Mercurial > hg > orthanc-stone
annotate Framework/Toolbox/OrientedBoundingBox.cpp @ 590:5430bcffba57
FloatTextureSceneLayer
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 26 Apr 2019 11:33:57 +0200 |
| parents | b70e9be013e4 |
| children | 7719eb852dd5 |
| rev | line source |
|---|---|
| 140 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 439 | 5 * Copyright (C) 2017-2019 Osimis S.A., Belgium |
| 140 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "OrientedBoundingBox.h" | |
| 23 | |
|
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24 #include "GeometryToolbox.h" |
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25 |
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26 #include <Core/OrthancException.h> |
| 140 | 27 |
| 28 #include <cassert> | |
| 29 | |
| 30 namespace OrthancStone | |
| 31 { | |
| 32 OrientedBoundingBox::OrientedBoundingBox(const ImageBuffer3D& image) | |
| 33 { | |
| 34 unsigned int n = image.GetDepth(); | |
| 35 if (n < 1) | |
| 36 { | |
| 37 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
| 38 } | |
| 39 | |
| 40 const CoordinateSystem3D& geometry = image.GetAxialGeometry(); | |
| 41 Vector dim = image.GetVoxelDimensions(VolumeProjection_Axial); | |
| 42 | |
| 43 u_ = geometry.GetAxisX(); | |
| 44 v_ = geometry.GetAxisY(); | |
| 45 w_ = geometry.GetNormal(); | |
| 46 | |
| 47 hu_ = static_cast<double>(image.GetWidth() * dim[0] / 2.0); | |
| 48 hv_ = static_cast<double>(image.GetHeight() * dim[1] / 2.0); | |
| 49 hw_ = static_cast<double>(image.GetDepth() * dim[2] / 2.0); | |
| 50 | |
| 51 c_ = (geometry.GetOrigin() + | |
| 52 (hu_ - dim[0] / 2.0) * u_ + | |
| 53 (hv_ - dim[1] / 2.0) * v_ + | |
| 54 (hw_ - dim[2] / 2.0) * w_); | |
| 55 } | |
| 56 | |
| 57 | |
| 58 bool OrientedBoundingBox::HasIntersectionWithPlane(std::vector<Vector>& points, | |
| 59 const Vector& normal, | |
| 60 double d) const | |
| 61 { | |
| 62 assert(normal.size() == 3); | |
| 63 | |
| 64 double r = (hu_ * fabs(boost::numeric::ublas::inner_prod(normal, u_)) + | |
| 65 hv_ * fabs(boost::numeric::ublas::inner_prod(normal, v_)) + | |
| 66 hw_ * fabs(boost::numeric::ublas::inner_prod(normal, w_))); | |
| 67 | |
| 68 double s = boost::numeric::ublas::inner_prod(normal, c_) + d; | |
| 69 | |
| 70 if (fabs(s) >= r) | |
| 71 { | |
| 72 // No intersection, or intersection is reduced to a single point | |
| 73 return false; | |
| 74 } | |
| 75 else | |
| 76 { | |
| 77 Vector p; | |
| 78 | |
| 79 // Loop over all the 12 edges (segments) of the oriented | |
| 80 // bounding box, and check whether they intersect the plane | |
| 81 | |
| 82 // X-aligned edges | |
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83 if (GeometryToolbox::IntersectPlaneAndSegment |
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84 (p, normal, d, |
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85 c_ - u_ * hu_ - v_ * hv_ - w_ * hw_, |
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86 c_ + u_ * hu_ - v_ * hv_ - w_ * hw_)) |
| 140 | 87 { |
| 88 points.push_back(p); | |
| 89 } | |
| 90 | |
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91 if (GeometryToolbox::IntersectPlaneAndSegment |
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92 (p, normal, d, |
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93 c_ - u_ * hu_ + v_ * hv_ - w_ * hw_, |
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94 c_ + u_ * hu_ + v_ * hv_ - w_ * hw_)) |
| 140 | 95 { |
| 96 points.push_back(p); | |
| 97 } | |
| 98 | |
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99 if (GeometryToolbox::IntersectPlaneAndSegment |
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100 (p, normal, d, |
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101 c_ - u_ * hu_ - v_ * hv_ + w_ * hw_, |
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102 c_ + u_ * hu_ - v_ * hv_ + w_ * hw_)) |
| 140 | 103 { |
| 104 points.push_back(p); | |
| 105 } | |
| 106 | |
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107 if (GeometryToolbox::IntersectPlaneAndSegment |
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108 (p, normal, d, |
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109 c_ - u_ * hu_ + v_ * hv_ + w_ * hw_, |
