chartLabelStyle

A value that indicates the styles applied to the chart labels. For a full list of the available Style options, please see the Style Options topic.

Type: Object

Default: {}

rotation

An option that adds rotation to the element.

Type: Number

Code Example:

var piechart = document.getElementById("wijpiechart").winControl;

                WinJS.UI.setOptions(piechart, {

chartLabelStyle: {

                            rotation: 90,

                            transform: "T10 -10"

}

)};