Python Bokeh – 在图表上绘制六边形图块

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 可用于在图表上绘制六边形图块。可以使用plotting模块的hex_tile()方法在图形上绘制六边形图块。

plotting.figure.hex_tile()

Syntax : hex_tile(parameters)

Parameters :

• q : column axial coordinates of the center of the hexagon tiles
• r : row axial coordinates of the center of the hexagon tiles
• aspect_scale : aspect scale value, default is 1
• fill_alpha : fill alpha value of the hexagon tile markers
• fill_color : fill color value of the hexagon tile markers
• line_alpha : percentage value of line alpha, default is 1
• line_cap : value of line cap for the line, default is butt
• line_color : color of the line, default is black
• line_dash : value of line dash such as : solid, dashed, dotted, dotdash, dashdot [default is solid ]
• line_dash_offset : value of line dash offset, default is 0
• line_join : value of line join, default in bevel
• line_width : value of the width of the line, default is 1
• name : user-supplied name for the model
• orientation : orientation value, default is pointytop
• scale : scale factor of individual tiles, default is 1
• size : radius of the hexagonal tiles, default is 1
• tags : user-supplied values for the model

Other Parameters :

• alpha : sets all alpha keyword arguments at once
• color : sets all color keyword arguments at once
• legend_field : name of a column in the data source that should be used
• legend_group : name of a column in the data source that should be used
• legend_label : labels the legend entry
• muted : determines whether the glyph should be rendered as muted or not, default is False
• name : optional user-supplied name to attach to the renderer
• source : user-supplied data source
• view : view for filtering the data source
• visible : determines whether the glyph should be rendered or not, default is True
• x_range_name : name of an extra range to use for mapping x-coordinates
• y_range_name : name of an extra range to use for mapping y-coordinates
• level : specifies the render level order for this glyph

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。我们提供了 size 和 fill_color 属性以使字形可见。

# 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 Hexagon Tiles Graph",
               match_aspect = True) 
     
# the points to be plotted 
r = [0, 0, 1] 
q = [1, 2, 2] 
    
# plotting the graph 
graph.hex_tile(r, q) 
     
# displaying the model 
show(graph) 

输出 ：

示例 2：在此示例中，我们将使用各种参数绘制六边形图块

# 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 Hexagon Tiles Graph",
               match_aspect = True) 
  
# name of the x-axis 
graph.xaxis.axis_label = "x-axis"
       
# name of the y-axis 
graph.yaxis.axis_label = "y-axis"
     
# the points to be plotted 
r = [0, -1,  0,  1, -1, 0, 1]
q = [0,  0, -1, -1,  1, 1, 0] 
  
# fill color values
fill_color = ["yellow", "blue", "pink", "green", "orange", "red", "purple"]
  
# line color values
line_color = ["yellow", "blue", "pink", "green", "orange", "red", "purple"]
  
# plotting the graph 
graph.hex_tile(r, q,
               fill_color = fill_color,
               line_color = line_color) 
     
# displaying the model 
show(graph) 

输出 ：

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