Python中的 Matplotlib.patches.ArrowStyle 类

Matplotlib是Python中用于数组二维图的惊人可视化库。 Matplotlib 是一个基于 NumPy 数组构建的多平台数据可视化库，旨在与更广泛的 SciPy 堆栈配合使用。

matplotlib.patches.ArrowStyle

matplotlib.patches.ArrowStyle类是一个容器类，它定义了许多箭头样式类，用于沿着提供的路径创建箭头路径。这些主要与 FancyArrowpatch 一起使用。

Syntax: class matplotlib.patches.ArrowStyle

以下子类是为各种箭头样式定义的；

Class	Name	Attributes
Curve	–	None
CurveB	->	head_length=0.4, head_width=0.2
BracketB	-[	widthB=1.0, lengthB=0.2, angleB=None
CurveFilledB	-|>	head_length=0.4, head_width=0.2
CurveA	<-	head_length=0.4, head_width=0.2
CurveAB	<-|>	head_length=0.4, head_width=0.2
CurveFilledA	<|-	head_length=0.4, head_width=0.2
CurveFilledAB	<|-|>	head_length=0.4, head_width=0.2
BracketA	]-	widthA=1.0, lengthA=0.2, angleA=None
BracketAB	]-[	widthA=1.0, lengthA=0.2, angleA=None, widthB=1.0, lengthB=0.2, angleB=None
Fancy	fancy	head_length=0.4, head_width=0.4, tail_width=0.4
Simple	simple	head_length=0.5, head_width=0.5, tail_width=0.2
Wedge	wedge	tail_width=0.3, shrink_factor=0.5
BarAB	|-|	widthA=1.0, angleA=None, widthB=1.0, angleB=None

示例 1：

import matplotlib.pyplot as plt
from matplotlib.patches import ArrowStyle
  
plt.figure(1, figsize =(9, 9))
  
ArrowStyle("Wedge")
  
ax = plt.subplot(111)
  
ax.annotate("",
            xy =(0.2, 0.2), xycoords ='data',
            xytext =(0.8, 0.8), textcoords ='data',
            arrowprops = dict(arrowstyle ="Wedge",
                            connectionstyle ="arc3"), 
            )
  
plt.show()

输出：

示例 2：

import matplotlib.patches as mpatch
import matplotlib.pyplot as plt
  
  
figheight = 8
fig = plt.figure(figsize =(9, figheight), dpi = 80)
fontsize = 0.4 * fig.dpi
  
def make_boxstyles(ax):
    styles = mpatch.BoxStyle.get_styles()
  
    for i, (stylename, styleclass) in enumerate(sorted(styles.items())):
        ax.text(0.5, 
                (float(len(styles)) - 0.5 - i)/len(styles),
                stylename,
                ha ="center",
                size = fontsize,
                transform = ax.transAxes,
                bbox = dict(boxstyle = stylename, 
                            fc ="g", ec ="r"))
  
def make_arrowstyles(ax):
    styles = mpatch.ArrowStyle.get_styles()
  
    ax.set_xlim(0, 4)
    ax.set_ylim(0, figheight)
  
    for i, (stylename, styleclass) in enumerate(sorted(styles.items())):
          
        # /figheight
        y = (float(len(styles)) - 0.25 - i
        p = mpatch.Circle((3.2, y), 0.2, fc ="r")
        ax.add_patch(p)
  
        ax.annotate(stylename, (3.2, y),
                    (2., y),
                      
                    # xycoords ="figure fraction",
                    # textcoords ="figure fraction",
                    ha ="right", va ="center",
                    size = fontsize,
                    arrowprops = dict(arrowstyle = stylename,
                                    patchB = p,
                                    shrinkA = 5,
                                    shrinkB = 5,
                                    fc ="w", ec ="r",
                                    connectionstyle ="arc3, rad =-0.05",
                                    ),
                    bbox = dict(boxstyle ="square", fc ="g"))
  
    ax.xaxis.set_visible(False)
    ax.yaxis.set_visible(False)
  
  
ax1 = fig.add_subplot(121, frameon = False, xticks =[], yticks =[])
make_boxstyles(ax1)
  
ax2 = fig.add_subplot(122, frameon = False, xticks =[], yticks =[])
make_arrowstyles(ax2)
  
  
plt.show()

输出：

在评论中写代码？请使用 ide.geeksforgeeks.org，生成链接并在此处分享链接。