Analysis And Research On Reconstructing 3D Object From Wire-Frame

There are tremendous papers evolving the problem of describing a 3D object and reconstructing a 3D object from different data and ways.Although wire-frame has been applied to represent a 3D object for long time, extracting an object from a wire-frame has'not been studied fully. The main reason is a wire-frame usually cannot represent a unique 3D object. A wire-frame is possible to define several different 3D objects according to the vary observers and their observing direction. Although this phenomenon and assertion are well known, yet wire-frame as a graphics medium is still applied in some industry design and manufacture areas nowadays. It is because of that drawing a wire-frame is cheaper and easier rather than drawing a 3D object by solid modeling. For example manufacturing companies often receive order with files of wire-frame representing design of progressive stripe without any geometric and topologic description. From the point of view of manufacturing it is necessary to convert the wire-frame to the representation of 3D objects automatically. Actually the more important question that must be answered is feasibility and uniqueness of the conversion.Extracting wire-frame is important when a 3D object is reconstructed. There are two methods are often used. A method is constructing some separate polyhedrons from vertex and edges of 3D wire-frame and combine the polyhedrons with each other one by one. Another is extracting wire-frame to some candidate faces and joining them up according to the nature of 3D object.In this paper, an algorithm of reconstructing 3D object from wire-frame was put forward. The main idea is to search for feasible panels made of vertex and edges according to the elemental principles of 3D object, and reconstruct 3D object from feasible panels. The acquired 3D object satisfied the restrictive conditions of Euler formula. The common algorithms are difficult to solve the problem of reconstructing of 3D object because of the complexion of reconstructing of 3D object. In the paper, a method was first put forward to reconstruct 3D object from feasible panels, which is different from the idea of reconstructing 3D object from the polyhedrons, and it is easy to be applied in the industry areas.