Installation Manual of the 3D DTM Viewer - Geo-Seas
Contents
1. GS_WP11_D11 5B GEO SEAS 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 Contents je 6 6 611 6 q een nner Neeser E et aoe ee ee eee eee ee eer 5 2 Details of the user license ccccccecccecccececeecceecceeeceeeceecceeecececeeecseeceeecsessueeeeesnansnass 6 2 1 Description of the SOTWANE cccccccceeeceeeseeceeeeseeeceeceeceeesaeeseeeseeteeeseeseeeseeeseeees 6 22 PCCCSS TONS SO MV OES E Sentai A A Memmi niiaeud siemenbnienat T 2 3 Terms and conditions Of USC cccceeccceececeeeceeeceeeeeeeeeceeeeseeeseueeseeeseeeseueesseesaneesaees 7 24 intelectual Properly srecen ip E E i 7 3 Instructions for downloading the VICWEL ccccceececeeeeeeeeceeeeseeeeaeeeseeeeseeeseeeesseesneess 7 4 Viewer installation ProC CQures ccccccscccceeccsseeceeeeseeeceeeeseeeeseeessueeseeeeeeeesseeeseeesaeeess 9 4 1 Ft Ch OUISIICS ccinanracammarsacminanrachanen N E E 9 4 2 AS AMM AV Ae EE EE A EA A E 10 at WIDAOWS cescsrssinernnines roenn anena EnEn ENE EEA ENEAN EE SENEE AEREE 10 0 M O E er 10 c Linux validated with CentOS 6 3 cccccccccceececeeeeeeeeeeseeesseeeeseeseseeeeseeesaeees 11 4 3 Cla he a oe ee 11 44 Sotware INSTAIQTION serseri niine EA a Eai 13 O NON eae rE RE E E E E E R E E E Ri 13 0 e N A a ee 13 o e ee nee eee 14 4 5 Uninstall procedure ccceccceeccceeeceeeeceeecececeucecseeceucecsueesaeeseueeseeessueessusenseeeaes 15 4 6 Helpdesk es2. is designed for 64 bit Windows MacOS and Linux Systems the Linux version has not been subject to advanced tests The software requires 4GB RAM are required and for large DTM file with a layer of CDI identifiers 8 GB is recommended Successful tests were performed with GS_WP11_D11 5B GEO SEAS 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 DTMG up to 300MB but the upper limit is not precisely known however problems can occur when loading the DTM especially when tiling Key recommendations can be obtained from the NASA website as follows e information about configurations can be obtained from http worldwind arc nasa gov java e instruction on how to update the driver http worldwind arc nasa gov java video html 4 2 Installing Java The viewer has been designed to work with the Oracle s Java execution environment JRE version 6 or later Java Runtime Environment To ensure the correct version of Java is installed it is recommended to use JRE 6 Note that JRE X is the JRE for Java X Note when uninstalling or installing a new version of Java this can cause problems with other applications that are also using Java lfremer cannot accept responsibility for any problems that are caused with other software installed on a user computer as a result of installing the 3D viewer a Windows o Make sure that the java version on your computer is 1 6 or above o To check the version of Java ins
3. to access the metadata for the source datasets in each DTM cell by means of the unique identifier from the Geo seas SeaDataNet Common Data Index CDI http www geo seas eu v_cdi_v2 search asp e European Seas bathymetric grids produced as part of the Hydrography and Seabed mapping preparatory actions for the European Marine Observation and Data Network EMODnet http www emodnet hydrography eu which can be downloaded in the Geo Seas transport format and also viewed using the 3D Geo Seas viewer e These standard format grids can be produced using Generic Mapping Tool GMT and scripts developed specifically for this purpose see http www geo seas eu for downloading or by using various software tools such as Caraibes or Sonarscope http flotte ifremer fr fleet Presentation of the fleet On board software e The Geo Seas 3DViewer is a complete standalone application based on Nasa WorldWind technology and associated 3D engine It is developed in Java and available on all platforms running Nasa WorldWind 2 Details of the user license 2 1 Description of the software The Geo Seas 3D Viewer Software is a geographical 3D Viewer which enables innovative and high performance 3D viewing for data such as Digital Terrain Models DTM and web map services WMS in a virtual globe environment The Geo Seas 3D Viewer is provided as a means to demonstrate viewing services for DTMs that have been produced in accordance with the proposed Ge
