Ex parte MASUDA et al. - Page 2




          Appeal No. 96-2022                                                          
          Application No. 08/132,943                                                  


          from the examiner’s rejection of claims 1-8, which constitute               
          all the claims remaining in the application.                                
          The disclosed invention pertains to a method and                            
          apparatus for developing solid model representations of a                   
          shape which has been defined by three orthographic views of                 
          the shape as two-dimensional data.                                          
          Representative claims 1 and 6 are reproduced as                             
          follows:                                                                    
               1.   A solid model construction method in which a shape                
          of a solid model is inputted in the form of three orthographic              
          views to an image processing unit for constructing a solid                  
          model from said orthographic views, comprising:                             

                    obtaining three-dimensional data of three-                        
          dimensional definite lines forming a stereographic wire frame               
          corresponding to patterns from two-dimensional data of                      
          vertices and definite lines of said patterns given as said                  
          three orthographic views;                                                   
                    dividing individual regions formed by the plurality               
          of three-dimensional definite lines cells having faces and                  
          volumes;                                                                    
                    holding the divided cells as a non-manifold data                  
          structure;                                                                  
                    testing said three orthographic views to evaluate                 
          whether or not there is a conflict in the boundary relation                 
          between said cells; and                                                     
                    a step for constructing a solid model by combining                
          said individual cells according to a combination with no                    
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