Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Toolbox/Extent2D.cpp @ 2124:16c01cc201e7

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updated copyright, as Osimis is not active on Orthanc anymore
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 30 May 2024 17:00:29 +0200
parents c23eef785569
children
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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22
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23
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24 #include "Extent2D.h"
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25
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26 #include <algorithm>
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27 #include <cassert>
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28 #include <limits>
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29
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30 namespace OrthancStone
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31 {
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32 Extent2D::Extent2D(double x1,
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33 double y1,
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34 double x2,
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35 double y2) :
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36 empty_(false),
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37 x1_(x1),
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38 y1_(y1),
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39 x2_(x2),
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40 y2_(y2)
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41 {
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42 if (x1_ > x2_)
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43 {
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44 std::swap(x1_, x2_);
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45 }
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46
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47 if (y1_ > y2_)
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48 {
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49 std::swap(y1_, y2_);
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50 }
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51 }
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52
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53
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54 void Extent2D::Clear()
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55 {
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56 empty_ = true;
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57 x1_ = 0;
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58 y1_ = 0;
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59 x2_ = 0;
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60 y2_ = 0;
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61 }
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62
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63 void Extent2D::AddPoint(double x,
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64 double y)
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65 {
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66 if (empty_)
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67 {
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68 x1_ = x;
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69 y1_ = y;
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70 x2_ = x;
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71 y2_ = y;
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72 empty_ = false;
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73 }
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74 else
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75 {
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76 x1_ = std::min(x1_, x);
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77 y1_ = std::min(y1_, y);
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78 x2_ = std::max(x2_, x);
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79 y2_ = std::max(y2_, y);
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80 }
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81
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82 assert(x1_ <= x2_ &&
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83 y1_ <= y2_); // This is the invariant of the structure
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84 }
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85
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86
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87 void Extent2D::Union(const Extent2D& other)
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88 {
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89 if (other.empty_)
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90 {
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91 return;
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92 }
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93
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94 if (empty_)
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95 {
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96 *this = other;
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97 return;
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98 }
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99
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100 assert(!empty_);
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101
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102 x1_ = std::min(x1_, other.x1_);
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103 y1_ = std::min(y1_, other.y1_);
99
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104 x2_ = std::max(x2_, other.x2_);
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105 y2_ = std::max(y2_, other.y2_);
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106
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107 assert(x1_ <= x2_ &&
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108 y1_ <= y2_); // This is the invariant of the structure
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109 }
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110
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111
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112 bool Extent2D::IsEmpty() const
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113 {
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114 if (empty_)
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115 {
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116 return true;
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117 }
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118 else
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119 {
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120 assert(x1_ <= x2_ &&
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121 y1_ <= y2_);
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122 return (x2_ <= x1_ + 10 * std::numeric_limits<double>::epsilon() ||
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123 y2_ <= y1_ + 10 * std::numeric_limits<double>::epsilon());
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124 }
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125 }
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126
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127
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128 bool Extent2D::Contains(double x,
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129 double y) const
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130 {
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131 if (empty_)
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132 {
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133 return false;
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134 }
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135 else
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136 {
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137 return (x >= x1_ && x <= x2_ &&
62964bfbbc00 Extent2D::Contains
Sebastien Jodogne <s.jodogne@gmail.com>
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138 y >= y1_ && y <= y2_);
62964bfbbc00 Extent2D::Contains
Sebastien Jodogne <s.jodogne@gmail.com>
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139 }
62964bfbbc00 Extent2D::Contains
Sebastien Jodogne <s.jodogne@gmail.com>
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140 }
97
d18dcc963930 separation of the renderers vs. viewport slice
Sebastien Jodogne <s.jodogne@gmail.com>
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141 }