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