A wing chart ( or tornado chart ) is a special type of column chart ( or bar chart ), where two columns ( or bars ) are spread over both sides of the axis. The wing chart is useful to compare two categories of data and to provide decision makers with a quick overview.
The <Column2DWingChart> element tag is used to create a column-type wing chart in KoolChart, and the series element tag for the column-type wing chart is <Column2DWingSeries>.
If you want to create a column stacked wing chart with connecting lines, set the value of the lineToEachItems attribute in the <Column2DWingSeries> element tag to "true".
... <Column2DWingChart type="stacked" ... > ... <series> <Column2DWingSeries yField="house1" yFieldOpp="house2" lineToEachItems="true" ... > ... </Column2DWingSeries> <Column2DWingSeries yField="factory1" yFieldOpp="femfactory2" lineToEachItems="true" ... > ... </Column2DWingSeries> </series> ... </Column2DWingChart> ...
|type||The type attribute determines the representation type of multiple series bar chart. The valid values are "clustered", "overlaid", "stacked" and "100%". The default value is "clustered".|
|yField||The yField attribute determines the field name of the upper wing of the vertical axis ( verticalAxis ).|
|yFieldOpp||The yFieldOpp attribute determines the field name of the lower wing of the vertical axis ( verticalAxis ).|
|lineToEachItems||The lineToEachItems attribute determines whether or not to draw the connecting line between data points.|