Abstract :
Although the theory and method of 3D GIS interactive editing is scarce and primitive, the need to develop it has become gradually urgent. Editing in 3D environment by a digital control plane, the method can deal with some geometry efficiently, such as point, line, and polygon, etc. Moreover, based on Open GL, a 3D GIS editorial system in t he form of COM plug2in embedded in Arc GIS 3D environment is developed. The result indicates t hat t he met hod is easy and feasible, and can support much work greatly in geographical field.