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authorGravatar Gael Guennebaud <g.gael@free.fr>2009-03-05 10:25:22 +0000
committerGravatar Gael Guennebaud <g.gael@free.fr>2009-03-05 10:25:22 +0000
commit0be89a4796543a7e7b8c244d3f1aabcf672cf114 (patch)
tree71333c6903892087dfd7f7a9343e390f0a4a6866 /test/array_replicate.cpp
parentd710ccd41e0819024ee168dafe7e7e5b8a7f0e45 (diff)
big addons:
* add Homogeneous expression for vector and set of vectors (aka matrix) => the next step will be to overload operator* * add homogeneous normalization (again for vector and set of vectors) * add a Replicate expression (with uni-directional replication facilities) => for all of them I'll add examples once we agree on the API * fix gcc-4.4 warnings * rename reverse.cpp array_reverse.cpp
Diffstat (limited to 'test/array_replicate.cpp')
-rw-r--r--test/array_replicate.cpp86
1 files changed, 86 insertions, 0 deletions
diff --git a/test/array_replicate.cpp b/test/array_replicate.cpp
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+++ b/test/array_replicate.cpp
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+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra. Eigen itself is part of the KDE project.
+//
+// Copyright (C) 2009 Gael Guennebaud <g.gael@free.fr>
+//
+// Eigen is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 3 of the License, or (at your option) any later version.
+//
+// Alternatively, you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of
+// the License, or (at your option) any later version.
+//
+// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License and a copy of the GNU General Public License along with
+// Eigen. If not, see <http://www.gnu.org/licenses/>.
+
+#include "main.h"
+#include <Eigen/Array>
+
+template<typename MatrixType> void replicate(const MatrixType& m)
+{
+ /* this test covers the following files:
+ Replicate.cpp
+ */
+
+ typedef typename MatrixType::Scalar Scalar;
+ typedef typename NumTraits<Scalar>::Real RealScalar;
+ typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> VectorType;
+ typedef Matrix<Scalar, Dynamic, Dynamic> MatrixX;
+ typedef Matrix<Scalar, Dynamic, 1> VectorX;
+
+ int rows = m.rows();
+ int cols = m.cols();
+
+ MatrixType m1 = MatrixType::Random(rows, cols),
+ m2 = MatrixType::Random(rows, cols);
+
+ VectorType v1 = VectorType::Random(rows);
+
+ MatrixX x1, x2;
+ VectorX vx1;
+
+ int f1 = ei_random<int>(1,10),
+ f2 = ei_random<int>(1,10);
+
+ x1.resize(rows*f1,cols*f2);
+ for(int j=0; j<f2; j++)
+ for(int i=0; i<f1; i++)
+ x1.block(i*rows,j*cols,rows,cols) = m1;
+ VERIFY_IS_APPROX(x1, m1.replicate(f1,f2));
+
+ x2.resize(2*rows,3*cols);
+ x2 << m2, m2, m2,
+ m2, m2, m2;
+ VERIFY_IS_APPROX(x2, (m2.template replicate<2,3>()));
+
+ x2.resize(rows,f1);
+ for (int j=0; j<f1; ++j)
+ x2.col(j) = v1;
+ VERIFY_IS_APPROX(x2, v1.rowwise().replicate(f1));
+
+ vx1.resize(rows*f2);
+ for (int j=0; j<f2; ++j)
+ vx1.segment(j*rows,rows) = v1;
+ VERIFY_IS_APPROX(vx1, v1.colwise().replicate(f2));
+}
+
+void test_array_replicate()
+{
+ for(int i = 0; i < g_repeat; i++) {
+ CALL_SUBTEST( replicate(Matrix<float, 1, 1>()) );
+ CALL_SUBTEST( replicate(Vector2f()) );
+ CALL_SUBTEST( replicate(Vector3d()) );
+ CALL_SUBTEST( replicate(Vector4f()) );
+ CALL_SUBTEST( replicate(VectorXf(16)) );
+ CALL_SUBTEST( replicate(VectorXcd(10)) );
+ }
+}