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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 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #pragma once
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34
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35 #include <boost/numeric/ublas/vector.hpp>
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36
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37
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38 namespace OrthancStone
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39 {
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40 typedef boost::numeric::ublas::vector<double> Vector;
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41
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42 namespace GeometryToolbox
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43 {
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44 void Print(const Vector& v);
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45
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46 bool ParseVector(Vector& target,
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47 const std::string& value);
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48
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49 void AssignVector(Vector& v,
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50 double v1,
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51 double v2);
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52
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53 void AssignVector(Vector& v,
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54 double v1,
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55 double v2,
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56 double v3);
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57
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58 inline bool IsNear(double x,
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59 double y,
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60 double threshold)
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61 {
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62 return fabs(x - y) < threshold;
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63 }
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64
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65 bool IsNear(double x,
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66 double y);
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67
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68 inline bool IsCloseToZero(double x)
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69 {
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70 return IsNear(x, 0.0);
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71 }
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72
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73 void NormalizeVector(Vector& u);
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74
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75 void CrossProduct(Vector& result,
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76 const Vector& u,
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77 const Vector& v);
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78
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79 void ProjectPointOntoPlane(Vector& result,
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80 const Vector& point,
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81 const Vector& planeNormal,
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82 const Vector& planeOrigin);
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83
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84 bool IsParallel(const Vector& u,
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85 const Vector& v);
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86
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87 bool IsParallelOrOpposite(bool& isOpposite,
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88 const Vector& u,
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89 const Vector& v);
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90
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91 bool IntersectTwoPlanes(Vector& p,
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92 Vector& direction,
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93 const Vector& origin1,
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94 const Vector& normal1,
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95 const Vector& origin2,
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96 const Vector& normal2);
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97
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98 bool ClipLineToRectangle(double& x1, // Coordinates of the clipped line (out)
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99 double& y1,
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100 double& x2,
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101 double& y2,
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102 const double ax, // Two points defining the line (in)
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103 const double ay,
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104 const double bx,
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105 const double by,
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106 const double& xmin, // Coordinates of the rectangle (in)
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107 const double& ymin,
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108 const double& xmax,
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109 const double& ymax);
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110 };
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111 }
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