3D GIS interactive editing method: Research and application in glaciology

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.