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110 c_ + u_ * hu_ + v_ * hv_ + w_ * hw_)) |
| 140 | 111 { |
| 112 points.push_back(p); | |
| 113 } | |
| 114 | |
| 115 // Y-aligned edges | |
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116 if (GeometryToolbox::IntersectPlaneAndSegment |
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117 (p, normal, d, |
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118 c_ - u_ * hu_ - v_ * hv_ - w_ * hw_, |
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119 c_ - u_ * hu_ + v_ * hv_ - w_ * hw_)) |
| 140 | 120 { |
| 121 points.push_back(p); | |
| 122 } | |
| 123 | |
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124 if (GeometryToolbox::IntersectPlaneAndSegment |
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125 (p, normal, d, |
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126 c_ + u_ * hu_ - v_ * hv_ - w_ * hw_, |
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127 c_ + u_ * hu_ + v_ * hv_ - w_ * hw_)) |
| 140 | 128 { |
| 129 points.push_back(p); | |
| 130 } | |
| 131 | |
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132 if (GeometryToolbox::IntersectPlaneAndSegment |
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133 (p, normal, d, |
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134 c_ - u_ * hu_ - v_ * hv_ + w_ * hw_, |
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135 c_ - u_ * hu_ + v_ * hv_ + w_ * hw_)) |
| 140 | 136 { |
| 137 points.push_back(p); | |
| 138 } | |
| 139 | |
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140 if (GeometryToolbox::IntersectPlaneAndSegment |
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141 (p, normal, d, |
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142 c_ + u_ * hu_ - v_ * hv_ + w_ * hw_, |
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143 c_ + u_ * hu_ + v_ * hv_ + w_ * hw_)) |
| 140 | 144 { |
| 145 points.push_back(p); | |
| 146 } | |
| 147 | |
| 148 // Z-aligned edges | |
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149 if (GeometryToolbox::IntersectPlaneAndSegment |
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150 (p, normal, d, |
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151 c_ - u_ * hu_ - v_ * hv_ - w_ * hw_, |
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152 c_ - u_ * hu_ - v_ * hv_ + w_ * hw_)) |
| 140 | 153 { |
| 154 points.push_back(p); | |
| 155 } | |
| 156 | |
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157 if (GeometryToolbox::IntersectPlaneAndSegment |
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158 (p, normal, d, |
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159 c_ + u_ * hu_ - v_ * hv_ - w_ * hw_, |
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160 c_ + u_ * hu_ - v_ * hv_ + w_ * hw_)) |
| 140 | 161 { |
| 162 points.push_back(p); | |
| 163 } | |
| 164 | |
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165 if (GeometryToolbox::IntersectPlaneAndSegment |
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166 (p, normal, d, |
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167 c_ - u_ * hu_ + v_ * hv_ - w_ * hw_, |
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168 c_ - u_ * hu_ + v_ * hv_ + w_ * hw_)) |
| 140 | 169 { |
| 170 points.push_back(p); | |
| 171 } | |
| 172 | |
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173 if (GeometryToolbox::IntersectPlaneAndSegment |
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174 (p, normal, d, |
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175 c_ + u_ * hu_ + v_ * hv_ - w_ * hw_, |
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176 c_ + u_ * hu_ + v_ * hv_ + w_ * hw_)) |
| 140 | 177 { |
| 178 points.push_back(p); | |
| 179 } | |
| 180 | |
| 181 return true; | |
| 182 } | |
| 183 } | |
| 184 | |
| 185 | |
| 186 bool OrientedBoundingBox::HasIntersection(std::vector<Vector>& points, | |
| 187 const CoordinateSystem3D& plane) const | |
| 188 { | |
| 189 // From the vector equation of a 3D plane (specified by origin | |
| 190 // and normal), to the general equation of a 3D plane (which | |
