if ( linechartstyle != LineChart.Style.HOLLOW ) {
AreaLineChart ahc = new AreaLineChart();
ahc.setFill( getColor( col ) );
ac = ahc;
} else {
AreaHollowChart ahc = new AreaHollowChart();
ahc.setFill( getColor( col ) );
ac = ahc;
}
Number[] numbers = new Number[getRowCount()];
for ( int row = 0; row < getRowCount(); row++ ) {