@Ararticle{Yan and Tang :1994,
  author=       {Qing-Wen Yan et.al},
  year  =       { 1994},
  keywords =    { :RECONSTRUCTION,ORTHOGRAPHIC VIEWS,3D WIREFRAME MODEL}
  institution=  {Department of Computer Science and Engineering,WrightState University,Dayton,Ohio,USA},

   title =      { Efficient algorithm for the reconstruction of 3D objects from orthographic projections},
  volume=       {26},   
  number =      { 9},
  month =       { September},
  year  =       { 1994},
  pages =       { 669-699 },
  annote=       {
          This paper describes  algorithm of reconstruction
  of of solid models from orthographic views,This algorithm is based on
  & Yan's polyhedral object construction algorithm
  construction algorithm.The basic steps of the algorithm

    1. input projection data

    2  partition of 2D edges

    3. convert 2D vertices into 3D edges and vertices

    4.Generate planes from 3D vertex and edge list

    5.planar Graph generation

    6.Face loop generation

    7.Examining faceloops to discover cutting edges and vertices

    8.Constructing body loops from face loops

    9. Combining bo0dy loops to form exact object

           This algorithm handles the reconstruction of 3D poly hedral solid models

from their planar views. The algorithm is guaranteed to find to find the correct

solutions from the inputs,provided that the input views are correct.But this

algorithm can not handle the curved objects

}