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Introduction to ArcGIS

Introduction to ArcGIS. Introductions. Does everyone have ArcGIS on their desktops? Who uses ArcGIS regularly? If so, what is your main use of GIS? What would you like to be able to do?. What is GIS?. Many definitions available

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Introduction to ArcGIS

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  1. Introduction to ArcGIS

  2. Introductions • Does everyone have ArcGIS on their desktops? • Who uses ArcGIS regularly? • If so, what is your main use of GIS? • What would you like to be able to do?

  3. What is GIS? • Many definitions available • System for display, storage, mapping, analysis of spatial data • Many acronyms for GIS • Geographic Information Systems • Geographic Information Science • Body of Knowledge • Geographic Information Services, etc.

  4. Arc/INFO (Unix) 1969 1982 1989 PC Arc/INFO (DOS + Windows) Jack Dangermond founds ESRI 1992 ArcView + Arc/INFO 1999 ArcGIS v.8.0 (to v8.3) 2002 ArcView 3.3 “retired product” 2004 2008 ArcGIS v.9.0 ArcGIS v.9.3 History of ArcGIS

  5. Overview of Applications ArcGIS Server ArcSDE ArcIMS ArcGIS Engine ArcObjects • ArcGIS Desktop ArcReader ArcGIS Explorer ArcGIS Mobile ArcPad

  6. Overview of ArcGIS Desktop • ArcGIS Desktop has three levels of licensing: • ArcView • Mapping + geoprocessing + data management • ArcEditor • ArcView + additional editing + additional geoprocessing • ArcInfo • ArcEditor + advanced geoprocessing + extensive database management + high-end cartography

  7. ArcGIS Desktop Components • ArcCatalog • ArcMap • ArcToolbox • Extensions • 3D Analyst, Spatial Analyst, Network Analyst, Geostatistical Analyst, Crime Analyst, ArcGIS Schematics, Business Analyst, PLTS, Data Interoperability, Tracking Analyst, ArcGIS Publisher, Survey Analyst, ArcScan (included with ArcEditor license), Maplex (included with Arcinfo license) http://www.esri.com/software/arcgis/about/desktop_extensions.html http://support.esri.com/index.cfm?fa=software.extentions

  8. Data Models - 1 • How we represent real world spatial phenomena • Two main models: • Vector • Points (single x,y coordinate) • Lines (strings of x,y coordinates) • Polygons (closed string of x,y coordinates) • Raster • A grid of (often) square-shaped cells • Individual cells together are used to create a layer of points, lines and areas

  9. Data Models - 2 • Other models: • Surfaces for 3D visualisation • Networks (geometric, transportation)

  10. ESRI Data Formats • Coverages (vector) and GRIDs (raster) • Consists of two folders: • name of coverage or grid • INFO directory • Shapefiles • Geodatabases Examples of coverages in Windows File Explorer

  11. Shapefiles

  12. Geodatabases • Core ArcGIS data model • A comprehensive model for representing and managing geographic data • Personal Geodatabase • Single user editing / multiple readers • Stored in MS Access • Size limit of 2 GB • File Geodatabase • Single user editing / multiple readers • 1 TB per table • Reduced storage requirements • ArcSDE Geodatabase • Stored in an Enterprise DBMS • Supports multiuser editing via versioning • Requires ArcEditor or ArcInfo to edit ArcGIS Personal Geodatabase File Geodatabase ArcSDE Geodatabase Oracle SQL Server DB2 Informix PostgreSQL ArcSDE

  13. ArcCatalog • these formats are comprised of many files so you need a GIS data management system

  14. The ArcCatalog Interface 1 Title bar 4 Standard toolbar 2 Location toolbar 5 Dockable toolbars 3 Metadata toolbar 6 Catalog Tree (navigation) 7 Geography Preview Mode

  15. Catalog Tree • Icons identify data types • Right-click of a context menus • Supports drag, drop, copy, paste • Displays folder connections • Displays other connections • ArcSDE databases • Web servers (internal, ESRI) Context menu

  16. Different Views – Contents Tab

  17. Preview - Geography

  18. Preview - Table View

  19. Metadata View

  20. Management tasks • Copy, paste, delete, rename data • Move to other locations • Create new objects • Connect to folders

  21. Searching for Data • Edit  Search • can search for geography or metadata • can search using different parameters • Name + physical location • Geography • Date

  22. ArcCatalog Options • Tools  Options • Manage ArcCatalog’s content and behaviour • Add new file types (e.g. ppt) • Set font characteristics for tables • Set geoprocessing environment • Set metadata defaults

  23. Metadata • Descriptive information about data • Content • Quality • Condition • Origin • Other characteristics • But do you really need it? • All GIS resources need metadata • Spatial data • Non-spatial data

  24. Metadata in ArcCatalog • one-stop shop for all your metadata needs • can create metadata for anything visible in the catalog • ArcCatalog has the tools for working with it • ToolsOptions Metadata tab • Metadata toolbar for working with metadata

  25. Metadata Components • Documentation: metadata elements the user can edit • Abstract • Purpose • Use constraints • Etc. • Properties: elements that update automatically • Names and types of attributes • Coordinate system information • Bounding coordinates • Etc.

  26. Metadata Standards • GEMINI v.2.1 is the UK metadata standard (Oct 2007) • based on ISO19115 • to meet the requirements for metadata of the EU INSPIRE Directive http://www.gigateway.org.uk/metadata/standards.html

  27. Create and update metadata • Automatically • Created first time an item’s metadata is viewed • Updated whenever metadata is viewed in metadata tab • Edit metadata button • Manually • Tools  Options  Metadata tab • Create / Update metadata button • Choose your stylesheet here

  28. Metadata Editor

  29. More Information on Metadata • Sample code or custom applications to automate metadata production from the ESRI Developer Network • http://edn.esri.com – find resources for ArcGIS 9.2 and prior and in Code Exchange, enter “metadata”) • Metadata SpellChecker • Edit Metadata in ArcMap • Create Metadata for All in Folder • Metadata Quick Editor (executable file) • Template Exporter • Etc.

  30. In Summary • ArcCatalog allows you to: • Browse, manage and find spatial data • Record, view and manage metadata • Search for GIS data on local drives, networks and the Web • Define, import and export geodatabases and other datasets • Create and manage the schemas of geodatabases • Administer ArcSDE geodatabases • Administer an ArcGIS server

  31. An Introduction to ArcCatalog • Hands-on Exercise #1

  32. The ArcMap Interface 4 Standard Toolbar 3 Main Menu Toolbar 5 Tools Toolbar 1 Table of Contents 2 Map Display 6 Drawing Toolbar

  33. Adding Layers • Use the Add Data button • Search for data in ArcCatalog and slide the data into ArcMap

  34. Right-click: Context Menu

  35. Tools Toolbar Zoom in Zoom out Zoom in to a fixed extent Zoom out to a fixed extent Pan Go to full extent Go to previous extent Go to next extent Select features Clear selected features Select elements Identify Find Go to X-Y coordinate Measure Hyperlink

  36. An Introduction to ArcMap • Hands-on Exercise #2

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