gistfile1.pytb

Traceback (most recent call last):
  File "./plot.py", line 116, in <module>
    plot_planes(s)
  File "./plot.py", line 75, in plot_planes
    P.tricontour(x, y, fl, [0.5], colors='black')
  File "/usr/lib/pymodules/python2.7/matplotlib/pyplot.py", line 3090, in tricontour
    ret = ax.tricontour(*args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/axes.py", line 8922, in tricontour
    return mtri.tricontour(self, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/tri/tricontour.py", line 280, in tricontour
    return TriContourSet(ax, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/tri/tricontour.py", line 36, in __init__
    ContourSet.__init__(self, ax, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/contour.py", line 780, in __init__
    self._process_args(*args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/tri/tricontour.py", line 47, in _process_args
    tri, z = self._contour_args(args, kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/tri/tricontour.py", line 82, in _contour_args
    Triangulation.get_from_args_and_kwargs(*args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/tri/triangulation.py", line 172, in get_from_args_and_kwargs
    triangulation = Triangulation(x, y, triangles, mask)
  File "/usr/lib/pymodules/python2.7/matplotlib/tri/triangulation.py", line 72, in __init__
    dt = delaunay.Triangulation(self.x, self.y)
  File "/usr/lib/pymodules/python2.7/matplotlib/delaunay/triangulate.py", line 123, in __init__
    self.hull = self._compute_convex_hull()
  File "/usr/lib/pymodules/python2.7/matplotlib/delaunay/triangulate.py", line 158, in _compute_convex_hull
    hull.append(edges.pop(hull[-1]))
KeyError: 5685