| The establishment of the WebGIS system of mining damage evaluation and the realization of the timing evaluation, moritoring and prediction of mining subsidence disaster has a very important significance. The paper analyzes the different development technology of WebGIS and the data management technique, contrasts the function of different development software of WebGIS, and selects ArcIMS as the development platform. And the paper also formulates the framework and mechanism of ArcIMS and ArcSDE, and point:; that the key problem of development of WebGIS used ArcIMS is the selection of client and connector and the function enlargement of client. The concrete scheme of the establishment of WebGIS system of mining damage evaluation has been given, and in accordance with the characteristics of mutual operation, the development strategy using all kinds of development techniques has been raised, and the detail scheme of the system of client and server has also been given. The concrete technique method of the achievement of core function has been given. Using the ASP technique, the network calculation of mining subsidence has been realized. Using the ActiveX and Java techniques, the visualization of mining damage evaluation has also been realized. In the last, the paper formulates that the WebGIS system of mining damage evaluation has the characteristic of enla gement in the system function and application scope, and with the enlargement of the system function and application scope, the system will be the important component of digital mine. |
