question: public BufferedImage toImage ( Drawing drawing , java . util . List < Figure > figures , AffineTransform transform , Dimension imageSize ) { Color background = drawing . get ( CANVAS_FILL_COLOR ) ; double opacity = drawing . get ( CANVAS_FILL_OPACITY ) ; if ( background == null ) { background = new Color ( 0xff , 0xff , 0xff , 0x0 ) ; } else { background = new Color ( background . getRed ( ) , background . getGreen ( ) , background . getBlue ( ) , ( int ) ( background . getAlpha ( ) * opacity ) ) ; } BufferedImage buf = new BufferedImage ( Math . max ( 1 , imageSize . width ) , Math . max ( 1 , imageSize . height ) , ( background . getAlpha ( ) == 255 ) ? BufferedImage . TYPE_INT_RGB : BufferedImage . TYPE_INT_ARGB ) ; Graphics2D g = buf . createGraphics ( ) ; Composite savedComposite = g . getComposite ( ) ; g . setComposite ( AlphaComposite . getInstance ( AlphaComposite . SRC ) ) ; g . setColor ( background ) ; g . fillRect ( 0 , 0 , buf . getWidth ( ) , buf . getHeight ( ) ) ; g . setComposite ( savedComposite ) ; setRenderingHints ( g ) ; g . transform ( transform ) ; for ( Figure f : figures ) { f . draw ( g ) ; } g . dispose ( ) ; if ( imageType != BufferedImage . TYPE_INT_ARGB ) { BufferedImage buf2 = new BufferedImage ( buf . getWidth ( ) , buf . getHeight ( ) , imageType ) ; g = buf2 . createGraphics ( ) ; setRenderingHints ( g ) ; g . setComposite ( AlphaComposite . getInstance ( AlphaComposite . SRC ) ) ; g . drawImage ( buf , 0 , 0 , null ) ; g . dispose ( ) ; buf . flush ( ) ; buf = buf2 ; } return buf ; }
target:  Creates a BufferedImage from the specified list of figures.