我曾编写过一个Python函数，可以修改任何当前交互式图形的标签和刻度标签文本大小。然后删除顶部和右侧轴以获得更喜欢的图表格式进行输出。接着它输出这些图表。但我现在遇到了一个问题，就是如何设置坐标轴的大小，以便保持xlabel在图形的画布上，并且在输出时显示出来。我知道手动创建轴时可以用下面的方法实现：
ax = plt.axes([0.125,0.2,0.95-0.125,0.95-0.2])
有没有办法在图像绘制之后设置这些参数？如果可以，我该如何访问或修改它呢？（还可以在matplotlibrc文件中设置吗？）
另一个问题与图例有关：
我通常使用以下一组图例参数，但是如何在事后设置其他规格？我只找到了下面的规格：
legArgs = dict(bbox_to_anchor=[.44,1.18], borderpad=0.1, labelspacing=0,
handlelength=1.8, handletextpad=0.05, frameon=False, ncol=5,
columnspacing=0.02)
#ncol,numpoints,columnspacing,title,bbox_transform,prop
leg = ax.legend(tuple(legendLabels),tuple(modFreq),'upper center',**legArgs)
leg.get_title().set_fontsize(tick_size)
leg.set_frame_on(False)
leg.set_bbox_to_anchor([1.1,1.05])
for i in leg.get_texts():
i.set_fontsize(8)
完整的绘图函数包括辅助函数：
def plot_for_publication_output(fig, ax, filename, dir_addition='',
fulldir=None, column_width=1, dpi=600,
out_formats=['.eps','.pdf','.png']):
"""
column_width assumes a standard 2 column width format (default 1 column,
2 meaning spreads across both columns)
"""
if fulldir == None:
store_dir = os.path.expanduser('~/'+'Dropbox/Research/Results/' + dir_addition)
else:
store_dir = fulldir
spineLineWidth = 0.5
tick_size = 9
fontlabel_size = 10.5
mydpi = dpi
outExt = out_formats
dashs = ['-.', '-', '--', ':']
dashes = [(1.5, 0), (3.5, 1.5), (1.5, 1.5, 3,1.5), (1, 1)]
plot_color = "bgrkcykw"
fig_width_pt = 246.0 * column_width # Get this from LaTeX using
# \showthe\columnwidth
inches_per_pt = 1.0 / 72.27 # Convert pt to inches
golden_mean = (np.sqrt(5) - 1.0) / 2.0 # Aesthetic ratio
fig_width = fig_width_pt * inches_per_pt # width in inches
fig_height = fig_width * golden_mean # height in inches
fig.set_size_inches(fig_width, fig_height)
plotSetAxisTickLabels(ax, tick_size)
plotSetAxisLabels(ax, fontlabel_size)
#params = {'axes.labelsize': fontlabel_size, 'text.fontsize': fontlabel_size,
# 'legend.fontsize': fontlabel_size, 'xtick.labelsize': tick_size,
# 'ytick.labelsize': tick_size, 'text.usetex': True,
# 'figure.figsize': fig_size}
#plt.rcParams.update(params)
#ax = plt.axes([0.125, 0.2, 0.95 - 0.125, 0.95 - 0.2])
set_spineLineWidth(ax,spineLineWidth)
clear_spines(ax)
ax.yaxis.set_ticks_position('left')
ax.xaxis.set_ticks_position('bottom')
for i in outExt:
plt.savefig(os.path.join(store_dir, filename) + i, dpi = mydpi)
def clear_spines(ax):
ax.spines['top'].set_color('none')
ax.spines['right'].set_color('none')
def set_spineLineWidth(ax, lineWidth):
for i in ax.spines.keys():
ax.spines[i].set_linewidth(lineWidth)
def showOnlySomeTicks(x, pos):
s = str(int(x))
if x == 5000:
return '5e3'#'%.0e' % x
return ''
def plotSetAxisTickLabels(ax, size=16):
for i in ax.xaxis.get_ticklabels():
i.set_fontsize(size)
for i in ax.yaxis.get_ticklabels():
i.set_fontsize(size)
def plotSetAxisLabels(ax, size=16):
ax.xaxis.get_label().set_fontsize(size)
ax.yaxis.get_label().set_fontsize(size)