Changed the clipboard so it doesn't store min/max anymore, just origin and offset. Added /editrotate.

src/com/sk89q/worldedit/Vector.java

@@ -356,6 +356,29 @@ public class Vector {
                 Math.pow(pt.z - z, 2));
     }
 
+    /**
+     * 2D transformation.
+     * 
+     * @param vec
+     * @param angle in degrees
+     * @param aboutX
+     * @param aboutY
+     * @param translateX
+     * @param translateY
+     * @return
+     */
+    public Vector transform2D(double angle,
+            double aboutX, double aboutZ, double translateX, double translateZ) {
+        angle = Math.toRadians(angle);
+        double x = this.x;
+        double z = this.z;
+        double x2 = x * Math.cos(angle) - z * Math.sin(angle);
+        double z2 = x * Math.sin(angle) + z * Math.cos(angle);
+        return new Vector(x2 + aboutX + translateX,
+                          y,
+                          z2 + aboutZ + translateZ);
+    }
+
     /**
      * Get a block point from a point.
      *