changeset 1679:5b8b88e5bfd6

successfully running unit tests in WebAssembly
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 24 Nov 2020 12:59:10 +0100
parents 1393e3393a0b
children 03afa09cfcf1
files Applications/StoneWebViewer/WebAssembly/StoneWebViewer.cpp OrthancStone/Sources/Loaders/SeriesFramesLoader.cpp OrthancStone/Sources/Loaders/SeriesFramesLoader.h OrthancStone/Sources/Toolbox/DicomInstanceParameters.cpp OrthancStone/Sources/Toolbox/DicomInstanceParameters.h OrthancStone/Sources/Toolbox/GenericToolbox.h UnitTestsSources/CMakeLists.txt UnitTestsSources/DicomTests.cpp UnitTestsSources/GenericToolboxTests.cpp UnitTestsSources/GeometryToolboxTests.cpp UnitTestsSources/TestStructureSet.cpp UnitTestsSources/UnitTestsMain.cpp UnitTestsSources/UnitTestsSources.cmake UnitTestsSources/WebAssembly/CMakeLists.txt UnitTestsSources/WebAssembly/NOTES.txt UnitTestsSources/WebAssembly/index.html
diffstat 16 files changed, 1426 insertions(+), 1062 deletions(-) [+]
line wrap: on
line diff
--- a/Applications/StoneWebViewer/WebAssembly/StoneWebViewer.cpp	Tue Nov 24 07:40:19 2020 +0100
+++ b/Applications/StoneWebViewer/WebAssembly/StoneWebViewer.cpp	Tue Nov 24 12:59:10 2020 +0100
@@ -1102,21 +1102,26 @@
       {
         OrthancStone::DicomInstanceParameters params(dicom);
 
-        // TODO - WINDOWING
-        if (params.GetPresetWindowingsCount() > 0)
+        for (size_t i = 0; i < params.GetWindowingPresetsCount(); i++)
         {
-          GetViewport().presetWindowingCenter_ = params.GetPresetWindowingCenter(0);
-          GetViewport().presetWindowingWidth_ = params.GetPresetWindowingWidth(0);
-          LOG(INFO) << "Preset windowing: " << params.GetPresetWindowingCenter(0)
-                    << "," << params.GetPresetWindowingWidth(0);
-
-          GetViewport().windowingCenter_ = params.GetPresetWindowingCenter(0);
-          GetViewport().windowingWidth_ = params.GetPresetWindowingWidth(0);
+          LOG(INFO) << "Preset windowing " << i << "/" << params.GetWindowingPresetsCount()
+                    << ": " << params.GetWindowingPresetCenter(i)
+                    << "," << params.GetWindowingPresetWidth(i);
+        }
+
+        // TODO - WINDOWING
+        if (params.GetWindowingPresetsCount() > 0)
+        {
+          GetViewport().presetWindowingCenter_ = params.GetWindowingPresetCenter(0);
+          GetViewport().presetWindowingWidth_ = params.GetWindowingPresetWidth(0);
+
+          GetViewport().windowingCenter_ = params.GetWindowingPresetCenter(0);
+          GetViewport().windowingWidth_ = params.GetWindowingPresetWidth(0);
         }
         else
         {
           LOG(INFO) << "No preset windowing";
-          GetViewport().ResetPresetWindowing();
+          GetViewport().ResetWindowingPreset();
         }
       }
 
@@ -1411,7 +1416,7 @@
   }
   
   
-  void ResetPresetWindowing()
+  void ResetWindowingPreset()
   {
     presetWindowingCenter_ = 128;
     presetWindowingWidth_ = 256;
@@ -1790,7 +1795,7 @@
     emscripten_set_keydown_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, this, false, OnKey);
     emscripten_set_keyup_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, this, false, OnKey);
 
-    ResetPresetWindowing();
+    ResetWindowingPreset();
   }
 
   static EM_BOOL OnKey(int eventType,
@@ -1898,7 +1903,7 @@
 
     LOG(INFO) << "Number of frames in series: " << frames_->GetFramesCount();
 
-    ResetPresetWindowing();
+    ResetWindowingPreset();
     ClearViewport();
     prefetchQueue_.clear();
 
@@ -2127,7 +2132,7 @@
   }
 
 
-  void SetPresetWindowing()
+  void SetWindowingPreset()
   {
     SetWindowing(presetWindowingCenter_, presetWindowingWidth_);
   }
@@ -2328,6 +2333,11 @@
   {
     return cineRate_;
   }
+
+  void FormatWindowingPresets(Json::Value& target) const
+  {
+    target = Json::arrayValue;
+  }
 };
 
 
@@ -2818,11 +2828,11 @@
 
 
   EMSCRIPTEN_KEEPALIVE
-  void SetPresetWindowing(const char* canvas)
+  void SetWindowingPreset(const char* canvas)
   {
     try
     {
-      GetViewport(canvas)->SetPresetWindowing();
+      GetViewport(canvas)->SetWindowingPreset();
     }
     EXTERN_CATCH_EXCEPTIONS;
   }  
@@ -3017,5 +3027,18 @@
     }
     EXTERN_CATCH_EXCEPTIONS;
     return 0;
-  }    
+  }
+
+
+  EMSCRIPTEN_KEEPALIVE
+  void LoadWindowingPresets(const char* canvas)
+  {
+    try
+    {
+      Json::Value v;
+      GetViewport(canvas)->FormatWindowingPresets(v);
+      stringBuffer_ = v.toStyledString();
+    }
+    EXTERN_CATCH_EXCEPTIONS;
+  }
 }
--- a/OrthancStone/Sources/Loaders/SeriesFramesLoader.cpp	Tue Nov 24 07:40:19 2020 +0100
+++ b/OrthancStone/Sources/Loaders/SeriesFramesLoader.cpp	Tue Nov 24 12:59:10 2020 +0100
@@ -307,77 +307,6 @@
   }
 
 
-  static void GetBounds(float& low,
-                        float& high,
-                        double center,  // in
-                        double width)   // in
-  {
-    low = static_cast<float>(center - width / 2.0);
-    high = static_cast<float>(center + width / 2.0);
-  }
-  
-  
-  void SeriesFramesLoader::GetPreviewWindowing(float& center,
-                                               float& width,
-                                               size_t index) const
-  {
-    const Orthanc::DicomMap& instance = frames_.GetInstance(index);
-    const DicomInstanceParameters& parameters = frames_.GetInstanceParameters(index);
-
-    size_t s = parameters.GetPresetWindowingsCount();
-
-    if (s > 0)
-    {
-      // Use the largest windowing given all the preset windowings
-      // that are available in the DICOM tags
-      float low, high;
-      GetBounds(low, high, parameters.GetPresetWindowingCenter(0),
-                parameters.GetPresetWindowingWidth(0));
-
-      for (size_t i = 1; i < s; i++)
-      {
-        float a, b;
-        GetBounds(a, b, parameters.GetPresetWindowingCenter(i),
-                  parameters.GetPresetWindowingWidth(i));
-        low = std::min(low, a);
-        high = std::max(high, b);
-      }
-
-      assert(low <= high);
-
-      if (LinearAlgebra::IsNear(low, high))
-      {
-        // Cannot infer a suitable windowing from the available tags
-        center = 128.0f;
-        width = 256.0f;
-      }
-      else
-      {
-        center = (low + high) / 2.0f;
-        width = (high - low);
-        printf(">> %f %f\n", center, width);
-      }
-    }
-    else
-    {
-      float a, b;
-      if (instance.ParseFloat(a, Orthanc::DICOM_TAG_SMALLEST_IMAGE_PIXEL_VALUE) &&
-          instance.ParseFloat(b, Orthanc::DICOM_TAG_LARGEST_IMAGE_PIXEL_VALUE) &&
-          a < b)
-      {
-        center = (a + b) / 2.0f;
-        width = (b - a);
-      }
-      else
-      {
-        // Cannot infer a suitable windowing from the available tags
-        center = 128.0f;
-        width = 256.0f;
-      }
-    }
-  }
-
-  
   Orthanc::IDynamicObject& SeriesFramesLoader::FrameLoadedMessage::GetUserPayload() const
   {
     if (userPayload_)
@@ -485,8 +414,10 @@
       if (source.HasDicomWebRendered() &&
           quality == 0)
       {
+        const DicomInstanceParameters& parameters = frames_.GetInstanceParameters(index);
+
         float c, w;
-        GetPreviewWindowing(c, w, index);
+        parameters.GetWindowingPresetsUnion(c, w);
 
         std::map<std::string, std::string> arguments, headers;
         arguments["window"] = (boost::lexical_cast<std::string>(c) + "," +
--- a/OrthancStone/Sources/Loaders/SeriesFramesLoader.h	Tue Nov 24 07:40:19 2020 +0100
+++ b/OrthancStone/Sources/Loaders/SeriesFramesLoader.h	Tue Nov 24 12:59:10 2020 +0100
@@ -76,10 +76,6 @@
 
     void Handle(const HttpCommand::SuccessMessage& message);
 
-    void GetPreviewWindowing(float& center,
-                             float& width,
-                             size_t index) const;
-
   public:
     class FrameLoadedMessage : public OriginMessage<SeriesFramesLoader>
     {
--- a/OrthancStone/Sources/Toolbox/DicomInstanceParameters.cpp	Tue Nov 24 07:40:19 2020 +0100
+++ b/OrthancStone/Sources/Toolbox/DicomInstanceParameters.cpp	Tue Nov 24 12:59:10 2020 +0100
@@ -182,10 +182,10 @@
 
     bool ok = false;
     
-    if (LinearAlgebra::ParseVector(presetWindowingCenters_, dicom, Orthanc::DICOM_TAG_WINDOW_CENTER) &&
-        LinearAlgebra::ParseVector(presetWindowingWidths_, dicom, Orthanc::DICOM_TAG_WINDOW_WIDTH))
+    if (LinearAlgebra::ParseVector(windowingPresetCenters_, dicom, Orthanc::DICOM_TAG_WINDOW_CENTER) &&
+        LinearAlgebra::ParseVector(windowingPresetWidths_, dicom, Orthanc::DICOM_TAG_WINDOW_WIDTH))
     {
-      if (presetWindowingCenters_.size() == presetWindowingWidths_.size())
+      if (windowingPresetCenters_.size() == windowingPresetWidths_.size())
       {
         ok = true;
       }
@@ -199,8 +199,8 @@
     if (!ok)
     {
       // Don't use "Vector::clear()", as it has not the same meaning as "std::vector::clear()"
-      presetWindowingCenters_.resize(0);
-      presetWindowingWidths_.resize(0);
+      windowingPresetCenters_.resize(0);
+      windowingPresetWidths_.resize(0);
     }      
 
     // This computes the "IndexInSeries" metadata from Orthanc (check
@@ -397,18 +397,31 @@
   }
 
 
-  size_t DicomInstanceParameters::GetPresetWindowingsCount() const
+  size_t DicomInstanceParameters::GetWindowingPresetsCount() const
   {
-    assert(data_.presetWindowingCenters_.size() == data_.presetWindowingWidths_.size());
-    return data_.presetWindowingCenters_.size();
+    assert(data_.windowingPresetCenters_.size() == data_.windowingPresetWidths_.size());
+    return data_.windowingPresetCenters_.size();
   }
   
 
-  float DicomInstanceParameters::GetPresetWindowingCenter(size_t i) const
+  float DicomInstanceParameters::GetWindowingPresetCenter(size_t i) const
   {
-    if (i < GetPresetWindowingsCount())
+    if (i < GetWindowingPresetsCount())
+    {
+      return static_cast<float>(data_.windowingPresetCenters_[i]);
+    }
+    else
     {
-      return static_cast<float>(data_.presetWindowingCenters_[i]);
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
+    }
+  }
+
+
+  float DicomInstanceParameters::GetWindowingPresetWidth(size_t i) const
+  {
+    if (i < GetWindowingPresetsCount())
+    {
+      return static_cast<float>(data_.windowingPresetWidths_[i]);
     }
     else
     {
@@ -417,19 +430,71 @@
   }
 
 
-  float DicomInstanceParameters::GetPresetWindowingWidth(size_t i) const
+  static void GetWindowingBounds(float& low,
+                                 float& high,
+                                 double center,  // in
+                                 double width)   // in
+  {
+    low = static_cast<float>(center - width / 2.0);
+    high = static_cast<float>(center + width / 2.0);
+  }
+
+  
+  void DicomInstanceParameters::GetWindowingPresetsUnion(float& center,
+                                                         float& width) const
   {
-    if (i < GetPresetWindowingsCount())
+    assert(tags_.get() != NULL);
+    size_t s = GetWindowingPresetsCount();
+
+    if (s > 0)
     {
-      return static_cast<float>(data_.presetWindowingWidths_[i]);
+      // Use the largest windowing given all the preset windowings
+      // that are available in the DICOM tags
+      float low, high;
+      GetWindowingBounds(low, high, GetWindowingPresetCenter(0), GetWindowingPresetWidth(0));
+
+      for (size_t i = 1; i < s; i++)
+      {
+        float a, b;
+        GetWindowingBounds(a, b, GetWindowingPresetCenter(i), GetWindowingPresetWidth(i));
+        low = std::min(low, a);
+        high = std::max(high, b);
+      }
+
+      assert(low <= high);
+
+      if (LinearAlgebra::IsNear(low, high))
+      {
+        // Cannot infer a suitable windowing from the available tags
+        center = 128.0f;
+        width = 256.0f;
+      }
+      else
+      {
+        center = (low + high) / 2.0f;
+        width = (high - low);
+      }
     }
     else
     {
-      throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
+      float a, b;
+      if (tags_->ParseFloat(a, Orthanc::DICOM_TAG_SMALLEST_IMAGE_PIXEL_VALUE) &&
+          tags_->ParseFloat(b, Orthanc::DICOM_TAG_LARGEST_IMAGE_PIXEL_VALUE) &&
+          a < b)
+      {
+        center = (a + b) / 2.0f;
+        width = (b - a);
+      }
+      else
+      {
+        // Cannot infer a suitable windowing from the available tags
+        center = 128.0f;
+        width = 256.0f;
+      }
     }
   }
 
