Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.device.swt/src/org/eclipse/birt/chart/device/swt/SwtTextRenderer.java
yDestSineTheta = yDest * dSineTheta;
			for ( xDest = -neg; xDest < xMax; xDest++ )
			{
				
				xSrc = (int) Math.round( xDest * dCosTheta + yDestSineTheta );
				ySrc = (int) Math.round( yDestCosTheta - xDest * dSineTheta );
				if ( xSrc < 0 || xSrc >= clipWs || ySrc < 0 || ySrc >= clipHs ) 
				
				
				{
					continue;
				}
				
				x = xDest + neg;
				y = yDest + pos;
				if ( x < 0 || x >= clipWt || y < 0 || y >= clipHt ) 
				
				{
					continue;
				}
				
				imgdtaT.setPixel( x, y, imgdtaS.getPixel( xSrc, ySrc ) );
			}
		}
		imgSource.dispose( );
		
		return new Image( getDevice( ), imgdtaT );
	}
	
	/**