Research On Interaction Of Multi-View GIS

Geographical information system (GIS) is a system consists of computer software, hardware and data, and personnel to help manipulate, analyze and present information that is tied to a spatial location. And now GIS is an technology which is integrated with CAD, multimedia, communications, internet and virtual reality(VR), etc.In order to improve the ability of Human Computer Interaction(HCI) in GIS, the visualization in data and VR technology are invoked into it. The representation mode of GIS is developed from plan to 3D dimension and VR system.To support more interaction within GIS, this paper propose a multi view HCI model based on three types of visualization mode: plan view, 3D View and virtual reality(VR) view.Plan view: It is the regular 2D GIS interface where the GIS data are displayed in a planer format. The orthophoto map, hill shading overlapped with 2D GIS are included.3D view: In this view the object is described as 2. 5D or 3D geometry. The representation is simple and symbolic: basic geometry without realistic detail.VR view: This is a view to simulate the virtual world. The texture, trees, audio, video and light is add to this view. The purpose of this view is to give a realistic impression of the GIS environment.In this paper, we detailed and deep discussion about the principle, characteristic, and interaction mode of each view. And propose a blue print in GIS project designing, which integrated these views to improve the ability of Human Computer Interaction and the efficiency of selection in using GIS. And implementing a model of a school corner which using VC++, MapObject andGeoVrml to represent this multi view conception. It proved that the tnulti view plan can help to save the resource of hardware and software, and fit for manipulation in GIS operation. The multi view approach is useful in GIS project designing.