Python Bokeh - Plotting Triangles on a Graph Last Updated : 10 Jul, 2020 Comments Improve Suggest changes Like Article Like Report Bokeh is a Python interactive data visualization. It renders its plots using HTML and JavaScript. It targets modern web browsers for presentation providing elegant, concise construction of novel graphics with high-performance interactivity. Bokeh can be used to plot triangles on a graph. Plotting triangles on a graph can be done using the triangle() method of the plotting module. 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 Example 1 : In this example we will be using the default values for plotting the graph. Python3 # 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) Output : Example 2 : In this example we will be plotting multiple triangles with various other parameters. Python3 # 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) Output : Comment More infoAdvertise with us Next Article What is Data Visualization and Why is It Important? 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