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Discover Integrated GIS for the Geosciences Users’ Guide Encom Technology Pty L

Discover Integrated GIS for the Geosciences Users’ Guide Encom Technology Pty Ltd Leaders in Exploration Software and Services General Information Discover 4.0 is developed and supported by Encom Technology Pty Ltd. Sydney Office Sydney Office Level 2, 118 Alfred St, Milsons Point, New South Wales 2061, Australia PO Box 422, Milsons Point, New South Wales 1565, Australia Tel +61 2 9957 4117 Fax +61 2 9922 6141 Gosford Office Gosford Office Suite 5, 451 Pacific Hwy, North Gosford, New South Wales, 2250, Australia Tel: +61 2 4325 7807 Fax: +61 2 4325 7807 Perth Office Perth Office Level 1, 43 Ventnor Ave, West Perth, Western Australia 6005, Australia PO Box 1572, West Perth, Western Australia 6872, Australia Tel +61 8 9321 1788 Fax +61 8 9321 1799 World Wide Web World Wide Web www.encom.com.au Email Email discover_support@encom.com.au Discover Release History Discover Release History Version 1.0 December 1994 Version 1.1 February 1995 Version 1.2 September 1995 Version 2.0 August 1996 Version 2.1 November 1997 Version 3.0 February 1999 Version 4.0 June 2001 Discover 4.0 requires Discover 4.0 requires MapInfo Professional 4.2 or later with Windows 95/98 or Windows NT/2000 Some advanced features of Discover 4.0 require MapInfo Professional 5.5 or later. © Copyright 2001, Encom Technology Pty Ltd Table of Contents i Table of Contents Table of Contents i 1 Introduction 1 Introducing Discover 4.0 ........................................................................1 What’s New in Discover 4.0...................................................................1 About this Users’ Guide..........................................................................3 Reference Manual and On-line Help .......................................................3 Conventions Used in this Manual............................................................7 Obtaining Help .......................................................................................8 System Requirements .............................................................................8 Discover User Interface ..........................................................................8 2 Configuration 11 Discover Setup From a CD-ROM.........................................................11 Discover Setup From the Web ..............................................................11 Installation of Discover.........................................................................11 About Discover and AutoLoad..............................................................13 Configuring Discover ...........................................................................13 Running Discover on a Network...........................................................14 3 Enhanced Layer Control 15 Enabling and Disabling the ELC...........................................................15 Introducing the ELC .............................................................................16 ELC Options.........................................................................................17 Layer Controls......................................................................................18 Assigning Layers to Groups..................................................................21 Creating Groups and Adding Layers.....................................................23 4 Map Making 27 Making a Map with Scaled Output........................................................27 Scaled Frames and Titleblocks..............................................................30 Generating a Legend for a Geology Map...............................................30 Adding Geological Annotation to Linework..........................................30 Adding Vector Fill Patterns to Polygons ...............................................31 Attributing and Colouring Map Objects ................................................32 Colouring Maps from a Look-up Table.................................................32 Map Labelling Tools.............................................................................33 5 Data Processing and Visualization 35 ii Discover Users’ Guide Linked Document Display.................................................................... 35 Displaying Attribute Data in Graphs .................................................... 36 Displaying Structural Measurements.................................................... 37 Coordinate and Grid Functions............................................................. 37 Transforming Geochemical Data.......................................................... 38 Data Query Tools................................................................................. 38 6 Object Editing 39 Creating Objects from Coordinate Descriptions.................................... 39 Attributing Map Objects whilst Digitizing............................................ 40 Modifying Polylines............................................................................. 40 Building Polygons ............................................................................... 41 7 Drillhole Display 43 Overview............................................................................................. 43 Displaying Drillhole Data .................................................................... 44 Data Formats and Data Sources............................................................ 44 Displaying a Section or Plan................................................................ 47 Displaying Downhole Data.................................................................. 47 Viewing Sections in the Layout Window.............................................. 49 Drillhole Log Display.......................................................................... 50 Calculating Sectional Resources........................................................... 51 Data Validation.................................................................................... 51 Data Compositing................................................................................ 52 8 Surface Creation and Analysis 53 Overview............................................................................................. 53 What is a Surface Grid......................................................................... 54 Configuring Grid File Formats............................................................. 55 Creating a Gridded Surface.................................................................. 56 Contouring a Surface ........................................................................... 57 Surface Profile over a Grid or Contour Plan......................................... 58 Querying Grids .................................................................................... 