4. 8 Figure 3 Downloading the software request form ccceeeeeeeeeeeeeeeeeeeeeeeeeeeees 9 GS_WP11_D11 5B GEO SEAS_ 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 x J j h a l i oe jpn 25 i Cas r i 7 Annex C Terminology Array Technologies Industry ATI Technologies Inc was a semiconductor technology corporation specialized in the development of graphics processing units GPU In 2006 ATI ATI was acquired by AMD which retired the ATI brand in favor of the AMD name http www amd com fr Pages AMDHomePage aspx ATI name is still in use among users Common Data Index common Geo Seas SeaDataNet catalogue of observation datasets http www geo seas eu content content asp menu 0020000_ 000000 CDI ID Identifier of a dataset in the CDI Digital Terrain Model European Directory of Marine Organizations http www seadatanet org Metadata EDMO EMODnet European Marine Observation and Data Network FAQ O O Frequent Asked Questions GS Geographical Information System G MT Generic Mapping Tools http gmt soest hawaii edu Graphics Processing Unit Java is a general purpose concurrent class based object oriented language that is CDI specifically designed to have as few implementation dependencies as possible It is intended to let application developers write once run anywhere meaning that code JAVA that runs on one platform does not need to be recompiled to r
5. Geo Seas Pan European infrastructure for management of marine and ocean geological and geophysical data fp DE as Be Se HiT ORI Geo Seas ww D11 5 Geo Seas 3D DTM viewer installation manual Organization name for lead contractor for this deliverable SHOM Project acronym Geo Seas Project full title Pan European infrastructure for management of marine and ocean geological and geophysical data Grant Agreement Number 238952 Start date of project 1 May 2009 Co ordinator Helen Glaves e e P da British gees Geological Survey eoosse NATURAL ENVIRONMENT RESEARCH COUNCIL a infrastructure Status FINAL Version 0 5 Deliverable number Short Title D11 5B a 3D DTM viewer installation Long Title Geo Seas 3D DTM viewer installation manual for the Geo Seas DTM prototype Short Description This document comprises the primary documentation for installation and use of the 3D viewer software package developed for viewing the Geo Seas Digital Terrain Model DTM data sets produced according to the Geo Seas methodology described in D11 4 Also included are the conditions of use and downloading procedures to obtain the viewer application Keywords DTM 3D viewer prototype Authors Organization s Editor Organization G Quemener E Moussat Ifremer H Gl NERC B G Sutton UCC Nave annie GS WP11 D11 5B GEO SEAS 3DViewer _V124 Installation Manual v0 5 doc Deliverable due date Deliverable sub
6. Viewer software to third parties without prior consent from Ifremer 2 4 Intellectual Property All copyrights on the Geo Seas 3D Viewer software are held exclusively by Ifremer The software is protected by under the terms of French law and also International Conventions 3 Instructions for downloading the viewer The 3D viewer is freely available for general use provided the user has registered in Geo Seas portal fProductosection and has accepted the conditions of use To obtain the viewer go to http www geo seas eu Select Producto Select Digital Terrain Model and 3D viewing softwareo GS_WP11_D11 5B GEO SEAS_ 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 7 Overview Metadata Data access Standards amp Software Meetings Promotion Partners ae NY Pan European infrastrueture for management of marineand ocean GEOLOGICAL AND GEOPHYSICAL DATA Products Home gt Products News DTM and 3D Viewer Development and demonstration of a Digital International Conference i elena toe eaten ener k 9 10 October 2012 Terrain Model and 3D viewing software PROGRAMME and FINAL ANNOUNCEMENT now Following the user consultation Geo Seas undertook developments for available Porcupine Borehole Seabed habitat e Definition of the characteristics of bathymetric grids digital terrain Geo Seas International mapping models as required by end users workshop 9 amp 10 stan
7. ave execution rights set them with chmod x 1 2 4 fr ifremer 3dviewer gui product MaCOSxwCOC6a KOO 64 71p ls2s4 fr ifremer 3dviewer gui product macosx cocoa x86 64 Viewer3D app Contents MacOS Viewer3D GS_WP11_D11 5B GEO SEAS_ 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 c Linux e Download the VIEWER software file 1 2 4 fr ifremer 3dviewer gul product linux gtk x86_64 zip e Create a Viewer directory e Extract the zip file into this directory e Run the Viewer command 1 2 4 fr ifremer 3dviewer gui product linux gtk x86 64 Viewer3D If you do not have the execution rights set them with chmod x Viewer3D The main viewer window should now be visible NasaWorldWind s cache for non networked computers NasaWorldWind software is used as a 3D Earth viewer VIEWERG GeoView For disconnected computers a cached version is available as Earth zip which should be copied into the following directory according to your operating system e on Windows C ProgramData WorldWindData e on MacOS Library Caches WorldWindData e on Linux SHOME var cache WorldWindData or var cache WorldWindData When unzipped the Earth zip you should includea directory called SHOME var cache WorldWindData Earth var cache WorldWindData Earth ofr Library Caches WorldWindData Earth GS_WP11_D11 5B GEO SEAS_ 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Vers
