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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
Tables and attribute information
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

Opening ModelBuilder

Creating a simple model

Saving a model
Model concepts and terms
Using ModelBuilder
Controlling the flow of processing
Model Iteration
Automating your work with scripts

An overview of writing geoprocessing scripts
Getting started with writing geoprocessing scripts
Accessing tools within a geoprocessing script
Creating script tools
Batch processing with geoprocessing scripts
Data properties and access when scripting
Working with AMLs
Scripting object: Properties and Methods
Geoprocessing environments
Documenting tools and toolboxes
Sharing tools and toolboxes

An overview of sharing tools and toolboxes

Methods for distributing tools

Pathnames explained: Absolute, relative, UNC, and URL

A structure for sharing tools

Sharing and connecting to UNC pathnames

Accessing ArcSDE data in tools

Techniques for sharing Python scripts

Managing intermediate data in shared models

Sharing stylesheets

Checklist for 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

Starting ArcCatalog

Browsing through the Catalog

What's in the Catalog

Repositioning the Catalog tree

Stopping 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
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
ArcGIS for AutoCAD
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
Network Analyst
PLTS
Schematics
Spatial Analyst
Getting started with Spatial Analyst
Solving spatial problems
Performing analysis in Spatial Analyst
The Raster Calculator
Analysis concepts
Spatial Analyst functional reference

An overview of Spatial Analyst Toolsets and Tools
Color Model (Spatial Analyst)

An overview of the Color Model tools

About color models

Color2Blue

Color2Green

Color2Hue

Color2Red

Color2Sat

Color2Val

Hsv2Blue

Hsv2Green

Hsv2Red
Conditional (Spatial Analyst)
Conversion (Spatial Analyst)
Density (Spatial Analyst)

An overview of the Density tools

Kernel Density

Line Density

Point Density
Distance (Spatial Analyst)

An overview of the Distance tools

Corridor

Cost Allocation

Cost Back Link

Cost Distance

Cost Path

CostDistanceFull

CostPathAsPolyline

EucAllocation

EucDirection

EucDistance

EucDistanceFull

Euclidean Allocation

Euclidean Direction

Euclidean Distance

Path Distance

Path Distance Allocation

Path Distance Back Link

PathAllocation

PathBackLink

PathDistanceFull
Extraction (Spatial Analyst)
Generalization (Spatial Analyst)

An overview of the Generalization tools

Aggregate

Boundary Clean

Expand

Majority Filter

Nibble

Region Group

Shrink

Thin
Groundwater (Spatial Analyst)

An overview of the Groundwater tools

Darcy Flow

Darcy Velocity

Particle Track

Porous Puff
Hydrology (Spatial Analyst)
Interpolation (Spatial Analyst)
Local (Spatial Analyst)
Map Algebra (Spatial Analyst)

An overview of the Map Algebra tools

Multi Output Map Algebra

Single Output Map Algebra
Math General (Spatial Analyst)
Math Bitwise (Spatial Analyst)
Math Logical (Spatial Analyst)

An overview of the Logical Math tools

!

&

^

|

==

^=

>

>=

<

<=

Boolean And

Boolean Not

Boolean Or

Boolean XOr

CAnd

Combinatorial And

Combinatorial Or

Combinatorial XOr

COr

CXOr

Diff

Equal To

Greater Than

Greater Than Equal

In

InList

Is Null

Less Than

Less Than Equal

Not Equal

Over

Test
Math Trigonometric (Spatial Analyst)
Multivariate (Spatial Analyst)

An overview of the Multivariate tools

Band Collection Statistics

Class Probability

ClassProb

Create Signatures

ClassSig

Dendrogram

Edit Signatures

EditSig

Iso Cluster

Maximum Likelihood Classification

MLClassify

Principal Components

PrinComp

StackStats
Neighborhood (Spatial Analyst)

An overview of the Neighborhood tools

Block Statistics

BlockMajority

BlockMax

BlockMean

BlockMedian

BlockMin

BlockMinority

BlockRange

BlockStd

BlockSum

BlockVariety

Filter

Focal Flow

Focal Statistics

FocalMajority

FocalMax

FocalMean

FocalMedian

FocalMin

FocalMinority

FocalRange

FocalStd

FocalSum

FocalVariety

Line Statistics

LineStats

Point Statistics

PointStats
Overlay (Spatial Analyst)

An overview of the Overlay tools

Weighted Overlay

Weighted Sum
Raster Creation (Spatial Analyst)

An overview of the Raster Creation tools

Create Constant Raster

Create Normal Raster

Create Random Raster

MakeConstant

MakeNormal

MakeRandom

Normal

Rand
Raster Management (Spatial Analyst)

An overview of the Raster Management tools

BuildSTA

BuildVAT

Clip

MakeStack

Merge

Mosaic

MergeVAT

Resample
Raster Transformation (Spatial Analyst)
Reclass (Spatial Analyst)

An overview of the Reclass tools

Lookup

Reclass

Reclass by ASCII File

Reclass by Table

ReclassByRemap

Reclassify

Slice
Solar Radiation (Spatial Analyst)
Surface (Spatial Analyst)
Zonal (Spatial Analyst)

An overview of the Zonal tools

Tabulate Area

Zonal Fill

Zonal Geometry

Zonal Geometry as Table

Zonal Statistics

Zonal Statistics as Table

ZonalArea

ZonalCentroid

ZonalMajority

ZonalMax

ZonalMean

ZonalMedian

ZonalMin

ZonalMinority

ZonalPerimeter

ZonalRange

ZonalStats

ZonalStd

ZonalSum

ZonalThickness

ZonalVariety
Survey Analyst

An overview of Survey Analyst
Cadastral Editor
Survey Editor
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
Licensing and desktop administration
GIS Servers and services