| 191 // looses information about the origin of the coordinate system) | |
| 192 const Vector& normal = plane.GetNormal(); | |
| 193 const Vector& origin = plane.GetOrigin(); | |
| 194 double d = -(normal[0] * origin[0] + normal[1] * origin[1] + normal[2] * origin[2]); | |
| 195 | |
| 196 return HasIntersectionWithPlane(points, normal, d); | |
| 197 } | |
| 198 | |
| 199 | |
| 200 bool OrientedBoundingBox::Contains(const Vector& p) const | |
| 201 { | |
| 202 assert(p.size() == 3); | |
| 203 | |
| 204 const Vector q = p - c_; | |
| 205 | |
| 206 return (fabs(boost::numeric::ublas::inner_prod(q, u_)) <= hu_ && | |
| 207 fabs(boost::numeric::ublas::inner_prod(q, v_)) <= hv_ && | |
| 208 fabs(boost::numeric::ublas::inner_prod(q, w_)) <= hw_); | |
| 209 } | |
| 210 | |
| 211 | |
| 212 void OrientedBoundingBox::FromInternalCoordinates(Vector& target, | |
| 213 double x, | |
| 214 double y, | |
| 215 double z) const | |
| 216 { | |
| 217 target = (c_ + | |
| 218 u_ * 2.0 * hu_ * (x - 0.5) + | |
| 219 v_ * 2.0 * hv_ * (y - 0.5) + | |
| 220 w_ * 2.0 * hw_ * (z - 0.5)); | |
| 221 } | |
| 222 | |
| 223 | |
| 224 void OrientedBoundingBox::FromInternalCoordinates(Vector& target, | |
| 225 const Vector& source) const | |
| 226 { | |
| 227 assert(source.size() == 3); | |
| 228 FromInternalCoordinates(target, source[0], source[1], source[2]); | |
| 229 } | |
| 230 | |
| 231 | |
| 232 void OrientedBoundingBox::ToInternalCoordinates(Vector& target, | |
| 233 const Vector& source) const | |
| 234 { | |
| 235 assert(source.size() == 3); | |
| 236 const Vector q = source - c_; | |
| 237 | |
| 238 double x = boost::numeric::ublas::inner_prod(q, u_) / (2.0 * hu_) + 0.5; | |
| 239 double y = boost::numeric::ublas::inner_prod(q, v_) / (2.0 * hv_) + 0.5; | |
| 240 double z = boost::numeric::ublas::inner_prod(q, w_) / (2.0 * hw_) + 0.5; | |
| 241 | |
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242 LinearAlgebra::AssignVector(target, x, y, z); |
| 140 | 243 } |
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244 |
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245 |
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246 bool OrientedBoundingBox::ComputeExtent(Extent2D& extent, |
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247 const CoordinateSystem3D& plane) const |
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248 { |
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249 extent.Reset(); |
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250 |
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251 std::vector<Vector> points; |
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252 if (HasIntersection(points, plane)) |
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253 { |
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254 for (size_t i = 0; i < points.size(); i++) |
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255 { |
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256 double x, y; |
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257 plane.ProjectPoint(x, y, points[i]); |
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258 extent.AddPoint(x, y); |
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259 } |
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260 |
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diff
changeset
|
261 return true; |
|
fb7d602e7025
OrientedBoundingBox::ComputeExtent
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
140
diff
changeset
|
262 } |
|
fb7d602e7025
OrientedBoundingBox::ComputeExtent
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
140
diff
changeset
|
263 else |
|
fb7d602e7025
OrientedBoundingBox::ComputeExtent
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
140
diff
changeset
|
264 { |
|
fb7d602e7025
OrientedBoundingBox::ComputeExtent
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
140
diff
changeset
|
265 return false; |
|
fb7d602e7025
OrientedBoundingBox::ComputeExtent
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
140
diff
changeset
|
266 } |
|
fb7d602e7025
OrientedBoundingBox::ComputeExtent
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
140
diff
changeset
|
267 } |
| 140 | 268 } |