Getting Started With ArcGIS

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Getting Started with ArcGISGIS by ESRIBob Booth and Andy Mitchell

Copyright 1999 2001 ESRI.All rights reserved.Printed in the United States of America.The information contained in this document is the exclusive property of ESRI. This work is protected under United States copyright law and thecopyright laws of the given countries of origin and applicable international laws, treaties, and/or conventions. No part of this work may be reproducedor transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or by any information storage or retrievalsystem, except as expressly permitted in writing by ESRI. All requests should be sent to Attention: Contracts Manager, ESRI, 380 New York Street,Redlands, CA 92373-8100, USA.The information contained in this document is subject to change without notice.U.S. GOVERNMENT RESTRICTED/LIMITED RIGHTSAny software, documentation, and/or data delivered hereunder is subject to the terms of the License Agreement. In no event shall the U.S. Governmentacquire greater than RESTRICTED/LIMITED RIGHTS. At a minimum, use, duplication, or disclosure by the U.S. Government is subject to restrictionsas set forth in FAR §52.227-14 Alternates I, II, and III (JUN 1987); FAR §52.227-19 (JUN 1987) and/or FAR §12.211/12.212 (Commercial TechnicalData/Computer Software); and DFARS §252.227-7015 (NOV 1995) (Technical Data) and/or DFARS §227.7202 (Computer Software), as applicable.Contractor/Manufacturer is ESRI, 380 New York Street, Redlands, CA 92373-8100, USA.ESRI, ArcView, SDE, and the ESRI globe logo are trademarks of ESRI, registered in the United States and certain other countries; registration is pendingin the European Community. ArcGIS, ArcInfo, ArcSDE, ArcCatalog, ArcEditor, ArcMap, ArcToolbox, ArcPress, ArcIMS, 3D Analyst, GIS by ESRI, andthe ESRI Press logo are trademarks and ArcData, www.esri.com, www.geographynetwork.com, and www.gis.com are service marks of ESRI.The names of other companies and products herein are trademarks or registered trademarks of their respective trademark owners.Attribution.p65102/21/2001, 7:42 AM

ContentsGetting to Know ArcGISIntroduction31 Welcome to ArcGIS5What can you do with ArcGIS? 6Unique projects to daily business 9Tasks you perform with ArcGIS 11Tips on learning ArcGIS 162 Exploring ArcCatalog and ArcMap17Introducing ArcCatalog 18Viewing data in ArcCatalog 19Connecting to your data 20Introducing ArcMap 23Working with maps 24Exploring a map 25Adding a layer to a map 28Adding features from a database 29Changing the way features are drawn 30Adding labels to a map 33Working with the map layout 35Saving a map 41Printing a map 42What s next? 433 Exploring GIS data45Geographic data models 46Formats of feature data 50iiiTable of Contents.p65302/16/2001, 8:15 AM

12Conducting a GIS Project4 Planning a GIS project65What is GIS analysis? 66The steps in a GIS project 69Planning your project 715 Assembling the database77Organizing the project database 78Adding data to the project folder 83Previewing the data in ArcCatalog 88Examining the data in ArcMap 93Cleaning up the Catalog tree 1066 Preparing data for analysis109Data preparation tasks 110Defining the coordinate system for the elevation data 111What are coordinate systems? 118Projecting the river shapefile 120Exporting the river shapefile to the geodatabase 126Digitizing the historic park 128Merging the parcel layers 1487 Performing the analysis151Setting up for analysis 152Delineating the area the plant site should be within 153Delineating the areas the plant site should be outside of 158Finding the parcels that meet the location criteria 169Finding the vacant parcels 173Finding suitable parcels near roads and near the wastewater junctionFinding suitable parcels meeting the required total area 185Reviewing the analysis results 189176ivTable of Contents.p65GETTING STARTED WITH ARCGIS402/16/2001, 8:15 AM

8 Presenting the results195Designing the map 196Setting up the map page 198Creating the overview map 206Creating the map of suitable parcels 212Creating the map of highly suitable parcels 218Creating the parcel report 230Adding the list of site criteria to the map 233Adding the map elements 234Saving the map and printing it 248What s next? 250CONTENTSTable of Contents.p65v502/16/2001, 3:06 PM

