/**
 * A chart showing the distribution of the number of WiFis per MAC and highlights the active clients bucket
 * Code based on http://bl.ocks.org/Caged/6476579
 */

var activeClientTreeObj; // The tree chart object for the active client SSIDs chart
function updateSsidChart(closestActiveClientSSIDInfo) {
	// Draw the tree the first time with demo data, will be updated with real information as soon as it is available
	var treeObj = activeClientTreeObj || d3Tree.createTree(closestActiveClientSSIDInfo, d3.select(".ssidTreeChart"), {
		margins: [20, 20, 20, 270],
		width: screenSize.width * 0.42, height: screenSize.height,
	});
	if(!activeClientTreeObj) {
		activeClientTreeObj = treeObj;
		return;
	}
	d3Tree.update(activeClientTreeObj);
	activeClientTreeObj = treeObj; // Store in global var
}