def test_log():
import numpy
from numpy import log10
x=numpy.logspace(log10(0.1), log10(30.0), 10)
y=1.0/x
# we here use parters and texters which are explained in the examples below
#log2parter = axis.parter.log([axis.parter.preexp([axis.tick.rational(1)], 4),
# axis.parter.preexp([axis.tick.rational(1)], 2)])
#log2texter = axis.texter.exponential(nomantissaexp=r"{2^{%s}}",
# mantissamax=axis.tick.rational(2))
fac=2.0
g = graph.graphxy(
width=8,
height=8,
#ratio=1.0,
x=axis.log(min=x.min()/fac,max=fac*x.max(),title=r'$R~ [h^{-1}$ Mpc]'),
y=axis.log(min=y.min()/fac,max=fac*y.max(),title=r'$\Delta\Sigma ~[h~$M$_\odot~$pc$^{-2}]$'),
)
symbol=graph.style.symbol(
symbol=graph.style._circlesymbol,
size=0.1,
symbolattrs=[deco.filled([color.rgb.black])],
)
values=graph.data.values(x=list(x),y=list(y))
g.plot(values,[symbol])
#g.writeEPSfile("log")
#g.writePDFfile("log")
g.writetofile("log-test.pdf")
g.writetofile("log-test.eps")
def plot_c2rng():
#nocorr = [1.78, 1.16, 0.46]
#err_nocorr = [0.27, 0.18, 0.12]
#corr = [0.27, 0.09, 0.20]
#err_corr = [0.27, 0.18, 0.12]
nocorr=array([1.702e-04,
7.042e-05,
4.098e-06,
8.133e-05])/1.0e-4
err_nocorr=array([1.899e-05,
1.662e-05,
1.849e-05,
2.582e-05])/1.0e-4
corr=array([2.279e-05,
2.110e-05,
-1.680e-05,
6.090e-05])/1.0e-4
err_corr=array([1.891e-05,
1.654e-05,
1.849e-05,
2.588e-05])/1.0e-4
ymin,ymax=-3,3
xlabel=r'$\langle S/N \rangle$'
xaxis=axis.log(min=log_xrng[0],max=log_xrng[1],title=xlabel)
c,g=plot_c(s2n_means,corr,err_corr,nocorr,err_nocorr,ymin,ymax,xaxis)
return c,g
def _get_axes(kw):
xlog=kw.get('xlog',False)
ylog=kw.get('ylog',False)
xkw=dict(
title=kw.get('xlabel',None),
min=kw.get('xmin',None),
max=kw.get('xmax',None),
# density of ticks
density=kw.get('xdensity',1),
reverse=kw.get('xreverse',0),
)
ykw=dict(
title=kw.get('ylabel',None),
min=kw.get('ymin',None),
max=kw.get('ymax',None),
# density of ticks
density=kw.get('ydensity',1),
reverse=kw.get('yreverse',0),
)
if xlog:
xaxis = axis.log(**xkw)
else:
xaxis = axis.lin(**xkw)
if ylog:
yaxis = axis.log(**ykw)
else:
yaxis = axis.lin(**ykw)
return xaxis, xlog, yaxis, ylog
import math
from pyx import *
from pyx.graph import axis
# we here use parters and texters which are explained in the examples below
log2parter = axis.parter.log([
axis.parter.preexp([axis.tick.rational(1)], 4),
axis.parter.preexp([axis.tick.rational(1)], 2)
])
log2texter = axis.texter.exponential(nomantissaexp=r"{2^{%s}}",
mantissamax=axis.tick.rational(2))
g = graph.graphxy(width=10,
x=axis.log(min=1, max=1024),
y=axis.log(min=1, max=1024, parter=log2parter),
y2=axis.log(min=1,
max=1024,
parter=log2parter,
texter=log2texter))
g.writeEPSfile("log")
g.writePDFfile("log")
g.writeSVGfile("log")
def __init__(self, args):
narg = len(args)
if nargs < 2:
self.usage()
self.out = 'plot'
self.xlabel = None
self.ylabel = None
self.xmin = None
self.xmax = None
self.ymin = None
self.ymax = None
self.key = None
self.width = 8
self.height = 5
self.kdist = 0.1
self.xlog = 0
self.ylog = 0
keyz = ''
future_plots = []
current_args = []
keep = 0
has_name = 0
# we iterate through arguments and assign them to global or local options
for arg in args:
# Global options
if arg.startswith('out='):
self.out = arg[4:]
elif arg.startswith('xlabel='):
self.xlabel = arg[7:]
elif arg.startswith('ylabel='):
self.ylabel = arg[7:]
elif arg.startswith('width='):
self.width = float(arg[6:])
elif arg.startswith('height='):
self.height = float(arg[7:])
elif arg.startswith('xmin='):
self.xmin = float(arg[5:])
elif arg.startswith('ymin='):
self.ymin = float(arg[5:])
elif arg.startswith('xmax='):
self.xmax = float(arg[5:])
elif arg.startswith('ymax='):
self.ymax = float(arg[5:])
elif arg.startswith('key='):
keyz = arg[4:]
elif arg.startswith('kdist='):
self.kdist = arg[6:]
elif arg.startswith('legend=') or arg.startswith('title'):
self.key = graph.key.key(pos="tl", dist=self.kdist)
elif arg.startswith('--help'):
self.usage()
elif arg.startswith('-xlog'):
self.xlog = 1
elif arg.startswith('-ylog'):
self.ylog = 1
# Local / semi-local options
elif arg.startswith('andif'):
if has_name == 0:
raise ValueError(
'Error : cannot use andif= before the first declared file'
)
else:
#future_plots.append(Toplot(fname,current_args))
current_args.append(__SPLIT_MARK__)
current_args.append(arg)
