| WebGIS is important content of geographic information system studies, WebGIS can make a share of space data information come true in every fields and departments all over the society, improve efficiency of maintaining, releasing, inquiring of space data. In accordance with developping driection of domestic WebGIS at present, this text designs and makes a WebGIS which have the function of shortest route inquiring.This text raised the model of WebGIS based on .NET framework on traditional three layers application structure model, then introduces common shortest route algorithm, analyzes in deepth and improves Dijkstra algorithm. At last, it completes a WebGIS based on .NET and MapXtreme with Dijkstra algorithm, find improve Dijkstra algorithm superior to the classical Dijkstar algorithm. |
