Research On Reconstructing 3D Solid From Orthographic Views And Its Application In Aircraft 3D Recovery

In this paper, a method for reconstructing 3D solids from orthographic views is presented. In the method, a input DXF-file is firstly generated by using AutoCAD system, then the input file is processed and we can acquire a 2D Point_list and a 2D Segment_list. In order to generate 3D vertices and conic edges in the wire-frame model, the characteristics of orthographic projections and five point method is utilized to obtain the algebraic representations of all 2D-projection curves in each view, and then all algebraic forms are converted to the corresponding geometric forms analytically. The 3D vertices and conic edges constitute the wire-frame model. Finally, all possible faces are searched within the wire-frame model, and all true faces are found to assemble the final 3D solids according to the characteristics of orthographic projections and Moebius rule.According to the method mentioned above, a program for reconstructing 3D solids is designed by using Visual C++6.0 Integrated Development. The program can be used to test the method for reconstructing 3D solids is viable or not. There are two major parts in the software, they are assistant module and kernel module. The kernel module is the core of the program.Finally, the author gives a result to prove the method of reconstructing 3D solids in this paper is viable.