Can't figure this out: I create a figure, add some axes, define data to be
plotted as a contourf + contour on top and then add some patches to hide some
regions of my plot.
The patches hide the contourf correctly, as expected, but not the contour
lines...
Could someone telle me whether I'm doing something wrong ?
Below are the code lines.
I'm using python 2.4, matplotlib 0.91.2
Thanks in advance,
Aure
#--
pylab.clf()
fig = pylab.figure(figsize=(7.,3.8),dpi=100,facecolor='white')
axes1 = fig.add_axes((.),label='axes1')
axes2 = fig.add_axes((.),label='axes2')
axes3 = fig.add_axes((.),label='axes3')
#define contour data
contourstep = 0.05
contourx = np.arange(0.01,2.5+contourstep,contourstep)
contoury = np.arange(0.01,4.+contourstep,contourstep)
contourxy1 = np.ones((len(contoury),len(contourx)))
contourxy2 = np.ones((len(contoury),len(contourx)))
x = np.arange(0.,6.,0.01)
for j in range(contourxy1.shape[0]):
for k in range(contourxy1.shape[1]):
newval1=...
newval2=...
contourxy1[j,k] = newval1
contourxy2[j,k] = newval2
#add contour
levels = np.arange(0.0,0.85,0.05)
cf1 =
axes1.contourf(-contourx,contoury,contourxy2,levels,cmap=bone_r,extend = 'max')
#cmap=mpl.cm.gray_r)
cf2 = axes2.contourf(contourx,contoury,contourxy1,levels,cmap=bone_r,extend
= 'max') #cmap=mpl.cm.gray_r)
levels2 = np.arange(0.,.45,0.05)
axes1.contour(-contourx,contoury,contourxy2,levels2,colors='gray')
axes2.contour(contourx,contoury,contourxy1,levels2,colors='gray')
#add patches
axes1.add_patch(mpl.patches.Polygon([(-1.,1),(-2.,1.),(-2.,2.)],
edgecolor='k',
facecolor='w',
))
axes1.add_patch(mpl.patches.Polygon([(-1.,1.),(0.,0.),(0.,1.)],
edgecolor='k',
facecolor='w',
))
axes2.add_patch(mpl.patches.Polygon([(0.,1.),(2.,1.),(2.,2.),(0.,2.)],
edgecolor='k',
facecolor='w',
))
pylab.savefig(outputfilename)
#--
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