59 Merging and Clipping Grids................................................................. 60 Changing the Appearance of Grids....................................................... 60 Registering Grid Files Created Externally ............................................ 61 Points to Regions (Voronoi Polygons).................................................. 61 9 Miscellaneous Tools 63 Table Utilities ...................................................................................... 64 Metadata Tools .................................................................................... 64 Table of Contents iii 10 Map Making Tutorial 67 11 Dataset Building Tutorial 77 12 Create and Analyse Surfaces Tutorial 87 13 3D Display of Grid Data Tutorial 95 An Exercise in Grid Display and 3D Map Creation...............................95 GeoTiff Registration and 3D Map Display............................................99 14 Drillhole Display Tutorial 103 Preparing Data prior to Viewing Drillholes .........................................104 Creating Sections................................................................................106 Index 115 Introduction 1 1 Introduction Introducing Discover 4.0 Discover version 4.0 is an extension to MapInfo Professional specifically developed for geoscientists by Encom Technology. Discover 4.0 runs with MapInfo® Professional version 4.2 or later on Windows® 95/98 and Windows® NT/2000. Building on the many powerful Geographic Information System (GIS) features of MapInfo, Discover converts MapInfo into a sophisticated and easy to use tool for managing, manipulating and displaying exploration datasets. Discover gives users the ability to process and view data in ways that previously required a number of software packages. A geologist in the field, an exploration manager in head office or a draftsperson in a regional office can use Discover to track tenement activity, contour point data, view drill holes in plan and section, analyze geochemical data, facilitate map creation, produce scaled hard copy output with ease, and more. Discover 4.0 provides new and improved functionality in a number of key areas and incorporates a significant number of changes requested by existing Discover users. What’s New in Discover 4.0 Enhanced Layer Control A powerful new feature of Discover 4.0 is the Enhanced Layer Control which allows you to control multiple map windows at the same time. The drawing order of layers can be changed by ‘dragging and dropping’ one or multiple layers. The Enhanced Layer Control is a ‘persistent’ control. Once activated, it remains visible on your desktop and you can move and resize it as you please. To assist with you organizing your map windows, layers can be assigned aliases and can be grouped independently of their drawing order. 2 Discover Users’ Guide Map Making and Other Tools • Long file naming has been implemented for map and layout lists. • Text box placement in the Layout Window has been implemented. Various improvements to the title block and legend have been made. • GraphMap can now display stereogram cyclographic traces for large dip values. Surface Creation and Analysis • Discover has been extended to read, write and display the four most commonly used grid formats. Support is now provided for: BIL (Band InterLeaved), ER Mapper, Geosoft and MapInfo. • Note: ER Mapper grids can now be registered using ERS header file information. • The MapInfo 3D surface rendering function can now be used with all supported grid formats. Displays can incorporate vector, image and map drapes. • Contouring is available for all grid formats. • Enhancements have been made for grid arithmetic (add, subtract grids, calculate slope, aspect). • Surface triangulation can now support in excess of 25,000 input points. • Support is now provided for grid registration of ‘ChrisDBF’-generated ER Mapper files. Table Utilities • Individual tables can be checked and modified in a workspace using the Workspace Editor. • The Alter Map Bounds utility now asks for confirmation before permanently removing data. General • An improved installation procedure includes support for Windows 2000. Introduction 3 • Discover is now compatible with MapInfo Professional version 4.2 through 6.5 (released mid-2001). • Tutorials have been updated. • On-line help has been updated and redesigned. About this Users’ Guide This Users’ Guide describes new and existing features in this version of Discover and supersedes earlier Discover manuals. The Users’ Guide contains an overview of functions in Discover together with a set of tutorials that demonstrate the major features of Discover. This Users’ Guide applies to Discover 4.0 only. Encom Technology has taken care to ensure that the information presented here is accurate but reserves the right to alter Discover at any time. This is not a MapInfo manual and knowledge of MapInfo Professional is required for Discover to be used to its best advantage. We recommend that you refer to the MapInfo Professional Reference and MapInfo Professional Users’ Guide for further information on using MapInfo. Reference Manual and On- line Help For more detailed information on specific aspects of Discover, you are encouraged to refer to the Discover on-line help and the Discover Reference Manual, both accessed from the MapInfo Help menu. Using the Electronic Reference Manual The Discover Reference Manual is in the form of PDF files (Portable Document Files) which can be viewed on-screen, or once displayed, can be printed in part or in full. To view or print the files, a software program called Adobe Acrobat Reader is provided. The installation of this software (as well as the Reference Manual Files) is an option provided during the installation process of Discover. The Acrobat Reader software is written and supplied by Adobe Systems, Inc. Although supplied with the Discover software, Acrobat Reader is also available (at no cost) from the Adobe Internet web site (www.adobe.com). In the event that the software or PDF files are not installed with Discover, they can be accessed directly from the CD-ROM as PDF files. 4 Discover Users’ Guide Using Adobe Acrobat Reader Execute Acrobat Reader with any of the following procedures: 1. Select the Acrobat Reader program from the Windows Start button and choose the Programs>Adobe Acrobat item. 2. Create a desktop icon of the program and double click it to execute. This option is best achieved by using Windows Explorer, navigating to the Adobe Reader program and dragging the executable file to the Desktop. For additional information on this procedure, refer to the Windows Operating Guide. 3. Windows Explorer can be used to navigate to the CD-ROM or on the hard disk if installed (see uploads/Litterature/ users-guide 4 .pdf