Alexandria  2.16
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XYDataset.cpp
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1 /*
2  * Copyright (C) 2012-2020 Euclid Science Ground Segment
3  *
4  * This library is free software; you can redistribute it and/or modify it under
5  * the terms of the GNU Lesser General Public License as published by the Free
6  * Software Foundation; either version 3.0 of the License, or (at your option)
7  * any later version.
8  *
9  * This library is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11  * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12  * details.
13  *
14  * You should have received a copy of the GNU Lesser General Public License
15  * along with this library; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
26 #include <utility>
27 #include <algorithm>
28 #include <iostream>
29 
31 #include "XYDataset/XYDataset.h"
32 
33 using namespace std;
34 
35 namespace Euclid {
36 namespace XYDataset {
37 
38 XYDataset::const_iterator XYDataset::begin() const {
39  return m_values.cbegin();
40 }
41 
42 XYDataset::const_iterator XYDataset::end() const {
43  return m_values.cend();
44 }
45 
46 const std::pair<double, double>& XYDataset::front() const {
47  return m_values.front();
48 }
49 
50 const std::pair<double, double>& XYDataset::back() const {
51  return m_values.back();
52 }
53 
54 XYDataset XYDataset::factory(vector<pair<double, double>> vector_pair) {
55  return (XYDataset(move(vector_pair)));
56 }
57 
58 XYDataset XYDataset::factory(const vector<double>& x_vector, const vector<double>& y_vector) {
59  size_t x_size = x_vector.size();
60  size_t y_size = y_vector.size();
61  // Vector must have the same size
62  if ( x_size != y_size) {
63  throw Elements::Exception() << " Vectors must have "
64  << "the same size! x size: %d" <<x_size
65  <<" y_size : %d"<< y_size;
66  }
67 
68  vector<pair<double, double>> vector_pair;
69  vector_pair.reserve(x_size);
70 
71  // Make the pair vector
72  transform(x_vector.begin(), x_vector.end(), y_vector.begin(), back_inserter(vector_pair),
73  [](double a, double b) { return std::make_pair(a, b); });
74 
75  return ( XYDataset(move(vector_pair)) );
76 }
77 
78 } /* namespace XYDataset */
79 } // end of namespace Euclid
std::vector< std::pair< double, double > >::const_iterator const_iterator
Definition: XYDataset.h:64
STL namespace.
T end(T... args)
T make_pair(T... args)
T move(T... args)
T size(T... args)
STL class.
T begin(T... args)
T back_inserter(T... args)
This module provides an interface for accessing two dimensional datasets (pairs of (X,...
Definition: XYDataset.h:59
T transform(T... args)
T reserve(T... args)