-  
+
   Orthanc::ImageAccessor* DicomInstanceParameters::ConvertToFloat(const Orthanc::ImageAccessor& pixelData) const
   {
     std::unique_ptr<Orthanc::Image> converted(new Orthanc::Image(Orthanc::PixelFormat_Float32, 
@@ -494,9 +559,9 @@
         texture.reset(new FloatTextureSceneLayer(*converted));
       }
 
-      if (GetPresetWindowingsCount() > 0)
+      if (GetWindowingPresetsCount() > 0)
       {
-        texture->SetCustomWindowing(GetPresetWindowingCenter(0), GetPresetWindowingWidth(0));
+        texture->SetCustomWindowing(GetWindowingPresetCenter(0), GetWindowingPresetWidth(0));
       }
       
       switch (GetImageInformation().GetPhotometricInterpretation())
--- a/OrthancStone/Sources/Toolbox/DicomInstanceParameters.h	Tue Nov 24 07:40:19 2020 +0100
+++ b/OrthancStone/Sources/Toolbox/DicomInstanceParameters.h	Tue Nov 24 12:59:10 2020 +0100
@@ -55,8 +55,8 @@
       bool                hasRescale_;
       double              rescaleIntercept_;
       double              rescaleSlope_;
-      Vector              presetWindowingCenters_;
-      Vector              presetWindowingWidths_;
+      Vector              windowingPresetCenters_;
+      Vector              windowingPresetWidths_;
       bool                hasIndexInSeries_;
       unsigned int        indexInSeries_;
       std::string         doseUnits_;
@@ -181,11 +181,14 @@
 
     double GetRescaleSlope() const;
 
-    size_t GetPresetWindowingsCount() const;
+    size_t GetWindowingPresetsCount() const;
+
+    float GetWindowingPresetCenter(size_t i) const;
 
-    float GetPresetWindowingCenter(size_t i) const;
+    float GetWindowingPresetWidth(size_t i) const;
 
-    float GetPresetWindowingWidth(size_t i) const;
+    void GetWindowingPresetsUnion(float& center,
+                                  float& width) const;
 
     Orthanc::PixelFormat GetExpectedPixelFormat() const;
 
--- a/OrthancStone/Sources/Toolbox/GenericToolbox.h	Tue Nov 24 07:40:19 2020 +0100
+++ b/OrthancStone/Sources/Toolbox/GenericToolbox.h	Tue Nov 24 12:59:10 2020 +0100
@@ -255,7 +255,7 @@
       }
       while (*p >= '0' && *p <= '9')
       {
-        r = (r * 10) + (*p - '0'); // 1 12 123 123 12345
+        r = (r * 10) + static_cast<T>(*p - '0'); // 1 12 123 123 12345
         ++p;
       }
       r *= neg;
--- a/UnitTestsSources/CMakeLists.txt	Tue Nov 24 07:40:19 2020 +0100
+++ b/UnitTestsSources/CMakeLists.txt	Tue Nov 24 12:59:10 2020 +0100
@@ -40,24 +40,9 @@
 set(ENABLE_PUGIXML ON)
 
 include(${ORTHANC_STONE_ROOT}/../Resources/CMake/OrthancStoneConfiguration.cmake)
+include(${CMAKE_CURRENT_SOURCE_DIR}/UnitTestsSources.cmake)
 
-add_executable(UnitTests
-  ${CMAKE_SOURCE_DIR}/GenericToolboxTests.cpp
-  ${CMAKE_SOURCE_DIR}/ImageToolboxTests.cpp
-  ${CMAKE_SOURCE_DIR}/PixelTestPatternsTests.cpp
-  ${CMAKE_SOURCE_DIR}/SortedFramesTests.cpp
-  ${CMAKE_SOURCE_DIR}/TestMessageBroker.cpp
-  ${CMAKE_SOURCE_DIR}/TestStrategy.cpp
-  ${CMAKE_SOURCE_DIR}/TestStructureSet.cpp
-  ${CMAKE_SOURCE_DIR}/UnitTestsMain.cpp
-
-  ${AUTOGENERATED_SOURCES}
-  ${BOOST_EXTENDED_SOURCES}
-  ${GOOGLE_TEST_SOURCES}
-  ${ORTHANC_STONE_SOURCES}
-  )
-
-target_link_libraries(UnitTests ${DCMTK_LIBRARIES})
+add_executable(UnitTests ${UNIT_TESTS_SOURCES})
 
 
 #####################################################################
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/UnitTestsSources/DicomTests.cpp	Tue Nov 24 12:59:10 2020 +0100
@@ -0,0 +1,109 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2020 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 <gtest/gtest.h>
+
+#include "../OrthancStone/Sources/Toolbox/DicomInstanceParameters.h"
+
+#include <OrthancException.h>
+
+
+static void SetupUids(Orthanc::DicomMap& m)
+{
+  m.SetValue(Orthanc::DICOM_TAG_STUDY_INSTANCE_UID, "my_study", false);
+  m.SetValue(Orthanc::DICOM_TAG_SERIES_INSTANCE_UID, "my_series", false);
+  m.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "my_sop", false);
+}
+
+
+TEST(DicomInstanceParameters, Basic)
+{
+  Orthanc::DicomMap m;
+  SetupUids(m);
+
+  std::unique_ptr<OrthancStone::DicomInstanceParameters> p;
+  p.reset(OrthancStone::DicomInstanceParameters(m).Clone());
+
+  ASSERT_TRUE(p->GetOrthancInstanceIdentifier().empty());
+  ASSERT_EQ(3u, p->GetTags().GetSize());
+  ASSERT_EQ("my_study", p->GetStudyInstanceUid());
+  ASSERT_EQ("my_series", p->GetSeriesInstanceUid());
+  ASSERT_EQ("my_sop", p->GetSopInstanceUid());
+  ASSERT_EQ(OrthancStone::SopClassUid_Other, p->GetSopClassUid());
+  ASSERT_EQ(1u, p->GetNumberOfFrames());
+  ASSERT_EQ(0u, p->GetWidth());
+  ASSERT_EQ(0u, p->GetHeight());
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsCloseToZero(p->GetSliceThickness()));
+  ASSERT_FLOAT_EQ(1, p->GetPixelSpacingX());
+  ASSERT_FLOAT_EQ(1, p->GetPixelSpacingY());
+  ASSERT_FALSE(p->GetGeometry().IsValid());
+  ASSERT_THROW(p->GetImageInformation(), Orthanc::OrthancException);
+  ASSERT_FALSE(p->GetFrameGeometry(0).IsValid());
+  ASSERT_THROW(p->IsColor(), Orthanc::OrthancException);  // Accesses DicomImageInformation
+  ASSERT_FALSE(p->HasRescale());
+  ASSERT_THROW(p->GetRescaleIntercept(), Orthanc::OrthancException);
+  ASSERT_THROW(p->GetRescaleSlope(), Orthanc::OrthancException);
+  ASSERT_EQ(0u, p->GetWindowingPresetsCount());
+  ASSERT_THROW(p->GetWindowingPresetCenter(0), Orthanc::OrthancException);
+  ASSERT_THROW(p->GetWindowingPresetWidth(0), Orthanc::OrthancException);
+
+  float c, w;
+  p->GetWindowingPresetsUnion(c, w);
+  ASSERT_FLOAT_EQ(128.0f, c);
+  ASSERT_FLOAT_EQ(256.0f, w);
+
+  ASSERT_THROW(p->GetExpectedPixelFormat(), Orthanc::OrthancException);
+  ASSERT_FALSE(p->HasIndexInSeries());
+  ASSERT_THROW(p->GetIndexInSeries(), Orthanc::OrthancException);
+  ASSERT_TRUE(p->GetDoseUnits().empty());
+  ASSERT_DOUBLE_EQ(1.0, p->GetDoseGridScaling());
+  ASSERT_DOUBLE_EQ(1.0, p->ApplyRescale(1.0));
+
+  double s;
+  ASSERT_FALSE(p->ComputeRegularSpacing(s));
+  ASSERT_TRUE(p->GetFrameOfReferenceUid().empty());
+}
+
+
+TEST(DicomInstanceParameters, Windowing)
+{
+  Orthanc::DicomMap m;
+  SetupUids(m);
+  m.SetValue(Orthanc::DICOM_TAG_WINDOW_CENTER, "10\\100\\1000", false);
+  m.SetValue(Orthanc::DICOM_TAG_WINDOW_WIDTH, "50\\60\\70", false);
+
+  OrthancStone::DicomInstanceParameters p(m);
+  ASSERT_EQ(3u, p.GetWindowingPresetsCount());
+  ASSERT_FLOAT_EQ(10, p.GetWindowingPresetCenter(0));
+  ASSERT_FLOAT_EQ(100, p.GetWindowingPresetCenter(1));
+  ASSERT_FLOAT_EQ(1000, p.GetWindowingPresetCenter(2));
+  ASSERT_FLOAT_EQ(50, p.GetWindowingPresetWidth(0));
+  ASSERT_FLOAT_EQ(60, p.GetWindowingPresetWidth(1));
+  ASSERT_FLOAT_EQ(70, p.GetWindowingPresetWidth(2));
+
+  const float a = 10.0f - 50.0f / 2.0f;
+  const float b = 1000.0f + 70.0f / 2.0f;
+  
+  float c, w;
+  p.GetWindowingPresetsUnion(c, w);
+  ASSERT_FLOAT_EQ((a + b) / 2.0f, c);
+  ASSERT_FLOAT_EQ(b - a, w);
+}
--- a/UnitTestsSources/GenericToolboxTests.cpp	Tue Nov 24 07:40:19 2020 +0100
+++ b/UnitTestsSources/GenericToolboxTests.cpp	Tue Nov 24 12:59:10 2020 +0100
@@ -26,6 +26,7 @@
 
 #include <gtest/gtest.h>
 #include <stdint.h>
+#include <inttypes.h>  // For PRId64
 #include <cmath>
 
 TEST(GenericToolbox, TestLegitDoubleString)
@@ -115,15 +116,27 @@
   EXPECT_FALSE(LegitIntegerString("\n0."));
 }
 
-TEST(GenericToolbox, TestStringToDouble)
+
+/**
+ * The very long "TestStringToDouble" was split in 4 parts. Otherwise,
+ * while running in WebAssembly (at least in "Debug" CMAKE_BUILD_TYPE
+ * with Emscripten 2.0.0), one get error "failed to asynchronously
+ * prepare wasm: CompileError: WebAssembly.instantiate(): Compiling
+ * function [...] failed: local count too large". This is because the
+ * function is too long.
+ **/
+TEST(GenericToolbox, TestStringToDouble1)
 {
   using OrthancStone::GenericToolbox::StringToDouble;
 
   const double TOLERANCE = 0.00000000000001;
   double r = 0.0;
-  bool ok = StringToDouble(r, "0.0001");
-  EXPECT_TRUE(ok);
-  EXPECT_NEAR(0.0001, r, TOLERANCE);
+
+  {
+    bool ok = StringToDouble(r, "0.0001");
+    EXPECT_TRUE(ok);
+    EXPECT_NEAR(0.0001, r, TOLERANCE);
+  }
 
   {
     bool ok = StringToDouble(r, "0.0001");
@@ -964,6 +977,14 @@
     EXPECT_TRUE(ok);
     EXPECT_NEAR(-0.83191012798055900000, r, TOLERANCE);
   }
+}
+
+TEST(GenericToolbox, TestStringToDouble2)
+{
+  using OrthancStone::GenericToolbox::StringToDouble;
+
+  const double TOLERANCE = 0.00000000000001;
+  double r = 0.0;
 
   {
     bool ok = StringToDouble(r, "2.58090819604341000000");
@@ -1816,6 +1837,14 @@
     EXPECT_TRUE(ok);
     EXPECT_NEAR(0.89377268220461400000, r, TOLERANCE);
   }
+}
+
+TEST(GenericToolbox, TestStringToDouble3)
+{
+  using OrthancStone::GenericToolbox::StringToDouble;
+
+  const double TOLERANCE = 0.00000000000001;
+  double r = 0.0;
 
   {
     bool ok = StringToDouble(r, "1.45674815825147000000");
@@ -2782,6 +2811,14 @@
     EXPECT_TRUE(ok);
     EXPECT_NEAR(-1.49620375847259000000, r, TOLERANCE);
   }
+}
+
+TEST(GenericToolbox, TestStringToDouble4)
+{
+  using OrthancStone::GenericToolbox::StringToDouble;
+
+  const double TOLERANCE = 0.00000000000001;
+  double r = 0.0;
 
