The Research Of Interactive Generating Technology To Irregular Solid Base On VRML

Most object in the nature and handcraft goods which not manufacture by machining are Irregular Solid. Irregular Solid is the solid which form' concavity and protruding change can't be described by math formula, For lacking property maths model to the Irregular solid, majority programme and 3-D graphics software don't offer the function of Irregular Solid directly generating.Irregular Solid,as the paper state, can but be designated to controll concavity and protruding change via Interactive operation which be inflicted on the surface of solid by user, achieving the aim of free sculpting. Want to realize the aim of Irregular Solid free sculpting as the paper state,you must resolve such several question:(1) Interactive mechanism in generating technology.creating a relation between operation and operation object, amending solid'data via operation.(2) Realize of picking up.include picking object and object'point up(3) Establishing of preliminary structure of Irregular solid.(4) Compiling operation which incarnate user's imagine to the solidThis paper surround the several question , probing into a sort of Technology which interactive generating irregular solid Base on VRML.it' s characteristic is that Interactive between user and model puting up on the solid 3-dimention render picture,it's more direct-view than 3DMAX such software which Interacting in 3-view picture interface,it's particularly impointment to art produce.This dissertation mainly includes:the chief trait of VRML and some VRML related techniques.describing the meaning of developing interactive generating technology research of irregular solid base on VRML, describing the process of developing this technology,covering functions describing ,designing and implementing.The system provide interface,user put up operation via mouse,this operation based on solid object model screen edit operation to the file to user.any user who mustn't have VRML syntax knowledge even mustn't know VRML syntax criterion can create VRML file which can be browsed by VRML plug-in.The main work of this dissertation is the study of irregular solid Generating technology research, the aim of developing this system is to provide the WYSIWYG interface for user, with which user can gengrating irregular solid interactively without programming. What they have to do is manipulate the graphics shown in the interface ,the user can generating the irregular solid and control the object of VRML scenes with the drive from graphics during the running time. And the detail of these functions can be implemented by the backstage application.Interactive generating tool of irregular solid base on VRML ,which use the means of this dissertation discussing ,have good agility.it is a good supplement of solid represent to build virtual reality scene.