A radar chart is a graphical method of displaying multivariate data in the form of a two-dimensional chart of three or more quantitative variables represented on axes starting from the same point. The <RadarChart> element tag is used to create a radar chart in KoolChart, and the series element tag for the radar chart is <RadarSeries>.
There are two types of axes in the radar chart, Angular axis and Radial axis.
This sample radar chart is to show how to create a circle shape with no filling color to the series data.
... <RadarChart type="circle" ... > ... <series> <RadarSeries field="year2010" displayName="Yr 2010" fillLineArea="false"> ... </RadarSeries> ... </series> ... </RadarChart> ...
|type||The type attribute determines the shape of the chart. The valid values are "polygon", "circle", and the default value is "polygon".|
|categoryField||The categoryField attribute determines which field in the Data Object will be used as the value of the angular axis ( category ).|
|field||The field attribute determines which field in the Data Object will be used as the value of the radal axis.|
|fillLineArea||The fillLineArea attribute determines whether or not to fill color in the area covered by a data series. The default value is "true".|