空间数据插值方法的分析与比较

he spatial interpolation method which is included in spatial analysis of Geographic Information System is introduced in this paper.Through specific interpolation operation,using different search strategy of estimated points, it has got relevant data and these interpolation methods are analyzed and compared using this data.The base theory and the arithmetic of the spatial interpolation methods were discussed in this paper.The application,promotion and related issues of spatial interpolation are elaborated.There is no absolutely optimal spatial interpolation method.There is only relatively optimal method in special situation．