Table of Contents.p65602/16/2001, 8:15 AM

Getting to Know ArcGISSection 1introduction.p65102/15/2001, 8:44 AM

introduction.p65202/15/2001, 8:44 AM

IntroductionWelcome to Getting Started with ArcGIS. This book is intended to help youget started using ESRI ArcGIS software and to illustrate the methodsand procedures involved in conducting a geographic information system(GIS) project. If you are new to GIS, this book is a great place to start youcan learn how to use a GIS to solve problems while you are learning to useArcGIS.This book is divided into two sections. The first section, Getting to KnowArcGIS , teaches you the basics of ArcGIS and GIS data. The secondsection, Conducting a GIS Project , begins with Chapter 4, Planning aGIS project , and is a sample GIS project that you can work through. Theproject is designed to let you work at your own pace, without the need ofadditional help. Readers who wish to complete the entire GIS projectsection of the book should plan to spend about eight hours of focused timeon the project.In order to get started, you will need ArcGIS installed on a Windows machine. You will also need to install the ArcTutor tutorial data on yourmachine or on a networked drive. Proceed to Chapter 1, Welcome toArcGIS , when you are ready to get started.3introduction.p65302/15/2001, 8:44 AM

introduction.p65402/15/2001, 8:44 AM

1Welcome to ArcGISIN THIS CHAPTER What can you do with ArcGIS? ArcGIS as a single-user GIS ArcGIS as a multiuser GIS Sample GIS tasks Tips on learning ArcGISWelcome to ArcGIS, ESRI s premier GIS software. You can do virtuallyany GIS job at any scale of complexity with ArcGIS, from conducting asingle analysis project on your own to implementing a vast, multiuser,enterprisewide GIS for your organization.Use this book to learn what GIS is all about, and in just a short time youcan begin to apply ArcGIS for all of your GIS needs.Today, GIS is used by thousands of different organizations and hundreds ofthousands of individuals to access and manage fantastically varied sets ofgeographically related information.In this chapter, you will find samples of real-world uses of ArcGIS, a briefdiscussion of the different ways that GIS is used, some examples of howArcGIS lets you use central GIS functions and, finally, some directions forlearning more about ArcGIS.5ch01.p65502/15/2001, 9:17 AM

What can you do with ArcGIS?A tax assessor s office producesland use maps for appraisers andplanners.A water department finds thevalves to isolate a ruptured watermain.A police department studiescrime patterns to intelligentlydeploy its personnel and tomonitor the effectiveness ofneighborhood watch programs.An engineering departmentmonitors the condition of roadsand bridges and producesplanning maps for naturaldisasters.A transit department producesmaps of bicycle paths forcommuters.A wastewater departmentprioritizes areas for repairs afteran earthquake.6ch01.p65GETTING STARTED WITH ARCGIS602/15/2001, 9:17 AM

A telecommunication companystudies the terrain to findlocations for new cell phoneantennae.A hydrologist monitors waterquality to protect public health.A biologist studies the impact ofconstruction plans on awatershed.A pipeline company finds theleast-cost path for a newpipeline.An electric utility models itscircuits to minimize power lossand to plan the placement of newdevices.A meteorologist issues warningsfor counties in the path of asevere storm.WELCOME TO ARCGISch01.p657702/15/2001, 9:17 AM

A business evaluates locationsfor new retail outlets byconsidering nearbyconcentrations of customers.An emergency managementagency plans relief facilities bymodeling demand andaccessibility.A police dispatcher finds thefastest route to an emergency.A water resource manager tracesupstream to find the possiblesources of a contaminant.A fire fighting team predicts thespread of a forest fire usingterrain and weather data.8ch01.p65GETTING STARTED WITH ARCGIS802/15/2001, 9:17 AM

Unique projects to daily businessYou can use ArcGIS in different ways, depending on thecomplexity of your needs.Some people use ArcGIS primarily as a single-usermapping and analysis tool, usually in the context of a welldefined, finite project. This common use of ArcGIS issometimes called project GIS. Other people use ArcGIS ina multiuser system designed to serve an organization songoing needs for geographic information. Multiuser GISis sometimes divided into departmental and enterprise GIS,according to a system s level of complexity and integrationwith the day-to-day operation of an organization.This book presents ArcGIS in the context of project GISbecause a project is a good, self-contained way to explore avariety of basic GIS functions.Project GISIn a GIS analysis project, an analyst faces a variety of tasksthat can be grouped into four basic steps.The first step is to convert a question, such as Where isthe best place for a new building? or How many potentialcustomers are near this store? , into a GIS database designand an analysis plan. This involves breaking the questioninto logical parts, identifying what layers of data will beneeded to answer each part, and developing a strategy forcombining the answers to each part of the question into afinal answer.The next step is to create a database that contains thegeographic data required to answer the question. This mayinvolve digitizing existing maps, obtaining and translatingelectronic data from a variety of sources and formats,making sure the layers are of adequate quality for the task,making sure the layers are in the same coordinate systemand will overlay correctly, and adding items to the data totrack analysis result values. Personal workspaces of filebased data and personal geodatabases are used to organizeproject GIS geodatabases.The next step is to analyze the data. This usually involvesoverlaying different layers, querying attributes and featurelocations to answer each logical part of the question,storing the answers to the logical parts of the question, andretrieving and combining those answers to provide acomplete answer to the question.The final step in a project-based analysis is tocommunicate the results of the analysis, usually to peoplewho do not use GIS and who have different levels ofexperience in dealing with maps. Maps, reports, and graphsare all used, often together, to communicate the answer tothe question.Multiuser GISIn a multiuser GIS, people in an organization from a fewin a single office to hundreds in different branches usethe GIS in different ways to support their daily tasks.Departmental GIS refers to systems developed within asingle department to support a key function of thedepartment. For example, a planning department mightroutinely use GIS to notify property owners of proposedzoning changes near their property.A departmental GIS is usually managed within thedepartment and often has specialists devoted to differentWELCOME TO ARCGISch01.p659902/15/2001, 9:17 AM

