The Study Of The Key Technology Of A Kind Of Spatial Data Organization And Its Application On Web

SVG is W3C Recommendation Specification which is a completely open two-dimensional vector data format. At present, geospatial data can be encoding into SVG format. But it is not properly resolved that how to dynamic publish SVG graphics from the spatial management engineer, realize the complex spatial analysis of SVG vector graphics and the SVG edit function of WebGIS .This paper introduces research results at home and abroad firstly.Then It proposes a new development direction of WebGIS , which is based on SVG and Oracle Spatial.Then it brings forward the core technology of the paper——the realization process of the SVG and SDO_GEOMETRY mutual conversion, gives the analysis of arithmetic execution efficency arithmetic and the result of experiment test.Then it gives Web application model on the conversion technology. It analizes the whole logic structure, operation mechanism and architecture of this model in detail.In the process of realizing the model,many technology points have been accomplished: the encapsulation and realization of the client tier commands, the design of database,downloading a large amount of data, the dynamic updating of SVG page on client tier, the design of the client tier.Then it demonstrates some function of the model. At last, it gives the impersonal evaluation of the model, and makes the next step.