Mercurial > hg > orthanc-stone
diff Framework/Volumes/DicomStructureSetSlicer2.cpp @ 998:38b6bb0bdd72
added a new set of classes that correctly handle non-convex polygons (not
used yet because of limitations in coordinates computing): DicomStructure2,
DicomStructureSet2, DicomStructurePolygon2, DicomStructureSetSlicer2. Too
many shortcuts have been taken when computing the actual position.
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Fri, 20 Sep 2019 11:58:00 +0200 |
parents | |
children | 29f5f2031310 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Framework/Volumes/DicomStructureSetSlicer2.cpp Fri Sep 20 11:58:00 2019 +0200 @@ -0,0 +1,109 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2019 Osimis S.A., Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Affero General Public License + * as published by the Free Software Foundation, either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + +#include "DicomStructureSetSlicer2.h" + +#include "../Toolbox/GeometryToolbox.h" +#include "../Volumes/IVolumeSlicer.h" +#include "../Scene2D/PolylineSceneLayer.h" + +namespace OrthancStone +{ + DicomStructureSetSlicer2::DicomStructureSetSlicer2(boost::shared_ptr<DicomStructureSet2> structureSet) + : structureSet_(structureSet) + {} + + IVolumeSlicer::IExtractedSlice* DicomStructureSetSlicer2::ExtractSlice(const CoordinateSystem3D& cuttingPlane) + { + // revision is always the same, hence 0 + return new DicomStructureSetSlice2(structureSet_, 0, cuttingPlane); + } + + DicomStructureSetSlice2::DicomStructureSetSlice2( + boost::weak_ptr<DicomStructureSet2> structureSet, + uint64_t revision, + const CoordinateSystem3D& cuttingPlane) + : structureSet_(structureSet.lock()) + , isValid_(false) + { + bool opposite = false; + + if (structureSet_->GetStructuresCount() == 0) + { + isValid_ = false; + } + else + { + // some structures seen in real life have no polygons. We must be + // careful + bool found = false; + size_t curStructure = 0; + while (!found && curStructure < structureSet_->GetStructuresCount()) + { + if (structureSet_->GetStructure(curStructure).IsValid()) + { + found = true; + const Vector normal = structureSet_->GetStructure(0).GetNormal(); + isValid_ = ( + GeometryToolbox::IsParallelOrOpposite(opposite, normal, cuttingPlane.GetNormal()) || + GeometryToolbox::IsParallelOrOpposite(opposite, normal, cuttingPlane.GetAxisX()) || + GeometryToolbox::IsParallelOrOpposite(opposite, normal, cuttingPlane.GetAxisY())); + } + } + } + } + + ISceneLayer* DicomStructureSetSlice2::CreateSceneLayer( + const ILayerStyleConfigurator* configurator, + const CoordinateSystem3D& cuttingPlane) + { + assert(isValid_); + + std::auto_ptr<PolylineSceneLayer> layer(new PolylineSceneLayer); + layer->SetThickness(2); // thickness of the on-screen line + + for (size_t i = 0; i < structureSet_->GetStructuresCount(); i++) + { + const DicomStructure2& structure = structureSet_->GetStructure(i); + if (structure.IsValid()) + { + const Color& color = structure.GetColor(); + + std::vector< std::pair<Point2D, Point2D> > segments; + + if (structure.Project(segments, cuttingPlane)) + { + for (size_t j = 0; j < segments.size(); j++) + { + PolylineSceneLayer::Chain chain; + chain.resize(2); + + chain[0] = ScenePoint2D(segments[j].first.x, segments[j].first.y); + chain[1] = ScenePoint2D(segments[j].second.x, segments[j].second.y); + + layer->AddChain(chain, false /* NOT closed */, color); + } + } + } + } + return layer.release(); + } +} +