   {
     bool ok = StringToDouble(r, "-2.04336416841016000000");
@@ -4177,6 +4214,7 @@
   for (double b = DBL_EPSILON; b < DBL_MAX && i < COUNT; ++i, b *= FACTOR)
   {
     int64_t bi = static_cast<int64_t>(b);
+
     char txt[1024];
 #if defined(_MSC_VER)
 #  if (_MSC_VER > 1800)
@@ -4185,8 +4223,9 @@
     sprintf_s(txt, "%I64d", bi);
 #  endif
 #else
-    snprintf(txt, sizeof(txt) - 1, "%ld", bi);
+    snprintf(txt, sizeof(txt) - 1, "%" PRId64, bi);  // https://stackoverflow.com/a/9225648/881731
 #endif
+    
     int64_t r = 0;
     bool ok = StringToInteger<int64_t>(r, txt);
     EXPECT_TRUE(ok);
@@ -4194,11 +4233,11 @@
 #if 0
     if (ok)
     {
-      printf("OK for b = %.17f bi = %lld txt = \"%s\" and r = %lld\n", b, bi, txt, r);
+      printf("OK for b = %.17f bi = %" PRId64 " txt = \"%s\" and r = %" PRId64 "\n", b, bi, txt, r);
     }
     else
     {
-      printf("NOK for b = %.17f bi = %lld txt = \"%s\" and r = %lld\n", b, bi, txt,r);
+      printf("NOK for b = %.17f bi = %" PRId64 " txt = \"%s\" and r = %" PRId64 "\n", b, bi, txt, r);
       ok = StringToInteger<int64_t>(r, txt);
     }
 #endif
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/UnitTestsSources/GeometryToolboxTests.cpp	Tue Nov 24 12:59:10 2020 +0100
@@ -0,0 +1,933 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2020 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 <gtest/gtest.h>
+
+#include "../OrthancStone/Sources/Toolbox/FiniteProjectiveCamera.h"
+#include "../OrthancStone/Sources/Toolbox/GenericToolbox.h"
+#include "../OrthancStone/Sources/Toolbox/GeometryToolbox.h"
+
+#include <Logging.h>
+#include <OrthancException.h>
+
+#include <boost/math/special_functions/round.hpp>
+
+
+TEST(GeometryToolbox, Interpolation)
+{
+  using namespace OrthancStone::GeometryToolbox;
+  
+  // https://en.wikipedia.org/wiki/Bilinear_interpolation#Application_in_image_processing
+  ASSERT_DOUBLE_EQ(146.1f, ComputeBilinearInterpolationUnitSquare(0.5f, 0.2f, 91, 210, 162, 95));
+
+  ASSERT_DOUBLE_EQ(91,  ComputeBilinearInterpolationUnitSquare(0, 0, 91, 210, 162, 95));
+  ASSERT_DOUBLE_EQ(210, ComputeBilinearInterpolationUnitSquare(1, 0, 91, 210, 162, 95));
+  ASSERT_DOUBLE_EQ(162, ComputeBilinearInterpolationUnitSquare(0, 1, 91, 210, 162, 95));
+  ASSERT_DOUBLE_EQ(95,  ComputeBilinearInterpolationUnitSquare(1, 1, 91, 210, 162, 95));
+
+  ASSERT_DOUBLE_EQ(123.35f, ComputeTrilinearInterpolationUnitSquare
+                  (0.5f, 0.2f, 0.7f,
+                   91, 210, 162, 95,
+                   51, 190, 80, 92));
+
+  ASSERT_DOUBLE_EQ(ComputeBilinearInterpolationUnitSquare(0.5f, 0.2f, 91, 210, 162, 95),
+                  ComputeTrilinearInterpolationUnitSquare(0.5f, 0.2f, 0,
+                                                          91, 210, 162, 95,
+                                                          51, 190, 80, 92));
+
+  ASSERT_DOUBLE_EQ(ComputeBilinearInterpolationUnitSquare(0.5f, 0.2f, 51, 190, 80, 92),
+                  ComputeTrilinearInterpolationUnitSquare(0.5f, 0.2f, 1,
+                                                          91, 210, 162, 95,
+                                                          51, 190, 80, 92));
+}
+
+
+static bool CompareMatrix(const OrthancStone::Matrix& a,
+                          const OrthancStone::Matrix& b,
+                          double threshold = 0.00000001)
+{
+  if (a.size1() != b.size1() ||
+      a.size2() != b.size2())
+  {
+    return false;
+  }
+
+  for (size_t i = 0; i < a.size1(); i++)
+  {
+    for (size_t j = 0; j < a.size2(); j++)
+    {
+      if (fabs(a(i, j) - b(i, j)) > threshold)
+      {
+        LOG(ERROR) << "Too large difference in component ("
+                   << i << "," << j << "): " << a(i,j) << " != " << b(i,j);
+        return false;
+      }
+    }
+  }
+
+  return true;
+}
+
+
+static bool CompareVector(const OrthancStone::Vector& a,
+                          const OrthancStone::Vector& b,
+                          double threshold = 0.00000001)
+{
+  if (a.size() != b.size())
+  {
+    return false;
+  }
+
+  for (size_t i = 0; i < a.size(); i++)
+  {
+    if (fabs(a(i) - b(i)) > threshold)
+    {
+      LOG(ERROR) << "Too large difference in component "
+                 << i << ": " << a(i) << " != " << b(i);
+      return false;
+    }
+  }
+
+  return true;
+}
+
+
+
+TEST(FiniteProjectiveCamera, Decomposition1)
+{
+  // Example 6.2 of "Multiple View Geometry in Computer Vision - 2nd
+  // edition" (page 163)
+  const double p[12] = {
+    3.53553e+2,  3.39645e+2,  2.77744e+2, -1.44946e+6,
+    -1.03528e+2, 2.33212e+1,  4.59607e+2, -6.32525e+5,
+    7.07107e-1,  -3.53553e-1, 6.12372e-1, -9.18559e+2
+  };
+
+  OrthancStone::FiniteProjectiveCamera camera(p);
+  ASSERT_EQ(3u, camera.GetMatrix().size1());
+  ASSERT_EQ(4u, camera.GetMatrix().size2());
+  ASSERT_EQ(3u, camera.GetIntrinsicParameters().size1());
+  ASSERT_EQ(3u, camera.GetIntrinsicParameters().size2());
+  ASSERT_EQ(3u, camera.GetRotation().size1());
+  ASSERT_EQ(3u, camera.GetRotation().size2());
+  ASSERT_EQ(3u, camera.GetCenter().size());
+
+  ASSERT_NEAR(1000.0, camera.GetCenter()[0], 0.01);
+  ASSERT_NEAR(2000.0, camera.GetCenter()[1], 0.01);
+  ASSERT_NEAR(1500.0, camera.GetCenter()[2], 0.01);
+
+  ASSERT_NEAR(468.2, camera.GetIntrinsicParameters() (0, 0), 0.1);
+  ASSERT_NEAR(91.2,  camera.GetIntrinsicParameters() (0, 1), 0.1);
+  ASSERT_NEAR(300.0, camera.GetIntrinsicParameters() (0, 2), 0.1);
+  ASSERT_NEAR(427.2, camera.GetIntrinsicParameters() (1, 1), 0.1);
+  ASSERT_NEAR(200.0, camera.GetIntrinsicParameters() (1, 2), 0.1);
+  ASSERT_NEAR(1.0,   camera.GetIntrinsicParameters() (2, 2), 0.1);
+
+  ASSERT_NEAR(0, camera.GetIntrinsicParameters() (1, 0), 0.0000001);
+  ASSERT_NEAR(0, camera.GetIntrinsicParameters() (2, 0), 0.0000001);
+  ASSERT_NEAR(0, camera.GetIntrinsicParameters() (2, 1), 0.0000001);
+
+  ASSERT_NEAR(0.41380,  camera.GetRotation() (0, 0), 0.00001);
+  ASSERT_NEAR(0.90915,  camera.GetRotation() (0, 1), 0.00001);
+  ASSERT_NEAR(0.04708,  camera.GetRotation() (0, 2), 0.00001);
+  ASSERT_NEAR(-0.57338, camera.GetRotation() (1, 0), 0.00001);
+  ASSERT_NEAR(0.22011,  camera.GetRotation() (1, 1), 0.00001);
+  ASSERT_NEAR(0.78917,  camera.GetRotation() (1, 2), 0.00001);
+  ASSERT_NEAR(0.70711,  camera.GetRotation() (2, 0), 0.00001);
+  ASSERT_NEAR(-0.35355, camera.GetRotation() (2, 1), 0.00001);
+  ASSERT_NEAR(0.61237,  camera.GetRotation() (2, 2), 0.00001);
+
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(camera.GetRotation()));
+
+  OrthancStone::FiniteProjectiveCamera camera2(camera.GetIntrinsicParameters(),
+                                               camera.GetRotation(),
+                                               camera.GetCenter());
+
+  ASSERT_TRUE(CompareMatrix(camera.GetMatrix(), camera2.GetMatrix()));
+  ASSERT_TRUE(CompareMatrix(camera.GetIntrinsicParameters(), camera2.GetIntrinsicParameters()));
+  ASSERT_TRUE(CompareMatrix(camera.GetRotation(), camera2.GetRotation()));
+  ASSERT_TRUE(CompareVector(camera.GetCenter(), camera2.GetCenter()));
+}
+
+
+TEST(FiniteProjectiveCamera, Decomposition2)
+{
+  const double p[] = { 1188.111986, 580.205341, -808.445330, 128000.000000, -366.466264, 1446.510501, 418.499736, 128000.000000, -0.487118, 0.291726, -0.823172, 500.000000 };
+  const double k[] = { -1528.494743, 0.000000, 256.000000, 0.000000, 1528.494743, 256.000000, 0.000000, 0.000000, 1.000000 };
+  const double r[] = { -0.858893, -0.330733, 0.391047, -0.158171, 0.897503, 0.411668, -0.487118, 0.291726, -0.823172 };
+  const double c[] = { 243.558936, -145.863085, 411.585964 };
+
+  OrthancStone::FiniteProjectiveCamera camera(p);
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(camera.GetRotation()));
+
+  OrthancStone::FiniteProjectiveCamera camera2(k, r, c);
+  ASSERT_TRUE(CompareMatrix(camera.GetMatrix(), camera2.GetMatrix(), 1));
+  ASSERT_TRUE(CompareMatrix(camera.GetIntrinsicParameters(), camera2.GetIntrinsicParameters(), 0.001));
+  ASSERT_TRUE(CompareMatrix(camera.GetRotation(), camera2.GetRotation(), 0.000001));
+  ASSERT_TRUE(CompareVector(camera.GetCenter(), camera2.GetCenter(), 0.0001));
+}
+
+
+TEST(FiniteProjectiveCamera, Decomposition3)
+{
+  const double p[] = { 10, 0, 0, 0,
+                       0, 20, 0, 0,
+                       0, 0, 30, 0 };
+
+  OrthancStone::FiniteProjectiveCamera camera(p);
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(camera.GetRotation()));
+  ASSERT_DOUBLE_EQ(10, camera.GetIntrinsicParameters() (0, 0));
+  ASSERT_DOUBLE_EQ(20, camera.GetIntrinsicParameters() (1, 1));
+  ASSERT_DOUBLE_EQ(30, camera.GetIntrinsicParameters() (2, 2));
+  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (0, 0));
+  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (1, 1));
+  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (2, 2));
+  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (0));
+  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (1));
+  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (2));
+}
+
+
+TEST(FiniteProjectiveCamera, Decomposition4)
+{
+  const double p[] = { 1, 0, 0, 10,
+                       0, 1, 0, 20,
+                       0, 0, 1, 30 };
+
+  OrthancStone::FiniteProjectiveCamera camera(p);
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(camera.GetRotation()));
+  ASSERT_DOUBLE_EQ(1, camera.GetIntrinsicParameters() (0, 0));
+  ASSERT_DOUBLE_EQ(1, camera.GetIntrinsicParameters() (1, 1));
+  ASSERT_DOUBLE_EQ(1, camera.GetIntrinsicParameters() (2, 2));
+  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (0, 0));
+  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (1, 1));
+  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (2, 2));
+  ASSERT_DOUBLE_EQ(-10, camera.GetCenter() (0));
+  ASSERT_DOUBLE_EQ(-20, camera.GetCenter() (1));
+  ASSERT_DOUBLE_EQ(-30, camera.GetCenter() (2));
+}
+
+
+TEST(FiniteProjectiveCamera, Decomposition5)
+{
+  const double p[] = { 0, 0, 10, 0,
+                       0, 20, 0, 0,
+                       30, 0, 0, 0 };
+
+  OrthancStone::FiniteProjectiveCamera camera(p);
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(camera.GetRotation()));
+  ASSERT_DOUBLE_EQ(-10, camera.GetIntrinsicParameters() (0, 0));
+  ASSERT_DOUBLE_EQ(20, camera.GetIntrinsicParameters() (1, 1));
+  ASSERT_DOUBLE_EQ(30, camera.GetIntrinsicParameters() (2, 2));
+  ASSERT_DOUBLE_EQ(-1, camera.GetRotation() (0, 2));
+  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (1, 1));
+  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (2, 0));
+  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (0));
+  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (1));
+  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (2));
+
+  OrthancStone::FiniteProjectiveCamera camera2(camera.GetIntrinsicParameters(),
+                                               camera.GetRotation(),
+                                               camera.GetCenter());
+  ASSERT_TRUE(CompareMatrix(camera.GetMatrix(), camera2.GetMatrix()));
+  ASSERT_TRUE(CompareMatrix(camera.GetIntrinsicParameters(), camera2.GetIntrinsicParameters()));
