Research And Development Of Visual VRML Editor

VRML is a kind of file layout used to describe interactive 3D-scene, which is distributive, interactive, independent of flat form and multimedia integrated, so it can be used in extensive fields. Now in China, there is no effective visual VRML editor satisfying great users' demands of establishing VRML files.Based on this, this paper presents a research on visual VRML editors, which make inner data structure of VRML files, the 3D-scene-view and route edited visually, In this paper, a VRML visual integral editor named VisualVRMLEditor was designed and implemented in the frame of IVF of Open Inventor, using VC++ development tools,which makes nodes of VRML and route edited visually. It also constructs a node-tree-view to describe the inner data structure of VRML files and a 3D-scene-view to show and operate the 3D-view which is described by the VRML files; it constructs a route-view too, making intangible mechanisms visual. This paper describes the VisualVRMLEditor from the soft engineering points, including function, design and realization; it also brings forward the deficiency of the VisualVRMLEditor and the suggestion for it. Finally, it expatiates some experience in the exploitation process.The innovation of this paper: Firstly, it can bold the node-tree-view and the 3D-scene-view, which is convenient for users to operate the nodes of the VRML files and handle the 3D objects with the mouse directly in the 3D-scene-view; Secondly, it can make invisible information like routes visual and make users edit routes visually, without memorizing the fussy VRML grammar rules, which increases the efficiency of editing VRML files.