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figtools.py
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figtools.py
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from __future__ import division
import sys
import numpy as np
import matplotlib as mpl
import matplotlib.pyplot as plt
#=========================================================================================
# Default settings
# Tick direction out
mpl.rcParams['xtick.direction'] = 'out'
mpl.rcParams['ytick.direction'] = 'out'
# Axis labels
mpl.rcParams['axes.labelsize'] = 7
# legend font size
mpl.rcParams['legend.fontsize'] = 7
# font size
mpl.rcParams['font.size'] = 7
# font family
mpl.rcParams['font.family'] = 'sans-serif'
mpl.rcParams['font.sans-serif'] = ['Helvetica']
# Line width
mpl.rcParams['lines.linewidth'] = 1
# use sans-serif for math
mpl.rcParams['mathtext.fontset'] = 'stixsans'
#=========================================================================================
# MySubplot
class MySubplot(object):
labelpadx = 1.5
labelpady = 2
def __init__(self, fig, rect):
self.ax = fig.add_axes(rect)
self.xaxis = self.ax.xaxis
self.yaxis = self.ax.yaxis
#-------------------------------------------------------------------------------------
# Plot frame
def set_frame_thickness(self, thickness, color=None):
for v in self.ax.spines.values():
v.set_linewidth(thickness)
self.xaxis.set_tick_params(width=thickness)
self.yaxis.set_tick_params(width=thickness)
if color is not None:
for s in self.ax.spines.values():
s.set_color(color)
def set_tick_params(self, ticksize, ticklabelsize, pad=None):
self.xaxis.set_tick_params(size=ticksize, labelsize=ticklabelsize)
self.yaxis.set_tick_params(size=ticksize, labelsize=ticklabelsize)
if pad is not None:
self.xaxis.set_tick_params(pad=pad)
self.yaxis.set_tick_params(pad=pad)
def bottomleft_axes(self, thickness, ticksize, ticklabelsize, pad=None):
for s in ['top', 'right']:
self.ax.spines[s].set_visible(False)
self.xaxis.tick_bottom()
self.yaxis.tick_left()
self.set_frame_thickness(thickness)
self.set_tick_params(ticksize, ticklabelsize, pad)
#-------------------------------------------------------------------------------------
# Improved plotting interface
def plot(self, *args, **kargs):
if 'clip_on' not in kargs:
kargs['clip_on'] = False
return self.ax.plot(*args, **kargs)
def xlabel(self, *args, **kargs):
if 'labelpad' not in kargs:
kargs['labelpad'] = MySubplot.labelpadx
return self.ax.set_xlabel(*args, **kargs)
def ylabel(self, *args, **kargs):
if 'labelpad' not in kargs:
kargs['labelpad'] = MySubplot.labelpadx
return self.ax.set_ylabel(*args, **kargs)
def xlim(self, *args):
return self.ax.set_xlim(*args)
def ylim(self, *args):
return self.ax.set_ylim(*args)
def set_equal(self):
return self.ax.set_aspect('equal')
def bar(self,*args, **kargs):
return self.ax.bar(*args,**kargs)
#-------------------------------------------------------------------------------------
# Axis limits
def lim(self, axis, data, margin=0.05, relative=True, lower=None, upper=None):
xmin, xmax = np.min(data), np.max(data)
if lower is not None:
xmin = lower
if upper is not None:
xmax = upper
if relative:
dx = margin*(xmax - xmin)
else:
dx = margin
xlims = xmin-dx, xmax+dx
if lower is not None:
xlims = lower, xlims[1]
if upper is not None:
xlims = xlims[0], upper
if axis == 'x':
self.xlim(*xlims)
else:
self.ylim(*xlims)
return xlims
#-------------------------------------------------------------------------------------
# Annotation
def legend(self, *args, **kargs):
if 'bbox_transform' not in kargs:
kargs['bbox_transform'] = self.ax.transAxes
if 'frameon' not in kargs:
kargs['frameon'] = False
if 'numpoints' not in kargs:
kargs['numpoints'] = 1
return self.ax.legend(*args, **kargs)
#=========================================================================================
# MyFigure
class MyFigure(object):
defaultwidth = 6.5
defaultheight = 5.5
defaultrowheight = 3.5
default_rect = [0.12, 0.13, 0.8, 0.8]
default_bottomleft_params = {'thickness': 0.75,
'ticksize': 2,
'ticklabelsize': 7}
def __init__(self, figsize=None, specs=None):
self.plots = []
if figsize is None:
w = MyFigure.defaultwidth
h = MyFigure.defaultheight
else:
w = figsize[0]
h = figsize[1]
self.fig = plt.figure(figsize=(w, h))
def addplot(self, rect=None, bottomleftaxes=True):
if rect is None:
rect = MyFigure.default_rect
plot = MySubplot(self.fig, rect)
self.plots.append(plot)
if bottomleftaxes:
plot.bottomleft_axes(**self.bottomleft_params())
return plot
def bottomleft_params(self):
return MyFigure.default_bottomleft_params
def save(self, filename, path='', ext='pdf'):
f = path + filename + '.' + ext
plt.savefig(f, transparent=True)
print("* MyFigure saved as {}.".format(f))
def close(self):
plt.close()