Collapse all Welcome to ArcGIS Desktop Help Copyright information Acknowledgements GIS Dictionary

What's new in ArcGIS

Getting started

Map projections and coordinate systems

Getting started with map projections An overview of map projections Projection basics the GIS professional needs to know About the geoid, ellipsoid, spheroid and datum, and how they are related Identifying an unknown coordinate system Converting Degrees Minutes Seconds values to Decimal Degree values Geographic coordinate systems About geographic coordinate systems Spheroids and spheres Datums North American datums What happens to features at +/-180 (dateline)? GCS_Assumed_Geographic_1 Projected coordinate systems Geographic transformations Geographic transformation methods Equation-based methods Grid-based methods Supported map projections Vertical coordinate systems

Mapping and visualization

Editing and data compilation

An overview of editing and data compilation Getting started with editing About editing your geodatabase in ArcMap Adding the data you want to edit Editing ArcSDE geodatabases The structure of vector datasets Adding the editing toolbars Starting and stopping an edit session The sketch construction tools Using the snapping environment About setting distance units Setting direction measuring systems and units Editing features that have z-values Shortcut keys for editing in ArcMap Frequently asked questions about editing Common editing tasks Common point editing tasks Common line editing tasks Common polygon editing tasks Common annotation editing tasks Common multipoint editing tasks Editing data in a different projection Creating new features Editing existing features Editing attributes Editing attributes Copying and pasting attributes Deleting attributes Editing with default values and attribute domains About updating data using SQL Editing annotation Editing dimension features Using a digitizer About digitizing An overview of preparing to digitize Registering the paper map Digitizing features on a paper map Spatial adjustment Editing topology Editing relationships and related objects COGO An overview of COGO Common COGO workflows About COGO descriptions Adding COGO fields to a feature class Traverse file format Offset points file format Applying a ground to grid correction Reporting COGO descriptions Using the Curve Calculator command Using the COGO Area command Splitting features into COGO lines

Tables and attribute information

Geoprocessing

Geoprocessing tool reference

Geodatabases and ArcSDE

Data management with ArcCatalog

Image and raster data management

Data support in ArcGIS

Extensions

Geocoding and address management

Linear referencing

Network analysis

Using the Network Analyst extension Analyzing geometric networks

Mobile GIS

Interoperability and standards support

Customizing and developing with ArcGIS

Guide to data that comes with ArcGIS

Licensing and desktop administration

GIS Servers and services