fig=plt.figure()
#ax = fig.add_subplot(111)
ax=plt.axes()
font0 = FontProperties()

outgrid=[[x*y for x in range(testXaxis)] for y in range (levIndRange)]
vmin=0
vmax=testXaxis*levIndRange
height = [v*1000.5 for v in range (levMaxInd)]

colours='terrain'
cmap=plt.cm.get_cmap(colours)
norm=matplotlib.colors.Normalize(clip=False,vmin=vmin,vmax=vmax)
print 'vmax = ',vmax
m=plt.cm.ScalarMappable(cmap=cmap,norm=norm)
m.set_array(outgrid)
plt.imshow(np.flipud(outgrid),cmap=cmap, norm=norm, aspect=stretch)
#ax.imshow(np.flipud(outgrid),cmap=cmap, norm=norm, aspect=stretch)
ax.yaxis.set_major_formatter(FormatStrFormatter('%.0f'))
#plt.axis.YAxis.set_major_formatter(FormatStrFormatter('%.0f')) # 'module' object has no attribute 'set_major_formatter'
plt.yticks([s for s in range(0,levIndRange,levParInt)],[height[v] for v in range(levMinInd-1,levMaxInd-1,levParInt)])
plt.xticks([1,3,5,7,9,11,13,15,17,19])
#ax.xaxis.set_ticks([1,3,5,7,9,11,13,15,17,19])
#ax.yaxis.set_ticks([height[v] for v in range(levMinInd-1,levMaxInd-1,levParInt)])    # This one line makes the plot collapse
plt.ylabel(yLabel)
plt.xlabel(xLabel)

ax.yaxis.set_major_formatter(FormatStrFormatter('%.0f'))
ax.xaxis.set_ticks([1,3,5,7,9,11,13,15,17,19])
ax.yaxis.set_ticks([height[v] for v in range(levMinInd-1,levMaxInd-1,levParInt)])    # This one line makes the plot collapse