--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Resources/Graveyard/RTStructTentativeReimplementation-BGO/DicomStructureSetUtils.h	Tue Feb 01 08:38:32 2022 +0100
@@ -0,0 +1,66 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2022 Osimis S.A., Belgium
+ * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program. If not, see
+ * <http://www.gnu.org/licenses/>.
+ **/
+
+#pragma once
+
+#include <vector>
+#include <utility>
+
+#include "../Scene2D/ScenePoint2D.h"
+#include "../Toolbox/LinearAlgebra.h"
+
+namespace OrthancStone
+{
+  /** Internal */
+  struct RtStructRectangleInSlab
+  {
+    double xmin, xmax, ymin, ymax;
+  };
+  typedef std::vector<RtStructRectangleInSlab> RtStructRectanglesInSlab;
+
+  enum RectangleBoundaryKind
+  {
+    RectangleBoundaryKind_Start,
+    RectangleBoundaryKind_End
+  };
+
+#if 0
+  /** Internal */
+  void PartitionRectangleList(std::vector< std::vector<size_t> > & sets, const std::vector<RtStructRectanglesInSlab>);
+#endif
+
+  /** Internal */
+  void ConvertListOfSlabsToSegments(std::vector< std::pair<ScenePoint2D, ScenePoint2D> >& segments,
+                                    const std::vector<RtStructRectanglesInSlab>& slabCuts,
+                                    const size_t totalRectCount);
+
+  /** Internal */
+  void AddSlabBoundaries(std::vector<std::pair<double, RectangleBoundaryKind> >& boundaries,
+                         const std::vector<RtStructRectanglesInSlab>& slabCuts,
+                         size_t iSlab);
+
+  /** Internal */
+  void ProcessBoundaryList(std::vector< std::pair<ScenePoint2D, ScenePoint2D> >& segments,
+                           const std::vector<std::pair<double, RectangleBoundaryKind> >& boundaries,
+                           double y);
+
+}