tasks. For example, a department might have its ownsystem administrator, digitizer, and GIS analyst.Departmental GIS is often customized to automate andstreamline procedures. For example, a planning departmentcould use a GIS application that finds the names andaddresses of parcel owners within a designated area andautomatically generates notification letters.The functions of a multiuser GIS are like those of a projectGIS, but on a larger scale and operating in a continuous,cyclical fashion. Planning is crucial for multiuser systems,but the rewards including increased operationalefficiency, better allocation of scarce resources,consistency of information, and better-informeddecisions are tremendous.An enterprise GIS spans departments in an organization.These large systems support multiple functions of anorganization, from daily business to strategic planning. Anenterprise GIS is usually managed as a part of theorganization s information technology infrastructure. Forexample, a city s enterprise GIS integrates the businessfunctions of building and maintaining the city. Theengineering department builds the infrastructure for asubdivision using the same geodatabase that the planningdepartment and assessor use to do their jobs.An organization s entire network becomes the platform foran enterprise GIS. To provide access to many users, anenterprise GIS stores data in commercial relationaldatabase management systems (RDBMSs), such asOracle , Informix Dynamic Server, andMicrosoft SQL Server , that have been spatially enabledby ESRI s ArcSDE (formerly SDE ) software.Using ArcSDE allows GIS data to be viewed and edited bymany people simultaneously. To make the most of anetworked system s capabilities, multiple seats of keyapplications, such as ArcCatalog , ArcMap , andArcToolbox , are deployed on desktop machines acrossan organization. Servers supply them with data and performprocessor-intensive tasks.10ch01.p65GETTING STARTED WITH ARCGIS1002/15/2001, 9:17 AM

Tasks you perform with ArcGISWhether you use GIS in a project or multiuserenvironment, you can use the three ArcGIS desktopapplications ArcCatalog, ArcMap, and ArcToolbox todo your work.ArcCatalog is the application for managing your spatialdata holdings, for managing your database designs, and forrecording and viewing metadata. ArcMap is used for allmapping and editing tasks, as well as for map-basedanalysis. ArcToolbox is used for data conversion andgeoprocessing.ArcCatalog provides a framework for organizing large anddiverse stores of GIS data.Different views of your data help you quickly find whatyou need, whether it is in a file, personal geodatabase, orremote RDBMS served by ArcSDE.Using these three applications together, you can performany GIS task, simple to advanced, including mapping, datamanagement, geographic analysis, data editing, andgeoprocessing.ArcCatalogArcCatalog lets you find, preview, document, and organizegeographic data and create sophisticated geodatabases tostore that data.WELCOME TO ARCGISch01.p65111102/15/2001, 9:17 AM

You can use ArcCatalog to organize folders and file-baseddata when you build project databases on your computer.You can also view and update metadata, allowing you todocument your datasets and projects.You can create personal geodatabases on your computerand use tools in ArcCatalog to create or import featureclasses and tables.12ch01.p65GETTING STARTED WITH ARCGIS1202/15/2001, 9:17 AM

You can symbolize your data in a wide variety of ways.ArcMapArcMap lets you create and interact with maps. In ArcMap,you can view, edit, and analyze your geographic data.You can query your spatial data to find and understandrelationships among geographic features.WELCOME TO ARCGISch01.p65131302/15/2001, 9:17 AM