8. dardisation e Specification of procedures for combining different data sources and October 2012 SRE A RRO AOE ROSSA features in a target digital terrain model DTM Development of a pilot DTM as a case study in order to evaluate the ie See cee oe feasibility of generating such grids and services in accordance with bat iae International Geological end user requirements whilst taking into account the constraints Congress resulting from the use of multiple datasets from a variety of data sources the data being made available by Geo Seas data centres Project Review successful The analysis has resulted in a document with a list and definitions of More news DTM products with guidelines for description and representation based on user requirements This provides the specifications for the generation of prototype bathymetric digital terrain models DTMs and 2D and 3D tools for viewing the DTMs A 3D visualisation tool 3D Viewer based on the existing open source NASA World Wind JSK application has been developed This software is freely available after registration and allows the visualisation of Digital Terrain Models DTM in the existing CARAIBES NetCDF format and Web Map Service WMS which are plugged into a virtual globe e Register and Download the 3D DTM Viewer software e Manual of 3D DIM Viewer A case study has been developed to validate the process for the production of a complex DTM Data have been made available x y z for a
9. ecihaitan eee conditions Thereafter you will receive an email confirmation with a mapping personal download URL standardisation i or PES ENON RHI ESASINA ESN Organisation as International oo 197 A A op 9 amp 10 Contact person Address Zipcode Congress a Project Review successful seni ooo More news Telephone contact D E mail contact License agreement g x Geo Seas 3D Viewer Software user license Presentation of the Software The Geo Seas 3D Viewer Software is a geographical 3D Viewer providing an innovative and high performance 3D viewer for data such as DTM and WMS plugged ina virtual globe The Geo Seas 3D Viewer is provided for the demonstration of viewing services of OTM built according to the proposed Geo Seas methodology Access to the software Figure 3 Downloading request form 4 Viewer installation procedures 4 1 Prerequisites The Geo Seas 3D DTM viewer is visual and graphic software which relies on the hardware capabilities of the user computer for optimal performance Hardware issues may cause the application to encounter problems when integrating DIM files or at times the rendering may not be optimal data quantification for example These effects are most likely to occur if the machine has an old or outdated Graphic Process Unit recommended configuration 2007 or more recent Nvidia or ATI cards or the driver has not been updated The present version
10. ext wizard Once this step is complete go back into runlevel 5 init 5 You will see the NVIDIA splash which indicates that the installation has completed correctly but to confirm this open the NVIDIA control panel and make sure the driver is working correctly 4 4 Software installation The current version of the software is designed for a 64 bit system Please check your system before attempting to install the viewer as it will not work properly on 32 bit operating systems The installation procedure installs the following elements in the directory that has been selected during the installation process e Executable file e Uninstallation item e Libs directory e The Geo Seas Viewer executable To install the software follow the instructions below according to your operating system a Windows e First check that you have full administrator rights on your computer e Download and run the VIEWER software installer 3DViewerSetup 1 2 4 The automatic install wizard will guide you through the required steps It is recommended NOT to change the default installation folder directory that the wizard suggests as this can cause problems later e The VIEWER software icon will be placed on the desktop Double click this icon to start the application b MacOS e Download the file 1 2 4 fr ifremer 3dviewer gui product macosx cocoa x86_64 Zip e Unzip the file and double click on the directory you have unzipped If you do not h
