In this chapter, we introduced the concept of tasks in ArcGIS Server. ArcGIS Server provides a number of tasks for commonly used operations in a web mapping application. Attribute and spatial queries are common operations in web mapping applications. To support these queries, the ArcGIS API for JavaScript provides a QueryTask object that can be used to execute these queries on the server. When created, the QueryTask object accepts a URL that points to a layer that will be queried in a map server. Various input parameters to the QueryTask are provided through the Query object. Input parameters can include a where property to perform attribute queries, a geometry property to perform spatial queries, an outFields property to define the set of fields that should be returned, and several other supporting properties. After the query has completed on the server, a FeatureSet object is returned to a callback function defined in the application. The callback function can then display the...
Building Web and Mobile ArcGIS Server Applications with JavaScript
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Building Web and Mobile ArcGIS Server Applications with JavaScript
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Overview of this book
<p>ArcGIS Server is the leading software for developing both web and mobile GIS applications. There are a number of programming languages that you can use to develop applications with ArcGIS Server including JavaScript, Flex, and Silverlight. However, the ArcGIS API for JavaScript is the preferred way of developing your custom applications for ArcGIS Server since it can be used for both web and mobile application development. It’s easy to use and doesn’t require the use of a browser plugin.</p>
<p>This tutorial-based guide provides you with hands-on experience in developing custom web and mobile ArcGIS Server applications with step-by-step style exercises. Along with introducing you to the HTML/CSS/JavaScript technology stack, you will learn to add intuitive geographic layers of information to your map, interactive query and display of spatial data, add user interface widgets, access geoprocessing tasks, and many more in your own web and mobile GIS applications.</p>
<p>With this practical, hands-on guide, you will be able to develop fully-functional online GIS applications with ArcGIS Server using the ArcGIS API for JavaScript. After creating your own map, you will explore how to add geographic layers from a variety of sources including tiled and dynamic map services, add graphics to the map, and stream geographic features to the browser using a FeatureLayer.</p>
<p>Most applications include the specific functionalities implemented by ArcGIS Server as tasks. You’ll learn how to use the various tasks provided by ArcGIS Server including spatial and attribute queries, identification of features, finding features by attribute, and more. Geocoding and geoprocessing tasks are covered in-depth to help you accomplish your task in GIS. Finally, you’ll learn just how easy it is to integrate ArcGIS.com content into your custom developed applications.</p>
<p>This comprehensive guide quickly advances through probing programmatic techniques for building web and mobile GIS applications which will make application development a lot easier!</p>
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Building Web and Mobile ArcGIS Server Applications with JavaScript
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Table of Contents (20 chapters)
Building Web and Mobile ArcGIS Server Applications with JavaScript
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
Introduction to HTML, CSS, and JavaScript
Creating Maps and Adding Layers
Adding Graphics to the Map
The Feature Layer
Using Widgets and Toolbars
Performing Spatial and Attribute Queries
Identifying and Finding Features
Turning Addresses into Points and Points into Addresses
Network Analyst Tasks
Geoprocessing Tasks
Integration with ArcGIS Online
Creating Mobile Applications
Application Design with ArcGIS Templates and Dojo
Index
Customer Reviews