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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
Tutorials
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

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-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

About vertical coordinate systems

Vertical datums

Geoid
Mapping and visualization
Editing and data compilation
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
Displaying tables and attribute information
Geoprocessing
Geoprocessing tool reference

An overview of commonly used tools

Geoprocessing commands quick reference guide

Licensing for geoprocessing tools

Data types for geoprocessing tool parameters
Input and output data considerations

Overview of input and output data considerations

Geoprocessing considerations for subtypes

Geoprocessing considerations for attribute domains

Geoprocessing considerations for shapefile output

Geoprocessing considerations for cartographic representations
3D Analyst toolbox

An overview of the 3D Analyst toolbox

Understanding 3D data

Concepts of surface analysis

Working with TIN surfaces

Working with raster surfaces

3D visualization
3D Analyst Conversion toolset
Functional Surface toolset
Raster Interpolation toolset
Raster Math toolset
Raster Reclass toolset
Raster Surface toolset
Terrain toolset
TIN Creation toolset
TIN Surface toolset
Analysis toolbox
Business Analyst toolbox
Cartography toolbox
Conversion toolbox
Coverage toolbox
Data Interoperability toolbox
Data Management toolbox

An overview of the Data Management toolbox
Data Comparison toolset
Database toolset
Disconnected Editing toolset
Distributed Geodatabase toolset
Domains toolset
Feature Class toolset
Features toolset
Fields toolset
File Geodatabase toolset
General toolset
Generalization toolset
Indexes toolset
Joins toolset
Layers and Table Views toolset
Projections and Transformations toolset
Raster toolset
Relationship Classes toolset
Subtypes toolset
Table toolset
Topology toolset
Versions toolset
Workspace toolset
Geocoding toolbox
Geostatistical Analyst toolbox
Linear Referencing toolbox
Military Analyst toolbox
Mobile toolbox

An overview of the Mobile toolbox
Tools
Military Overlay Editor toolbox
Multidimensional toolbox
Network Analyst toolbox

An overview of the Network Analyst toolbox
Analysis toolset
Network Dataset toolset
Turn Feature Class toolset
Server toolbox

An overview of the Server toolbox
Caching toolset
Schematics toolbox
Spatial Analyst toolbox
Spatial Statistics toolbox

An overview of the Spatial Statistics toolbox

Modeling spatial relationships

Spatial Statistics toolbox sample applications

What is a Z score What is a p-value
Analyzing Patterns toolset
Mapping Clusters toolset
Measuring Geographic Distributions toolset
Modeling Spatial Relationships toolset
Rendering toolset
Utilities toolset
Samples toolbox

An overview of the Samples toolbox
Conversion
Data Management
Tracking Analyst toolbox

An overview of the Tracking Analyst toolbox
Tools
Environment Settings
Tool errors and warnings
Geodatabases and ArcSDE
Data management with ArcCatalog
Image and raster data management
Understanding raster data
Supported raster data
Properties of raster data
Designing a raster database

Design methodology for a raster database

Why store rasters in a geodatabase

Example raster case studies including the storage decisions

Raster datasets as attributes

More details about rasters in ArcGIS
Building and managing a raster database
Raster display and visualization
Raster analysis and geoprocessing

About analyzing raster data

Making selections using the geodatabase raster catalog

Raster conversion

Core geoprocessing tools for raster data

About environment settings for raster data

Specifying raster storage environment settings

Specifying raster analysis environment settings

Specifying the snap raster environment setting
Serving raster data
Serving raster data
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

About shapefiles, dBASE tables, and file types

Shapefile file extensions

Creating new shapefiles and dBASE tables

Adding and deleting fields in shapefiles

Creating and updating indexes in shapefiles

Defining a shapefile's coordinate system

How to salvage a corrupt shapefile
Terrains
Extensions
Geocoding and address management
Linear referencing
Getting started with linear referencing
Creating route feature classes
Displaying and querying route feature classes

An overview of displaying and querying route feature classes

Working with route feature classes in ArcMap

Setting the route identifier field

Querying route feature classes

Displaying route measure anomalies

About hatching route feature classes

Hatching options

Displaying hatches

Manipulating the text on hatches

Working with hatch styles
Displaying and querying 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
Working with route event data
Network analysis

Using the Network Analyst extension
Analyzing geometric networks

What is a geometric network?
Creating and managing geometric networks
Editing geometric networks
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

Administering the ArcGIS License Manager

Setting up license managers for ArcGIS 93 concurrent use products

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

Error reporting for ArcGIS software crash data

Frequently asked questions about error reporting
GIS Servers and services