Mercurial > hg > orthanc-stone
annotate Framework/Toolbox/SliceGeometry.cpp @ 40:7207a407bcd8
shared copyright with osimis
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 04 Jan 2017 16:37:42 +0100 |
| parents | 517c46f527cd |
| children | 28956ed68280 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
|
40
7207a407bcd8
shared copyright with osimis
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
32
diff
changeset
|
5 * Copyright (C) 2017 Osimis, Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU General Public License as | |
| 9 * published by the Free Software Foundation, either version 3 of the | |
| 10 * License, or (at your option) any later version. | |
| 11 * | |
| 12 * In addition, as a special exception, the copyright holders of this | |
| 13 * program give permission to link the code of its release with the | |
| 14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 15 * that use the same license as the "OpenSSL" library), and distribute | |
| 16 * the linked executables. You must obey the GNU General Public License | |
| 17 * in all respects for all of the code used other than "OpenSSL". If you | |
| 18 * modify file(s) with this exception, you may extend this exception to | |
| 19 * your version of the file(s), but you are not obligated to do so. If | |
| 20 * you do not wish to do so, delete this exception statement from your | |
| 21 * version. If you delete this exception statement from all source files | |
| 22 * in the program, then also delete it here. | |
| 23 * | |
| 24 * This program is distributed in the hope that it will be useful, but | |
| 25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 27 * General Public License for more details. | |
| 28 * | |
| 29 * You should have received a copy of the GNU General Public License | |
| 30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 31 **/ | |
| 32 | |
| 33 | |
| 34 #include "SliceGeometry.h" | |
| 35 | |
| 36 #include "GeometryToolbox.h" | |
| 37 | |
| 16 | 38 #include "../../Resources/Orthanc/Core/Logging.h" |
| 39 #include "../../Resources/Orthanc/Core/Toolbox.h" | |
| 40 #include "../../Resources/Orthanc/Core/OrthancException.h" | |
| 0 | 41 |
| 42 namespace OrthancStone | |
| 43 { | |
| 44 void SliceGeometry::CheckAndComputeNormal() | |
| 45 { | |
| 46 // DICOM expects normal vectors to define the axes: "The row and | |
| 47 // column direction cosine vectors shall be normal, i.e., the dot | |
| 48 // product of each direction cosine vector with itself shall be | |
| 49 // unity." | |
| 50 // http://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_C.7.6.2.html | |
| 51 if (!GeometryToolbox::IsNear(boost::numeric::ublas::norm_2(axisX_), 1.0) || | |
| 52 !GeometryToolbox::IsNear(boost::numeric::ublas::norm_2(axisY_), 1.0)) | |
| 53 { | |
| 54 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
| 55 } | |
| 56 | |
| 57 // The vectors within "Image Orientation Patient" must be | |
| 58 // orthogonal, according to the DICOM specification: "The row and | |
| 59 // column direction cosine vectors shall be orthogonal, i.e., | |
| 60 // their dot product shall be zero." | |
| 61 // http://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_C.7.6.2.html | |
| 62 if (!GeometryToolbox::IsCloseToZero(boost::numeric::ublas::inner_prod(axisX_, axisY_))) | |
| 63 { | |
| 64 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
| 65 } | |
| 66 | |
| 67 GeometryToolbox::CrossProduct(normal_, axisX_, axisY_); | |
