摘要
The geographical information technology of the three-dimension is one of the new trends of scientific development of GIS at present.It represents the geographical space phenomenon for users with the fictitious visual technology of the three-dimension,can not only express the level relation among the space targets but also can describe and express the cube of relation between them.3D GIS platform emulation shows the three-dimensional scenes of ground form,geological body exhibition cloth,the visual application of the geological three-dimension,use the family to experience the environment from a lot of angles,produce the feeling on the spot in person.The three-dimension of the geological phenomenon is visual can learn the space exhibition cloth law that workers analysed in depth the geological body benefitting,especially through the change of the view point,widen the vision which observes the space exhibition cloth of geological body.