The MCHP GIS MANUAL - ArcCatalog: Basic Uses

         

Introduction   Contents


 USING ArcGIS: 
   
1. Basic Use of ArcMap 
   Creating a Map 
   Data Frame Tools
   Data Frame Properties
   Tables and Charts
   Layout View
   Saving Map Documents
   Activity 1

2. Map Projections
   Projections
   UTM
   Datums
  
3. ArcCatalog 
   Basic Uses    
   
4. ArcToolBox 
   Basic Uses    
   
5. Adding Spatial Information
   Georeferencing
   Adding Non-Spatial Data
   Dbase Files
   Activity 2

6. Selecting Data
   By Graphics
   By Location
   Activity 3

7.  Exporting Maps
   Exporting
   Activity 4
  
 
FURTHER INFORMATION:
   General Information
   Data Sets

ArcCatalog: BASIC USES

Using ArcCatalog

ArcCatalog is used for managing geographic data. You can copy, move and delete data. There are options to preview existing files and attributes. Built into ArcCatalog is the ability to create and update basic metadata for geographic files. This is also the place where you create new data files. The ArcCatalog application includes a catalog tree display, similar to windows explorer, preview window and several tool bars. In the catalog tree each data type (geodatabase, coverages, shape files, CAD files, rasters, and TINs) has its own unique icon.

Preview and Metadata

The catalog tree shows the available data sources both locally, and remotely. When looking at folders on the local system you must attach or connect to the folder to make it available as a local data source – in the way the ‘Add Data’ option in ArcGIS is different than the usual Windows open dialog box.

The Contents window will allow users to select file properties, export, create new files, new directories, and geodatabases. If both ArcMap and ArcCatalog are open, data sources can be dropped from ArcCatalog into ArcMap.

There is also a preview option that will allow you to see the geography and attribute tables.

Metadata for each file can be easily created and updated for every geographic data source from within ArcCatalog. A standardized template for editing and updating metadata is provided and when files are moved within ArcCatalog the Metadata is transferred with the data. Meta data is saved as XML files in the same directory as the data source or within the associated GeoDatabase. Meta data files can also be exported for use elsewhere.

GeoDatabases

A geodatabase is a relational database that contains spatial and non-spatial objects. The geodatabase supports the storage and management of geographic information in standard database management system tables (ESRI Press). A complete coverage of GeoDatabases is beyond this workshop but there has been another workshop developed at MCHP for working with GeoDatabases.

There are two broad types of GeoDatabase available to ArcGIS. At MCHP, only the personal GeoDatabases are available at this time.

  • Personal
    • MS Access format (Microsoft Jet Engine)
    • Multiple users but only one editor at a time
    • Suitable for small workgroups
    • Best performance with fewer than 250,000 objects
    • No Raster data
  • Multi-User (ArcSDE application server)
    • RDBM system such as Oracle or MS SQL server
    • Raster Images
    • Geocoding services

Internet Servers

ArcGIS can query and use geographic data available on the internet. Many of these services cost money but there are a few that are free and have some very useful base information. In Canada the most common is www.geographynetwork.ca.

Once attached to an internet service you can add the geography information off of the net (from image services or feature services) or make local copies of some files (only from feature services).

Introduction
Map Projections
NEXT
ArcToolbox: Basic Uses

Contact: Charles Burchill       Telephone: (204) 789-3429

Manitoba Centre for Health Policy
Department of Community Health Sciences, University of Manitoba
4th floor Brodie Centre
408 - 727 McDermot Avenue
Winnipeg, Manitoba R3E 3P5       Fax: (204) 789-3910
Last modified on Friday, 25-Aug-2006 08:06:00 CDT