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utilities.cpp
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utilities.cpp
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/*
* This file is part of the SPLINTER library.
* Copyright (C) 2012 Bjarne Grimstad (bjarne.grimstad@gmail.com).
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include "utilities.h"
namespace SPLINTER
{
std::vector<double> denseVectorToVector(const DenseVector &denseVec)
{
std::vector<double> vec(denseVec.size());
for(size_t i = 0; i < (size_t) denseVec.size(); ++i)
{
vec.at(i) = denseVec(i);
}
return vec;
}
DenseVector vectorToDenseVector(const std::vector<double> &vec)
{
DenseVector denseVec(vec.size());
for(size_t i = 0; i < vec.size(); ++i)
{
denseVec(i) = vec.at(i);
}
return denseVec;
}
std::vector<std::vector<double>> denseMatrixToVectorVector(const DenseMatrix &mat)
{
std::vector<std::vector<double>> vec(mat.rows());
for(size_t i = 0; i < (size_t) mat.rows(); ++i)
{
for(size_t j = 0; j < (size_t) mat.cols(); ++j)
{
vec.at(i).push_back(mat(i, j));
}
}
return vec;
}
DenseMatrix vectorVectorToDenseMatrix(const std::vector<std::vector<double>> &vec)
{
size_t numRows = vec.size();
size_t numCols = numRows > 0 ? vec.at(0).size() : 0;
DenseMatrix mat(numRows, numCols);
for(size_t i = 0; i < numRows; ++i)
{
for(size_t j = 0; j < numCols; ++j)
{
mat(i, j) = vec.at(i).at(j);
}
}
return mat;
}
std::vector<double> linspace(double start, double stop, unsigned int num)
{
std::vector<double> ret;
double dx = 0;
if (num > 1)
dx = (stop - start)/(num-1);
for (unsigned int i = 0; i < num; ++i)
ret.push_back(start + i*dx);
return ret;
}
} // namespace SPLINTER