Hello, I have the following function as an example. You can see I started to
play with one of the demos to put a colorbar on it. I'm a little confused
how to make this work, as on my figure I have several 'collections'. The
other examples I have seen deal with one collection. Maybe someone could
show how to make a color bar here??
Thanks!
#!/usr/bin/env python
import matplotlib as mpl
import numpy as np
import matplotlib.pyplot as plt
def plot_fill_between(array=None):
""" plot with fill_between for a cumsum vector """
# Set up plotting environment
fig = plt.figure()
nx = 40
ny = 20
if array is None:
X = range(nx)
array = np.random.rand(nx,ny)
array = np.cumsum(array,axis=1)
Nc = np.array([float(i)/ny for i in range(ny)])
norm = mpl.colors.normalize(Nc.min(),Nc.max())
jet = plt.cm.get_cmap('jet')
for i in range(ny-1):
cmap = jet(norm(Nc[i]))
if i == 0:
plt.fill_between(X,np.zeros(len(array[:,i])),array[:,i],color=cmap,label='%s'
% i)
plt.fill_between(X,array[:,i],array[:,i+1],color=cmap,label='%s' %
i)
plt.title('Fill Between Demo')
## ListedColormap
#ax2 = fig.add_axes([0.15, 0.05, 0.75, 0.05])
#cmap = mpl.colors.ListedColormap(range(H.numageclasses))
#cmap.set_over('0.25')
#cmap.set_under('0.75')
## If a ListedColormap is used, the length of the bounds array must be
## one greater than the length of the color list. The bounds must be
## monotonically increasing.
#bounds = range(H.numageclasses+1)
#norm = mpl.colors.BoundaryNorm(bounds, cmap.N)
##cb2 = mpl.colorbar.ColorbarBase(ax2, cmap=cmap,
## norm=norm,
## # to use 'extend', you must
## # specify two extra boundaries:
## boundaries=[0]+bounds+[13],
## extend='both',
## ticks=bounds, # optional
## spacing='proportional',
## orientation='horizontal')
##cb2.set_label('Units')
return fig
if __name__ == "__main__":
fig = plot_fill_between()
plt.show()
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