var value; // Type: any
value = jQuery.wijmo.wijpiechart.options.height;
Javascript (Specification)
var height : any;
Remarks
Note that this value overrides any value you may set in the <div> element that
you use in the body of the HTML page. If you specify a height in the <div> element that
is different from this value, the chart and its border go out of synch.