bokeh.plotting.figure.annulus() Function
The annulus() function in plotting module of bokeh library is used to configure and add Annulus glyphs to this Figure.
Syntax: annulus(x, y, inner_radius, outer_radius, *, fill_alpha=1.0, fill_color=’gray’, inner_radius_units=’data’, line_alpha=1.0, line_cap=’butt’, line_color=’black’, line_dash=[], line_dash_offset=0, line_join=’bevel’, line_width=1, name=None, outer_radius_units=’data’, tags=[], **kwargs)
Parameters: This method accept the following parameters that are described below:
- x: This parameter is the x-coordinates for the center of the annuli.
- y: This parameter is the y-coordinates for the center of the annuli.
- inner_radius: This parameter is the inner radii of the annuli.
- outer_radius: This parameter is the outer radii of the annuli.
- start_angle: This parameter is the angles to start the annular wedges.
- fill_alpha: This parameter is the fill alpha values for the annular wedges.
- fill_color: This parameter is the fill color values for the annular wedges.
- line_alpha: This parameter is the line alpha values for the steps with default value of 1.0 .
- line_cap: This parameter is the line cap values for the steps with default value of butt.
- line_color: This parameter is the line color values for the steps with default value of black.
- line_dash: This parameter is the line dash values for the steps with default value of [].
- line_dash_offset: This parameter is the line dash offset values for the steps with default value of 0.
- line_join: This parameter is the line join values for the steps with default value of bevel.
- line_width: This parameter is the line width values for the steps with default value of 1.
- mode: This parameter can be one of three values : [“before”, “after”, “center”].
- name: This parameter is the user-supplied name for this model.
- tags: This parameter is the user-supplied values for this model.
Other Parameters: These parameters are **kwargs that are described below:
- alpha: This parameter is used to set all alpha keyword arguments at once.
- color: This parameter is used to to set all color keyword arguments at once.
- legend_field: This parameter is the name of a column in the data source that should be used or the grouping.
- legend_group: This parameter is the name of a column in the data source that should be used or the grouping.
- legend_label: This parameter is the legend entry is labeled with exactly the text supplied here.
- muted: This parameter contains the bool value.
- name: This parameter is the optional user-supplied name to attach to the renderer.
- source: This parameter is the user-supplied data source.
- view: This parameter is the view for filtering the data source.
- visible: This parameter contains the bool value.
- x_range_name: This parameter is the name of an extra range to use for mapping x-coordinates.
- y_range_name: This parameter is the name of an extra range to use for mapping y-coordinates.
- level: This parameter specify the render level order for this glyph.
Return: This method return the GlyphRenderer value.
Below examples illustrate the bokeh.plotting.figure.Annulus() function in bokeh.plotting:
Example 1:
# Implementation of bokeh function import numpy as np from bokeh.plotting import figure, output_file, show plot = figure(plot_width = 300 , plot_height = 300 ) plot.annulus(x = [ 1 , 2 , 3 ], y = [ 3 , 2 , 1 ], color = "green" , inner_radius = 0.2 , outer_radius = 0.5 , alpha = 0.6 ) show(plot) |
Output:
Example 2:
# Implementation of bokeh function import numpy as np from bokeh.plotting import figure, output_file, show N = 9 x = np.linspace( - 2 , 2 , N) y = x * * 2 r = x / 12.0 + 0.4 plot = figure(width = 300 , height = 300 ) plot.annulus(x = x, y = y, inner_radius = . 2 , outer_radius = r, fill_color = "green" , alpha = 0.5 ) show(plot) |
Output:
bokeh.plotting.figure.annulus() function in Python
Bokeh is a data visualization library in Python that provides high-performance interactive charts and plots and the output can be obtained in various mediums like notebook, html and server. The Figure Class create a new Figure for plotting. It is a subclass of Plot that simplifies plot creation with default axes, grids, tools, etc.