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Radar Heat Map

Generally, Heat maps represent data in rectangular matrices where individual values are differentiated by color. In this case, we apply this concept to a radial shape which could be useful for visualizing repeating activities, for example.

Key implementation details

Heat map is basically a bar chart with two category axes instead of one category and one value axis seen in the most most common XY charts. We then create our RadarColumnSeries and set both categoryXField (hour) and categoryYField (weekday). The one thing left is to define a “heat rule” on the series based on the value field.

To complete the picture we add a heat legend at the bottom.

Related tutorials

Demo source