+  ASSERT_TRUE(CompareMatrix(camera.GetRotation(), camera2.GetRotation()));
+  ASSERT_TRUE(CompareVector(camera.GetCenter(), camera2.GetCenter()));
+}
+
+
+static double GetCosAngle(const OrthancStone::Vector& a,
+                          const OrthancStone::Vector& b)
+{
+  // Returns the cosine of the angle between two vectors
+  // https://en.wikipedia.org/wiki/Dot_product#Geometric_definition
+  return boost::numeric::ublas::inner_prod(a, b) / 
+    (boost::numeric::ublas::norm_2(a) * boost::numeric::ublas::norm_2(b));
+}
+
+
+TEST(FiniteProjectiveCamera, Ray)
+{
+  const double pp[] = { -1499.650894, 2954.618773, -259.737419, 637891.819097,
+                        -2951.517707, -1501.019129, -285.785281, 637891.819097,
+                        0.008528, 0.003067, -0.999959, 2491.764918 };
+
+  const OrthancStone::FiniteProjectiveCamera camera(pp);
+
+  ASSERT_NEAR(-21.2492, camera.GetCenter() (0), 0.0001);
+  ASSERT_NEAR(-7.64234, camera.GetCenter() (1), 0.00001);
+  ASSERT_NEAR(2491.66, camera.GetCenter() (2), 0.01);
+
+  // Image plane that led to these parameters, with principal point at
+  // (256,256). The image has dimensions 512x512.
+  OrthancStone::Vector o =
+    OrthancStone::LinearAlgebra::CreateVector(7.009620, 2.521030, -821.942000);
+  OrthancStone::Vector ax =
+    OrthancStone::LinearAlgebra::CreateVector(-0.453219, 0.891399, -0.001131);
+  OrthancStone::Vector ay =
+    OrthancStone::LinearAlgebra::CreateVector(-0.891359, -0.453210, -0.008992);
+
+  OrthancStone::CoordinateSystem3D imagePlane(o, ax, ay);
+
+  // Back-projection of the principal point
+  {
+    OrthancStone::Vector ray = camera.GetRayDirection(256, 256);
+
+    // The principal axis vector is orthogonal to the image plane
+    // (i.e. parallel to the plane normal), in the opposite direction
+    // ("-1" corresponds to "cos(pi)").
+    ASSERT_NEAR(-1, GetCosAngle(ray, imagePlane.GetNormal()), 0.0000001);
+
+    // Forward projection of principal axis, resulting in the principal point
+    double x, y;
+    camera.ApplyFinite(x, y, camera.GetCenter() - ray);
+
+    ASSERT_NEAR(256, x, 0.00001);
+    ASSERT_NEAR(256, y, 0.00001);
+  }
+
+  // Back-projection of the 4 corners of the image
+  std::vector<double> cx, cy;
+  cx.push_back(0);
+  cy.push_back(0);
+  cx.push_back(512);
+  cy.push_back(0);
+  cx.push_back(512);
+  cy.push_back(512);
+  cx.push_back(0);
+  cy.push_back(512);
+
+  bool first = true;
+  double angle;
+
+  for (size_t i = 0; i < cx.size(); i++)
+  {
+    OrthancStone::Vector ray = camera.GetRayDirection(cx[i], cy[i]);
+
+    // Check that the angle wrt. principal axis is the same for all
+    // the 4 corners
+    double a = GetCosAngle(ray, imagePlane.GetNormal());
+    if (first)
+    {
+      first = false;
+      angle = a;
+    }
+    else
+    {
+      ASSERT_NEAR(angle, a, 0.000001);
+    }
+
+    // Forward projection of the ray, going back to the original point
+    double x, y;
+    camera.ApplyFinite(x, y, camera.GetCenter() - ray);
+    
+    ASSERT_NEAR(cx[i], x, 0.00001);
+    ASSERT_NEAR(cy[i], y, 0.00001);
+
+    // Alternative construction, by computing the intersection of the
+    // ray with the image plane
+    OrthancStone::Vector p;
+    ASSERT_TRUE(imagePlane.IntersectLine(p, camera.GetCenter(), -ray));
+    imagePlane.ProjectPoint(x, y, p);
+    ASSERT_NEAR(cx[i], x + 256, 0.01);
+    ASSERT_NEAR(cy[i], y + 256, 0.01);
+  }
+}
+
+
+TEST(Matrix, Inverse1)
+{
+  OrthancStone::Matrix a, b;
+
+  a.resize(0, 0);
+  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
+  ASSERT_EQ(0u, b.size1());
+  ASSERT_EQ(0u, b.size2());
+
+  a.resize(2, 3);
+  ASSERT_THROW(OrthancStone::LinearAlgebra::InvertMatrix(b, a), Orthanc::OrthancException);
+
+  a.resize(1, 1);
+  a(0, 0) = 45.0;
+
+  ASSERT_DOUBLE_EQ(45, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
+  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
+  ASSERT_EQ(1u, b.size1());
+  ASSERT_EQ(1u, b.size2());
+  ASSERT_DOUBLE_EQ(1.0 / 45.0, b(0, 0));
+
+  a(0, 0) = 0;
+  ASSERT_DOUBLE_EQ(0, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
+  ASSERT_THROW(OrthancStone::LinearAlgebra::InvertMatrix(b, a), Orthanc::OrthancException);
+}
+
+
+TEST(Matrix, Inverse2)
+{
+  OrthancStone::Matrix a, b;
+  a.resize(2, 2);
+  a(0, 0) = 4;
+  a(0, 1) = 3;
+  a(1, 0) = 3;
+  a(1, 1) = 2;
+
+  ASSERT_DOUBLE_EQ(-1, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
+  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
+  ASSERT_EQ(2u, b.size1());
+  ASSERT_EQ(2u, b.size2());
+
+  ASSERT_DOUBLE_EQ(-2, b(0, 0));
+  ASSERT_DOUBLE_EQ(3, b(0, 1));
+  ASSERT_DOUBLE_EQ(3, b(1, 0));
+  ASSERT_DOUBLE_EQ(-4, b(1, 1));
+
+  a(0, 0) = 1;
+  a(0, 1) = 2;
+  a(1, 0) = 3;
+  a(1, 1) = 4;
+
+  ASSERT_DOUBLE_EQ(-2, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
+  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
+
+  ASSERT_DOUBLE_EQ(-2, b(0, 0));
+  ASSERT_DOUBLE_EQ(1, b(0, 1));
+  ASSERT_DOUBLE_EQ(1.5, b(1, 0));
+  ASSERT_DOUBLE_EQ(-0.5, b(1, 1));
+}
+
+
+TEST(Matrix, Inverse3)
+{
+  OrthancStone::Matrix a, b;
+  a.resize(3, 3);
+  a(0, 0) = 7;
+  a(0, 1) = 2;
+  a(0, 2) = 1;
+  a(1, 0) = 0;
+  a(1, 1) = 3;
+  a(1, 2) = -1;
+  a(2, 0) = -3;
+  a(2, 1) = 4;
+  a(2, 2) = -2;
+
+  ASSERT_DOUBLE_EQ(1, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
+  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
+  ASSERT_EQ(3u, b.size1());
+  ASSERT_EQ(3u, b.size2());
+
+  ASSERT_DOUBLE_EQ(-2, b(0, 0));
+  ASSERT_DOUBLE_EQ(8, b(0, 1));
+  ASSERT_DOUBLE_EQ(-5, b(0, 2));
+  ASSERT_DOUBLE_EQ(3, b(1, 0));
+  ASSERT_DOUBLE_EQ(-11, b(1, 1));
+  ASSERT_DOUBLE_EQ(7, b(1, 2));
+  ASSERT_DOUBLE_EQ(9, b(2, 0));
+  ASSERT_DOUBLE_EQ(-34, b(2, 1));
+  ASSERT_DOUBLE_EQ(21, b(2, 2));
+
+
+  a(0, 0) = 1;
+  a(0, 1) = 2;
+  a(0, 2) = 2;
+  a(1, 0) = 1;
+  a(1, 1) = 0;
+  a(1, 2) = 1;
+  a(2, 0) = 1;
+  a(2, 1) = 2;
+  a(2, 2) = 1;
+
+  ASSERT_DOUBLE_EQ(2, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
+  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
+  ASSERT_EQ(3u, b.size1());
+  ASSERT_EQ(3u, b.size2());
+
+  ASSERT_DOUBLE_EQ(-1, b(0, 0));
+  ASSERT_DOUBLE_EQ(1, b(0, 1));
+  ASSERT_DOUBLE_EQ(1, b(0, 2));
+  ASSERT_DOUBLE_EQ(0, b(1, 0));
+  ASSERT_DOUBLE_EQ(-0.5, b(1, 1));
+  ASSERT_DOUBLE_EQ(0.5, b(1, 2));
+  ASSERT_DOUBLE_EQ(1, b(2, 0));
+  ASSERT_DOUBLE_EQ(0, b(2, 1));
+  ASSERT_DOUBLE_EQ(-1, b(2, 2));
+}
+
+
+TEST(Matrix, Inverse4)
+{
+  OrthancStone::Matrix a, b;
+  a.resize(4, 4);
+  a(0, 0) = 2;
+  a(0, 1) = 1;
+  a(0, 2) = 2;
+  a(0, 3) = -3;
+  a(1, 0) = -2;
+  a(1, 1) = 2;
+  a(1, 2) = -1;
+  a(1, 3) = -1;
+  a(2, 0) = 2;
+  a(2, 1) = 2;
+  a(2, 2) = -3;
+  a(2, 3) = -1;
+  a(3, 0) = 3;
+  a(3, 1) = -2;
+  a(3, 2) = -3;
+  a(3, 3) = -1;
+
+  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
+  ASSERT_EQ(4u, b.size1());
+  ASSERT_EQ(4u, b.size2());
+
+  b *= 134.0;  // This is the determinant
+
+  ASSERT_DOUBLE_EQ(8, b(0, 0));
+  ASSERT_DOUBLE_EQ(-44, b(0, 1));
+  ASSERT_DOUBLE_EQ(30, b(0, 2));
+  ASSERT_DOUBLE_EQ(-10, b(0, 3));
+  ASSERT_DOUBLE_EQ(2, b(1, 0));
+  ASSERT_DOUBLE_EQ(-11, b(1, 1));
+  ASSERT_DOUBLE_EQ(41, b(1, 2));
+  ASSERT_DOUBLE_EQ(-36, b(1, 3));
+  ASSERT_DOUBLE_EQ(16, b(2, 0));
+  ASSERT_DOUBLE_EQ(-21, b(2, 1));
+  ASSERT_DOUBLE_EQ(-7, b(2, 2));
+  ASSERT_DOUBLE_EQ(-20, b(2, 3));
+  ASSERT_DOUBLE_EQ(-28, b(3, 0));
+  ASSERT_DOUBLE_EQ(-47, b(3, 1));
+  ASSERT_DOUBLE_EQ(29, b(3, 2));
+  ASSERT_DOUBLE_EQ(-32, b(3, 3));
+}
+
+
+TEST(FiniteProjectiveCamera, Calibration)
+{
+  unsigned int volumeWidth = 512;
+  unsigned int volumeHeight = 512;
+  unsigned int volumeDepth = 110;
+
+  OrthancStone::Vector camera = OrthancStone::LinearAlgebra::CreateVector
+    (-1000, -5000, -static_cast<double>(volumeDepth) * 32);
+
+  OrthancStone::Vector principalPoint = OrthancStone::LinearAlgebra::CreateVector
+    (volumeWidth/2, volumeHeight/2, volumeDepth * 2);
+
+  OrthancStone::FiniteProjectiveCamera c(camera, principalPoint, 0, 512, 512, 1, 1);
+
+  double swapv[9] = { 1, 0, 0,
+                      0, -1, 512,
+                      0, 0, 1 };
+  OrthancStone::Matrix swap;
+  OrthancStone::LinearAlgebra::FillMatrix(swap, 3, 3, swapv);
+
+  OrthancStone::Matrix p = OrthancStone::LinearAlgebra::Product(swap, c.GetMatrix());
+  p /= p(2,3);
+
+  ASSERT_NEAR( 1.04437,     p(0,0), 0.00001);
+  ASSERT_NEAR(-0.0703111,   p(0,1), 0.00000001);
+  ASSERT_NEAR(-0.179283,    p(0,2), 0.000001);
+  ASSERT_NEAR( 61.7431,     p(0,3), 0.0001);
+  ASSERT_NEAR( 0.11127,     p(1,0), 0.000001);
+  ASSERT_NEAR(-0.595541,    p(1,1), 0.000001);
+  ASSERT_NEAR( 0.872211,    p(1,2), 0.000001);
+  ASSERT_NEAR( 203.748,     p(1,3), 0.001);
+  ASSERT_NEAR( 3.08593e-05, p(2,0), 0.0000000001);
+  ASSERT_NEAR( 0.000129138, p(2,1), 0.000000001);
+  ASSERT_NEAR( 9.18901e-05, p(2,2), 0.0000000001);
+  ASSERT_NEAR( 1,           p(2,3), 0.0000001);
+}
+
+
+static bool IsEqualRotationVector(OrthancStone::Vector a,
+                                  OrthancStone::Vector b)
+{
+  if (a.size() != b.size() ||
+      a.size() != 3)
+  {
+    return false;
+  }
+  else
+  {
+    OrthancStone::LinearAlgebra::NormalizeVector(a);
+    OrthancStone::LinearAlgebra::NormalizeVector(b);
+    return OrthancStone::LinearAlgebra::IsCloseToZero(boost::numeric::ublas::norm_2(a - b));
+  }
+}
+
+
+TEST(GeometryToolbox, AlignVectorsWithRotation)
+{
+  OrthancStone::Vector a, b;
+  OrthancStone::Matrix r;
+
+  OrthancStone::LinearAlgebra::AssignVector(a, -200, 200, -846.63);
+  OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
+
+  OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b);
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(r));
+  ASSERT_TRUE(IsEqualRotationVector(OrthancStone::LinearAlgebra::Product(r, a), b));
+
+  OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, b, a);
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(r));
+  ASSERT_TRUE(IsEqualRotationVector(OrthancStone::LinearAlgebra::Product(r, b), a));
+
+  OrthancStone::LinearAlgebra::AssignVector(a, 1, 0, 0);
+  OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
+  OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b);
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(r));
+  ASSERT_TRUE(IsEqualRotationVector(OrthancStone::LinearAlgebra::Product(r, a), b));
+
+  OrthancStone::LinearAlgebra::AssignVector(a, 0, 1, 0);
+  OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
+  OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b);
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(r));
+  ASSERT_TRUE(IsEqualRotationVector(OrthancStone::LinearAlgebra::Product(r, a), b));
+
+  OrthancStone::LinearAlgebra::AssignVector(a, 0, 0, 1);
+  OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
+  OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b);
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(r));
+  ASSERT_TRUE(IsEqualRotationVector(OrthancStone::LinearAlgebra::Product(r, a), b));
+
+  OrthancStone::LinearAlgebra::AssignVector(a, 0, 0, 0);
+  OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
