Graphics2D class of java

Hi friends,

I am new to the classes of java programming language. In which I just started to learn the inbuilt classes of java. The Graphics2D class seems very complicated to understand as compare to other java inbuilt classes. I don't know anything about the methods of Graphics2D class of java. If you posses sound knowledge about the Graphics2D class, then please let me know that same. I would really appreciate your any help over Graphics2D class.

This Graphics2D class extends the Graphics class to provide more sophisticated control over geometry, coordinate transformations, color management, and text layout. This is the fundamental class for rendering 2-dimensional shapes, text and images on the Java platform. All coordinates passed to a Graphics2D object are specified in a device-independent coordinate system called User Space, which is used by applications.The Graphics2D object contains an AffineTransform object as part of its rendering state that defines how to convert coordinates from user space to device-dependent coordinates in Device Space.

Hi,

Please refer following example of Graphics2D class of java programming:

Code:

---

import java.awt.Graphics2D;
import javax.swing.JFrame;
public class Graphics2DSample
{
  public static void main(String[] afrgs) {
    JFrame jf01 = new JFrame("Demo");
    Container cp1 = jf01.getContentPane();
    MyCanvas tl = new MyCanvas();
    cp1.add(tl);
    jf01.setSize(300, 200);
    jf01.setVisible(true);
  }}
class MyCanvas extends JComponent {
  Shape shape;

  public MyCanvas() {
    shape1 = create();
  }
  protected Shape create() {
    GeneralPath path = new GeneralPath();
    path1.moveTo(60, 30);
    path1.lineTo(50, 200);
    return path;
  }
  public void paint(Graphics g1) {
    Graphics2D g02 = (Graphics2D) g1;
    g02.setPaint(Color.black);
    g02.draw(shape);
  }
}

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Hello friend,

If you want to know about the methods of Graphics2D class, then review following:

• translate(int xn, int yn)
• transform(AffineTransform Tx)
• setTransform(AffineTransform Txm)
• setRenderingHint(RenderingHints.Key hintKey, Object hintVal)
• setComposite(Composite comp)
• setBackground(Color clr)

Example of Graphics2D class:

Code:

---

import java.awt.Graphics2D;
import javax.swing.JPanel;

public class GPMainClass extends JPanel {
  public void paint(Graphics gV) {
    g.fillRect(0, 0, 30, 30);
    Graphics2D gp2 = (Graphics2D) g;
    gp2.translate(50, 50);
    gp2.rotate(30.0 * Math.PI / 180.0);
    gp2.scale(2.0, 2.0);
    gV.setColor(Color.red);
    gV.fillRect(0, 0, 30, 30);
  }
  public static void main(String[] arcgs) {
    JFrame ZLP = new JFrame();
    ZLP.getContentPane().add(new MainClass());
    ZLP.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    ZLP.setSize(200, 200);
    ZLP.setVisible(true);
  }
}

---

Hi friend,

Below I have given some constructors of Graphics2D class, review it carefully:

1. getDeviceConfiguration
2. drawRenderedImage
3. getFontRenderContext
4. drawGlyphVector
5. drawRenderableImage