elif arg.startswith('-keep'):
keep = 1
elif arg.startswith('-discard'):
keep = 0
elif arg.startswith('-') or arg.find('=') >= 0:
current_args.append(arg)
# If it's not an option, it's definitey a filename
elif arg == 'and':
current_args.append(__SPLIT_MARK__)
else:
# If there is already a name for a future plot
if has_name:
future_plots.append(Toplot(fname, current_args))
if keep == 0:
current_args = []
else:
has_name = 1
fname = arg
# We still need add the last file to futureèplots
if has_name:
future_plots.append(Toplot(fname, current_args))
has_name = 0
# we check if the plots must be split by and / andif
for toplot in future_plots:
[is_split, new_plot] = toplot.check_split()
if is_split:
future_plots.append(new_plot)
# we deal with global plot properties
if self.xlabel:
try:
self.xlabel = r"%s" % (self.xlabel)
except:
self.xlabel = None
if self.ylabel:
try:
self.ylabel = r"%s" % (self.ylabel)
except:
self.ylabel = None
try:
self.key = graph.key.key(pos="%s" % (keyz), dist=float(self.kdist))
except:
if keyz == 'None':
self.key = None
if self.xlog:
xaxis = axis.log(title=self.xlabel, min=self.xmin, max=self.xmax)
else:
xaxis = axis.linear(title=self.xlabel,
min=self.xmin,
max=self.xmax)
if self.ylog:
yaxis = axis.log(title=self.ylabel, min=self.ymin, max=self.ymax)
else:
yaxis = axis.linear(title=self.ylabel,
min=self.ymin,
max=self.ymax)
self.graph = graph.graphxy(width=self.width,
height=self.height,
key=self.key,
x=xaxis,
y=yaxis)
# We create the graphs
self.graphs = [Graph(toplot) for toplot in future_plots]
def make_plot(self, *args, **kwargs):
self.read_args(*args, **kwargs)
# we check if the plots must be split by and / andif
for i, toplot in enumerate(self.future_plots):
[is_split, new_plot] = toplot.check_split()
if is_split:
#print('splitting ******************************')
self.future_plots.append(new_plot)
## Now we create the graphs
# We create the graphs
#self.graphs=[Graph(toplot) for toplot in self.future_plots]
for i, toplot in enumerate(self.future_plots):
(args, kwargs) = toplot.unpack_arguments()
kwargs['numr'] = i
self.graphs.append(Graph(*args, **kwargs))
#print(i)
#self.graphs=[Graph(toplot) for toplot in self.future_plots]
if self.autolabel:
for graf in self.graphs:
if graf.xlabel:
if not self.xlabel:
self.xlabel = graf.xlabel
if graf.ylabel:
if not self.ylabel:
self.ylabel = graf.ylabel
# we deal with global plot properties
if self.xlabel:
try:
self.xlabel = r"%s" % (self.xlabel)
except:
self.xlabel = None
if self.ylabel:
try:
self.ylabel = r"%s" % (self.ylabel)
except:
self.ylabel = None
if self.equalaxis:
self.height = self.width
self.make_equal_axis_range()
if self.xlog:
xaxis = axis.log(title=self.xlabel, min=self.xmin, max=self.xmax)
for graf in self.graphs:
if sum(array(graf.X) <= 0):
raise ValueError(
'Could not plot log with non-positive X values')
else:
xaxis = axis.linear(title=self.xlabel,
min=self.xmin,
max=self.xmax)
if self.ylog:
yaxis = axis.log(title=self.ylabel, min=self.ymin, max=self.ymax)
for graf in self.graphs:
if sum(array(graf.Y) <= 0):
raise ValueError(
'Could not plot log with non-positive X values')
else:
yaxis = axis.linear(title=self.ylabel,
min=self.ymin,
max=self.ymax)
self.graph = graph.graphxy(width=self.width,
height=self.height,
key=self.key,
x=xaxis,
y=yaxis)
## Here we do the plotting itlsef
for graf in self.graphs:
self.plot(graf)
## We finish() the graph to be able to work with pathes
self.graph.finish()
## Now if there are graphs with a stroke_style, we paint them !
# This is meant for histograms
for graf in self.graphs:
if len(graf.stroke_style):
for plot in graf.ploted:
self.canvas.stroke(plot.path, graf.stroke_style)
self.canvas.insert(self.graph)
import math
from pyx import *
from pyx.graph import axis
# we here use parters and texters which are explained in the examples below
log2parter = axis.parter.log(
[axis.parter.preexp([axis.tick.rational(1)], 4), axis.parter.preexp([axis.tick.rational(1)], 2)]
)
log2texter = axis.texter.exponential(nomantissaexp=r"{2^{%s}}", mantissamax=axis.tick.rational(2))
g = graph.graphxy(
width=10,
x=axis.log(min=1, max=1024),
y=axis.log(min=1, max=1024, parter=log2parter),
y2=axis.log(min=1, max=1024, parter=log2parter, texter=log2texter),
)
g.writeEPSfile("log")
g.writePDFfile("log")
g.writeSVGfile("log")