Label styles

Sample data

Let's import PlotAPI and load our sample data.

from plotapi import Chord

matrix = [
    [0, 5, 6, 4, 7, 4],
    [5, 0, 5, 4, 6, 5],
    [6, 5, 0, 4, 5, 5],
    [4, 4, 4, 0, 5, 5],
    [7, 6, 5, 5, 0, 4],
    [4, 5, 5, 5, 4, 0],
]

names = ["Action", "Adventure", "Comedy", "Drama", "Fantasy", "Thriller"]

Demonstration

PlotAPI Chord supports multiple label styles:

• callout (default)
• radial
• star

Callout labels

With the default setting, label_style="callout", we have our labels arranged around our diagram with connecting lines that indicate the corresponding arc.

Chord(matrix, names, label_style="callout").show()

The line colors match those of the segments by default.

This, and the line thickness can be changed with the callout_line_color and callout_stroke_width parameters.

Chord(matrix, names, 
      callout_line_color="black",
      callout_stroke_width=2).show()

Radial labels

With the radial setting, label_style="radial", we have our labels arranged around our diagram and curved around the corresponding arc.

Chord(matrix, names, label_style="radial").show()

These are not suitable for all datasets - especially those which result in many small arcs.

Star labels

With the radial setting, label_style="star", we have our labels arranged around our diagram and aligned outward from the center of the chord diagram.Chord(matrix, names, label_style="radial").show()

Chord(matrix, names, label_style="star").show()