problem in chart sizing and resizing

hi all,

am using vaadin visualization addon for drawing chart. at present i drawn a Linechart. i placed a line chart inside a Horizontallayout, that horizontallayout is placed inside a tab.
In turn that tab in placed inside second component of vertical spliter.

My problem is while increasing the browser size or decreasing the browser size the line chart doesn’t change it size. is any tool or option available to overcome this.

code for the chart here:

      LineChart lc = new LineChart();
	lc.setOption("legend", "right");
	lc.setOption("is3D", true);
	lc.addLine("Turn over");
	lc.setColors( "green");

am updating the chart using the values form Database.

Thanks in advance…