Study Of GIS Spatial Analysis In Reality Battlefield Environment

As one of the key functions of GIS, there is a problem for spatial analysis, at present ,that is the result of analysis is ideal.There is mainly groovy terrain factor(as slope,aspect,elevateon) and less other environmental factor(as weather,hydrology,soil).Less usefull value is taken from analysis result. By developing of GIS technology, especially of computer,the principium and arithmetic of spatiall analysis are getting perfect.How to enhance the accuracy of spatiall analysis become a problem which need be solved soon at present.This paper study the model,method,frame of GIS spatial analysis in in Reality Battlefield Environment based on environment factor influencing GIS spatial analysis from the point of realistic use and do the experimentation for visibility analysis. The main content and innovation point in this paper:1. Throuth studying the forming factors of reality battlefield environment ,it gets environmentel effect factors and establishes environment effect factors base.2. Based on COM technology ,the paper establishs effect model base of environment factors. The model base can be independent of system and software language to add ,modify,delete and update model.3. Based on traditional GIS spatial analysis , considering the effect of environment factors,it establishs GIS spatial analysis frame in reality battlefield environment and the frame provides COM interface by tight integration method to connect spatial data base,effect factors base,effect model base and complete GIS spatial analysis affecting by environment factors.4. This paper establishes the model for visibility analysis affecting by environment effect factors ,The effect to visibility analysis can be calculated by using precipitation, snowfall and other effect factors.