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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
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
Mapping and visualization
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
Editing dimension features

About editing dimension features

Creating dimension features

Modifying a dimension feature's geometry and style
Using a digitizer
Spatial adjustment
Editing topology
Editing relationships and related objects
COGO

An overview of COGO

Common COGO workflows

About COGO descriptions

Adding COGO fields to a feature class

Traverse file format

Offset points file format

Applying a ground to grid correction

Reporting COGO descriptions

Using the Curve Calculator command

Using the COGO Area command

Splitting features into COGO lines
Tables and attribute information
Geoprocessing
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
Properties of raster data
Designing a raster database
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
Data support in ArcGIS

An overview of data support in ArcGIS

Data formats supported in ArcGIS
CAD data
Coverages
NetCDF: multidimensional, time series data
Shapefiles
Terrains
Extensions

About ArcGIS Desktop extensions

Evaluating ArcGIS Desktop extensions
3D Analyst
Data Interoperability

About the Data Interoperability help system

An overview of Data Interoperability

Key concepts of the Data Interoperability extension

Using the Data Interoperability tools
Common tasks using Data Interoperability
Using the Data Interopability tools
ArcGIS for AutoCAD

What is ArcGIS for AutoCAD?

Who should use ArcGIS for AutoCAD

Installation

What is ArcGIS Online?
Map service layers
Feature class layers
Coordinate systems
Customization
Tutorial
Troubleshooting
ArcGIS Publisher
ArcScan
ArcSketch
Business Analyst
Geostatistical Analyst
JTX
Maplex
Getting started with Maplex
Label Positions for Points
Label Positions for Lines
Label Positions for Polygons
Label fitting strategies
Resolving label conflicts
Common labeling tasks
Military Analyst
Military Overlay Editor

About MOLE

What's new in this release

Installation and setup

Accessing the Installing and Getting Started with Defense Solutions guide

MOLE documentation and additional ways to get help
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
Other ESRI applications compatible with MOLE
Advanced topics
Frequently asked questions
Network Analyst
PLTS
Schematics
Spatial Analyst
Survey Analyst
Tracking Analyst
Geocoding and address management
Getting started with geocoding
Understanding geocoding
Preparing for geocoding

Understanding address locator styles

Commonly used address locator styles

Preparing reference and address data

Standardizing your reference data
Building an address locator
Locating addresses

The geocoding process

Finding an individual address

Getting an address of a location

Geocoding a table of addresses

Rematching a geocoded feature class
Additional geocoding techniques
Keeping an address locator current
Distributing your address locator

Deciding to share an address locator

Collecting address locators

Making your address locator public

Accessing distributed address locators

Sharing pre-9.2 address locators
Adjusting your address locator file
About StreetMap data
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
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
Administering ArcGIS Server with ArcCatalog
Creating and publishing web maps for ArcGIS Server