for a sample position e Ground object A value of 1 for a ground object located at the sample position or 0 for a terrain position An example of the result of such a terrain profile is shown in Figure 109 q GQ tm n ula din E E I 12 26 Meters Ground distance 433 44 Meters Figure 109 Terrain profile W Interleuvenlaan 62 3001 Leuven e Belgium Tel 32 16 394 7
54. or real points This setting can be controlled through the General Settings 7 9 2 Export to shapefile When exporting to shp the following rules are used e Points polylines and polygons will be converted into separate shapefiles since the shapefile format does not allow to mix different geometries e The naming convention is to append points polylines and polygons to the shapefile name e g If you enter myExport shp the exported shapefiles will be named myExport points shp myExport polylines shp and myExport_ polygons shp e Note that a shapefile is actually a group of files with different extensions shp dbf shx qix prj that belong together e Each shapefile contains the layername as an attribute e All geometries are full 3D ie pointZ polylineZ and polygonZ Many GIS viewers can however only display these geometries in 2D e The point shapefile contains the X Y and Z values as attributes The polyline shapefile contains the length in 2D and 3D as attributes while the polygon shapefile contains the perimeter and area as attributes e When there are no geometries of a certain type e g no polylines the cor responding shapefile is not created e The shapefiles contain the projection of the currently loaded terrain file Note that the attribute tables of shapefiles are in the dbf DBase format These files can also be directly imported into Microsoft Excel 7 9 3 Export options For each layer
55. ork Units in Metric system eposition in meters m e elevation in meters m e length in meters m e area in square meters m e volume in cubic meters m Point export format for CAD files You can choose to export points as a cross of two lines or a real point This setting only applies to CAD files 7 10 2 Point and label settings Point Naming Name prefix Point Start number Point Styling Point shape Point color Point size Normal Label Styling Label font color Label font size Figure 78 Point and Label Styling dialog Point naming The point naming section allows control over e Name prefix which can be any alphanumeric text e Naming method which allows to choose between consecutive number or date and time based naming e Start number is only active when consecutive number is choosen and is the first number that will be added after the point name prefix e Increment is only active when consecutive number is choosen and controls the increase of point numbering v When a prefix is changed numbering again starts from the specified Start number Point styling The point styling section allows control over e Point shape which offers a preset of a cross rotated cross eye drop and a survey rod figure 79 e Point color e Point size Figure 80 Color picker Figure 81 Point size presets Label styling 7 10 3 Polyline settings Line color Line type Lin
56. pletely removed Figure 103 shows an example of a slope color map Figure 103 Slope color map m The slope map tool is very useful as a background layer when digitizing crests and breaklines in quarries as shown in figure 103 The blue zones in figure 103 are flat terraces and the red zones are steep slopes The crest or breakline can be easily drawn on locations where the colors change 9 4 Create slope direction map A slope direction map can be create from the Terrain Analyis pane of the Virtual Surveyor tab figure 104 B Contour Slope lines colours directions 6 Terrain Analysis Figure 104 The Slope directions button The Slope Direction Map creates a set of arrows that display the direction of the slope Simply click the button to activate the layer The layer will be added in the project tree and can be turned on or off or can be completely removed Figure 105 shows and example of a slope direction map Figure 105 Slope direction map 9 The slope map tool is very useful to evaluate runoff and water accumulation 9 5 Create contour map A contour map can be create from the Terrain Analysis section of the Virtual Sur veyor tab figure 106 Slope Slope lines colours directions 6 Terrain Analysis Figure 106 The Contour lines button The Contour Map tool creates a topographic map containing contour lines of equal elevation Simply click the button to activate the layer Th
57. presentation or understanding between the parties in relation to the SOFTWARE PRODUCT If umn AA nat 3mraa with tha tarme af thir FIINA da nat arrant licancarc affar an inctall Ar rics the Figure 27 The About window To close the About window press OK o Navigation through the terrain 5 1 Navigating through the terrain Virtual Surveyor uses the powerfull TerraExplorer visualization engine to explore and navigate through the created terrains It is possible to navigate in the 3D window using both the mouse and the key board The mouse figure 28 enables all possible movements e hold left button panning e roll scroll weel Zooming in and out e hold scroll weel tilting and rotating Wheel roll zoom in out Left button panning ma b Wheel click tilt rotate Ne Figure 28 The mouse controls to navigate in the 3D window The keyboard makes it possible to move trough the 3D environment as well e arrow up and down tilting up and down e arrow right and left rotating right and left e S and X move up and down e Q and W move left and right e A and Z move forward and backward e space stop all movement 5 2 Change minimum altitude When a new project file is created the minimum elevation value is set to 2 or 10 me ter by default depending on the version of your visualisation engine You can manually change this value through the navigation tab of the project set tings You can open t
