Nicolas Girard wrote:
>Hi all,
>I need to use contour with data for x,y and z coordinates. My data is
>contained in 3 numarray arrays called xi,z and rho.
>
>I can call contour with either of these 3 arrays without any problem. But when
>it comes to pass the 3 arrays, here's the error I get:
>
>In [19]:contour(xi,z,rho)
>---------------------------------------------------------------------------
>exceptions.TypeError Traceback (most recent
>call last)
>
>/home/ngirard/.python/<console>
>
>/usr/lib/python2.4/site-packages/matplotlib/pylab.py in contour(*args,
>**kwargs)
> 1784 hold(h)
> 1785 try:
>-> 1786 ret = gca().contour(*args, **kwargs)
> 1787 draw_if_interactive()
> 1788 except:
>
>/usr/lib/python2.4/site-packages/matplotlib/axes.py in contour(self, *args,
>**kwargs)
> 1251
> 1252 def contour(self, *args, **kwargs):
>-> 1253 return self._contourHelper.contour(*args, **kwargs)
> 1254 contour.__doc__ = ContourSupport.contour.__doc__
> 1255
>
>/usr/lib/python2.4/site-packages/matplotlib/contour.py in contour(self, *args,
>**kwargs)
> 675 tlinewidths = [(w,) for w in linewidths]
> 676
>--> 677 C = _contour.Cntr(x, y, z.filled(), z.mask())
> 678 for level, color, width in zip(lev, tcolors, tlinewidths):
> 679 nlist = C.trace(level, points = 1)
>
>TypeError: Arguments x, y, z, (optional) mask must be arrays.
>
>
>
>
>I really don't understand where the problem is. All arrays are of the same
>nature:
>
>In [20]:for a in [xi,z,rho]:
> .20.: shape(a)
> .20.: type(a)
> .20.:
>Out[20]:(1025, 1024)
>Out[20]:<class 'numarray.numarraycore.NumArray'>
>Out[20]:(1025, 1024)
>Out[20]:<class 'numarray.numarraycore.NumArray'>
>Out[20]:(1025, 1024)
>Out[20]:<class 'numarray.numarraycore.NumArray'>
>
>
>
>Do you have any idea to help me solve this problem ?
>
>Thanks in advance,
>cheers,
>Nicolas
>
>
>
>
>
Nicolas: Sounds like you need to set numerix='numarray'. Try this at
the beginning of your script:
from matplotlib import rcParams
rcParams['numerix']= 'numarray'
-Jeff
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