Radial bar is simply a Bar Chart plotted on a polar coordinate system, rather than on a Cartesian one.
While they look cool, the problem with Radial Bar Charts is that the bar lengths can be misinterpreted. Each bar on the outside gets relatively longer to the last, even if they represent the same value.
You can find a more in depth explanation about the radial bar on this page:https://apexcharts.com/javascript-chart-demos/radialbar-charts/
Properties of Radial Bar Chart
Property Name
Data type
Type
Description
Data source
List
Data Model
Datalist where the data is stored.
Label
Text
Expression
To set the labels of the chart.
Value
Number
Expression
To set the value of the chart.
Chart color
Text
Expression
Colors to be used for each series.
Height
Text
Expression
Can be set to auto, percentage of container or pixels.
Width
Text
Expression
Can be set to percentage of container or pixels.
Angle style
Text
Dropdown
Defines the angle style for the radialbar (Full, Half, Half inverse, 3 Quarters).
Show legend
Boolean
Expression
If true, it will show a legend explaining the data on the chart.
Legend position
Text
Dropdown
Determines the position of the legend. (Left, right, top, bottom).
Legend font size
Number
Expression
number of the fontsize in px.
default 16px
Legend offset y
Number
Expression
Use for more specific positioning of the legend after using legend position.
Sets the top offset for legend container
in pixels. can use negative or positive and depending on the number it may cause the legend to have clipping issues with the chart. (Default is 0)
Legend offset x
Number
Expression
Use for more specific positioning of the legend after using legend position.
Sets the left offset for legend container
in pixels. can use negative or positive and depending on the number it may cause the legend to have clipping issues with the chart. (default is 0)
Hollow size
Number
Expression
Percentage of the chart that is the hollow section. (Default 30%)
Data label font size
Number
Expression
Defines the fontsize of the labels that appear when hovering a given track.
may cause clipping if too big.
number of the fontsize in px.
default 16px