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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

What is ArcGIS Desktop?

ArcGIS geodatabase

ArcGIS geoprocessing

ArcGIS geovisualization

ArcGIS Desktop extensions

GIS data structure types

Data types supported in ArcGIS
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

About creating new features

Creating point features and vertices

Creating lines and polygons

Creating segments using angles and lengths

Creating segments using angles from existing segments

Creating segments that are circular arc curves

Creating segments by tracing features

Using the snapping environment

Creating edit sketch geometry with the Traverse tool

Traverse file format

About setting distance units

Setting direction measuring systems and units
Using a digitizer

About digitizing

An overview of preparing to digitize

Registering the paper map

Digitizing features on a paper map
Creating features from other features
Editing existing 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
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
Editing annotation

An overview of editing annotation

Creating new annotation features

Creating and editing annotation that follows features

Editing the size and position of annotation features

Editing annotation in the Attributes dialog box

Editing the appearance of annotation features

Editing feature-linked 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
Mexico
World
StreetMap USA
Image data
United States (census)
United States (hydrography)

United States Drainage Systems

United States Lakes

United States National Atlas Water Feature Areas

United States National Atlas Water Feature Lines

United States Rivers (generalized)

United States Rivers and Streams

United States Water Bodies
United States (landmarks)
United States (other)
United States (transportation)
Extensions
Getting more help
Help for developers