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

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

About vertical coordinate systems

Vertical datums

Geoid
Mapping and visualization
Editing and data compilation

An overview of editing and data compilation
Getting started with editing
Common editing tasks
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 annotation
Editing dimension features
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

About editing relationships and related objects

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
Displaying tables and attribute information

Previewing a table in ArcCatalog

Adding and viewing tables in ArcMap

Setting field properties, aliases, and table display options

Navigating to and finding records in a table

Sorting records in a table

Selecting records in a table

Summarizing data in a table

Printing a table

Adding a table to a layout

Viewing statistics for a table

Creating a graph from a table

Creating a report from a table
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
Geoprocessing environments
Documenting tools and toolboxes
Sharing tools and toolboxes
Geoprocessing with ArcGIS Server
Keeping track of geoprocessing history
Advanced modeling through simulations
Geoprocessing tool reference
Geodatabases and ArcSDE
Data management with ArcCatalog

An overview of ArcCatalog

About workspaces
Getting started with ArcCatalog
Building the Catalog
Managing the Catalog's contents
Exploring an item's geography
Searching for items
Working with metadata
Image and raster data management
Understanding raster data

What is raster data?

Raster bands

Cell size of raster data

Representing features in a raster dataset

Discrete and continuous data

Raster dataset zones and regions

Raster dataset attribute tables

Raster data organization

Gathering basic raster dataset information
Supported raster data

Supported raster dataset file formats

Technical specifications for raster dataset formats

About the ESRI Grid format

About MrSID rasters

BIL, BIP, and BSQ raster files

Raster data with subdatasets

Building a customized raster format
Properties of raster data
Designing a raster database
Building and managing a raster database
Raster display and visualization
Raster analysis and geoprocessing
Serving raster data
Data support in ArcGIS
Extensions
Geocoding and address management
Linear referencing
Network analysis

Using the Network Analyst extension
Analyzing geometric networks
Mobile GIS
Interoperability and standards support

Overview of interoperability

Overview of OGC and ISO support

ESRI protocols and programming interfaces
GML support in ArcGIS
WFS support in ArcGIS
WCS support in ArcGIS
WMS support in ArcGIS
KML support in ArcGIS
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

An overview of GIS servers used with ArcGIS
Using ArcIMS with ArcGIS Desktop
Using ArcGIS Server with ArcGIS Desktop
Authoring and publishing services for ArcGIS Server

An overview of authoring and publishing services

Data access considerations for ArcGIS Server

Publishing resources
Administering ArcGIS Server with ArcCatalog
Creating and publishing web maps for ArcGIS Server