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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
Toolbars
Getting more help
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)?
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

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
Working with layers

Adding layers to a map

Adding x,y coordinate data as a layer

Changing a layer's drawing order

Changing a layer's text description

Setting layer properties

Managing group layers

Saving a layer to disk

Copying layers

Displaying layers at certain scales

Displaying a subset of features in a layer

Repairing broken data links

Viewing a layer's metadata in ArcMap
GIS service layers
Navigating and interacting with maps
Navigating maps and layout pages
Interacting with maps
Adding graphics and text to maps
Working with graphics
Working with text
Symbolizing data
Animation
Using cartographic representations
Page layout and map composition
Getting started with laying out and printing maps
Map elements
Grids and graticules
Rulers and guides
Working with data frames in layout view
Creating interactive and paperless maps
Map output
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

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 attributes

Copying and pasting attributes

Deleting attributes

Editing with default values and attribute domains

About updating data using SQL
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

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
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

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

An overview of geoprocessing environments

Environment levels and hierarchy

Script environments

Specifying application environment settings

Specifying tool environment settings

Specifying model environment settings

Specifying model process environment settings
Environment categories
Documenting tools and toolboxes
Sharing tools and toolboxes
Keeping track of geoprocessing history
Advanced modeling through simulations
Geoprocessing tool reference

An overview of commonly used tools

Geoprocessing commands quick reference guide

Licensing for geoprocessing tools

Data types for geoprocessing tool parameters
3D Analyst toolbox
Analysis toolbox
Business Analyst toolbox
Cartography toolbox
Conversion toolbox

An overview of the Conversion toolbox
From Raster toolset
Metadata toolset
To CAD toolset
To Coverage toolset
To dBASE toolset
To Geodatabase toolset
To Raster toolset
To Shapefile toolset
Coverage toolbox
Data Interoperability toolbox

An overview of the Data Interoperability toolbox
Tools
Data Management toolbox
Geocoding toolbox
Geostatistical Analyst toolbox
Linear Referencing toolbox
Multidimensional toolbox
Military Analyst toolbox

An overview of the Military Analyst toolbox
Data Management toolset
Geometry toolset
Utilities toolset
Military Overlay Editor toolbox

An overview of the Military Overlay Editor toolbox
Utilities toolset
Network Analyst toolbox

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

An overview of the Samples toolbox
Conversion
Data Management
Tracking Analyst toolbox
Environment Settings
Geodatabases and ArcSDE
An overview of the Geodatabase

An overview of the Geodatabase

Table basics

Feature class basics

Raster basics

Types of geodatabases

Common Geodatabase Tasks
Architecture of a geodatabase
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 personal geodatabases

File geodatabases and the file system
Working with geodatabases using SQL
Data management with ArcCatalog
Data support in ArcGIS
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 routes 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
Creating and editing event data
Working with route event data
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
ArcGIS Image Server
GIS Servers and services

An overview of GIS services

Servers and the services they provide

User, author, administrator, and developer roles

Types of ArcIMS services

Types of services in ArcGIS Server

WMS service

Using GIS Services in ArcGIS Desktop applications

Thinking about maps in web-enabled GIS applications

Understanding map caches in ArcGIS

Managing server connections in the GIS Servers folder
Authoring and publishing services
Administering ArcGIS Server with ArcCatalog