58. r has on average higher elevations than the reference layer for the selected polygon Information box Vol dif Inundated Area Winter 2014 base x terrain 58991 85 m Sd 0 06 m i Area 2D 337330 7 m Perimeter 2D 2187 9 m E Figure 65 The Volume Difference report in the Information box Additional information about the information box can be found in the information box section 7 8 3 Modify terrain The Modify Terrain function enables you to locally alter the terrain model Using this function you can replace the terrain surrounded by the selected polygon with a reference surface You have two options regarding this reference surface i use an automatically calculated elevation surface or ii enter manually a reference height figure 66 Ref m Ref m 0 000 180 000 Auto Auto Figure 66 Elevation reference level set to automatic left or manual right You can use the first option when you want to level the terrain in your polygon and ensure at the same time a seamless join with the adjacent terrain The second op tion can be used to level the terrain to a fixed altitude You can specify which option you want to use at the right of the Modify Terrain button where the Auto box is checked by default figure 66 The result of this operation will be the appearance of a New Modify Terrain object in the project tree To go back to the original terrain you can simply unche
59. re distances The tools to measure distances can be accessed through the buttons in the Measure pane of the Virtual Surveyor tab figure 98 The distance between two or more points can be measured in different modes e horizontal distance e aerial distance e vertical distance A ED x Horizontal Vertical Aerial NOU eo tery ee ae Figure 98 The Measure Tools buttons Usage To use these distance tools 1 Click the Horizontal Aerial or Vertical button in the Measure pane of the Virtual Surveyor tab 2 Click any position on the terrain or any object in the 3D Window to define the start position of the measurement A yellow line extends from the start position 3 Drag the cursor to the next position and click again 4 Repeat step 3 to add as many segments as required only for Horizontal and Aerial 5 Right click to finish the measurement only for Horizontal and Aerial 6 If you want to obtain measurements between any two or more positions in the ter rain repeat steps 2 5 described above with the Horizontal Distance tool selected 7 If you want to close this tool click once more on the selected or any other button in the Virtual Surveyor tab The Message Bar below the 3D window displays the relevant measurements of each of the three tools Horizontal distance The horizontal distance tool figure 99 allows to measure the projected two dimen sional distance elevation difference and slope betwee
60. resent in this layer will be deleted e apply a style all feature in this layer will recieve this style definition Layers are represented in the ProjecTree with a directory icon and contains a link to each point polyline or polygon object that is present in this layer figure 40 B LJ top bank ZEE T Polygon 2012716 59035 Figure 40 The Project Tree window showing the structure of layers and objects 7 2 2 Create a layer A new layer can be created by clicking the green addition button A popup window appears and you can specify the name of the layer to be added figure 41 Press OK to finish this process Figure 41 Popup window to enter the name of the layer 7 2 3 Delete a layer An existing layer can be deleted by clicking the red cross 4 This process will delete all features that are contained by this layer A confirmation will be requested before the actual process starts figure 42 Delete layer Figure 42 Dialog window to confirm the removal of the selected layer m Hint If you delete a layer from the Virtual Surveyor Tools control the deletion process will be executed much faster up to 20 times then when you delete a layer from the project tree 7 2 4 Rename a layer An existing layer can be renamed by clicking the following button Se A popup win dow appears and you can specify the new name figure 43 Press OK to apply the new name to the layer Rename layer p Figure
61. ss the Create Terrain button to start the terrain construction A progress bar at the bottom of the form will indicate the progress Additional progress indications are a percentage complete elapsed time and an remaining time indication You can cancel the construction process by pressing the Cancel button 4 ej l me TE imc l Output project file fly Input image information File location G UAV LummenTurbine Imagery v20120525 Ortho RGB Tiles tif ortho LummenTurbine 2012 1 A tif ortho LummenTurbine 2012 1 5 tif ortho LummenTurbine 2012 1 6 tif ortho LummenTurbine 2012 1 7 tif ortho LummenTurbine 2012 2 3 tif Projection system WGS 84 UTM zone 32N 32632 Input elevation information File location G UAV LummenTurbine Altimetry v20120525 Grid Tiles tif dem LummenTurbine 2012 1 4ttif dem LummenTurbine 2012 1 5 tif dem LummenTurbine 2012 1 6 tif dem LummenTurbine 2012 1 7 tif dem LummenTurbine 2012 2 3 tif nd Ignore value 99999 7 Background value Projection system WGS 84 UTM zone 32N 32632 Cancel Elapsed 00 28 41 5396 Done Remaining 00 26 12 i n Figure 22 Progress indications during the conversion process During terrain construction TerrainCreator will save the project fly file in the base folder In addition all terrain files will be stored in a subfolder with the same name as the fly file see Define the output The image and el