+  ASSERT_THROW(OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b), Orthanc::OrthancException);
+
+  // TODO: Deal with opposite vectors
+
+  /*
+    OrthancStone::LinearAlgebra::AssignVector(a, 0, 0, -1);
+    OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
+    OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b);
+    OrthancStone::LinearAlgebra::Print(r);
+    OrthancStone::LinearAlgebra::Print(boost::numeric::ublas::prod(r, a));
+  */
+}
+
+
+static bool IsEqualVectorL1(OrthancStone::Vector a,
+                            OrthancStone::Vector b)
+{
+  if (a.size() != b.size())
+  {
+    return false;
+  }
+  else
+  {
+    for (size_t i = 0; i < a.size(); i++)
+    {
+      if (!OrthancStone::LinearAlgebra::IsNear(a[i], b[i], 0.0001))
+      {
+        return false;
+      }
+    }
+
+    return true;
+  }
+}
+
+
+TEST(VolumeImageGeometry, Basic)
+{
+  using namespace OrthancStone;
+  
+  VolumeImageGeometry g;
+  g.SetSizeInVoxels(10, 20, 30);
+  g.SetVoxelDimensions(1, 2, 3);
+
+  Vector p = g.GetCoordinates(0, 0, 0);
+  ASSERT_EQ(3u, p.size());
+  ASSERT_DOUBLE_EQ(-1.0 / 2.0, p[0]);
+  ASSERT_DOUBLE_EQ(-2.0 / 2.0, p[1]);
+  ASSERT_DOUBLE_EQ(-3.0 / 2.0, p[2]);
+  
+  p = g.GetCoordinates(1, 1, 1);
+  ASSERT_DOUBLE_EQ(-1.0 / 2.0 + 10.0 * 1.0, p[0]);
+  ASSERT_DOUBLE_EQ(-2.0 / 2.0 + 20.0 * 2.0, p[1]);
+  ASSERT_DOUBLE_EQ(-3.0 / 2.0 + 30.0 * 3.0, p[2]);
+
+  VolumeProjection proj;
+  ASSERT_TRUE(g.DetectProjection(proj, g.GetAxialGeometry().GetNormal()));
+  ASSERT_EQ(VolumeProjection_Axial, proj);
+  ASSERT_TRUE(g.DetectProjection(proj, g.GetCoronalGeometry().GetNormal()));
+  ASSERT_EQ(VolumeProjection_Coronal, proj);
+  ASSERT_TRUE(g.DetectProjection(proj, g.GetSagittalGeometry().GetNormal()));
+  ASSERT_EQ(VolumeProjection_Sagittal, proj);
+
+  ASSERT_EQ(10u, g.GetProjectionWidth(VolumeProjection_Axial));
+  ASSERT_EQ(20u, g.GetProjectionHeight(VolumeProjection_Axial));
+  ASSERT_EQ(30u, g.GetProjectionDepth(VolumeProjection_Axial));
+  ASSERT_EQ(10u, g.GetProjectionWidth(VolumeProjection_Coronal));
+  ASSERT_EQ(30u, g.GetProjectionHeight(VolumeProjection_Coronal));
+  ASSERT_EQ(20u, g.GetProjectionDepth(VolumeProjection_Coronal));
+  ASSERT_EQ(20u, g.GetProjectionWidth(VolumeProjection_Sagittal));
+  ASSERT_EQ(30u, g.GetProjectionHeight(VolumeProjection_Sagittal));
+  ASSERT_EQ(10u, g.GetProjectionDepth(VolumeProjection_Sagittal));
+
+  p = g.GetVoxelDimensions(VolumeProjection_Axial);
+  ASSERT_EQ(3u, p.size());
+  ASSERT_DOUBLE_EQ(1, p[0]);
+  ASSERT_DOUBLE_EQ(2, p[1]);
+  ASSERT_DOUBLE_EQ(3, p[2]);
+  p = g.GetVoxelDimensions(VolumeProjection_Coronal);
+  ASSERT_EQ(3u, p.size());
+  ASSERT_DOUBLE_EQ(1, p[0]);
+  ASSERT_DOUBLE_EQ(3, p[1]);
+  ASSERT_DOUBLE_EQ(2, p[2]);
+  p = g.GetVoxelDimensions(VolumeProjection_Sagittal);
+  ASSERT_EQ(3u, p.size());
+  ASSERT_DOUBLE_EQ(2, p[0]);
+  ASSERT_DOUBLE_EQ(3, p[1]);
+  ASSERT_DOUBLE_EQ(1, p[2]);
+
+  // Loop over all the voxels of the volume
+  for (unsigned int z = 0; z < g.GetDepth(); z++)
+  {
+    const float zz = (0.5f + static_cast<float>(z)) / static_cast<float>(g.GetDepth());  // Z-center of the voxel
+    
+    for (unsigned int y = 0; y < g.GetHeight(); y++)
+    {
+      const float yy = (0.5f + static_cast<float>(y)) / static_cast<float>(g.GetHeight());  // Y-center of the voxel
+
+      for (unsigned int x = 0; x < g.GetWidth(); x++)
+      {
+        const float xx = (0.5f + static_cast<float>(x)) / static_cast<float>(g.GetWidth());  // X-center of the voxel
+
+        const float sx = 1.0f;
+        const float sy = 2.0f;
+        const float sz = 3.0f;
+        
+        Vector p = g.GetCoordinates(xx, yy, zz);
+
+        Vector q = (g.GetAxialGeometry().MapSliceToWorldCoordinates(
+                      static_cast<double>(x) * sx,
+                      static_cast<double>(y) * sy) +
+                    z * sz * g.GetAxialGeometry().GetNormal());
+        ASSERT_TRUE(IsEqualVectorL1(p, q));
+        
+        q = (g.GetCoronalGeometry().MapSliceToWorldCoordinates(
+               static_cast<double>(x) * sx,
+               static_cast<double>(g.GetDepth() - 1 - z) * sz) +
+             y * sy * g.GetCoronalGeometry().GetNormal());
+        ASSERT_TRUE(IsEqualVectorL1(p, q));
+
+        /**
+         * WARNING: In sagittal geometry, the normal points to
+         * REDUCING X-axis in the 3D world. This is necessary to keep
+         * the right-hand coordinate system. Hence the "-".
+         **/
+        q = (g.GetSagittalGeometry().MapSliceToWorldCoordinates(
+               static_cast<double>(y) * sy,
+               static_cast<double>(g.GetDepth() - 1 - z) * sz) +
+             x * sx * (-g.GetSagittalGeometry().GetNormal()));
+        ASSERT_TRUE(IsEqualVectorL1(p, q));
+      }
+    }
+  }
+
+  ASSERT_EQ(0, (int) VolumeProjection_Axial);
+  ASSERT_EQ(1, (int) VolumeProjection_Coronal);
+  ASSERT_EQ(2, (int) VolumeProjection_Sagittal);
+  
+  for (int p = 0; p < 3; p++)
+  {
+    VolumeProjection projection = (VolumeProjection) p;
+    const CoordinateSystem3D& s = g.GetProjectionGeometry(projection);
+    
+    ASSERT_THROW(g.GetProjectionSlice(projection, g.GetProjectionDepth(projection)), Orthanc::OrthancException);
+
+    for (unsigned int i = 0; i < g.GetProjectionDepth(projection); i++)
+    {
+      CoordinateSystem3D plane = g.GetProjectionSlice(projection, i);
+
+      if (projection == VolumeProjection_Sagittal)
+      {
+        ASSERT_TRUE(IsEqualVectorL1(plane.GetOrigin(), s.GetOrigin() + static_cast<double>(i) * 
+                                    (-s.GetNormal()) * g.GetVoxelDimensions(projection)[2]));
+      }
+      else
+      {
+        ASSERT_TRUE(IsEqualVectorL1(plane.GetOrigin(), s.GetOrigin() + static_cast<double>(i) * 
+                                    s.GetNormal() * g.GetVoxelDimensions(projection)[2]));
+      }
+      
+      ASSERT_TRUE(IsEqualVectorL1(plane.GetAxisX(), s.GetAxisX()));
+      ASSERT_TRUE(IsEqualVectorL1(plane.GetAxisY(), s.GetAxisY()));
+
+      unsigned int slice;
+      VolumeProjection q;
+      ASSERT_TRUE(g.DetectSlice(q, slice, plane));
+      ASSERT_EQ(projection, q);
+      ASSERT_EQ(i, slice);
+    }
+  }
+}
+
+
+TEST(LinearAlgebra, ParseVectorLocale)
+{
+  OrthancStone::Vector v;
+
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::ParseVector(v, "1.2"));
+  ASSERT_EQ(1u, v.size());
+  ASSERT_DOUBLE_EQ(1.2, v[0]);
+
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::ParseVector(v, "-1.2e+2"));
+  ASSERT_EQ(1u, v.size());
+  ASSERT_DOUBLE_EQ(-120.0, v[0]);
+
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::ParseVector(v, "-1e-2\\2"));
+  ASSERT_EQ(2u, v.size());
+  ASSERT_DOUBLE_EQ(-0.01, v[0]);
+  ASSERT_DOUBLE_EQ(2.0, v[1]);
+
+  ASSERT_TRUE(OrthancStone::LinearAlgebra::ParseVector(v, "1.3671875\\1.3671875"));
+  ASSERT_EQ(2u, v.size());
+  ASSERT_DOUBLE_EQ(1.3671875, v[0]);
+  ASSERT_DOUBLE_EQ(1.3671875, v[1]); 
+}
+
+TEST(GenericToolbox, NormalizeUuid)
+{
+  std::string ref("44ca5051-14ef-4d2f-8bd7-db20bfb61fbb");
+
+  {
+    std::string u("44ca5051-14ef-4d2f-8bd7-db20bfb61fbb");
+    OrthancStone::GenericToolbox::NormalizeUuid(u);
+    ASSERT_EQ(ref, u);
+  }
+
+  // space left
+  {
+    std::string u("  44ca5051-14ef-4d2f-8bd7-db20bfb61fbb");
+    OrthancStone::GenericToolbox::NormalizeUuid(u);
+    ASSERT_EQ(ref, u);
+  }
+
+  // space right
+  {
+    std::string u("44ca5051-14ef-4d2f-8bd7-db20bfb61fbb  ");
+    OrthancStone::GenericToolbox::NormalizeUuid(u);
+    ASSERT_EQ(ref, u);
+  }
+
+  // space l & r 
+  {
+    std::string u("  44ca5051-14ef-4d2f-8bd7-db20bfb61fbb  ");
+    OrthancStone::GenericToolbox::NormalizeUuid(u);
+    ASSERT_EQ(ref, u);
+  }
+
+  // space left + case 
+  {
+    std::string u("  44CA5051-14ef-4d2f-8bd7-dB20bfb61fbb");
+    OrthancStone::GenericToolbox::NormalizeUuid(u);
+    ASSERT_EQ(ref, u);
+  }
+
+  // space right + case 
+  {
+    std::string u("44ca5051-14EF-4D2f-8bd7-db20bfb61fbB  ");
+    OrthancStone::GenericToolbox::NormalizeUuid(u);
+    ASSERT_EQ(ref, u);
+  }
+
+  // space l & r + case
+  {
+    std::string u("  44cA5051-14Ef-4d2f-8bD7-db20bfb61fbb  ");
+    OrthancStone::GenericToolbox::NormalizeUuid(u);
+    ASSERT_EQ(ref, u);
+  }
+
+  // no
+  {
+    std::string u("  44ca5051-14ef-4d2f-8bd7-  db20bfb61fbb");
+    OrthancStone::GenericToolbox::NormalizeUuid(u);
+    ASSERT_NE(ref, u);
+  }
+
+  // no
+  {
+    std::string u("44ca5051-14ef-4d2f-8bd7-db20bfb61fb");
+    OrthancStone::GenericToolbox::NormalizeUuid(u);
+    ASSERT_NE(ref, u);
+  }
+}
+
+
+TEST(CoordinateSystem3D, Basic)
+{
+  using namespace OrthancStone;
+  
+  {
+    CoordinateSystem3D c;
+    ASSERT_FALSE(c.IsValid());
+    ASSERT_DOUBLE_EQ(c.GetNormal()[0], 0);
+    ASSERT_DOUBLE_EQ(c.GetNormal()[1], 0);
+    ASSERT_DOUBLE_EQ(c.GetNormal()[2], 1);
+
+    ASSERT_DOUBLE_EQ(0, c.ComputeDistance(LinearAlgebra::CreateVector(0, 0, 0)));
+    ASSERT_DOUBLE_EQ(0, c.ComputeDistance(LinearAlgebra::CreateVector(5, 0, 0)));
+    ASSERT_DOUBLE_EQ(0, c.ComputeDistance(LinearAlgebra::CreateVector(0, 5, 0)));
+    ASSERT_DOUBLE_EQ(5, c.ComputeDistance(LinearAlgebra::CreateVector(0, 0, 5)));
+  }
+
+  {
+    CoordinateSystem3D c("nope1", "nope2");
+    ASSERT_FALSE(c.IsValid());
+    ASSERT_DOUBLE_EQ(c.GetNormal()[0], 0);
+    ASSERT_DOUBLE_EQ(c.GetNormal()[1], 0);
+    ASSERT_DOUBLE_EQ(c.GetNormal()[2], 1);
+  }
+
+  {
+    // https://www.vedantu.com/maths/perpendicular-distance-of-a-point-from-a-plane
+    CoordinateSystem3D c = CoordinateSystem3D::CreateFromPlaneGeneralForm(2, 4, -4, -6);
+    ASSERT_DOUBLE_EQ(3, c.ComputeDistance(LinearAlgebra::CreateVector(0, 3, 6)));
+  }
+
+  {
+    // https://mathinsight.org/distance_point_plane_examples
+    CoordinateSystem3D c = CoordinateSystem3D::CreateFromPlaneGeneralForm(2, -2, 5, 8);
+    ASSERT_DOUBLE_EQ(39.0 / sqrt(33.0), c.ComputeDistance(LinearAlgebra::CreateVector(4, -4, 3)));
+  }
+
+  {
+    // https://www.ck12.org/calculus/distance-between-a-point-and-a-plane/lesson/Distance-Between-a-Point-and-a-Plane-MAT-ALY/
+    const Vector a = LinearAlgebra::CreateVector(3, 6, 9);
+    const Vector b = LinearAlgebra::CreateVector(9, 6, 3);
+    const Vector c = LinearAlgebra::CreateVector(6, -9, 9);
+    CoordinateSystem3D d = CoordinateSystem3D::CreateFromThreePoints(a, b, c);
+    ASSERT_DOUBLE_EQ(0, d.ComputeDistance(a));
+    ASSERT_DOUBLE_EQ(0, d.ComputeDistance(b));
+    ASSERT_DOUBLE_EQ(0, d.ComputeDistance(c));
+  }
+
+  {
+    // https://tutorial.math.lamar.edu/classes/calcii/eqnsofplanes.aspx
+    const Vector a = LinearAlgebra::CreateVector(1, -2, 0);
+    const Vector b = LinearAlgebra::CreateVector(3, 1, 4);
+    const Vector c = LinearAlgebra::CreateVector(0, -1, 2);
+    CoordinateSystem3D d = CoordinateSystem3D::CreateFromThreePoints(a, b, c);
+    double r = d.GetNormal() [0] / 2.0;
+    ASSERT_DOUBLE_EQ(-8 * r, d.GetNormal() [1]);
+    ASSERT_DOUBLE_EQ(5 * r, d.GetNormal() [2]);
+  }
+}
--- a/UnitTestsSources/TestStructureSet.cpp	Tue Nov 24 07:40:19 2020 +0100
+++ b/UnitTestsSources/TestStructureSet.cpp	Tue Nov 24 12:59:10 2020 +0100
@@ -29,7 +29,6 @@
 #endif
 
