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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
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
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
Using ArcMap
Working with layers
Navigating and interacting with maps
Adding graphics and text to maps
Symbolizing data
Animation
Using cartographic representations
Getting started with representations
Representation concepts
Working with representations
Editing feature 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
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
Using a digitizer
Spatial adjustment
Editing topology
Editing relationships and related objects
COGO
Geoprocessing
Geoprocessing tool reference
Geodatabases and ArcSDE
Data management with ArcCatalog
Data support in ArcGIS
Extensions
3D Analyst
ArcGIS Data Interoperability extension
ArcGIS Publisher
ArcScan
Business Analyst
Geostatistical Analyst
Maplex
Military Analyst
Military Overlay Editor

About MOLE

What's new in this release

Installation and setup

Accessing the MOLE getting started guide

MOLE documentation and additional ways to get help

MOLE considerations for ArcView users
Using MOLE with 2D maps
Using MOLE with 3D maps
The MOLE geodatabase schema
Using MOLE in terrain analysis
Tracking, real-time, and MOLE
Using MOLE with ArcSDE
Using MOLE with ArcIMS
Advanced topics
Frequently asked questions
Network Analyst
PLTS
Schematics
Spatial Analyst
Survey Analyst
Tracking Analyst
Geocoding and address management
Linear referencing
Network analysis
Mobile GIS
Interoperability and standards support
Customizing and developing with ArcGIS
Guide to data that comes with ArcGIS
ESRI Data and Maps
Working with StreetMap data
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