Re: [Matplotlib-users] creating mesh data from xyz data

Hi Giuseppe

you can load your datafile with pylab... see my little function which
i'm using

import pylab as pl

def readXY(filename):

   x,y,z = pl.load(filename, unpack=True)
   return x,y,z

(X, Y, Z) = readXY("datafile.dat")

after that you have your values in the arrays X;Y;Z

kind regards



Giuseppe Aprea wrote:
> Hi list,
> 
> I have some files with data stored in columns:
> 
> x1     y1     z1
> x2     y2     z2
> x3     y3     z3
> x4     y4     z4
> x5     y5     z5
> .......
> 
> and I need to make a contour plot of this data using matplotlib. The
> problem is that contour plot functions usually handle a different kind
> of input:
> 
> X=[[x1,x2,x3,x4,x5,x6],
> [x1,x2,x3,x4,x5,x6],
> [x1,x2,x3,x4,x5,x6],...
> 
> Y=[[y1,y1,y1,y1,y1,y1],
> [y2,y2,y2,y2,y2,y2],
> [y3,y3,y3,y3,y3,y3],.....
> 
> Z=[[z1,z2,z3,z4,z5,z6],
> [z7,z8,zz9,z10,z11,z12],....
> 
> I usually load data using 3 lists: x, y and z; I wonder if there is
> any function which is able to take these 3 lists and return the right
> input for matplotlib functions.
> 
> cheers
> 
> giuseppe
> 
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