RESEARCH ON THE INTEGRATION METHOD OF MINE 3D DATA MODEL

D spatial deta model is the center of the research on 3D GIS.As the complex of 3D aim and application,a data model could not meet different needs,and the integration of data model becomes the important direction of the development of 3D data model.In the paper,according to the spatial feature of mine,an integration of data model based on BR and Octree is presented.