Java/2D Graphics GUI/Arc
Содержание
Arc2D.CHORD
<source lang="java"> import java.awt.Frame; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.geom.Arc2D; public class MainClass extends Frame {
public static void main(String[] args) { (new MainClass()).setVisible(true); } public MainClass() { super("Shape Sampler"); setSize(400, 550); } public void paint(Graphics g) { Graphics2D g2d = (Graphics2D) g; Arc2D arc = new Arc2D.Float(200, 50, 100, 50, 0, 90, Arc2D.CHORD); g2d.draw(arc); }
}
</source>
Arc2D.Float: Arc2D.OPEN
<source lang="java"> import java.awt.Frame; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.geom.Arc2D; public class MainClass extends Frame {
public static void main(String[] args) { (new MainClass()).setVisible(true); } public MainClass() { super("Shape Sampler"); setSize(400, 550); } public void paint(Graphics g) { Graphics2D g2d = (Graphics2D) g; Arc2D arc = new Arc2D.Float(200, 50, 100, 50, 0, 90, Arc2D.OPEN); g2d.draw(arc); }
}
</source>
Arc2D.PIE
<source lang="java"> import java.awt.Frame; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.geom.Arc2D; public class MainClass extends Frame {
public static void main(String[] args) { (new MainClass()).setVisible(true); } public MainClass() { super("Shape Sampler"); setSize(400, 550); } public void paint(Graphics g) { Graphics2D g2d = (Graphics2D) g; Arc2D arc = new Arc2D.Float(200, 50, 100, 50, 0, 90, Arc2D.PIE); g2d.draw(arc); }
}
</source>
Compares two arcs and returns true if they are equal or both null.
<source lang="java"> import java.awt.geom.Arc2D; public class Main {
/** * Compares two arcs and returnstrue
if they are equal or * bothnull
. * * @param a1 the first arc (null
permitted). * @param a2 the second arc (null
permitted). * * @return A boolean. */ public static boolean equal(final Arc2D a1, final Arc2D a2) { if (a1 == null) { return (a2 == null); } if (a2 == null) { return false; } if (!a1.getFrame().equals(a2.getFrame())) { return false; } if (a1.getAngleStart() != a2.getAngleStart()) { return false; } if (a1.getAngleExtent() != a2.getAngleExtent()) { return false; } if (a1.getArcType() != a2.getArcType()) { return false; } return true; }
}
</source>
Draw draw an arc outline
<source lang="java"> import java.awt.Color; import java.awt.Graphics; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JPanel {
public static void main(String[] a) { JFrame f = new JFrame(); f.setSize(400, 400); f.add(new MainClass()); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setVisible(true); } public void paint(Graphics g) { g.setColor (Color.yellow); g.drawArc (5, 15, 50, 75, 25, 165); }
}
</source>
Fill an arc outline
<source lang="java"> import java.awt.Color; import java.awt.Graphics; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JPanel {
public static void main(String[] a) { JFrame f = new JFrame(); f.setSize(400, 400); f.add(new MainClass()); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setVisible(true); } public void paint(Graphics g) { g.setColor (Color.yellow); g.fillArc (5, 15, 50, 75, 25, 165); }
}
</source>