Design And Development Of Map Service Component Based On Web Service

With development of internet technologies and display of web, WebGIS becomes a focus of GIS development in information society. Internet alerts traditional data access and the way of data publish in a range. WebGIS is a production which internet technologies apply to GIS, and GIS extends through WWW, so WebGIS becomes a popular tool. Web GIS technology makes rapid development in a few years, its application extends many aspects of GIS application, and Web GIS is important part of GIS software. With the depth of professional application, lots of users put forward higher requirements to WebGIS technology, especially quantities of spatial information management and publish, users visit, second development ability and different structure system interoperation .Howerver, Web Service is core technology of . NET, it has distributed, interoperable, integrated features, and it solves WebGIS problems in an extent. The article discusses a popular map service component with standard communication interface and across different program languages and platforms, making use of . NET superiorities and advanced Web Service technologies , so it has good extensibilities. Major tasks are as follows:1: Structure and module design of map service component.2: Design and develop a pair of map symbol library.3: Realize spatial data visualization based on designed map symbol library.4: Realize basic map operation, spatial query and statistical analysis based on spatial data.5: Realize spatial data service interface based on Web Service map service component.