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School of Geography FACULTY OF ENVIRONMENT Introduction to ArcGIS 1.

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Presentation on theme: "School of Geography FACULTY OF ENVIRONMENT Introduction to ArcGIS 1."— Presentation transcript:

1 School of Geography FACULTY OF ENVIRONMENT Introduction to ArcGIS 1

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? 2

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. 3

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

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

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 6

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) 7

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 8

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

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

11 Shapefiles.shpstores the spatial or feature information.dbfdBASE file contains attribute information about the spatial features.shxstores the index of the features.sbnstores the spatial index of features.sbxalso stores information pertaining to the spatial index of features.prjcontains projection information

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

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 15

16 Different Views – Contents Tab 16

17 Preview - Geography 17

18 Preview - Table View 18

19 Metadata View 19

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

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

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 22

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 23

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 24

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. 25

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 26

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 27

28 Metadata Editor 28

29 More Information on Metadata Sample code or custom applications to automate metadata production from the ESRI Developer Network – 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. 29

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 30

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

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

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

34 Right-click: Context Menu 34

35 Tools Toolbar Zoom outZoom in PanGo to full extent Zoom out to a fixed extentZoom in to a fixed extent Go to previous extent Go to next extent Measure Clear selected features Select elementsIdentify Find Select features Go to X-Y coordinate Hyperlink 35

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

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