Stereo Express of Spatial Geographical Entity

Several method of describe the spatial geographical entity. A sort of method is true scenery model, mainly depend on build a sand table to simulate the three-dimension shape of praxis scenery; One method is general plane, for example, rely on contour line, color gradient and hill shading, the map looker can feel the fluctuant terrain from the tradition plane map; dummy simulation is also a important method, now the technology of computer simulation can reappearance the three-dimension physiognomy and scene on the screen more realer; Another is the method of plane parallax, people´s eyes can separate see the image maps which have definite parallax by the equipment of 3D glasses, HMD, lenticular screen etc, and the vision amalgamation in the brain form third dimension. These theories, characteristic of method and its application on express spatial geographical entity are introduced in this paper.