Bug 128582 Set jpg image to chart background, preview in html, background image is displayed incorrectly.
Set jpg image to chart background, preview in html, background image is displayed incorrectly. Steps: 1.Create a bar chart 2.Set image to chart background 3.Preview in html Actual Results: 1.See the attachment Expected Results: 1.The background image can be previewed correctly.
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGGraphics2D.java
elem.setAttribute( "ry", Double.toString( arg3 ) ); 
		return elem;
	}
	protected Element createArc( double x, double y, double width,
			double height, double startAngle, double arcAngle )
	{
		Element elem = createElement( "path" ); 
		double startX = x * Math.cos( startAngle );
		double startY = y * Math.sin( startAngle );
		double endX = x * Math.cos( startAngle + arcAngle );
		double endY = y * Math.sin( startAngle + arcAngle );
		int sweepFlag = ( arcAngle < 0 ) ? 0 : 1;
		elem.setAttribute( "d", "M" + startX + "," + startY + " a" + width / 2 + "," + height / 2 + " " + Math.abs( arcAngle ) + " 0 " + sweepFlag + " " + endX + " " + endY ); 
		return elem;
	}
	public Element createPolyline( int[] arg0, int[] arg1, int arg2 )
	{
		Element elem = createElement( "polyline" ); 
		StringBuffer pointsStr = new StringBuffer( );
		;
		for ( int x = 0; x < arg2; x++ )
		{
			pointsStr.append( arg0[x] )
					.append( "," ).append( arg1[x] ).append( " " ); 
		}
		elem.setAttribute( "points", pointsStr.toString( ) ); 
		return elem;
	}
	public Element createPolygon( int[] arg0, int[] arg1, int arg2 )
	{