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A fast and easy to use dense and sparse matrix linear algebra library written in Java.
/*
* Copyright (c) 2009-2017, Peter Abeles. All Rights Reserved.
*
* This file is part of Efficient Java Matrix Library (EJML).
*
* 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 org.ejml.data;
import org.ejml.ops.MatrixIO;
/**
* Fixed sized 4 by DMatrix4x4 matrix. The matrix is stored as class variables for very fast read/write. aXY is the
* value of row = X and column = Y.
* DO NOT MODIFY. Automatically generated code created by GenerateMatrixFixedNxN
*
* @author Peter Abeles
*/
public class DMatrix4x4 implements DMatrixFixed {
public double a11,a12,a13,a14;
public double a21,a22,a23,a24;
public double a31,a32,a33,a34;
public double a41,a42,a43,a44;
public DMatrix4x4() {
}
public DMatrix4x4( double a11, double a12, double a13, double a14,
double a21, double a22, double a23, double a24,
double a31, double a32, double a33, double a34,
double a41, double a42, double a43, double a44)
{
this.a11 = a11; this.a12 = a12; this.a13 = a13; this.a14 = a14;
this.a21 = a21; this.a22 = a22; this.a23 = a23; this.a24 = a24;
this.a31 = a31; this.a32 = a32; this.a33 = a33; this.a34 = a34;
this.a41 = a41; this.a42 = a42; this.a43 = a43; this.a44 = a44;
}
public DMatrix4x4( DMatrix4x4 o ) {
this.a11 = o.a11; this.a12 = o.a12; this.a13 = o.a13; this.a14 = o.a14;
this.a21 = o.a21; this.a22 = o.a22; this.a23 = o.a23; this.a24 = o.a24;
this.a31 = o.a31; this.a32 = o.a32; this.a33 = o.a33; this.a34 = o.a34;
this.a41 = o.a41; this.a42 = o.a42; this.a43 = o.a43; this.a44 = o.a44;
}
@Override
public double get(int row, int col) {
return unsafe_get(row,col);
}
@Override
public double unsafe_get(int row, int col) {
if( row == 0 ) {
if( col == 0 ) {
return a11;
} else if( col == 1 ) {
return a12;
} else if( col == 2 ) {
return a13;
} else if( col == 3 ) {
return a14;
}
} else if( row == 1 ) {
if( col == 0 ) {
return a21;
} else if( col == 1 ) {
return a22;
} else if( col == 2 ) {
return a23;
} else if( col == 3 ) {
return a24;
}
} else if( row == 2 ) {
if( col == 0 ) {
return a31;
} else if( col == 1 ) {
return a32;
} else if( col == 2 ) {
return a33;
} else if( col == 3 ) {
return a34;
}
} else if( row == 3 ) {
if( col == 0 ) {
return a41;
} else if( col == 1 ) {
return a42;
} else if( col == 2 ) {
return a43;
} else if( col == 3 ) {
return a44;
}
}
throw new IllegalArgumentException("Row and/or column out of range. "+row+" "+col);
}
@Override
public void set(int row, int col, double val) {
unsafe_set(row,col,val);
}
@Override
public void unsafe_set(int row, int col, double val) {
if( row == 0 ) {
if( col == 0 ) {
a11 = val; return;
} else if( col == 1 ) {
a12 = val; return;
} else if( col == 2 ) {
a13 = val; return;
} else if( col == 3 ) {
a14 = val; return;
}
} else if( row == 1 ) {
if( col == 0 ) {
a21 = val; return;
} else if( col == 1 ) {
a22 = val; return;
} else if( col == 2 ) {
a23 = val; return;
} else if( col == 3 ) {
a24 = val; return;
}
} else if( row == 2 ) {
if( col == 0 ) {
a31 = val; return;
} else if( col == 1 ) {
a32 = val; return;
} else if( col == 2 ) {
a33 = val; return;
} else if( col == 3 ) {
a34 = val; return;
}
} else if( row == 3 ) {
if( col == 0 ) {
a41 = val; return;
} else if( col == 1 ) {
a42 = val; return;
} else if( col == 2 ) {
a43 = val; return;
} else if( col == 3 ) {
a44 = val; return;
}
}
throw new IllegalArgumentException("Row and/or column out of range. "+row+" "+col);
}
@Override
public void set(Matrix original) {
if( original.getNumCols() != 4 || original.getNumRows() != 4 )
throw new IllegalArgumentException("Rows and/or columns do not match");
DMatrix m = (DMatrix)original;
a11 = m.get(0,0);
a12 = m.get(0,1);
a13 = m.get(0,2);
a14 = m.get(0,3);
a21 = m.get(1,0);
a22 = m.get(1,1);
a23 = m.get(1,2);
a24 = m.get(1,3);
a31 = m.get(2,0);
a32 = m.get(2,1);
a33 = m.get(2,2);
a34 = m.get(2,3);
a41 = m.get(3,0);
a42 = m.get(3,1);
a43 = m.get(3,2);
a44 = m.get(3,3);
}
@Override
public int getNumRows() {
return 4;
}
@Override
public int getNumCols() {
return 4;
}
@Override
public int getNumElements() {
return 16;
}
@Override
public T copy() {
return (T)new DMatrix4x4(this);
}
@Override
public void print() {
MatrixIO.print(System.out, this);
}
@Override
public T createLike() {
return (T)new DMatrix4x4();
}
}