Re: [Matplotlib-users] Colormap using (UV)coordinates from file

[Linda_swe <po...@mt...>]

This one is from Jeff here at the forum and it does work. But the smoothing
of the color values inbetween the countour is not so good. How to improve
that ?

Also,i am still searching for a load .csv example to use with pcolor or
countour.


from matplotlib.mlab import load
import matplotlib.pyplot as plt 
import numpy as np

data = load("C:/Users/Pontus/data.txt")
# need to know nlons and nlats beforehand!
nlons = 8; nlats = 25
X = data[0::nlats,0]
Y = data[0:nlats,1]
# data is in nlons,nlats order in file, need to transpose
Z = data[:,2].reshape(nlons,nlats).transpose()
X,Y = np.meshgrid(X,Y)
CS = plt.contourf(X,Y,Z,20)
plt.show()

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