You can create charts and reports to communicate yourunderstanding with others.With ArcMap, you can create maps that integrate data in awide variety of formats including shapefiles, coverages,tables, computer-aided drafting (CAD) drawings, images,grids, and triangulated irregular networks (TINs).ArcToolboxArcToolbox is a simple application containing many GIStools used for geoprocessing.You can lay out your maps in a what-you-see-is-what-youget layout view.14ch01.p65GETTING STARTED WITH ARCGIS1402/15/2001, 9:17 AM

Simple geoprocessing tasks are accomplished throughform-based tools.Accessing the ArcGIS desktop applicationsThe ArcGIS desktop applications can be accessed usingthree software products, each providing a higher level offunctionality. ArcView provides comprehensive mapping andanalysis tools, along with simple editing andgeoprocessing tools.More complex operations can be done with the aid ofwizards. ArcEditor includes the full functionality of ArcView,with the addition of advanced editing capabilities. ArcInfo extends the functionality of both to includeadvanced geoprocessing.Note that there are two versions of ArcToolbox: thecomplete ArcToolbox, which comes with ArcInfo, and alighter version of ArcToolbox, which comes with ArcViewand ArcEditor.ArcToolbox for ArcInfo comes with a complete,comprehensive set of tools (well over 150) forgeoprocessing, data conversion, map sheet management,overlay analysis, map projection, and much more.ArcToolbox for ArcView and ArcEditor contains more than20 commonly used tools for data conversion andmanagement.You can use this book with ArcView, ArcEditor, or ArcInfosince it uses functionality common to all three softwareproducts.See What is ArcGIS? for more information on ArcView,ArcEditor, and ArcInfo.WELCOME TO ARCGISch01.p65151502/15/2001, 9:17 AM

Tips on learning ArcGISThis book is intended to help you learn the basics ofArcGIS. You can use the other books that come withArcGIS to supplement the information in this book and tolearn more about other tasks you can perform usingArcGIS.The online Help system in ArcGIS also provides a wealthof information on using the software. Just click the Helpbutton on any toolbar or dialog box. To get moreinformation, see Using this Help system under the Helptopic Getting more help .When you want quick information about how to do aspecific task, you can look it up in three handy referencebooks: Using ArcCatalog, Using ArcMap, and UsingArcToolbox. These books are organized around specifictasks. They provide answers in clear, concise steps withnumbered graphics. Some of the chapters also containbackground information if you want to find out more aboutthe concepts behind a task.Building a Geodatabase provides a step-by-step guide tobuilding a geodatabase and implementing your geodatabasedesign in ArcGIS.Two other books, Modeling Our World and The ESRIGuide to GIS Analysis, present the concepts behind GISdata models and geographic analysis, respectively.The What s next? section at the end of this book listsadditional resources for learning ArcGIS and for gettinghelp in completing your own GIS projects.16ch01.p65GETTING STARTED WITH ARCGIS1602/15/2001, 9:17 AM

Exploring ArcCatalog and ArcMapIN THIS CHAPTER Introducing ArcCatalog Viewing data in ArcCatalog Connecting to data Introducing ArcMap Working with maps Exploring a map Adding a layer to a map Adding features from a database Changing layer symbolization Adding labels2Maps are the most commonly used tools for understanding spatial information. Whether you do analysis or editing, produce wall maps or illustratereports, design GIS databases or manage them when you work with GISyou work with maps. ArcMap allows you to work with all of your geographic data in maps, regardless of the format or location of the underlyingdata. With ArcMap, you can assemble a map quickly from predefinedlayers, or you can add data from coverages, shapefiles, geodatabases, grids,TINs, images, and tables of coordinates or addresses.Two other GIS applications ArcCatalog and ArcToolbox are designed towork with ArcMap. In ArcCatalog, you can browse, organize, and document your data and easily drag and drop it onto an existing map in ArcMap.Using the tools in ArcToolbox, you can project and convert data. If you areworking in ArcInfo, ArcToolbox also has tools for sophisticatedgeoprocessing. It has never been easier to use the power of GIS.In this chapter, you will create a map for a planning meeting of theGreenvalley City Council. You will use ArcCatalog to find the data andproduce the map in ArcMap. Laying out a map Saving a map Printing a map What’s next?17ch2.p651702/16/2001, 8:56 AM

Introducing ArcCatalogArcCatalog is the tool for browsing, organizing,distributing, and documenting an organization s GIS dataholdings.ArcCatalog starts, and you

ArcGIS as a single-user GIS ArcGIS as a multiuser GIS Sample GIS tasks Tips on learning ArcGIS Welcome to ArcGIS, ESRI s premier GIS software. You can do virtually any GIS job at any scale of complexity with ArcGIS, from conducting a single analysis project on your own to implementing a vast, multiuser,

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