11. first install all the latest system updates using yum update Download the NVIDIA driver at Www nvidia com Drivers To identify which NVIDIA chip set is used on your PC use the Ispci command The Nouveau driver which ships with CentOS is enabled by default It is this driver that allows the high resolution start up screen to render correctly If you require the Nvidia driver you will need to remove this driver first This can be accomplished in several ways The quickest and simplest method is to add a small entry to the kernel line in the GRUB boot grub menu 1st file Just append rdblacklist nouveau and the next time your kernel boots it will display the old low resolution Plymouth three color bar splash with no Nouveau graphics The second more permanent option is to blacklist the module using the etc modprobe d blacklist conf file Once the system boots verify that the driver is not loaded using the command sbin lsmod grep nouveau Next drop to the text only console because the driver cannot install when the graphics drivers are in use To do this switch into runlevel 3 init 3 Login as root and locate the downloaded NVIDIA driver on your hard disk Make the file executable and then run tt chmod x lt Nvidia file gt run lt Nvidia file gt run GS_WP11_D11 5B GEO SEAS_ 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 Follow the prompts provided by the NVIDIA installer t
12. ion 0 5 4 5 Uninstall procedure To remove the 3D viewer from your computer you will need to follow the following procedure according to your operating system e Windows Users should click on the rmuninstalldicon which is available in the VIEWER program group e MacOS Delete the directory 1 2 4 fr ifremer 3dviewer gui product macosx cocoa x86 64 e Linux Delete the VIEWER software directory 4 6 Helpdesk In the event that problems are experienced during the installation or use of the 3D viewer then contact the Help Desk by sending an email to globe assistance ifremer fr For further information on the Geo Seas project and the DIM and format contact Geo Seas on http www geo seas eu GS_WP11_D11 5B GEO SEAS_ 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 Annex A References 1 NASA WORLD WIND Copyright 2001 United States Government as represented by the Administrator of the National Aeronautics and Space Administration All rights reserved http ouilds worldwind arc nasa gov 2 J M Augustin 2012 Sonar Scope 3D viewer software tools for the processing and display of oceanographic data from acoustic sensors Sea Tech Week Conference Brest 2012 Annex B Figures and table Figure 1 Start page of the Geo Seas DTM 3D VieWET cccccsseeeeeeeeeeeeeeeees 5 Figure 2 Downloading page of the Geo Seas portal cceeeeeeeeeeeeeeeeeeeaeeees
13. mitted date Month 38 Month 38 Comments History License download 31 October 2012 and installation of the 3D viewer 1 2 4 Amendments and G Sutton UCC updates Addition of 0 4 29 November 2012 executive summary E Moussat Adding missing references G Quemener E Moussat Ifremer Amendments for Java version and 31 January 2013 miscellaneous updates Editing E Moussat H Glaves Dissemination level PU Public GS_WP11_D11 5B GEO SEAS 3DViewer_v124_ Installation Manual v0 5 Glaves new i Status FINAL Version 0 5 Confidential for project partners and the European Commission only SS Executive Summary This document comprises the primary documentation for the installation and use of the 3D viewer software package developed for viewing the Geo Seas Digital Terrain Model DTM data sets produced according to the Geo Seas methodology described in D11 4 The document is divided into five sections covering e An introduction to the viewer software including it purpose functionality derivation and key features e Licensing of the contents terms and conditions of the 3D viewer end user license that governs the use of the viewer and intellectual property issues e Detailed instructions explaining how to download a copy of the viewer from the Geo Seas portal e Detailed instructions explaining how to install the viewer including system requirements and known issues and solutions
14. n area where data sets of various resolutions and origins exist for the southern Celtic Sea Irish and French data sets These data have been gridded using the specification outlined above and then merged in order to prove the feasibility of the process for the development of complex digital terrain models using gridded x y z data at varying resolutions e Download 2 DTM files in the NetCDF Geo Seas transport format for the 3D Viewer Each file contains a series of layers among which a depth layer Figure 2 Downloading page of the Geo Seas portal Download and read the documentation and files which include e the installation manual e the end user manual e DTM files in the appropriate format for testing GS_WP11_D11 5B GEO SEAS 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 oe to iene gt B F a 3 j L ja R B p You must then register in order to download the software gt dsS Overview Metadata Dataaccess Standards amp Software Meetings Promotion Partners a J i a ae eae ed alicia ae ea az es e a o ies oe i A Pan European infrastruetirce for management of marine safid ocean GEOLOGICAL AND GEOPHYSICAL DATA Products Home gt Products gt DTM and 3D Viewer Request for downloading the Geo Seas 3 D DTM Viewer and FINA INCEMENT now Menen You are requested to complete the form and to agree with the license Seah
