i5SPCChart loading event ?

I use the following to add i5chart to my sapui5 page in MII :

• var i5SPC = new com.sap.xmii.chart.hchart.i5SPCChart("<Display Template>", "<Query Template>");
• i5SPC.setChartWidth("640px");
• i5SPC.setChartHeight("400px");

but the sapui5 app freez for one min until the i5chart is loaded, is there any load event for the i5spc chart so that I can use the busy loading indicator for the page and when the i5spc loaded I will stop the busy loading ?