question: get width-to-height ratio of image . concode_field_sep int MIN_HEIGHT concode_elem_sep int plotnum concode_elem_sep int MAX_HEIGHT concode_elem_sep RenderedImage plot concode_elem_sep int width concode_elem_sep LinearScale scale concode_elem_sep Logging LOG concode_elem_sep ClusterOrder co concode_elem_sep StylingPolicy colors concode_elem_sep int height concode_elem_sep double ratio concode_field_sep String getSVGPlotURI concode_elem_sep double scaleFromPixel concode_elem_sep OPTICSPlot plotForClusterOrder concode_elem_sep int getWidth concode_elem_sep ClusterOrder getClusterOrder concode_elem_sep String getLongName concode_elem_sep int getHeight concode_elem_sep LinearScale getScale concode_elem_sep RenderedImage getPlot concode_elem_sep int scaleToPixel concode_elem_sep void replot concode_elem_sep String getShortName concode_elem_sep LinearScale computeScale concode_elem_sep void forgetRenderedImage
target: double function ( ) { if ( plot == null ) { replot ( ) ; } return ratio ; }