15. o Seas_ standard methodology GS_WP11_D11 5B GEO SEAS_ 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 2 2 Access to the software The Geo Seas 3D Viewer Software is a freeware In order to access it users must register and accept the terms and conditions of the Geo Seas 3D viewer licence for downloading the software from the Geo Seas portal http www geo seas eu Downloading and using the software indicates user acceptance of the terms and conditions of use 2 3 Terms and conditions of use 1 The licensor grants to the licensee a non exclusive and non transferable licence to retrieve and use the Geo Seas 3D viewer software from the Geo Seas service in accordance with this licence This licence is not valid for commercial applications 2 Retrieval by electronic download of the Geo Seas 3D Viewer Software is free of charge unless otherwise stipulated 3 The Geo Seas 3D viewer software is provided without warranty of any kind Geo Seas and Ifremer do not accept any liability for the use of the software damage for loss of business profits interruption of business activity loss of business information or other monetary loss 4 Users must acknowledge Ifremer in all publications showing results obtained using the software or communications based on these results Users shall mention rGeo Seas 3D Viewer Softwarenwritten in a readable manner 5 Data users should not provide the Geo Seas 3D
16. rst published by the Open Geospatial Consortium World Wind NASA World Wind is a graphically rich 3D virtual globe It combines NASA imagery generated from satellites that have produced Blue Marble Landsat 7 SRTM MODIS and more Website http worldwind arc nasa gov java Three dimensions GS_WP11_D11 5B GEO SEAS_ 3DViewer_v124 Installation Manual v0 5 Glaves new
17. sere tease nerticsei veprcesge gapetepineoaiereapeniiassinepdsspenagmachiecsiesbagestublpasdaapenepeeeb eerste 15 GS_WP11_D11 5B GEO SEAS 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 1 Introduction The Geo Seas 3D Viewer is an innovative and high performance tool for viewing interacting with and manipulating data types such as Digital Terrain Models DTM and web map service WMS which are plugged into a virtual globe It has been designed for the purposes of e In depth evaluation of data set content to assess the quality of a DIM resolution coverage quality using basic GIS functionalities e Combining data layers such as sample location sediment properties etc using WMS from other data sources to assist end users searching for data or analyzing interactions between processes on the seabed or between the water column and topographic features e Demonstrating the concept of making this type of service available to end users without them requiring specific skills to install or to use the service The viewer is based on NasaWorldWind 1 and is a derivative of the SonarScope 3DViewer http www ifremer fr fleet acous_sism Ssonarscope SSC3D html which is primarily aimed at displaying DIM and water column data such as bubbles and other features detected by SonarScope algorithms 2 The 3D viewer is a freeware module maintained as a component of Ifremer Global Oceanographic Bathymetry E
18. talled on your computer follow these steps Open Start menu Select Accessories Command prompt Enter java version o If the result is not java version 1 6 xxxx or greater uninstall all existing versions of java and install 1 6 version as follows Download the JRE 6 64 bits at http www oracle com technetwork java javase downloads jre6downloads 1902815 html Install the jre 6u39 windows x64 exe file Check the version again The version should be greater than or equal to 1 6 b Mac OS o Make sure that the version of java on your computer is 1 6 or above GS_WP11_D11 5B GEO SEAS_ 3DViewer_v124_ Installation Manual v0 5 Glaves new Status FINAL Version 0 5 o To check the version of Java on your computer On a terminal enter java version o Ifthe result is not java version 1 6 xxxx or greater uninstall all existing versions of java and install 1 6 version as follows Download the JRE 6 64 bits JavaForOSX dmg at http support apple com kb DL1572 Install the JavaForOSX dmg c Linux validated with CentOS 6 3 o Make sure that the java version on your computer is 1 6 above o To check the version of Java installed on your computer Enter the following command java version o If the result is not java version 1 6 xxxx install version 1 6 following these steps Download package jre 6u39 linux x64 rom bin on Oracle website http www oracle com technet