 #include "../OrthancStone/Sources/Loaders/DicomStructureSetLoader.h"
-#include "../OrthancStone/Sources/Loaders/GenericLoadersContext.h"
 #include "../OrthancStone/Sources/Loaders/OrthancSeriesVolumeProgressiveLoader.h"
 #include "../OrthancStone/Sources/Toolbox/DicomStructureSet2.h"
 #include "../OrthancStone/Sources/Toolbox/DicomStructureSetUtils.h"
@@ -38,8 +37,6 @@
 #include <boost/date_time/posix_time/posix_time.hpp>
 #include <boost/make_shared.hpp>
 
-#include <SystemToolbox.h>
-
 #include <gtest/gtest.h>
 #include <string>
 
--- a/UnitTestsSources/UnitTestsMain.cpp	Tue Nov 24 07:40:19 2020 +0100
+++ b/UnitTestsSources/UnitTestsMain.cpp	Tue Nov 24 12:59:10 2020 +0100
@@ -21,923 +21,15 @@
 
 #include <gtest/gtest.h>
 
+#include "../OrthancStone/Sources/StoneEnumerations.h"
 #include "../OrthancStone/Sources/StoneInitialization.h"
-#include "../OrthancStone/Sources/Toolbox/FiniteProjectiveCamera.h"
-#include "../OrthancStone/Sources/Toolbox/GenericToolbox.h"
-#include "../OrthancStone/Sources/Toolbox/GeometryToolbox.h"
-#include "../OrthancStone/Sources/Volumes/ImageBuffer3D.h"
-
-#include <Images/ImageProcessing.h>
-#include <Logging.h>
-#include <MultiThreading/SharedMessageQueue.h>
-#include <OrthancException.h>
-
-#include <boost/lexical_cast.hpp>
-#include <boost/date_time/posix_time/posix_time.hpp>
-#include <boost/thread/thread.hpp> 
-#include <boost/math/special_functions/round.hpp>
-
-
-TEST(GeometryToolbox, Interpolation)
-{
-  using namespace OrthancStone::GeometryToolbox;
-  
-  // https://en.wikipedia.org/wiki/Bilinear_interpolation#Application_in_image_processing
-  ASSERT_DOUBLE_EQ(146.1f, ComputeBilinearInterpolationUnitSquare(0.5f, 0.2f, 91, 210, 162, 95));
-
-  ASSERT_DOUBLE_EQ(91,  ComputeBilinearInterpolationUnitSquare(0, 0, 91, 210, 162, 95));
-  ASSERT_DOUBLE_EQ(210, ComputeBilinearInterpolationUnitSquare(1, 0, 91, 210, 162, 95));
-  ASSERT_DOUBLE_EQ(162, ComputeBilinearInterpolationUnitSquare(0, 1, 91, 210, 162, 95));
-  ASSERT_DOUBLE_EQ(95,  ComputeBilinearInterpolationUnitSquare(1, 1, 91, 210, 162, 95));
-
-  ASSERT_DOUBLE_EQ(123.35f, ComputeTrilinearInterpolationUnitSquare
-                  (0.5f, 0.2f, 0.7f,
-                   91, 210, 162, 95,
-                   51, 190, 80, 92));
-
-  ASSERT_DOUBLE_EQ(ComputeBilinearInterpolationUnitSquare(0.5f, 0.2f, 91, 210, 162, 95),
-                  ComputeTrilinearInterpolationUnitSquare(0.5f, 0.2f, 0,
-                                                          91, 210, 162, 95,
-                                                          51, 190, 80, 92));
-
-  ASSERT_DOUBLE_EQ(ComputeBilinearInterpolationUnitSquare(0.5f, 0.2f, 51, 190, 80, 92),
-                  ComputeTrilinearInterpolationUnitSquare(0.5f, 0.2f, 1,
-                                                          91, 210, 162, 95,
-                                                          51, 190, 80, 92));
-}
-
-
-static bool CompareMatrix(const OrthancStone::Matrix& a,
-                          const OrthancStone::Matrix& b,
-                          double threshold = 0.00000001)
-{
-  if (a.size1() != b.size1() ||
-      a.size2() != b.size2())
-  {
-    return false;
-  }
-
-  for (size_t i = 0; i < a.size1(); i++)
-  {
-    for (size_t j = 0; j < a.size2(); j++)
-    {
-      if (fabs(a(i, j) - b(i, j)) > threshold)
-      {
-        LOG(ERROR) << "Too large difference in component ("
-                   << i << "," << j << "): " << a(i,j) << " != " << b(i,j);
-        return false;
-      }
-    }
-  }
-
-  return true;
-}
-
-
-static bool CompareVector(const OrthancStone::Vector& a,
-                          const OrthancStone::Vector& b,
-                          double threshold = 0.00000001)
-{
-  if (a.size() != b.size())
-  {
-    return false;
-  }
-
-  for (size_t i = 0; i < a.size(); i++)
-  {
-    if (fabs(a(i) - b(i)) > threshold)
-    {
-      LOG(ERROR) << "Too large difference in component "
-                 << i << ": " << a(i) << " != " << b(i);
-      return false;
-    }
-  }
-
-  return true;
-}
-
-
-
-TEST(FiniteProjectiveCamera, Decomposition1)
-{
-  // Example 6.2 of "Multiple View Geometry in Computer Vision - 2nd
-  // edition" (page 163)
-  const double p[12] = {
-    3.53553e+2,  3.39645e+2,  2.77744e+2, -1.44946e+6,
-    -1.03528e+2, 2.33212e+1,  4.59607e+2, -6.32525e+5,
-    7.07107e-1,  -3.53553e-1, 6.12372e-1, -9.18559e+2
-  };
-
-  OrthancStone::FiniteProjectiveCamera camera(p);
-  ASSERT_EQ(3u, camera.GetMatrix().size1());
-  ASSERT_EQ(4u, camera.GetMatrix().size2());
-  ASSERT_EQ(3u, camera.GetIntrinsicParameters().size1());
-  ASSERT_EQ(3u, camera.GetIntrinsicParameters().size2());
-  ASSERT_EQ(3u, camera.GetRotation().size1());
-  ASSERT_EQ(3u, camera.GetRotation().size2());
-  ASSERT_EQ(3u, camera.GetCenter().size());
-
-  ASSERT_NEAR(1000.0, camera.GetCenter()[0], 0.01);
-  ASSERT_NEAR(2000.0, camera.GetCenter()[1], 0.01);
-  ASSERT_NEAR(1500.0, camera.GetCenter()[2], 0.01);
-
-  ASSERT_NEAR(468.2, camera.GetIntrinsicParameters() (0, 0), 0.1);
-  ASSERT_NEAR(91.2,  camera.GetIntrinsicParameters() (0, 1), 0.1);
-  ASSERT_NEAR(300.0, camera.GetIntrinsicParameters() (0, 2), 0.1);
-  ASSERT_NEAR(427.2, camera.GetIntrinsicParameters() (1, 1), 0.1);
-  ASSERT_NEAR(200.0, camera.GetIntrinsicParameters() (1, 2), 0.1);
-  ASSERT_NEAR(1.0,   camera.GetIntrinsicParameters() (2, 2), 0.1);
-
-  ASSERT_NEAR(0, camera.GetIntrinsicParameters() (1, 0), 0.0000001);
-  ASSERT_NEAR(0, camera.GetIntrinsicParameters() (2, 0), 0.0000001);
-  ASSERT_NEAR(0, camera.GetIntrinsicParameters() (2, 1), 0.0000001);
-
-  ASSERT_NEAR(0.41380,  camera.GetRotation() (0, 0), 0.00001);
-  ASSERT_NEAR(0.90915,  camera.GetRotation() (0, 1), 0.00001);
-  ASSERT_NEAR(0.04708,  camera.GetRotation() (0, 2), 0.00001);
-  ASSERT_NEAR(-0.57338, camera.GetRotation() (1, 0), 0.00001);
-  ASSERT_NEAR(0.22011,  camera.GetRotation() (1, 1), 0.00001);
-  ASSERT_NEAR(0.78917,  camera.GetRotation() (1, 2), 0.00001);
-  ASSERT_NEAR(0.70711,  camera.GetRotation() (2, 0), 0.00001);
-  ASSERT_NEAR(-0.35355, camera.GetRotation() (2, 1), 0.00001);
-  ASSERT_NEAR(0.61237,  camera.GetRotation() (2, 2), 0.00001);
-
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(camera.GetRotation()));
-
-  OrthancStone::FiniteProjectiveCamera camera2(camera.GetIntrinsicParameters(),
-                                               camera.GetRotation(),
-                                               camera.GetCenter());
-
-  ASSERT_TRUE(CompareMatrix(camera.GetMatrix(), camera2.GetMatrix()));
-  ASSERT_TRUE(CompareMatrix(camera.GetIntrinsicParameters(), camera2.GetIntrinsicParameters()));
-  ASSERT_TRUE(CompareMatrix(camera.GetRotation(), camera2.GetRotation()));
-  ASSERT_TRUE(CompareVector(camera.GetCenter(), camera2.GetCenter()));
-}
-
-
-TEST(FiniteProjectiveCamera, Decomposition2)
-{
-  const double p[] = { 1188.111986, 580.205341, -808.445330, 128000.000000, -366.466264, 1446.510501, 418.499736, 128000.000000, -0.487118, 0.291726, -0.823172, 500.000000 };
-  const double k[] = { -1528.494743, 0.000000, 256.000000, 0.000000, 1528.494743, 256.000000, 0.000000, 0.000000, 1.000000 };
-  const double r[] = { -0.858893, -0.330733, 0.391047, -0.158171, 0.897503, 0.411668, -0.487118, 0.291726, -0.823172 };
-  const double c[] = { 243.558936, -145.863085, 411.585964 };
-
-  OrthancStone::FiniteProjectiveCamera camera(p);
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(camera.GetRotation()));
-
-  OrthancStone::FiniteProjectiveCamera camera2(k, r, c);
-  ASSERT_TRUE(CompareMatrix(camera.GetMatrix(), camera2.GetMatrix(), 1));
-  ASSERT_TRUE(CompareMatrix(camera.GetIntrinsicParameters(), camera2.GetIntrinsicParameters(), 0.001));
-  ASSERT_TRUE(CompareMatrix(camera.GetRotation(), camera2.GetRotation(), 0.000001));
-  ASSERT_TRUE(CompareVector(camera.GetCenter(), camera2.GetCenter(), 0.0001));
-}
-
-
-TEST(FiniteProjectiveCamera, Decomposition3)
-{
-  const double p[] = { 10, 0, 0, 0,
-                       0, 20, 0, 0,
-                       0, 0, 30, 0 };
-
-  OrthancStone::FiniteProjectiveCamera camera(p);
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(camera.GetRotation()));
-  ASSERT_DOUBLE_EQ(10, camera.GetIntrinsicParameters() (0, 0));
-  ASSERT_DOUBLE_EQ(20, camera.GetIntrinsicParameters() (1, 1));
-  ASSERT_DOUBLE_EQ(30, camera.GetIntrinsicParameters() (2, 2));
-  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (0, 0));
-  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (1, 1));
-  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (2, 2));
-  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (0));
-  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (1));
-  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (2));
-}
-
-
-TEST(FiniteProjectiveCamera, Decomposition4)
-{
-  const double p[] = { 1, 0, 0, 10,
-                       0, 1, 0, 20,
-                       0, 0, 1, 30 };
-
-  OrthancStone::FiniteProjectiveCamera camera(p);
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(camera.GetRotation()));
-  ASSERT_DOUBLE_EQ(1, camera.GetIntrinsicParameters() (0, 0));
-  ASSERT_DOUBLE_EQ(1, camera.GetIntrinsicParameters() (1, 1));
-  ASSERT_DOUBLE_EQ(1, camera.GetIntrinsicParameters() (2, 2));
-  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (0, 0));
-  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (1, 1));
-  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (2, 2));
-  ASSERT_DOUBLE_EQ(-10, camera.GetCenter() (0));
-  ASSERT_DOUBLE_EQ(-20, camera.GetCenter() (1));
-  ASSERT_DOUBLE_EQ(-30, camera.GetCenter() (2));
-}
-
-
-TEST(FiniteProjectiveCamera, Decomposition5)
-{
-  const double p[] = { 0, 0, 10, 0,
-                       0, 20, 0, 0,
-                       30, 0, 0, 0 };
 
