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Welcome to ArcGIS Desktop Help
Copyright information
GIS Dictionary
What's new in ArcGIS Desktop 9.1
What was new in ArcGIS Desktop 9.0
Getting started
Desktop Administration
ArcCatalog
ArcMap
ArcReader
Geoprocessing in the ArcGIS environment
Geoprocessing tool reference
Building a geodatabase
Editing in ArcMap
Getting started with editing in ArcMap
Creating new features
Using a digitizer
Creating features from other features
Editing existing features

Splitting lines and polygons

Trimming lines

Extending lines

Flipping lines

Dividing lines with points

Reshaping lines and polygons using a sketch

Adding and deleting vertices

Moving vertices

Changing the properties of a sketch

Scaling features

Clipping features

Stretching a feature's geometry proportionately

Smoothing and generalizing features
Editing topology

About topology

Topology basics

Topology rules

Topology error fixes

Basic topology tasks

Creating a map topology

Editing features in a topology

Editing shared geometry

Topology validation

Topology errors and exceptions

Correcting topology errors

Finding features with shared topology elements

Clearing selected topology elements

Changing the symbology for topology features

Making new features with topology tools
Editing attributes

Viewing attributes

Adding attributes

Deleting attributes

Modifying attributes

Copying and pasting attributes

Editing with default values and attribute domains

About updating data using SQL
Spatial adjustment
Editing geometric networks

About editing network features

Connecting and disconnecting network features

Editing network features

Repairing network connectivity
Editing relationships and related objects

About editing relationships and related objects

Editing relationships and related objects
Editing annotation
Editing dimension features
Geocoding
Linear referencing
Map projections
Writing geoprocessing scripts
Customizing the user interface
Migrating from ArcView GIS 3 to ArcView 9
Migrating from ArcInfo Workstation to ArcGIS Desktop
ESRI Data & Maps
Getting started with ESRI Data and Maps
Canada

Canada FSA postal centroids

Canada Highways

Canada Indian Reserves

Canada Major Cities

Canada Middle Cities

Canada Municipalities

Canada National Parks

Canada Provinces

Canada Provincial Parks

Canada Railways

Canada Regional Municipalities

Canada Telephone Area Code Boundaries

Canada Water Bodies
Europe

Europe Cities

Europe Countries

Europe Ferries

Europe Level 1 Provinces

Europe Level 2 Provinces

Europe Level 3 Provinces

Europe Major Roads

Europe Major Water

Europe NUTS 0 Demographics

Europe NUTS 1 Demographics

Europe NUTS 2 Demographics

Europe NUTS 3 Demographics

Europe Places

Europe Railroads

Europe Railroad Stations

Europe Roads

Europe Urbanized Areas

Europe Water

Germany ZIP Code Areas (one-digit)

Germany ZIP Code Areas (two-digit)

Germany ZIP Code Areas (five-digit)
Mexico

Mexico Cities

Mexico Contours

Mexico Municipalities

Mexico Railroads

Mexico Rivers and Streams

Mexico Roads

Mexico States

Mexico Urban Areas

Mexico Water Bodies
World

World Administrative Units

World Cities

World Continents

World Countries (generalized)

World Countries 1992

World Countries 2005

World CountryWatch Demographics (table)

World Country Memberships of Political Organizations (table)

World Drainage Systems

World Gazetteer

World Lakes

World Latitude and Longitude Grids

World Named Latitudes and Longitudes

World Regions

World Rivers

World Time Zones

World UTM Zones

World Wildlife Fund Marine Ecoregions

World Wildlife Fund Terrestrial Ecoregions
StreetMap USA
Image data
United States (census)
United States (hydrography)
United States (landmarks)

United States Geographic Names Information System Buildings

United States Geographic Names Information System Cemeteries

Untied States Geographic Names Information System Churches

United States Geographic Names Information System Golf Locales

United States Geographic Names Information System Hospitals

United States Geographic Names Information System Locales

United States Geographic Names Information System Populated Places

United States Geographic Names Information System Schools

United States Geographic Names Information System Summits

United States Hospitals

United States National Atlas Historic Earthquakes

United States National Atlas Volcanoes

United States Parks

United States TANA/GDT Institutions

United States TANA/GDT Large Area Landmarks

United States TANA/GDT Park Landmarks

United States TANA/GDT Recreation Areas
United States (other)
United States (transportation)

United States Highways

United States Major Highways

United States Major Roads

United States National Atlas Airports

United States National Transportation Atlas Interstate Highways

United States National Transportation Atlas Railroads

United States TANA/GDT Airports

United States TANA/GDT Transportation Terminals
Extensions
Getting more help
Help for developers