19. un on another Java application can run on any Java virtual machine JVM regardless of computer architecture Java is one of the most popular programming languages in use particularly for client server web applications Java Runtime Environment This is the Oracle s Java execution environment National Agriculture Imagery Program National Aeronautics and Space Administration Nvidia is an American global technology company best known for its graphics processing NVIDIA units GPUs Drivers can be downloaded from http www nvidia com Download index aspx lang en us Network Common Data Form set of software libraries and self describing machine independent data formats that support the creation access and sharing of array NetCDF oriented scientific data The project homepage is hosted by the Unidata program at the University Corporation for Atmospheric Research UCAR http www unidata ucar edu software netcdf Random Access Monitoring SRTM Shuttle Radar Topography Mission World Geodetic System revision dating from 1984 Global Reference system using latitude and longitude as coordinates equivalent to EPSG projection 4326 GS_WP11_D11 5B GEO SEAS 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 Web Map Service standard protocol for serving georeferenced map images over the Internet that are generated by a map server using data from a GIS database The specification was developed and fi
20. work java javase downloads jre6downloads 1902815 html Execute the file as root user Then execute the 2 following commands alternatives install usr bin java java usr java jre1 6 0_39 bin java 120 alternatives config java 2 programs which provide java should appear in the following result Selection Command 1 usr lib jvm jre 1 4 2 gcj bin java 2 usr lib jvm jre 1 6 0 sun bin java Enter to keep the current selection or enter the selection number 2 to select the sun version Check again java version You must have java version 1 6 0_ xx Java TM SE Runtime Environment build 1 6 0_xx yyy Java HotSpot TM 64 Bit Server VM build xx y zzz mixed mode where xx yyy zzz are subject to changes upon last revisions 4 3 GPU drivers It is important that your GPU driver is up to date Using an old version driver can lead to a JVM crash as soon as VIEWER tries to display any OpenGL view To update your driver GS_WP11_D11 5B GEO SEAS_ 3DViewer_v124 Installation Manual _ v0 5 Glaves new Status FINAL Version 0 5 NVIDIA driver for Windows Visit the site htto www nvidia com Download index aspx lang en us and update your driver ATI driver for Windows Visit the site http support amd com us Pages AMDSupportHub aspx and update your driver NVIDIA driver for Linux It is important to fully update your system before proceeding with the driver installation Therefore
21. xplorer GLOBE software http flotte ifremer fr fleet Presentation of the fleet On board software Figure 1 below shows the appearance of the main pane of the graphic user interface GUI E 3D Viewer File View Options Help gt Layer Explorer Wrx M2ro V Background F Shape Parametres 2000 K m C Altitude 19 070 km Off Globe Figure 1 Start page of the Geo Seas DTM 3D Viewer GS_WP11_D11 5B GEO SEAS 3DViewer_v124 Installation Manual v0 5 Glaves new Status FINAL Version 0 5 Key features of the viewer are e DTM elevation and resolution are correctly and independently rendered in contrast with other methods which consist of a simple image draped over the software own DTM e g as is the case in Google Earth export Public Version e Vertical exaggeration can be adjusted up to a maximum of 20 times which is expected to be sufficient for most sea floor representations e The variety of different geo referenced scientific data themes oceanography geology etc that can be downloaded from WMS servers which are viewable e The Geo Seas 3D viewer has been specifically designed to allow quick and easy 3D viewing of DIMs made available in the NetCDF transport format which has been specified and adopted by the Geo Seas infrastructure http www geo seas eu The viewer also uses the DTM source data layers produced with the Geo Seas standard procedure This enables users
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