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annotate OrthancStone/Sources/Toolbox/Internals/OrientedIntegerLine2D.h @ 2084:7f70abd4044f

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 11 Oct 2023 21:43:26 +0200
parents 07964689cb0b
children c23eef785569
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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) 2021-2023 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 #pragma once
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25
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26 #include <stddef.h> // For size_t
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27 #include <vector>
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28 #include <list>
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29
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30
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31 namespace OrthancStone
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32 {
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33 namespace Internals
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34 {
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35 /**
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36 * This is an oriented 2D line with unsigned integer coordinates.
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37 **/
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38 class OrientedIntegerLine2D
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39 {
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40 private:
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41 size_t x1_;
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42 size_t y1_;
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43 size_t x2_;
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44 size_t y2_;
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45
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46 public:
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47 OrientedIntegerLine2D(size_t x1,
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48 size_t y1,
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49 size_t x2,
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50 size_t y2);
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51
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52 bool IsVertical() const
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53 {
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54 return (x1_ == x2_);
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55 }
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56
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57 bool IsHorizontal() const
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58 {
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59 return (y1_ == y2_);
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60 }
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61
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62 bool IsEmpty() const
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63 {
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64 return (x1_ == x2_ &&
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65 y1_ == y2_);
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66 }
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67
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68 size_t GetX1() const
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69 {
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70 return x1_;
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71 }
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72
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73 size_t GetY1() const
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74 {
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75 return y1_;
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76 }
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77
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78 size_t GetX2() const
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79 {
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80 return x2_;
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81 }
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82
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83 size_t GetY2() const
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84 {
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85 return y2_;
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86 }
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87
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88 bool IsDownward() const
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89 {
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90 return (y1_ < y2_);
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91 }
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92
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93 typedef std::list< std::pair<size_t, size_t> > Chain;
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94
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95 static void ExtractChains(std::list<Chain>& chains,
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96 const std::vector<OrientedIntegerLine2D>& edges);
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97 };
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98 }
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99 }