How do I convert a Graphics object into an Image object?


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Thread: How do I convert a Graphics object into an Image object?

  1. #1
    Join Date
    May 2005
    Posts
    75

    How do I convert a Graphics object into an Image object?

    I'm working within an application using JFrame, and what I want to do is create an Image, draw to the image using the methods of Graphics, and then display the image as an Icon.

    If this isn't possible (which I doubt) then how would I work with Graphics objects outside of applets?

    Thanks!

  2. #2
    Join Date
    Nov 2004
    Location
    Norway
    Posts
    1,560

    This will do the trick

    You can create a BufferedImage (height, width & type), do a getGraphics to get the graphics context and draw into it:

    Code:
    BufferedImage memImg=new BufferedImage(applet.getWidth(), applet.getHeight(),BufferedImage.TYPE_INT_RGB);
    memG=memImg.getGraphics();
    memG.setColor(.......
    Then, in the paintComponent(Graphics g) method of your image display JFrame (or JPanel) extension you draw the bufferedImage, just like an ordinary java.awt.Image.
    Last edited by sjalle; 01-10-2006 at 01:51 AM.
    eschew obfuscation

  3. #3
    Join Date
    May 2005
    Posts
    75
    Thanks sjalle It's a little rough around the edges but the image was created

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