import java.awt.*; /** An example of translating and rotating the coordinate * system before each drawing. * ******************************* public class RotationExample extends StrokeThicknessExample { private Color[] colors = { Color.white, Color.black }; public void paintComponent(Graphics g) { clear(g); Graphics2D g2d = (Graphics2D)g; drawGradientCircle(g2d); drawThickCircleOutline(g2d); // Move the origin to the center of the circle. g2d.translate(185.0, 185.0); for (int i=0; i<16; i++) { // Rotate the coordinate system around current // origin, which is at the center of the circle. g2d.rotate(Math.PI/8.0); g2d.setPaint(colors[i%2]); g2d.drawString("Java", 0, 0); } } public static void main(String[] args) { WindowUtilities.openInJFrame(new RotationExample(), 380, 400); } }
RotationExample.java An example of translating and rotating the coordinate system prior to drawing
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