| 68 | |
| 69 // Just a sanity check, it should be useless by construction | |
| 70 assert(GeometryToolbox::IsNear(boost::numeric::ublas::norm_2(normal_), 1.0)); | |
| 71 } | |
| 72 | |
| 73 | |
| 74 void SliceGeometry::SetupCanonical() | |
| 75 { | |
| 76 GeometryToolbox::AssignVector(origin_, 0, 0, 0); | |
| 77 GeometryToolbox::AssignVector(axisX_, 1, 0, 0); | |
| 78 GeometryToolbox::AssignVector(axisY_, 0, 1, 0); | |
| 79 CheckAndComputeNormal(); | |
| 80 } | |
| 81 | |
| 82 | |
| 83 SliceGeometry::SliceGeometry(const Vector& origin, | |
| 84 const Vector& axisX, | |
| 85 const Vector& axisY) : | |
| 86 origin_(origin), | |
| 87 axisX_(axisX), | |
| 88 axisY_(axisY) | |
| 89 { | |
| 90 CheckAndComputeNormal(); | |
| 91 } | |
| 92 | |
| 93 | |
| 94 void SliceGeometry::Setup(const std::string& imagePositionPatient, | |
| 95 const std::string& imageOrientationPatient) | |
| 96 { | |
| 97 std::string tmpPosition = Orthanc::Toolbox::StripSpaces(imagePositionPatient); | |
| 98 std::string tmpOrientation = Orthanc::Toolbox::StripSpaces(imageOrientationPatient); | |
| 99 | |
| 100 Vector orientation; | |
| 101 if (!GeometryToolbox::ParseVector(origin_, tmpPosition) || | |
| 102 !GeometryToolbox::ParseVector(orientation, tmpOrientation) || | |
| 103 origin_.size() != 3 || | |
| 104 orientation.size() != 6) | |
| 105 { | |
| 106 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
| 107 } | |
| 108 | |
| 109 axisX_.resize(3); | |
| 110 axisX_[0] = orientation[0]; | |
| 111 axisX_[1] = orientation[1]; | |
| 112 axisX_[2] = orientation[2]; | |
| 113 | |
| 114 axisY_.resize(3); | |
| 115 axisY_[0] = orientation[3]; | |
| 116 axisY_[1] = orientation[4]; | |
| 117 axisY_[2] = orientation[5]; | |
| 118 | |
| 119 CheckAndComputeNormal(); | |
| 120 } | |
| 121 | |
| 122 | |
| 32 | 123 SliceGeometry::SliceGeometry(const OrthancPlugins::IDicomDataset& dicom) |
| 0 | 124 { |
| 32 | 125 std::string a, b; |
| 126 | |
| 127 if (dicom.GetStringValue(a, OrthancPlugins::DICOM_TAG_IMAGE_POSITION_PATIENT) && | |
| 128 dicom.GetStringValue(b, OrthancPlugins::DICOM_TAG_IMAGE_ORIENTATION_PATIENT)) | |
| 0 | 129 { |
| 32 | 130 Setup(a, b); |
| 0 | 131 } |
| 132 else | |
| 133 { | |
| 134 SetupCanonical(); | |
| 135 } | |
| 136 } | |
| 137 | |
| 138 | |
| 139 Vector SliceGeometry::MapSliceToWorldCoordinates(double x, | |
| 140 double y) const | |
| 141 { | |
| 142 return origin_ + x * axisX_ + y * axisY_; | |
| 143 } | |
| 144 | |
| 145 | |
| 146 double SliceGeometry::ProjectAlongNormal(const Vector& point) const | |
| 147 { | |
| 148 return boost::numeric::ublas::inner_prod(point, normal_); | |
| 149 } | |
| 150 | |
| 151 | |
| 152 void SliceGeometry::ProjectPoint(double& offsetX, | |
| 153 double& offsetY, | |
| 154 const Vector& point) const | |
| 155 { | |
| 156 // Project the point onto the slice | |
| 157 Vector projection; | |
| 158 GeometryToolbox::ProjectPointOntoPlane(projection, point, normal_, origin_); | |
| 159 | |
| 160 // As the axes are orthonormal vectors thanks to | |
| 161 // CheckAndComputeNormal(), the following dot products give the | |
| 162 // offset of the origin of the slice wrt. the origin of the | |
| 163 // reference plane https://en.wikipedia.org/wiki/Vector_projection | |
| 164 offsetX = boost::numeric::ublas::inner_prod(axisX_, projection - origin_); | |
| 165 offsetY = boost::numeric::ublas::inner_prod(axisY_, projection - origin_); | |
| 166 } | |
| 167 } |