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1   package org.djunits.value.vdouble.matrix.base;
2   
3   import org.djunits.unit.AbsoluteLinearUnit;
4   import org.djunits.unit.Unit;
5   import org.djunits.value.Absolute;
6   import org.djunits.value.ValueRuntimeException;
7   import org.djunits.value.vdouble.function.DoubleMathFunctions;
8   import org.djunits.value.vdouble.matrix.data.DoubleMatrixData;
9   import org.djunits.value.vdouble.scalar.base.DoubleScalarAbs;
10  import org.djunits.value.vdouble.scalar.base.DoubleScalarRelWithAbs;
11  import org.djunits.value.vdouble.vector.base.DoubleVectorAbs;
12  import org.djunits.value.vdouble.vector.base.DoubleVectorRelWithAbs;
13  import org.djunits.value.vdouble.vector.data.DoubleVectorData;
14  
15  /**
16   * AbstractMutableDoubleMatrixRelWithAbs.java.
17   * <p>
18   * Copyright (c) 2019-2024 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
19   * BSD-style license. See <a href="https://djunits.org/docs/license.html">DJUNITS License</a>.
20   * </p>
21   * @author <a href="https://www.tudelft.nl/averbraeck" target="_blank">Alexander Verbraeck</a>
22   * @param <AU> the absolute unit belonging to the relative unit
23   * @param <A> the absolute scalar type belonging to the absolute matrix type
24   * @param <AV> the absolute vector type belonging to the absolute matrix type
25   * @param <AM> the (immutable or mutable) absolute matrix type
26   * @param <RU> the relative unit belonging to the absolute unit
27   * @param <R> the relative scalar type belonging to the relative matrix type
28   * @param <RV> the relative vector type belonging to the relative matrix type
29   * @param <RM> the relative (immutable or mutable) matrix type with this unit
30   */
31  // @formatter:off
32  public abstract class DoubleMatrixAbs<
33          AU  extends AbsoluteLinearUnit<AU, RU>, 
34          A   extends DoubleScalarAbs<AU, A, RU, R>,
35          AV  extends DoubleVectorAbs<AU, A, AV, RU, R, RV>,
36          AM  extends DoubleMatrixAbs<AU, A, AV, AM, RU, R, RV, RM>, 
37          RU  extends Unit<RU>,
38          R   extends DoubleScalarRelWithAbs<AU, A, RU, R>,
39          RV  extends DoubleVectorRelWithAbs<AU, A, AV, RU, R, RV>,
40          RM  extends DoubleMatrixRelWithAbs<AU, A, AV, AM, RU, R, RV, RM>>
41          extends DoubleMatrix<AU, A, AV, AM>
42          implements Absolute<AU, AM, RU, RM>
43  // @formatter:on
44  {
45      /** */
46      private static final long serialVersionUID = 20190908L;
47  
48      /**
49       * Construct a new Relative Mutable DoubleMatrix.
50       * @param data DoubleMatrixData; an internal data object
51       * @param unit AU; the unit
52       */
53      protected DoubleMatrixAbs(final DoubleMatrixData data, final AU unit)
54      {
55          super(data.copy(), unit);
56      }
57  
58      @Override
59      public AM plus(final RM increment) throws ValueRuntimeException
60      {
61          return instantiateMatrix(this.getData().plus(increment.getData()), getDisplayUnit());
62      }
63  
64      @Override
65      public AM minus(final RM decrement) throws ValueRuntimeException
66      {
67          return instantiateMatrix(this.getData().minus(decrement.getData()), getDisplayUnit());
68      }
69  
70      @Override
71      public RM minus(final AM decrement) throws ValueRuntimeException
72      {
73          return instantiateMatrixRel(this.getData().minus(decrement.getData()), decrement.getDisplayUnit().getRelativeUnit());
74      }
75  
76      /**
77       * Decrement all values of this matrix by the decrement. This only works if this matrix is mutable.
78       * @param decrement R; the scalar by which to decrement all values
79       * @return AM; this modified vector
80       * @throws ValueRuntimeException in case this vector is immutable
81       */
82      public AM decrementBy(final R decrement)
83      {
84          checkCopyOnWrite();
85          return assign(DoubleMathFunctions.DEC(decrement.si));
86      }
87  
88      /**
89       * Decrement all values of this matrix by the decrement on a value by value basis. This only works if this matrix is
90       * mutable.
91       * @param decrement RM; the matrix that contains the values by which to decrement the corresponding values
92       * @return AV; this modified matrix
93       * @throws ValueRuntimeException in case this matrix is immutable
94       * @throws ValueRuntimeException when the sizes of the matrices differ, or <code>decrement</code> is null
95       */
96      @SuppressWarnings("unchecked")
97      public AM decrementBy(final RM decrement)
98      {
99          checkCopyOnWrite();
100         this.data.decrementBy(decrement.getData());
101         return (AM) this;
102     }
103 
104     /**
105      * Instantiate a new relative matrix of the class of this absolute matrix. This can be used instead of the
106      * DoubleMatrix.instiantiate() methods in case another matrix of this absolute matrix class is known. The method is faster
107      * than DoubleMatrix.instantiate, and it will also work if the matrix is user-defined.
108      * @param dmd DoubleMatrixData; the data used to instantiate the matrix
109      * @param displayUnit RU; the display unit of the relative matrix
110      * @return RM; a relative matrix of the correct type, belonging to this absolute matrix type
111      */
112     public abstract RM instantiateMatrixRel(DoubleMatrixData dmd, RU displayUnit);
113 
114     /**
115      * Instantiate a new relative vector of the class of this absolute matrix. This can be used instead of the
116      * DoubleVector.instiantiate() methods in case another matrix of this absolute matrix class is known. The method is faster
117      * than DoubleVector.instantiate, and it will also work if the matrix or vector is user-defined.
118      * @param dvd DoubleVectorData; the data used to instantiate the vector
119      * @param displayUnit RU; the display unit of the relative vector
120      * @return RV; a relative vector of the correct type, belonging to this absolute matrix type
121      */
122     public abstract RV instantiateVectorRel(DoubleVectorData dvd, RU displayUnit);
123 
124     /**
125      * Instantiate a new relative scalar for the class of this absolute matrix. This can be used instead of the
126      * DoubleScalar.instiantiate() methods in case a matrix of this class is known. The method is faster than
127      * DoubleScalar.instantiate, and it will also work if the matrix and/or scalar are user-defined.
128      * @param valueSI double; the SI value of the relative scalar
129      * @param displayUnit RU; the unit in which the relative value will be displayed
130      * @return R; a relative scalar of the correct type, belonging to this absolute matrix type
131      */
132     public abstract R instantiateScalarRelSI(double valueSI, RU displayUnit);
133 
134 }