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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

How maps convey geographic information

Georeferencing and coordinate systems

Elements of geographic information

How GIS represents and organizes geographic information

How ArcGIS users work with geographic information

Users work with many data types and data formats in ArcGIS
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

Core ArcMap toolbars

ArcCatalog toolbars

Extension toolbars

ArcScene toolbars

ArcGlobe toolbars

ArcReader toolbars
Getting more help

Using this help system

Getting help within the applications

ArcGIS Desktop Documentation Library

Accessing ESRI Software Training

Using the GIS Dictionary

Contacting Technical Support

Support for users located outside the United States

Contacting ESRI
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
Supported map projections

List of supported map projections

Aitoff

Alaska Grid

Alaska Series E

Albers Equal Area Conic

Azimuthal Equidistant

Behrmann Equal Area Cylindrical

Bipolar Oblique Conformal Conic

Bonne

Cassini-Soldner

Chamberlin Trimetric

Craster Parabolic

Cube

Cylindrical Equal Area

Double Stereographic

Eckert I

Eckert II

Eckert III

Eckert IV

Eckert V

Eckert VI

Equidistant Conic

Equidistant Cylindrical

Equirectangular

Fuller

Gall's Stereographic

Gauss-Kruger

Geocentric Coordinate System

Geographic Coordinate System

Gnomonic

Great Britain National Grid

Hammer-Aitoff

Hotine Oblique Mercator

Krovak

Lambert Azimuthal Equal Area

Lambert Conformal Conic

Local Cartesian Projection

Loximuthal

McBryde-Thomas Flat-Polar Quartic

Mercator

Miller Cylindrical

Mollweide

New Zealand National Grid

Orthographic

Perspective

Plate Carree

Polar Stereographic

Polyconic

Quartic Authalic

Rectified Skewed Orthomorphic

Robinson

Simple Conic

Sinusoidal

Space Oblique Mercator

State Plane Coordinate System

Stereographic

Times projection

Transverse Mercator

Two-Point Equidistant

Universal Polar Stereographic

Universal Transverse Mercator

Van der Grinten I

Vertical Near-Side Perspective

Winkel I

Winkel II

Winkel Tripel
Vertical coordinate systems

About vertical coordinate systems

Vertical datums

Geoid
Mapping and visualization
An overview of mapping and visualization

An overview of ArcMap

Data frames

Map layers

Symbols and styles

Text

Cartographic representations

Map layouts and map printing

Graphs, reports, and animations

Common tasks within ArcMap

Shortcuts for common tasks within ArcMap
Using ArcMap

Layers, data frames, and the table of contents

Starting ArcMap

Creating a new map

Opening a map

Using the table of contents

About coordinate systems and map projections

Specifying a coordinate system

Referencing data in the map

Working with data frames

Pausing the map's drawing

Saving a map and exiting ArcMap

Saving to previous versions of ArcGIS

Keyboard shortcuts in ArcMap
Working with layers
Navigating and interacting with maps
Navigating maps and layout pages
Interacting with maps
Adding graphics and text to maps
Symbolizing data
Animation
Getting started with animation
Animation concepts
Building animations
Playing animations
Editing animations
Saving, exporting, and loading animations
Common animation work flows
Using cartographic representations
Page layout and map composition
Working with graphs and reports
Editing and data compilation

An overview of editing and data compilation
Getting started with 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

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

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

About editing dimension features

Creating dimension features

Modifying a dimension feature's geometry and style
Using a digitizer
Spatial adjustment

An overview of spatial adjustment

Adding the Spatial Adjustment toolbar

Setting up the spatial adjustment

Working with links

Working with link files and control point files

Previewing and performing the adjustment

Transferring attributes between features
Editing topology

About topology

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 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
Geoprocessing

What is geoprocessing?

A whirlwind tour of geoprocessing

Geoprocessing tools

Geoprocessing framework

Frequently Asked Questions about geoprocessing
Fundamental tool concepts
Using geoprocessing tools
Automating your work with models

An overview of models

Creating a simple model
Model concepts and terms
Using ModelBuilder
Controlling the flow of processing
Model Iteration
Automating your work with scripts
Geoprocessing environments
Documenting tools and toolboxes
Sharing tools and toolboxes
Keeping track of geoprocessing history
Advanced modeling through simulations
Geoprocessing tool reference
Geodatabases and ArcSDE
Data management with ArcCatalog
Data support in ArcGIS
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
Editing routes
Creating and editing event data
Working with route event data
Network analysis
Mobile GIS
Interoperability and standards support
Customizing and developing with ArcGIS
Guide to data that comes with ArcGIS
Licensing and desktop administration
ArcGIS Image Server
GIS Servers and services