WMS 1.1.1 |
WMS 1.1.1 defines three operations: GetCapabilities, GetMap, and GetEigenInfo, with the GetEigenInfo operation being optional. WMS specifies the implementation and use of WMS operations in HTTP (Hypertext Transfer Protocol) Distributed Computing Platform (DCP), and future versions may be able to support other DCPs.
Can be invoked by submitting a request with a URL (Uniform Resource Locator) through a standard Web browser WMS operations. The content organization of the URL depends on the operation being requested. For example, to request a map, you need to specify in the URL the information to be displayed in the map, which part of the earth to display, the coordinate system, the output size of the image, and so on.
Request the WMS service, and the parameters to be passed are included in the form of parameter name = parameter value. In the URL. For example, the address of a WMS service is: http://server/services/wms. When the Get Capa bilities is executed, During operation, the required parameters are SERVICE and REQUEST, and the values are WMS and GetCapabilities respectively. The full URL is: http://server/services/wms?&map=world&SERVICE=WMS&REQUEST=GetCapabilities. Parameter names are not case-sensitive, and the order of the parameters can be in any order. The values of the parameters are case-sensitive, but for some parameter values, the service also ignores case for fault tolerance. URL Should be coded according to W3C standards.