SMScrambleShift.java

/*
 * Class:        SMScrambleShift
 * Description:  Performs a striped matrix scrambling with a digital shift
 * Environment:  Java
 * Software:     SSJ 
 * Copyright (C) 2001  Pierre L'Ecuyer and Universite de Montreal
 * Organization: DIRO, Universite de Montreal
 * @author       
 * @since
 *
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
package umontreal.ssj.hups;
 
import umontreal.ssj.rng.RandomStream;
import java.lang.IllegalArgumentException;

public class SMScrambleShift extends RandomShift {

   public SMScrambleShift() {
   }

   public SMScrambleShift(RandomStream stream) {
      super(stream);
   }

   public void randomize(PointSet p) {
      if (p instanceof DigitalNet) {
         ((DigitalNet) p).stripedMatrixScramble(stream);
         ((DigitalNet) p).addRandomShift(stream);
      } else {
         throw new IllegalArgumentException("SMScrambleShift" + " can only randomize a DigitalNet");
      }
   }

   public String toString() {
      return "Striped matrix scramble + random digital shift";
   }
}