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                 Hideo Fujii 
                 
                
                USA 
                1582 Posts  | 
                
                  
                    
                      
                       Posted - 08/11/2017 :  4:16:57 PM
                        
                        
                        
                        
                        
                      
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                       Hi RCJEE, 
  In 2D, line segments intersects easily, but in 3D two lines cross each other very rarely (especially with  the finite precision of computing). Anyway, you can try the following procedure:
  1) Organize your XY data as separate datasets (one column two rows for a line segment). 2) Make Line+Symbol plots from these datasets, and gets all intersection point using the Intersect gadget. 3) For each intersection point, calculate the interpolated Z values of the corresponding 3D line segments.  4) If the two Z values are within a preset tolerance, accept them as intersected. 
  Hope this helps to advance your work.
  --Hideo Fujii OriginLab | 
                     
                    
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