Yes, sorry about that. I hope this now works.
Tanim Islam
On Mon, 30 Apr 2012, Benjamin Root wrote:
On Mon, Apr 30, 2012 at 2:02 PM, Tanim Islam <tanim.is...@gmail.com> wrote:
Apologies, but attached to this email are the 2 python scripts I have
neglected to attach to the previous email.
Tanim Islam
Tanim,
Could you try that again? No python scripts came with that email.
Ben Root
#!/usr/bin/env python -i
import pylab, numpy, inspect
from mpl_toolkits.mplot3d import Axes3D
from matplotlib import cm
from matplotlib.ticker import FuncFormatter
def scinot(x, pos=None):
if x == 0:
s = '0'
else:
xp = int(numpy.floor(numpy.log10(numpy.abs(x))))
mn = x/10.**xp
# Here we truncate to 2 significant digits -- may not be enough
# in all cases
s = '$'+str('%.1f'%mn) +'\\times 10^{'+str(xp)+'}$'
return s
pylab.close()
u = numpy.random.random_sample(300)
v = numpy.random.random_sample(300)
w = numpy.random.random_sample(300)
mag = numpy.sqrt(u**2 + v**2 + w**2)
## fundamentally nontrivial things to customize a colorbar to look nice
## in pylab/matplotlib
fig = pylab.figure(figsize=(15,13.5)) # make the figure bigger
axes3d = Axes3D(fig)
patches = axes3d.scatter(u, v, w, c=mag, cmap=cm.jet,
vmin=0.5, vmax=1.5, s=30.5)
cb = fig.colorbar(patches, shrink=0.75, aspect=20, pad=0.05,
orientation='vertical', fraction=0.10,
format=FuncFormatter(scinot))
#cb.ax.set_major_formatter(FuncFormatter(scinot))
pylab.show()
#!/usr/bin/env python -i
import pylab, numpy, os
from mpl_toolkits.mplot3d import Axes3D
from matplotlib import cm
from matplotlib.ticker import FuncFormatter
def create_colors(vals, minval, maxval):
gradients = cm.jet(numpy.linspace(0, 1.0, 101))
normvals = (numpy.array(vals) - minval) / (maxval - minval)
rgbacolors = numpy.zeros((len(vals), 4))
for idx in range(len(vals)):
actidx = max(0, min(100, int(normvals[idx] * 100)))
rgbacolors[idx,:] = gradients[actidx]
return rgbacolors
def scinot(x, pos=None):
if x == 0:
s = '0'
else:
xp = int(numpy.floor(numpy.log10(numpy.abs(x))))
mn = x/10.**xp
# Here we truncate to 2 significant digits -- may not be enough
# in all cases
s = '$'+str('%.1f'%mn) +'\\times 10^{'+str(xp)+'}$'
return s
pylab.close()
xd = []
yd = []
zd = []
vmag_d = []
for line in open(os.path.expanduser('~/temp/data_output.txt'), 'r'):
linesplit = line.strip().split()
xd.append(float(linesplit[0]))
yd.append(float(linesplit[1]))
zd.append(float(linesplit[2]))
vmag_d.append(float(linesplit[3]))
xd_min = min(xd)
xd_max = max(xd)
yd_min = min(yd)
yd_max = max(yd)
zd_min = min(zd)
zd_max = max(zd)
fig = pylab.figure(figsize=(15,13.5))
axes3d = Axes3D(fig)
scatter = axes3d.scatter(numpy.array(xd), numpy.array(yd),
numpy.array(zd),
c = numpy.array(vmag_d),
cmap = cm.jet,
s = 1.0)
axes3d.set_xlim3d([xd_min, xd_max])
axes3d.set_ylim3d([yd_min, yd_max])
axes3d.set_zlim3d([zd_min, zd_max])
axes3d.set_xlabel(r'$x$ (cm)')
axes3d.set_ylabel(r'$y$ (cm)')
axes3d.set_zlabel(r'$z$ (cm)')
axes3d.w_xaxis.set_major_formatter(FuncFormatter(scinot))
axes3d.w_yaxis.set_major_formatter(FuncFormatter(scinot))
axes3d.w_zaxis.set_major_formatter(FuncFormatter(scinot))
fig.colorbar(scatter, orientation='vertical', shrink=0.75, aspect=20, pad=0.05,
fraction=0.10, format=FuncFormatter(scinot))
pylab.show()
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