111 lines
3.6 KiB
Java
111 lines
3.6 KiB
Java
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/**
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* <p><EFBFBD>berschrift: GDV aufg1</p>
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* <p>Beschreibung: </p>
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* <p>Copyright: Copyright (c) 2005</p>
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* <p>Organisation: </p>
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* @author Vanessa Fischer, Nikolas Isensee (Gruppe 23)
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* @version 1.0
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*/
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import java.awt.*;
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import java.awt.geom.*;
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import javax.swing.JFrame;
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public class CircleColouring
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extends JFrame
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{
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public CircleColouring()
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{
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JFrame frame = new JFrame();
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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}
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public void paint(Graphics g)
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{
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Graphics2D g2d = (Graphics2D) g;
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//Verwendung von Antialiasing, um die Raender weniger ausgefranst
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//erscheinen zu lassen
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g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
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RenderingHints.VALUE_ANTIALIAS_ON);
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//Die Linien sollen eine Dicke von 1.5 statt 1.0 haben.
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BasicStroke bs = new BasicStroke(1.0f);
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g2d.setStroke(bs);
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//Rot {Anfangswert, Zielwert}
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int[] red =
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{
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172, 217
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};
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//Gr<47>n {Anfangswert, Zielwert}
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int[] green =
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{
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3, 219
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};
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//Blau {Anfangswert, Zielwert}
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int[] blue =
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{
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3, 17
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};
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//rgb-Matrix
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int steps = 1440; //Anzahl Morph-Schritte
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int[] re = new int[steps + 1];
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int[] gr = new int[steps + 1];
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int[] bl = new int[steps + 1];
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float alpha;
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float stepsDouble = steps;
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float x, y, x2, y2;
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int r = 100;
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double winkel = 0;
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x = (float) (r * Math.cos(winkel));
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x2 = x + 20;
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y = (float) (r * Math.sin(winkel));
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y2 = (y * x2) / x;
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Color color = new Color(red[0], green[0], blue[0]);
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GeneralPath gp = new GeneralPath();
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gp.moveTo(x, y);
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gp.lineTo(x2, y2);
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g2d.setColor(color);
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g2d.draw(gp);
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for (int i = 1; i <= steps; i++)
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{
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alpha = i / stepsDouble;
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winkel = winkel + 0.125;
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double winkel1 = winkel * Math.PI / 180;
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re[i] = (int) ( (1 - alpha) * red[0] + alpha * red[1]);
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gr[i] = (int) ( (1 - alpha) * green[0] + alpha * green[1]);
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bl[i] = (int) ( (1 - alpha) * blue[0] + alpha * blue[1]);
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Color c = new Color(re[i], gr[i], bl[i]);
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g2d.setColor(c);
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if (winkel <= 90)
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{
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x = (float) (Math.abs(r * Math.cos(winkel1))) + 150;
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x2 = (float) (Math.abs( (r - 60) * Math.cos(winkel1))) + 150;
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y = (float) (Math.abs(r * Math.sin(winkel1))) + 150;
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y2 = (float) (Math.abs( (r - 60) * Math.sin(winkel1))) + 150;
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}
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else
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{
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x = (float) ( -1 * (Math.abs(r * Math.cos(winkel1))) + 150);
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x2 = (float) ( -1 * (Math.abs( (r - 60) * Math.cos(winkel1))) + 150);
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y = (float) (Math.abs(r * Math.sin(winkel1))) + 150;
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y2 = (float) (Math.abs( (r - 60) * Math.sin(winkel1))) + 150;
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}
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GeneralPath gp1 = new GeneralPath();
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gp1.moveTo(x, y);
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gp1.lineTo(x2, y2);
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g2d.setColor(c);
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g2d.draw(gp1);
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}
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}
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public static void main(String[] args)
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{
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CircleColouring a3 = new CircleColouring();
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a3.setTitle("Farbkreis");
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a3.setSize(400, 400);
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a3.setVisible(true);
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}
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}
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