functions in bowtie.i - n

             nbow, map  
          or nbow, file  
          or nbow, rt, zt  
          or nbow, rt, zt, ireg  
 
     prints information about topological oddities in a mesh.  
     MAP is a bowtie map as returned by the bowtie function.  
     FILE is a binary file containing rt, zt, and ireg arrays.  
     RT, ZT and IREG are 2-D arrays defining a quadrilateral mesh.  
     The information printed includes the zone index (corner with  
     the largest indices) of zones which are concave (boomerangs)  
     or bowtied, and of zones with negative area.  You can set  
     the global variable nbow_negative to 1 to reverse the default  
     sense of positive area.  By default, only the first 10 zones  
     in each category are printed; use the all=1 keyword argument  
     to print a complete (and maybe very long) list.  
interpreted function, defined at i/bowtie.i   line 77  

             nbow_negative  
 
     default value is 0  
     set to 1 to reverse the sense of positive area for the nbow function  
keyword,  defined at i/bowtie.i   line 70