UnscentedEvolution.java

  1. /*
  2.  * Licensed to the Hipparchus project under one or more
  3.  * contributor license agreements.  See the NOTICE file distributed with
  4.  * this work for additional information regarding copyright ownership.
  5.  * The Hipparchus project licenses this file to You under the Apache License, Version 2.0
  6.  * (the "License"); you may not use this file except in compliance with
  7.  * the License.  You may obtain a copy of the License at
  8.  *
  9.  *      https://www.apache.org/licenses/LICENSE-2.0
  10.  *
  11.  * Unless required by applicable law or agreed to in writing, software
  12.  * distributed under the License is distributed on an "AS IS" BASIS,
  13.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14.  * See the License for the specific language governing permissions and
  15.  * limitations under the License.
  16.  */
  17. package org.hipparchus.filtering.kalman.unscented;

  18. import org.hipparchus.linear.RealVector;

  19. /**
  20.  * Container for {@link UnscentedProcess unscented process} evolution data.
  21.  * @see UnscentedProcess
  22.  * @since 2.2
  23.  */
  24. public class UnscentedEvolution {

  25.     /** Current time. */
  26.     private final double currentTime;

  27.     /** State vectors at current time. */
  28.     private final RealVector[] currentStates;

  29.     /**
  30.      * Constructor.
  31.      * @param currentTime current time
  32.      * @param currentStates state vectors at current time
  33.      */
  34.     public UnscentedEvolution(final double currentTime, final RealVector[] currentStates) {
  35.         this.currentTime         = currentTime;
  36.         this.currentStates       = currentStates.clone();
  37.     }

  38.     /** Get current time.
  39.      * @return current time
  40.      */
  41.     public double getCurrentTime() {
  42.         return currentTime;
  43.     }

  44.     /** Get current states.
  45.      * @return current states
  46.      */
  47.     public RealVector[] getCurrentStates() {
  48.         return currentStates.clone();
  49.     }

  50. }