Research Of WebGIS Based On Spatial Vector Data

WebGIS is a geographic information system which can process,analysis and display the spatial data on Internet.WebGIS as an application of WebServices do a huge impact on Internet,It should achieve the purpose of the vector data compression and interpolation,optimization,improving the WebGIS.In the development of GIS,interpolation technology has been widely used in the establishment of Digital Terrain Model(DTM).In the establishment of Digital Elevation Model(DEM),after data collection,use the appropriate data interpolation methods can guarantee the model accuracy.Vector data interpolation applicate in GIS, from the data collected to geographic information encoding,When research on processing satellite photos,remote sensing picture,in particular on the establishment largearea of DEM,just need to make interpolation of known eigenvalue point or known regional for analysis.So vector data is applied to the WebGIS in data processing stage is extremely important step.On the establishment of " Digital XAUAT - Xi'an University of Architecture and Technology WebGIS" and "XAUAT DEM " is very important.This paper make a basement of analyze key technologies and architectures of WebGIS for spatial data infrastructure,combined with the interpolation method,the establishment of spatial dynamic model and organization of spatial data.Make a description on the system of development platform Mapxtreme of WebGIS Framework,explaining the key interfaces and classes,explain the table design,table metadata access,and connection of DBMS and feature collection,then immediately defines geocoding namespaces,and make geocoding on the spatial location. Finally the paper gives the development steps of "Digital XAUAT-Xi'an University of Architecture and Technology WebGIS" map display system,describes how to build a development platform,making thematic maps,and import MWS file.