-  OrthancStone::FiniteProjectiveCamera camera(p);
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(camera.GetRotation()));
-  ASSERT_DOUBLE_EQ(-10, camera.GetIntrinsicParameters() (0, 0));
-  ASSERT_DOUBLE_EQ(20, camera.GetIntrinsicParameters() (1, 1));
-  ASSERT_DOUBLE_EQ(30, camera.GetIntrinsicParameters() (2, 2));
-  ASSERT_DOUBLE_EQ(-1, camera.GetRotation() (0, 2));
-  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (1, 1));
-  ASSERT_DOUBLE_EQ(1, camera.GetRotation() (2, 0));
-  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (0));
-  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (1));
-  ASSERT_DOUBLE_EQ(0, camera.GetCenter() (2));
-
-  OrthancStone::FiniteProjectiveCamera camera2(camera.GetIntrinsicParameters(),
-                                               camera.GetRotation(),
-                                               camera.GetCenter());
-  ASSERT_TRUE(CompareMatrix(camera.GetMatrix(), camera2.GetMatrix()));
-  ASSERT_TRUE(CompareMatrix(camera.GetIntrinsicParameters(), camera2.GetIntrinsicParameters()));
-  ASSERT_TRUE(CompareMatrix(camera.GetRotation(), camera2.GetRotation()));
-  ASSERT_TRUE(CompareVector(camera.GetCenter(), camera2.GetCenter()));
-}
-
-
-static double GetCosAngle(const OrthancStone::Vector& a,
-                          const OrthancStone::Vector& b)
-{
-  // Returns the cosine of the angle between two vectors
-  // https://en.wikipedia.org/wiki/Dot_product#Geometric_definition
-  return boost::numeric::ublas::inner_prod(a, b) / 
-    (boost::numeric::ublas::norm_2(a) * boost::numeric::ublas::norm_2(b));
-}
-
-
-TEST(FiniteProjectiveCamera, Ray)
-{
-  const double pp[] = { -1499.650894, 2954.618773, -259.737419, 637891.819097,
-                        -2951.517707, -1501.019129, -285.785281, 637891.819097,
-                        0.008528, 0.003067, -0.999959, 2491.764918 };
-
-  const OrthancStone::FiniteProjectiveCamera camera(pp);
-
-  ASSERT_NEAR(-21.2492, camera.GetCenter() (0), 0.0001);
-  ASSERT_NEAR(-7.64234, camera.GetCenter() (1), 0.00001);
-  ASSERT_NEAR(2491.66, camera.GetCenter() (2), 0.01);
-
-  // Image plane that led to these parameters, with principal point at
-  // (256,256). The image has dimensions 512x512.
-  OrthancStone::Vector o =
-    OrthancStone::LinearAlgebra::CreateVector(7.009620, 2.521030, -821.942000);
-  OrthancStone::Vector ax =
-    OrthancStone::LinearAlgebra::CreateVector(-0.453219, 0.891399, -0.001131);
-  OrthancStone::Vector ay =
-    OrthancStone::LinearAlgebra::CreateVector(-0.891359, -0.453210, -0.008992);
-
-  OrthancStone::CoordinateSystem3D imagePlane(o, ax, ay);
-
-  // Back-projection of the principal point
-  {
-    OrthancStone::Vector ray = camera.GetRayDirection(256, 256);
-
-    // The principal axis vector is orthogonal to the image plane
-    // (i.e. parallel to the plane normal), in the opposite direction
-    // ("-1" corresponds to "cos(pi)").
-    ASSERT_NEAR(-1, GetCosAngle(ray, imagePlane.GetNormal()), 0.0000001);
-
-    // Forward projection of principal axis, resulting in the principal point
-    double x, y;
-    camera.ApplyFinite(x, y, camera.GetCenter() - ray);
-
-    ASSERT_NEAR(256, x, 0.00001);
-    ASSERT_NEAR(256, y, 0.00001);
-  }
-
-  // Back-projection of the 4 corners of the image
-  std::vector<double> cx, cy;
-  cx.push_back(0);
-  cy.push_back(0);
-  cx.push_back(512);
-  cy.push_back(0);
-  cx.push_back(512);
-  cy.push_back(512);
-  cx.push_back(0);
-  cy.push_back(512);
-
-  bool first = true;
-  double angle;
-
-  for (size_t i = 0; i < cx.size(); i++)
-  {
-    OrthancStone::Vector ray = camera.GetRayDirection(cx[i], cy[i]);
-
-    // Check that the angle wrt. principal axis is the same for all
-    // the 4 corners
-    double a = GetCosAngle(ray, imagePlane.GetNormal());
-    if (first)
-    {
-      first = false;
-      angle = a;
-    }
-    else
-    {
-      ASSERT_NEAR(angle, a, 0.000001);
-    }
-
-    // Forward projection of the ray, going back to the original point
-    double x, y;
-    camera.ApplyFinite(x, y, camera.GetCenter() - ray);
-    
-    ASSERT_NEAR(cx[i], x, 0.00001);
-    ASSERT_NEAR(cy[i], y, 0.00001);
-
-    // Alternative construction, by computing the intersection of the
-    // ray with the image plane
-    OrthancStone::Vector p;
-    ASSERT_TRUE(imagePlane.IntersectLine(p, camera.GetCenter(), -ray));
-    imagePlane.ProjectPoint(x, y, p);
-    ASSERT_NEAR(cx[i], x + 256, 0.01);
-    ASSERT_NEAR(cy[i], y + 256, 0.01);
-  }
-}
-
-
-TEST(Matrix, Inverse1)
-{
-  OrthancStone::Matrix a, b;
-
-  a.resize(0, 0);
-  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
-  ASSERT_EQ(0u, b.size1());
-  ASSERT_EQ(0u, b.size2());
-
-  a.resize(2, 3);
-  ASSERT_THROW(OrthancStone::LinearAlgebra::InvertMatrix(b, a), Orthanc::OrthancException);
-
-  a.resize(1, 1);
-  a(0, 0) = 45.0;
-
-  ASSERT_DOUBLE_EQ(45, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
-  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
-  ASSERT_EQ(1u, b.size1());
-  ASSERT_EQ(1u, b.size2());
-  ASSERT_DOUBLE_EQ(1.0 / 45.0, b(0, 0));
-
-  a(0, 0) = 0;
-  ASSERT_DOUBLE_EQ(0, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
-  ASSERT_THROW(OrthancStone::LinearAlgebra::InvertMatrix(b, a), Orthanc::OrthancException);
-}
-
-
-TEST(Matrix, Inverse2)
-{
-  OrthancStone::Matrix a, b;
-  a.resize(2, 2);
-  a(0, 0) = 4;
-  a(0, 1) = 3;
-  a(1, 0) = 3;
-  a(1, 1) = 2;
-
-  ASSERT_DOUBLE_EQ(-1, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
-  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
-  ASSERT_EQ(2u, b.size1());
-  ASSERT_EQ(2u, b.size2());
-
-  ASSERT_DOUBLE_EQ(-2, b(0, 0));
-  ASSERT_DOUBLE_EQ(3, b(0, 1));
-  ASSERT_DOUBLE_EQ(3, b(1, 0));
-  ASSERT_DOUBLE_EQ(-4, b(1, 1));
-
-  a(0, 0) = 1;
-  a(0, 1) = 2;
-  a(1, 0) = 3;
-  a(1, 1) = 4;
-
-  ASSERT_DOUBLE_EQ(-2, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
-  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
-
-  ASSERT_DOUBLE_EQ(-2, b(0, 0));
-  ASSERT_DOUBLE_EQ(1, b(0, 1));
-  ASSERT_DOUBLE_EQ(1.5, b(1, 0));
-  ASSERT_DOUBLE_EQ(-0.5, b(1, 1));
-}
-
-
-TEST(Matrix, Inverse3)
-{
-  OrthancStone::Matrix a, b;
-  a.resize(3, 3);
-  a(0, 0) = 7;
-  a(0, 1) = 2;
-  a(0, 2) = 1;
-  a(1, 0) = 0;
-  a(1, 1) = 3;
-  a(1, 2) = -1;
-  a(2, 0) = -3;
-  a(2, 1) = 4;
-  a(2, 2) = -2;
-
-  ASSERT_DOUBLE_EQ(1, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
-  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
-  ASSERT_EQ(3u, b.size1());
-  ASSERT_EQ(3u, b.size2());
-
-  ASSERT_DOUBLE_EQ(-2, b(0, 0));
-  ASSERT_DOUBLE_EQ(8, b(0, 1));
-  ASSERT_DOUBLE_EQ(-5, b(0, 2));
-  ASSERT_DOUBLE_EQ(3, b(1, 0));
-  ASSERT_DOUBLE_EQ(-11, b(1, 1));
-  ASSERT_DOUBLE_EQ(7, b(1, 2));
-  ASSERT_DOUBLE_EQ(9, b(2, 0));
-  ASSERT_DOUBLE_EQ(-34, b(2, 1));
-  ASSERT_DOUBLE_EQ(21, b(2, 2));
-
-
-  a(0, 0) = 1;
-  a(0, 1) = 2;
-  a(0, 2) = 2;
-  a(1, 0) = 1;
-  a(1, 1) = 0;
-  a(1, 2) = 1;
-  a(2, 0) = 1;
-  a(2, 1) = 2;
-  a(2, 2) = 1;
-
-  ASSERT_DOUBLE_EQ(2, OrthancStone::LinearAlgebra::ComputeDeterminant(a));
-  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
-  ASSERT_EQ(3u, b.size1());
-  ASSERT_EQ(3u, b.size2());
-
-  ASSERT_DOUBLE_EQ(-1, b(0, 0));
-  ASSERT_DOUBLE_EQ(1, b(0, 1));
-  ASSERT_DOUBLE_EQ(1, b(0, 2));
-  ASSERT_DOUBLE_EQ(0, b(1, 0));
-  ASSERT_DOUBLE_EQ(-0.5, b(1, 1));
-  ASSERT_DOUBLE_EQ(0.5, b(1, 2));
-  ASSERT_DOUBLE_EQ(1, b(2, 0));
-  ASSERT_DOUBLE_EQ(0, b(2, 1));
-  ASSERT_DOUBLE_EQ(-1, b(2, 2));
-}
-
+#include <Logging.h>
 
