Bug 118738 can't preview meter chart with grouping
Try to preview the following report with a meter chart group on the Y series, it fails. It used to work before, this is a regression. An exception is thrown org.eclipse.birt.chart.exception.ChartException: Can not plot meter series with null or non-numeric datapoint. at org.eclipse.birt.chart.render.DialRenderer.<init>(DialRenderer.java:132) at org.eclipse.birt.chart.render.Dial.compute(Dial.java:98) at org.eclipse.birt.chart.factory.Generator.build(Generator.java:759)
chart/org.eclipse.birt.chart.device.extension/src/org/eclipse/birt/chart/device/image/JavaxImageIOWriter.java
*/
	private String shape2polyCoords( Shape shape )
	{
		if ( shape == null )
		{
			return null;
		}
		ArrayList al = new ArrayList( );
		PathIterator pitr = shape.getPathIterator( null );
		double[] data = new double[6];
		
		while ( !pitr.isDone( ) )
		{
			int type = pitr.currentSegment( data );
			switch ( type )
			{
				case PathIterator.SEG_MOVETO :
					al.add( new Double( data[0] ) );
					al.add( new Double( data[1] ) );
					break;
				case PathIterator.SEG_LINETO :
					al.add( new Double( data[0] ) );
					al.add( new Double( data[1] ) );
					break;
				case PathIterator.SEG_QUADTO :
					al.add( new Double( data[0] ) );
					al.add( new Double( data[1] ) );
					al.add( new Double( data[2] ) );
					al.add( new Double( data[3] ) );
					break;