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

What's new in ArcGIS 9.3

What's new in ArcGIS 9.3.1
Migration guides
Getting started
Fundamentals of GIS
Introducing ArcGIS Desktop

What is ArcGIS 9.3

An overview of ArcGIS Desktop

Using ArcGIS Desktop

Mapping and visualization in ArcMap

The geodatabase

Workspace and dataset management with ArcCatalog

Data compilation and editing

Geoprocessing and analysis

Tips and tricks within ArcGIS
Tutorials

Tutorials

3D Analyst Tutorial

Animation in ArcMap Tutorial

ArcCatalog Tutorial

ArcMap Tutorial

ArcGIS Publisher Tutorial

ArcReader Tutorial

ArcScan Tutorial

Building a Geodatabase Tutorial

Database Servers Tutorial

Data Interoperability Tutorial

Editing Geodatabases Tutorial

Editing GIS Features Tutorial

Geocoding Tutorial

Geoprocessing Tutorial

Geostatistical Analyst Tutorial

Getting Started with ArcGIS Tutorial

Linear Referencing Tutorial

Maplex Tutorial

Network Analyst Tutorial

Representations Tutorial

Schematics Tutorial

Spatial Analyst Tutorial

StreetMap Tutorial

Survey Analyst Tutorial

Tracking Analyst Tutorial
Toolbars
Getting more help

Using this Help system

Getting help within the applications

ArcGIS Desktop Resource Center

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

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
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-Krüger

Geocentric Coordinate System

Geographic Coordinate System

Gnomonic

Goodes Homolosine

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 Carrée

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
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
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

About digitizing

An overview of preparing to digitize

Registering the paper map

Digitizing features on a paper map
Spatial adjustment
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
Tables and attribute information
Understanding tables and attribute information

An overview of tables and attribute information

About tabular data sources

Common tables and attributes tasks

Keyboard shortcuts for working with tables
Creating tables and managing attribute information

Creating new tables

About ObjectID fields

Adding and deleting fields

Editing values in a table

Making field calculations

Working with date fields

Reloading the table cache

Exporting records

About joining and relating tables

Joining tables

Relating tables

Joining the attributes of features by location

Creating spatial data from tables

Working with Microsoft Excel files in ArcGIS

Working with Microsoft Access files in ArcGIS
Displaying tables and attribute information
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
Automating your work with scripts

An overview of writing geoprocessing scripts
Getting started with writing geoprocessing scripts
Accessing tools within a geoprocessing script
Creating script tools
Batch processing with geoprocessing scripts
Data properties and access when scripting
Working with AMLs
Scripting object: Properties and Methods
Geoprocessing environments
Documenting tools and toolboxes
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

Sharing and connecting to UNC pathnames

Accessing ArcSDE data in tools

Techniques for sharing Python scripts

Managing intermediate data in shared models

Sharing stylesheets

Checklist for sharing tools and toolboxes
Geoprocessing with 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

Architecture of a geodatabase

Geodatabase storage is based on relational principles

Where does the application logic belong?

The geodatabase is object-relational

Geodatabase storage in relational databases

Geodatabase transaction management

Geodatabase XML
Designing a geodatabase
Building a geodatabase
Data management workflows, transactions, and versioning
Geodatabase data storage and schema
Administering ArcSDE geodatabases
Administering File and Personal geodatabases

An overview of administering file and personal geodatabases

File geodatabases: compressing vs. compacting

Compacting file and personal geodatabases

About compressing file geodatabase data

Upgrading file and personal geodatabases

File geodatabases and Windows Explorer

File geodatabase size and name limits

File geodatabases and locking
Working with geodatabases using SQL

An overview of working with ST_Geometry storage using SQL

Spatial relationships

Spatial operations

Geometry properties

SQL implementation differences for the ST_Geometry type
Using spatial types with SQL
SQL functions reference
Data management with ArcCatalog
Image and raster data management
Data support in ArcGIS

An overview of data support in ArcGIS

Data formats supported in ArcGIS
CAD data
Coverages

What is a coverage

Summary of coverage feature classes

Coverage resolution (precision)

How coverages are stored

Creating a new coverage

Understanding and maintaining attributes in a coverage

About fields (items) in coverage attribute tables

Creating a new INFO table

About the coverage extent

Coverage tics

Defining a coverage's coordinate system

Coverage topology

Coverage tolerances

Coverage relationships and relationship classes

Coverage data limitations

Importing an ArcInfo interchange file (E00)
NetCDF: multidimensional, time series data
Shapefiles
Terrains

An overview of terrain datasets

FAQs for terrain datasets

Terrain dataset troubleshooting

Known limitations of terrain datasets
Understanding terrain datasets
Properties of terrain datasets
Building terrain datasets
Managing terrain datasets
Terrain analysis
Terrain visualization
Extensions
Geocoding and address management
Linear referencing
Getting started with linear referencing
Creating route feature classes

An overview of creating route feature classes

Creating route feature classes

Defining the measure properties of your m coordinates

Using existing linear features to create routes

Creating routes from existing lines

About calibrating route measures using points

Calibrating routes with points

Migrating route features to a geodatabase

Accessing the Create Routes wizard

Accessing the Calibrate Routes wizard
Displaying and querying route feature classes
Displaying and querying route events
Editing routes
Creating and editing event data
Working with route event data

An overview of working with route event data

About overlaying event data

Overlaying events

About aggregating event data

Aggregating route events

About transforming event measures

Transforming event measures

Accessing the Route Events Geoprocessing wizard
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