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Welcome to ArcGIS Desktop Help
Copyright information
GIS Dictionary
What's new in ArcGIS

What's new in ArcGIS 9.2
Migration guides
Getting started
Fundamentals of GIS data
Introducing ArcGIS Desktop
Tutorials

Tutorials

Getting Started Quickstart tutorial index

3D Analyst tutorial index

Animation in ArcMap tutorial index

ArcGIS Publisher tutorial index

ArcReader tutorial index

ArcScan tutorial index

Building a Geodatabase tutorial index

Data interoperability tutorial index

Database servers tutorial index

Editing geodatabases tutorial index

Editing GIS features tutorial index

Geocoding tutorial index

Geoprocessing tutorial index

Linear Referencing tutorial index

Maplex tutorial index

Representations tutorial index

Spatial Analyst tutorial index

StreetMap tutorial index

Tracking Analyst tutorial index
Toolbars
Getting more help
Map projections and coordinate systems
Getting started with map projections
Geographic coordinate systems

About geographic coordinate systems

Spheroids and spheres

Datums

North American datums

What happens to features at +/-180 (dateline)?
Projected coordinate systems

About projected coordinate systems

About map projections

Projection types

Planar projections

Conic projections

Cylindrical projections

Other projections

Projection parameters
Geographic transformations

Geographic transformation methods

Equation-based methods

Grid-based methods
Supported map projections
Vertical coordinate systems

About vertical coordinate systems

Vertical datums

Geoid
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

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

Shortcut keys for editing in ArcMap
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

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

Creating buffers

Mirroring features

Combining features from different layers

Intersecting features

Merging and separating features

Copying parallel line features

Creating a fillet curve between two lines

Creating cul-de-sac lines

Creating lines with the Traverse window

Creating lines with the 2-Point Line window

Creating lines with the Offset Line window
Editing existing features

Moving features

Rotating features

Copying and pasting features

Deleting features

Adding and deleting vertices

Moving vertices

Editing attribute values of a vertex

Reshaping lines and polygons using a sketch

Splitting polygon features

Splitting line features

Trimming lines

Extending lines

Flipping lines

Scaling features

Clipping features

Stretching a feature's geometry proportionately

Simplifying and smoothing features
Editing attributes
Editing annotation
Editing dimension features

About editing dimension features

Creating dimension features

Modifying a dimension feature's geometry and style
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

About editing relationships and related objects

Editing relationships and related objects
COGO
Geoprocessing

What is geoprocessing?

A whirlwind tour of geoprocessing

Geoprocessing tools

Geoprocessing framework

Frequently Asked Questions about geoprocessing
Fundamental tool concepts

An introduction to the fundamental tools

Overlay analysis

Proximity analysis

Table analysis and management

Surface creation and analysis

Statistical analysis

Extracting data
Using geoprocessing tools
Automating your work with models
Automating your work with scripts
Geoprocessing environments
Documenting tools and toolboxes

An overview of documenting tools and toolboxes

An overview of the Documentation Editor

Entering topics in the Documentation Editor

Using the page editor

Documenting models

Documenting scripts

Viewing documentation for tools

Changing tool dialog appearance

Referencing a compiled help file

Exporting tool documentation to an HTML file
Sharing tools and toolboxes

An overview of sharing tools and toolboxes

Methods for distributing tools

Pathnames explained: absolute, relative, UNC, and URL

A structure for sharing tools

Managing intermediate data

Accessing ArcSDE data in tools

Sharing Python modules
Sharing tools on an ArcGIS Server
Keeping track of geoprocessing history
Advanced modeling through simulations
Geoprocessing tool reference
Geodatabases and ArcSDE
An overview of the Geodatabase
Architecture of a geodatabase
Designing a geodatabase
Building a geodatabase
Data management workflows, transactions, and versioning
Getting started with editing and maintaining data
Working with non-versioned data
Working with versioned data
Managing Distributed Data
Archiving data
Geodatabase data storage and schema

How geodatabases are stored in a DBMS
Feature geometry and raster data storage
Inside a geodatabase in Oracle
Inside a geodatabase in SQL Server
Inside a geodatabase in DB2
Inside a geodatabase in Informix
Administering ArcSDE geodatabases
Administering File and Personal geodatabases
Working with geodatabases using SQL

An overview of working with a geodatabase using SQL

Spatial relationships

Spatial operations

SQL implementation differences
Using spatial types with SQL
SQL functions reference
Data management with ArcCatalog
Data support in ArcGIS

An overview of data support in ArcGIS

Data formats supported in ArcGIS
CAD data
Coverages
NetCDF: multidimensional, time series data
Raster data
Shapefiles
Tables and attribute information
Understanding tables and attribute information
Creating tables and managing attribute information
Displaying tables and attribute information
Terrains
Extensions
Geocoding and address management
Linear referencing
Getting started with linear referencing
Creating route feature classes
Displaying and querying routes feature classes
Displaying and querying route events

An overview of displaying and querying route events

Dynamic segmentation

Adding route events
Editing routes

An overview of editing routes

Creating route features from existing lines

Using ArcMap to calibrate routes with points

About setting route measures

Remeasuring routes

Adding the Route Editing toolbar
Creating and editing event data

An overview of creating and editing event data

Creating event tables in ArcCatalog

About locating features along routes

Locating features along routes

Editing event tables in ArcMap
Working with route event data
Network analysis

Using the Network Analyst extension
Analyzing geometric networks
Mobile GIS
Interoperability and standards support

Overview of interoperability

Overview of OGC and ISO support

ESRI protocols and programming interfaces
GML support in ArcGIS
Customizing and developing with ArcGIS
Guide to data that comes with ArcGIS
Licensing and desktop administration

Administering the ArcGIS License Manager

Checking license availability

Viewing and changing the license manager

Common license manager problems and how to solve them

Setting the software product

Registering ArcView or ArcEditor and extensions

Evaluating an ArcGIS Desktop extension
ArcGIS Image Server
GIS Servers and services