public void setUseCache(boolean useCache) {
this.useCache = useCache;
}
protected void addToChart(CTScatterChart ctScatterChart) {
CTScatterSer scatterSer = ctScatterChart.addNewSer();
scatterSer.addNewIdx().setVal(this.id);
scatterSer.addNewOrder().setVal(this.order);
CTAxDataSource xVal = scatterSer.addNewXVal();
CTNumRef numRef = xVal.addNewNumRef();
numRef.setF(xAddress.formatAsString(xSheet.getSheetName(), true));
CTNumDataSource yVal = scatterSer.addNewYVal();
numRef = yVal.addNewNumRef();
numRef.setF(yAddress.formatAsString(ySheet.getSheetName(), true));
}