Rosetype Pie Chart

Rose type pie Chart, which was also called the nightingale chart, usually indicates categories by sector of the same radius but different radius.

ECharts can implement Rose Chart by defining series.roseType of pie chart to 'area'. All other configs are the same as a basic pie chart.

You can find a more in depth explanation about the rosetype pie on this page: https://echarts.apache.org/examples/en/editor.html?c=pie-roseType-simple

Image 1: The rosetype pie chart

Properties of Rosetype Pie Chart

Property Name	Data type	Type	Description
Data Source	List	Data Model	Datalist where the data is stored.
Label	Text	Expression	Labels for each of the values in the outer pie.
Value	Number	Expression	Values for the outer pie.
Chart color	Text	Expression	Colors for the values in the pie.
Pie name (tooltip)	Text	Expression	Defines the name of the pie chart. This name is used for the labels and the tooltips.
Show value (tooltip)	Boolean	Expression	Determines if the value is shown on the tooltip label.
Value prefix (tooltip)	Text	Expression	Set the value of the prefix.
Show percent (tooltip)	Boolean	Expression	Determines if the percent is shown on the tooltip label.
Percent Prefix	Text	Expression	Set the percent prefix.
Set the percent postfix.	Text	Expression	Set the percent postfix.
Height	Text	Expression	Sets the height of the element, accepts all the css height values. default value: "500%".
Width	Text	Expression	Sets the width of the element, accepts all the css width values.
Pie starts radius	Number	Expression	Defines the start radius of the pie in percentages from 0-100.
Pie end radius	Number	Expression	Defines the end radius of the pie in percentages from 0-100.
Font size	Number	Expression	Font size for the labels of the pie Default value:12
Rosetype style	Text	Expression	Which type of rosetype value presentation the chart will use Radius: Uses central angle to show the percentage of data, radius to show data size. Area: All the sectors will share the same central angle; the data size is shown only through radiuses. (Radius, Area).