hi there, I stumbled into yet another problem, see script attached. Now
there are 10 pixels and 10 label values on each axis, but I get only
half the ticks, and as a result half the labels get discarded... How can
I specify the number of ticks it uses?
Note that I could use plt.pcolor(np.array(EMINS),np.array(ROIS),d) and
at least the labelling would be correct, but the pixels are now more or
less wide depending on the interval between values, which was not
intended....
thanks a lot in advance for your help,
Johann
Johann Cohen-Tanugi wrote:
Hello, how can I center axis tick labels, so that the labels ends up at
the center between 2 ticks.
thanks in advance,
Johann
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import matplotlib.pyplot as plt
import numpy as np
d = np.array([[ 157.95277364, 153.43173695, 146.13158977, 141.54839658,
144.52643315, 124.31540514, 121.25041319, 94.97418322,
64.74824341, 27.69885997],
[ 166.42505119, 161.6584763 , 152.96285478, 149.94707942,
148.95740797, 135.38872561, 131.60396144, 104.24714341,
69.36953504, 28.22984027],
[ 180.18354975, 175.80862266, 163.19215239, 161.79956642,
157.49777483, 143.04049195, 144.89181555, 116.46328816,
84.029379 , 31.41834047],
[ 189.67039827, 186.61746661, 177.39989771, 178.12248221,
172.37834168, 152.80223899, 164.45528247, 141.6235974 ,
115.46930152, 61.55211961],
[ 157.09501131, 154.46700398, 145.35801984, 151.56479068,
141.09453561, 130.09545669, 135.6759625 , 120.79901256,
98.09147933, 59.62847031],
[ 141.05859093, 137.90739078, 128.05909052, 136.6963394 ,
134.19701193, 129.56047371, 131.74742858, 119.75074075,
98.92957831, 68.68764481],
[ 125.13744117, 123.38731079, 123.93182985, 126.59952041,
127.12588879, 124.92796151, 132.8109024 , 133.95243655,
121.58352334, 99.01494134],
[ 82.49855115, 82.5109548 , 83.65697445, 85.33888768,
83.28319399, 83.81724338, 93.04441865, 91.65137654,
86.05573836, 75.8860952 ],
[ 55.3082678 , 56.98568928, 54.49724808, 52.80536213,
52.41055057, 56.78071926, 62.01649764, 65.72762368,
56.78034563, 53.16029942],
[ 23.8194714 , 24.16684446, 22.86100321, 23.87513858,
22.2958795 , 27.16573087, 28.94610545, 38.55528517,
43.05176998, 41.46975149]])
ROIS=[1.0,0.9,0.8,0.7,0.6,0.5,0.4,0.3,0.2,0.1]
EMINS=[100,125,150,175,200,250,300,500,700,1000]
fig = plt.figure()
ax = fig.add_subplot(111)
plt.pcolor(d)
ax.set_xticklabels(EMINS)
plt.xlabel("Emin(MeV)")
ax.set_yticklabels(ROIS)
plt.ylabel("Roi(deg)")
plt.colorbar()
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