Python Bokeh – 在图上绘制三角形

Bokeh 是一个Python交互式数据可视化。它使用 HTML 和 JavaScript 渲染其绘图。它针对现代 Web 浏览器进行演示，提供具有高性能交互性的新颖图形的优雅、简洁构造。

Bokeh 可用于在图形上绘制三角形。可以使用plotting模块的triangle()方法在图形上绘制三角形。

plotting.figure.triangle()

Syntax : triangle(parameters)

Parameters :

• x : x-coordinates of the center of the triangle markers
• y : y-coordinates of the center of the triangle markers

Returns : an object of class GlyphRenderer

示例 1：在此示例中，我们将使用默认值来绘制图形。

# importing the modules
from bokeh.plotting import figure, output_file, show
         
# file to save the model
output_file("gfg.html")
         
# instantiating the figure object
graph = figure(title = "Bokeh Triangle Graph")
       
# the points to be plotted
x = 0
y = 0
      
# plotting the graph
graph.triangle(x, y, size = 30)
       
# displaying the model
show(graph) 

输出 ：

示例 2：在此示例中，我们将绘制具有各种其他参数的多个三角形。

# importing the modules 
from bokeh.plotting import figure, output_file, show 
   
# file to save the model 
output_file("gfg.html") 
        
# instantiating the figure object 
graph = figure(title = "Bokeh Triangle Graph") 
   
# name of the x-axis 
graph.xaxis.axis_label = "x-axis"
        
# name of the y-axis 
graph.yaxis.axis_label = "y-axis"
   
# points to be plotted
x = [3, 3, 5]
y = [3, 1, 3]
size = [130, 100, 60]
   
# color value of the triangles
color = ["yellow", "red", "purple"]
   
# fill alpha value of the triangles
fill_alpha = [0.9, 0.7, 0.5]
   
# plotting the graph 
graph.triangle(x, y,
               size = size,
               color = color,
               fill_alpha = fill_alpha) 
        
# displaying the model 
show(graph)

输出 ：

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