旋轉圖形但不是圖例

Question

我有一個圖形，我想旋轉90度。問題在於圖例也在旋轉。

有沒有辦法只旋轉圖形？ 即使能夠將圖例的旋轉屬性設置爲90度也沒問題。

對於xticks例如我使用plt.xticks(range(len(mu_mse.index)), x_labs, rotation='vertical')

Answer 1

您可以查看演示例如約floating axes旋轉的多種用途。在這種情況下，您只會旋轉軸，而不是正常調用圖例。

你需要做出調整的傳奇地位，情節的限制等等，但咋一看這個例子應該提供其背後的邏輯是：

from matplotlib.transforms import Affine2D 
import mpl_toolkits.axisartist.floating_axes as floating_axes 
import numpy as np 
import mpl_toolkits.axisartist.angle_helper as angle_helper 
from matplotlib.projections import PolarAxes 
from mpl_toolkits.axisartist.grid_finder import (FixedLocator, MaxNLocator, 
               DictFormatter) 
import matplotlib.pyplot as plt 


def setup_axes1(fig, rect): 
    """ 
    A simple one. 
    """ 
    tr = Affine2D().scale(2, 1).rotate_deg(30) 

    grid_helper = floating_axes.GridHelperCurveLinear(
     tr, extremes=(0, 100, 0, 100)) 

    ax1 = floating_axes.FloatingSubplot(fig, rect, grid_helper=grid_helper) 
    fig.add_subplot(ax1) 

    aux_ax = ax1.get_aux_axes(tr) 

    grid_helper.grid_finder.grid_locator1._nbins = 4 
    grid_helper.grid_finder.grid_locator2._nbins = 4 

    return ax1, aux_ax 

fig = plt.figure() 

x = range(100) 
y = x + np.random.randint(-10,10,100) 
ax1, aux_ax1 = setup_axes1(fig, 111) 
aux_ax1.scatter(x,y,c='green',label='green') 
aux_ax1.scatter(y,x,c='purple',label='purple') 
ax1.legend() 

plt.show() 

這種特殊的食譜（改編自這個答案的頂部的鏈接）的結果是：