It's free to use and deploy applications built with this API. When you run the application, the code runs in the browser instead of having to run on the server. This provides a quick and clean client experience.
Copy and paste the example code into your HTML pages to add mapping functionality. You can perform query and geoprocessing tasks on your services and work with the results as features. You can also publish your content as a Google Mapplet. You can perform query and geoprocessing tasks on your services and work with the results as VEShapes. You can also perform geocoding operations and view the results on the base map. These two extensions can be useful if you're already familiar with the Virtual Earth or Google Maps APIs or you want to use the basemaps provided by these services.
Here you can cut and paste code from the online samples, read detailed conceptual help, or browse entries other developers have submitted to the Code Gallery.
If you want to build Web applications that leverage ASP. The Web ADF provides tools and templates for developing. If you've ever worked with any of Microsoft's integrated development environments before, you'll find adding GIS functionality to Web applications in Visual Studio to be much the same--you drag controls from a toolbox onto a form in this case a Web form , set some control properties, and programmatically define how the control works by writing code that responds to events such as mouse clicks.
With the Web ADF, in addition to adding text boxes and buttons, you can add things such as a map and a table of contents directly to your Web form. The Developer Help assumes that you are already familiar with this development environment and understand Web forms, Web controls, assemblies, namespaces, and so on. The Web Mapping Application has the appearance of an application built with Manager; however you do not have to go through the process of creating the application in Manager.
You can deploy the Web Mapping Application as is without writing any additional code or use it as a starting point for creating a custom application. In some cases, you may want to use the code or files included with the Web Mapping Application as a guide for your own projects.
You can use the tools provided with the Web ADF to build a new Web application in Visual Studio without the use of a template or an application previously created in Manager. The application that uses the Web service does not have to be a GIS application, but it may require some piece of GIS functionality that only the server can provide. For example, a bank's Web site may have a feature that displays a list of the three nearest branches when you type in your address.
If the machine hosting the application doesn't have any GIS software installed, a Web service could request the information from a server equipped to handle the GIS analysis of geocoding your address and finding the nearest branches.
For example, in the bank locator application, the Web service might use an ArcIMS service to get the location of the nearest branches. Additionally, Visual Studio provides a number of tools to assist you in working with Web services. For example, an ASP. NET Web service template provides the basic framework to create a custom Web service.
In addition, you can easily consume a Web service in an existing project by adding a Web reference. The 'Getting Started' section in the Developer Help contains additional information to assist you creating a custom application Web service. You can use the Web ADF to make connections to remote services from desktop applications.
In some cases, you may want to provide a client with the rich user interface of a desktop application, while sending some of the GIS work to a server. The Developer Help contains instructions and samples for accessing various types of servers from a desktop application.
The library reference contains more detailed help for each class and member, as well as object model diagrams. You can launch Developer Help from the desktop or within Visual Studio The library reference includes brief descriptions for each class and member in the Web ADF.
Some classes and members have extra remarks and code examples. Additionally, if an assembly has an object model diagram, you can find it in the library reference. You can get to the library reference by following the steps above to open Developer Help.
What's an ADF? When you install the ADFs, you get developer tools that allow you to access the server from four types of clients: Web applications Mobile applications Web services Desktop client applications The following sections provide overviews of what's available for developers of these applications and services.
You can make method calls on, and get and set properties of, a proxy object as if you were working directly with the remote object. Programming ArcObjects remotely is the same as programming ArcObjects for use in desktop applications, but the following are additional details and programming guidelines of which you need to be aware:.
For client applications that want to work with ArcGIS Server using ArcObjects, a local connection must be established, which means you must have access to a service's server object via the SOM. Understanding the library structure and its dependencies and basic functionality helps you navigate through the ArcGIS Server components. The libraries are discussed in dependency order. The following illustration shows libraries 1 through 13, using a number in the upper right corner of the library block.
Libraries 14 through 21 are shown in the illustration at the end of this topic. For a comprehensive guide to all of the libraries in the developer Help system, see ArcObjects namespaces. Object libraries are logical collections of the programmable ArcObjects components, ranging from fine-grained objects for example, individual geometry objects to coarse-grained objects, which aggregate logical collections of functionality for example, an ArcMap object to work with map documents.
This library contains components that expose services used by the other libraries composing ArcGIS. There are a number of interfaces defined in the System library that you can implement. Developers do not extend this library; however, they can extend the ArcGIS system by implementing interfaces in this library. Objects in this library are utility objects that simplify some UI developments. The Geometry library handles the geometry or shape of features stored in feature classes or other graphical elements.
The fundamental geometry objects with which most users interact are point, multipoint, polyline, and polygon. In addition to those top-level entities, there are geometries that serve as building blocks for polylines and polygons.
These are the primitives that compose the geometries. They are segments, paths, and rings. Polylines and polygons are composed of a sequence of connected segments that form a path. A segment consists of two distinguished points—the start and the end points—and an element type that defines the curve from start to end. All geometry objects can have Z, M, and IDs associated with their vertices. The fundamental geometry objects all support geometric operations, such as buffer and clip.
The geometry primitives are not extended by developers. Entities in a GIS refer to real-world features; the location of these real-world features is defined by a geometry and a spatial reference. Spatial reference objects, for both projected and geographic coordinate systems, are included in the Geometry library.
Developers can extend the spatial reference system by adding new spatial references and projections between spatial references. The Display library contains objects used for the display of GIS data.
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