Impl mit Translate

Aufgabe8_Grafik2D/manifest.mf

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+X-COMMENT: Main-Class will be added automatically by build
+

Aufgabe8_Grafik2D/nbproject/private/private.properties

@@ -0,0 +1,2 @@
+compile.on.save=true
+user.properties.file=C:\\Users\\Js-Sc\\AppData\\Roaming\\NetBeans\\19\\build.properties

src/aufgabe8_grafik2d/Zeiger.java

@@ -17,6 +17,7 @@ import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
 import javax.swing.JComponent;
 
+
 /**
  *
  * @author ahren
@@ -26,7 +27,7 @@ public class Zeiger extends JComponent implements Runnable
   private static final float DICKE = 4f;
   private Line2D.Float linie;
   private BasicStroke stift;
-  private volatile float radius;
+  private volatile double radius;
   private volatile float xMitte;
   private volatile float yMitte;
   private volatile double xAussen;
@@ -36,7 +37,7 @@ public class Zeiger extends JComponent implements Runnable
   private int zeigerlaenge;
   private ExecutorService eService;
   private Future task;
-  
+
   public Zeiger(long schlafzeit, int zeigerlaenge)
   {
     this.schlafzeit = schlafzeit;
@@ -57,8 +58,6 @@ public class Zeiger extends JComponent implements Runnable
       synchronized(this)
       {
         alpha += 0.1;
-        xAussen = xMitte +cos(2*PI*alpha) * radius;
-        yAussen = yMitte + sin(2*PI*alpha) * radius;
       }
       this.repaint();
       try
@@ -84,28 +83,28 @@ public class Zeiger extends JComponent implements Runnable
   {
     super.paintComponent(g);
     Graphics2D g2 = (Graphics2D)g;
-    
+
     g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                         RenderingHints.VALUE_ANTIALIAS_ON);
-    
+
     float breite = this.getWidth() - 1;
     float hoehe = this.getHeight() - 1;
- 
-
-    float radius = (min(hoehe, breite)/2 - 50) * 1/ zeigerlaenge;
-    
-    xMitte = breite/2;
-    yMitte = hoehe/2;
-    xAussen = xMitte +cos(2*PI*alpha) * radius;
-    yAussen = yMitte + sin(2*PI*alpha) * radius;
-    
-    linie.setLine(xMitte, yMitte, xAussen, yAussen);
-    
+
+    radius = (min(hoehe, breite)/2 * 0.9) * 1/ zeigerlaenge;
+
+    g2.translate(breite/2, hoehe/2);
+    g2.rotate(alpha);
+
+
+    xAussen = radius;
+    yAussen = 0;
+
+    linie.setLine(0, 0, xAussen, yAussen);
     g2.setStroke(stift);
     g2.setPaint(Color.RED);
     g2.draw(linie);
   }
-  
+
 }