Out of bound parameters

[hetmankp]

Reported in minecraftforum.net thread:

C:\...\mcmerge-win32-v0.5.3>mcmerge.exe merge --smooth=1.7 --river-width=16 --valley-width=32 --rivercentre-deviation=-4,4 --river-centre-bend=10.2 --river-width-deviation=-2,2 --river-width-bend=4.0 --narrow-factor=3 "%appdata%\.minecraft\saves\world"
Pure-python NBT module loaded.
Getting saved world contour...
Loading world...

Merging chunks:

... 0/800 (0.0%)
Traceback (most recent call last):
File "mcmerge.py", line 887, in <module>
File "mcmerge.py", line 593, in erode
File "mcmerge.py", line 319, in reshape
File "mcmerge.py", line 169, in erode
File "mcmerge.py", line 137, in with_river
File "carve.pyc", line 285, in make_mask
File "carve.pyc", line 255, in make_mask_straights
File "carve.pyc", line 125, in river_shore
File "carve.pyc", line 96, in series
File "scipy\interpolate\interpolate.pyc", line 274, in __init__
File "scipy\interpolate\interpolate.pyc", line 771, in splmake
File "scipy\interpolate\interpolate.pyc", line 492, in _find_smoothest
TypeError: only length-1 arrays can be converted to Python scalars

Comments:
removal of "--river-centre-bend=10.2" made it work again. maybe extend array or suppress values higher than 10?