62. than O Note that you can manually enter a NoData value through the lgnore value text box If you want to recycle the value of the input elevation header data click the recycle button The knowledge of this NoData value is necessary because TerrainCreator requires an elevation value for each pixel Therefore it will change the NoData into a back ground value 4 6 2 Specify a background value A background value is a arbitrary elevation value that helps to easily navigate through the terrain TerrainCreator can propose a background value by clicking Suggest This will be a value at the bottom of your elevation grid rounded down to the next ten Alternatively you can enter this value in the Background value textbox It is important that this background value lies close to the minimum elevation Oth erwise it will be difficult to navigate in the new terrain This principle is illustrated in figure 21 Suppose the bottom of a valley lies at 100m and the original nodata value of the DEM is O Not setting a correct background value will result in a Tower effect in the terrain created by TerrainCreator Figure 21a This effect makes it difficult to navigate smoothly through the terrain file Eventually the terrain file will look like Figure 21b FRE EUN 100m AMSL Tower effect 0 Nodata a b Figure 21 Tower effect and the impact of the background value 4 7 Create terrain Pre
63. ting the volume that needs to be added to rise the terrain towards the reference surface e 14525 6 m3 the negative volume between the terrain and the reference sur face representing the volume that needs to be taken away to lower the terrain towards the reference surface e Ref terrain the reference surface that was chosen being the mean value of the terrain for that particular polygon Ref terrain or an elevation value spec ified by the user e g Ref 180 0 m e Sd 0 05 m the sampling distance for the volume calculations which can be changed as explained in the section about the Virtual Surveyor Tools Settings Additional information about the information box can be found in the information box section v It is possible to select multiple polygons and calculate the volume for all of them at the same time You can see the results for each individual polygon when you selected the polygon in the 3D viewport or the project tree The volume will be displayed in the information box 7 8 2 Calculate volume difference The Volume Difference function allows to calculate the volume difference between two elevation terrain layers Multiple elevation layers At least an additional elevation layer in the terrain format mpt should be present in a project in order to perform a volume difference operation See the Adding an eleva tion layer section in order to learn how to add an additional elevation layer Calculating the volume d
64. urately 7 3 Information box The information box can be found at the bottom of the Virtual Surveyor Tools interface Information box Figure 45 An empty information box The information box reports basic information as soon as a point polyline or polygon is selected This information is automatically calculated and is shown each time a geometry is selected from the project tree It will show for e Points coordinates and elevation value e Polylines two and three dimensional length e Polygon two dimensional surface and perimeter e Volume and volume difference measurements You can also copy the entire content of the information box by clicking the copy but ton Ol You can paste the information in any text editor program You can also edit the content of the information box by clicking in the white area and typing the information You can also reset the content of the information box by clicking the Reset button All information is deleted accept for the basic geometry information 7 4 Drawing points polylines and polygons Looking for and marking essential elements in the study area is the core of each land surveying process Virtual Surveyor Tools offers you the possibility to draw directly in your terrain model Using the tools in the Drawing group of the Virtual Surveyor Tools interface figure 46 you can draw points polylines and polygons Drawing Figure 46 The Drawing buttons group of Virtual S
65. urveyor Tools 7 4 1 Drawing points When you push the Point button The cursor changes into a small black cross and you can start drawing points in the 3D window When you click a point is placed on the terrain To position this point as accurate as possible you can zoom in move and change the viewing direction If you click and hold the left mouse button moving the cursor allows you to pan in the 3D environ ment All mouse and keyboard commands see the section about navigating in the 3D window under Navigating through the terrain are still fully functional You will continue in the point drawing mode until you push the Point button again to exit The coordinates and elevation of the point are listed in the information box figure 47 Information box X 737974 0 m Y 7195412 8 m 2 232 8 m x Figure 47 Basic point information in the information box Additional information about the information box can be found in the information box section 7 4 2 Drawing polylines To draw a polyline push the Polyline button The cursor changes into a small black empty circle and you can start drawing polylines in the 3D window The first time you click the starting point is fixed and by each additional click you add an extra vertex to the already existing line Right click to finalize the polyline with all its segments You exit the polyline drawing mode by pushing the Polyline button again A polyline wi

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