-TEST(Matrix, Inverse4)
-{
-  OrthancStone::Matrix a, b;
-  a.resize(4, 4);
-  a(0, 0) = 2;
-  a(0, 1) = 1;
-  a(0, 2) = 2;
-  a(0, 3) = -3;
-  a(1, 0) = -2;
-  a(1, 1) = 2;
-  a(1, 2) = -1;
-  a(1, 3) = -1;
-  a(2, 0) = 2;
-  a(2, 1) = 2;
-  a(2, 2) = -3;
-  a(2, 3) = -1;
-  a(3, 0) = 3;
-  a(3, 1) = -2;
-  a(3, 2) = -3;
-  a(3, 3) = -1;
-
-  OrthancStone::LinearAlgebra::InvertMatrix(b, a);
-  ASSERT_EQ(4u, b.size1());
-  ASSERT_EQ(4u, b.size2());
-
-  b *= 134.0;  // This is the determinant
-
-  ASSERT_DOUBLE_EQ(8, b(0, 0));
-  ASSERT_DOUBLE_EQ(-44, b(0, 1));
-  ASSERT_DOUBLE_EQ(30, b(0, 2));
-  ASSERT_DOUBLE_EQ(-10, b(0, 3));
-  ASSERT_DOUBLE_EQ(2, b(1, 0));
-  ASSERT_DOUBLE_EQ(-11, b(1, 1));
-  ASSERT_DOUBLE_EQ(41, b(1, 2));
-  ASSERT_DOUBLE_EQ(-36, b(1, 3));
-  ASSERT_DOUBLE_EQ(16, b(2, 0));
-  ASSERT_DOUBLE_EQ(-21, b(2, 1));
-  ASSERT_DOUBLE_EQ(-7, b(2, 2));
-  ASSERT_DOUBLE_EQ(-20, b(2, 3));
-  ASSERT_DOUBLE_EQ(-28, b(3, 0));
-  ASSERT_DOUBLE_EQ(-47, b(3, 1));
-  ASSERT_DOUBLE_EQ(29, b(3, 2));
-  ASSERT_DOUBLE_EQ(-32, b(3, 3));
-}
-
-
-TEST(FiniteProjectiveCamera, Calibration)
-{
-  unsigned int volumeWidth = 512;
-  unsigned int volumeHeight = 512;
-  unsigned int volumeDepth = 110;
-
-  OrthancStone::Vector camera = OrthancStone::LinearAlgebra::CreateVector
-    (-1000, -5000, -static_cast<double>(volumeDepth) * 32);
-
-  OrthancStone::Vector principalPoint = OrthancStone::LinearAlgebra::CreateVector
-    (volumeWidth/2, volumeHeight/2, volumeDepth * 2);
-
-  OrthancStone::FiniteProjectiveCamera c(camera, principalPoint, 0, 512, 512, 1, 1);
-
-  double swapv[9] = { 1, 0, 0,
-                      0, -1, 512,
-                      0, 0, 1 };
-  OrthancStone::Matrix swap;
-  OrthancStone::LinearAlgebra::FillMatrix(swap, 3, 3, swapv);
-
-  OrthancStone::Matrix p = OrthancStone::LinearAlgebra::Product(swap, c.GetMatrix());
-  p /= p(2,3);
-
-  ASSERT_NEAR( 1.04437,     p(0,0), 0.00001);
-  ASSERT_NEAR(-0.0703111,   p(0,1), 0.00000001);
-  ASSERT_NEAR(-0.179283,    p(0,2), 0.000001);
-  ASSERT_NEAR( 61.7431,     p(0,3), 0.0001);
-  ASSERT_NEAR( 0.11127,     p(1,0), 0.000001);
-  ASSERT_NEAR(-0.595541,    p(1,1), 0.000001);
-  ASSERT_NEAR( 0.872211,    p(1,2), 0.000001);
-  ASSERT_NEAR( 203.748,     p(1,3), 0.001);
-  ASSERT_NEAR( 3.08593e-05, p(2,0), 0.0000000001);
-  ASSERT_NEAR( 0.000129138, p(2,1), 0.000000001);
-  ASSERT_NEAR( 9.18901e-05, p(2,2), 0.0000000001);
-  ASSERT_NEAR( 1,           p(2,3), 0.0000001);
-}
-
-
-static bool IsEqualRotationVector(OrthancStone::Vector a,
-                                  OrthancStone::Vector b)
-{
-  if (a.size() != b.size() ||
-      a.size() != 3)
-  {
-    return false;
-  }
-  else
-  {
-    OrthancStone::LinearAlgebra::NormalizeVector(a);
-    OrthancStone::LinearAlgebra::NormalizeVector(b);
-    return OrthancStone::LinearAlgebra::IsCloseToZero(boost::numeric::ublas::norm_2(a - b));
-  }
-}
-
-
-TEST(GeometryToolbox, AlignVectorsWithRotation)
-{
-  OrthancStone::Vector a, b;
-  OrthancStone::Matrix r;
-
-  OrthancStone::LinearAlgebra::AssignVector(a, -200, 200, -846.63);
-  OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
-
-  OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b);
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(r));
-  ASSERT_TRUE(IsEqualRotationVector(OrthancStone::LinearAlgebra::Product(r, a), b));
-
-  OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, b, a);
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(r));
-  ASSERT_TRUE(IsEqualRotationVector(OrthancStone::LinearAlgebra::Product(r, b), a));
-
-  OrthancStone::LinearAlgebra::AssignVector(a, 1, 0, 0);
-  OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
-  OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b);
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(r));
-  ASSERT_TRUE(IsEqualRotationVector(OrthancStone::LinearAlgebra::Product(r, a), b));
-
-  OrthancStone::LinearAlgebra::AssignVector(a, 0, 1, 0);
-  OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
-  OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b);
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(r));
-  ASSERT_TRUE(IsEqualRotationVector(OrthancStone::LinearAlgebra::Product(r, a), b));
-
-  OrthancStone::LinearAlgebra::AssignVector(a, 0, 0, 1);
-  OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
-  OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b);
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::IsRotationMatrix(r));
-  ASSERT_TRUE(IsEqualRotationVector(OrthancStone::LinearAlgebra::Product(r, a), b));
-
-  OrthancStone::LinearAlgebra::AssignVector(a, 0, 0, 0);
-  OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
-  ASSERT_THROW(OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b), Orthanc::OrthancException);
-
-  // TODO: Deal with opposite vectors
-
-  /*
-    OrthancStone::LinearAlgebra::AssignVector(a, 0, 0, -1);
-    OrthancStone::LinearAlgebra::AssignVector(b, 0, 0, 1);
-    OrthancStone::GeometryToolbox::AlignVectorsWithRotation(r, a, b);
-    OrthancStone::LinearAlgebra::Print(r);
-    OrthancStone::LinearAlgebra::Print(boost::numeric::ublas::prod(r, a));
-  */
-}
-
-
-static bool IsEqualVectorL1(OrthancStone::Vector a,
-                            OrthancStone::Vector b)
-{
-  if (a.size() != b.size())
-  {
-    return false;
-  }
-  else
-  {
-    for (size_t i = 0; i < a.size(); i++)
-    {
-      if (!OrthancStone::LinearAlgebra::IsNear(a[i], b[i], 0.0001))
-      {
-        return false;
-      }
-    }
-
-    return true;
-  }
-}
-
-
-TEST(VolumeImageGeometry, Basic)
-{
-  using namespace OrthancStone;
-  
-  VolumeImageGeometry g;
-  g.SetSizeInVoxels(10, 20, 30);
-  g.SetVoxelDimensions(1, 2, 3);
-
-  Vector p = g.GetCoordinates(0, 0, 0);
-  ASSERT_EQ(3u, p.size());
-  ASSERT_DOUBLE_EQ(-1.0 / 2.0, p[0]);
-  ASSERT_DOUBLE_EQ(-2.0 / 2.0, p[1]);
-  ASSERT_DOUBLE_EQ(-3.0 / 2.0, p[2]);
-  
-  p = g.GetCoordinates(1, 1, 1);
-  ASSERT_DOUBLE_EQ(-1.0 / 2.0 + 10.0 * 1.0, p[0]);
-  ASSERT_DOUBLE_EQ(-2.0 / 2.0 + 20.0 * 2.0, p[1]);
-  ASSERT_DOUBLE_EQ(-3.0 / 2.0 + 30.0 * 3.0, p[2]);
-
-  VolumeProjection proj;
-  ASSERT_TRUE(g.DetectProjection(proj, g.GetAxialGeometry().GetNormal()));
-  ASSERT_EQ(VolumeProjection_Axial, proj);
-  ASSERT_TRUE(g.DetectProjection(proj, g.GetCoronalGeometry().GetNormal()));
-  ASSERT_EQ(VolumeProjection_Coronal, proj);
-  ASSERT_TRUE(g.DetectProjection(proj, g.GetSagittalGeometry().GetNormal()));
-  ASSERT_EQ(VolumeProjection_Sagittal, proj);
-
-  ASSERT_EQ(10u, g.GetProjectionWidth(VolumeProjection_Axial));
-  ASSERT_EQ(20u, g.GetProjectionHeight(VolumeProjection_Axial));
-  ASSERT_EQ(30u, g.GetProjectionDepth(VolumeProjection_Axial));
-  ASSERT_EQ(10u, g.GetProjectionWidth(VolumeProjection_Coronal));
-  ASSERT_EQ(30u, g.GetProjectionHeight(VolumeProjection_Coronal));
-  ASSERT_EQ(20u, g.GetProjectionDepth(VolumeProjection_Coronal));
-  ASSERT_EQ(20u, g.GetProjectionWidth(VolumeProjection_Sagittal));
-  ASSERT_EQ(30u, g.GetProjectionHeight(VolumeProjection_Sagittal));
-  ASSERT_EQ(10u, g.GetProjectionDepth(VolumeProjection_Sagittal));
-
-  p = g.GetVoxelDimensions(VolumeProjection_Axial);
-  ASSERT_EQ(3u, p.size());
-  ASSERT_DOUBLE_EQ(1, p[0]);
-  ASSERT_DOUBLE_EQ(2, p[1]);
-  ASSERT_DOUBLE_EQ(3, p[2]);
-  p = g.GetVoxelDimensions(VolumeProjection_Coronal);
-  ASSERT_EQ(3u, p.size());
-  ASSERT_DOUBLE_EQ(1, p[0]);
-  ASSERT_DOUBLE_EQ(3, p[1]);
-  ASSERT_DOUBLE_EQ(2, p[2]);
-  p = g.GetVoxelDimensions(VolumeProjection_Sagittal);
-  ASSERT_EQ(3u, p.size());
-  ASSERT_DOUBLE_EQ(2, p[0]);
-  ASSERT_DOUBLE_EQ(3, p[1]);
-  ASSERT_DOUBLE_EQ(1, p[2]);
+#if defined(__EMSCRIPTEN__)
+#  include <emscripten.h>
+#endif
 
-  // Loop over all the voxels of the volume
-  for (unsigned int z = 0; z < g.GetDepth(); z++)
-  {
-    const float zz = (0.5f + static_cast<float>(z)) / static_cast<float>(g.GetDepth());  // Z-center of the voxel
-    
-    for (unsigned int y = 0; y < g.GetHeight(); y++)
-    {
-      const float yy = (0.5f + static_cast<float>(y)) / static_cast<float>(g.GetHeight());  // Y-center of the voxel
-
-      for (unsigned int x = 0; x < g.GetWidth(); x++)
-      {
-        const float xx = (0.5f + static_cast<float>(x)) / static_cast<float>(g.GetWidth());  // X-center of the voxel
-
-        const float sx = 1.0f;
-        const float sy = 2.0f;
-        const float sz = 3.0f;
-        
-        Vector p = g.GetCoordinates(xx, yy, zz);
-
-        Vector q = (g.GetAxialGeometry().MapSliceToWorldCoordinates(
-                      static_cast<double>(x) * sx,
-                      static_cast<double>(y) * sy) +
-                    z * sz * g.GetAxialGeometry().GetNormal());
-        ASSERT_TRUE(IsEqualVectorL1(p, q));
-        
-        q = (g.GetCoronalGeometry().MapSliceToWorldCoordinates(
-               static_cast<double>(x) * sx,
-               static_cast<double>(g.GetDepth() - 1 - z) * sz) +
-             y * sy * g.GetCoronalGeometry().GetNormal());
-        ASSERT_TRUE(IsEqualVectorL1(p, q));
-
-        /**
-         * WARNING: In sagittal geometry, the normal points to
-         * REDUCING X-axis in the 3D world. This is necessary to keep
-         * the right-hand coordinate system. Hence the "-".
-         **/
-        q = (g.GetSagittalGeometry().MapSliceToWorldCoordinates(
-               static_cast<double>(y) * sy,
-               static_cast<double>(g.GetDepth() - 1 - z) * sz) +
-             x * sx * (-g.GetSagittalGeometry().GetNormal()));
-        ASSERT_TRUE(IsEqualVectorL1(p, q));
-      }
-    }
-  }
-
-  ASSERT_EQ(0, (int) VolumeProjection_Axial);
-  ASSERT_EQ(1, (int) VolumeProjection_Coronal);
-  ASSERT_EQ(2, (int) VolumeProjection_Sagittal);
-  
-  for (int p = 0; p < 3; p++)
-  {
-    VolumeProjection projection = (VolumeProjection) p;
-    const CoordinateSystem3D& s = g.GetProjectionGeometry(projection);
-    
-    ASSERT_THROW(g.GetProjectionSlice(projection, g.GetProjectionDepth(projection)), Orthanc::OrthancException);
-
-    for (unsigned int i = 0; i < g.GetProjectionDepth(projection); i++)
-    {
-      CoordinateSystem3D plane = g.GetProjectionSlice(projection, i);
-
-      if (projection == VolumeProjection_Sagittal)
-      {
-        ASSERT_TRUE(IsEqualVectorL1(plane.GetOrigin(), s.GetOrigin() + static_cast<double>(i) * 
-                                    (-s.GetNormal()) * g.GetVoxelDimensions(projection)[2]));
-      }
-      else
-      {
-        ASSERT_TRUE(IsEqualVectorL1(plane.GetOrigin(), s.GetOrigin() + static_cast<double>(i) * 
-                                    s.GetNormal() * g.GetVoxelDimensions(projection)[2]));
-      }
-      
-      ASSERT_TRUE(IsEqualVectorL1(plane.GetAxisX(), s.GetAxisX()));
-      ASSERT_TRUE(IsEqualVectorL1(plane.GetAxisY(), s.GetAxisY()));
-
-      unsigned int slice;
-      VolumeProjection q;
-      ASSERT_TRUE(g.DetectSlice(q, slice, plane));
-      ASSERT_EQ(projection, q);
-      ASSERT_EQ(i, slice);
-    }
-  }
-}
-
-
-TEST(LinearAlgebra, ParseVectorLocale)
-{
-  OrthancStone::Vector v;
-
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::ParseVector(v, "1.2"));
-  ASSERT_EQ(1u, v.size());
-  ASSERT_DOUBLE_EQ(1.2, v[0]);
-
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::ParseVector(v, "-1.2e+2"));
-  ASSERT_EQ(1u, v.size());
-  ASSERT_DOUBLE_EQ(-120.0, v[0]);
-
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::ParseVector(v, "-1e-2\\2"));
-  ASSERT_EQ(2u, v.size());
-  ASSERT_DOUBLE_EQ(-0.01, v[0]);
-  ASSERT_DOUBLE_EQ(2.0, v[1]);
-
-  ASSERT_TRUE(OrthancStone::LinearAlgebra::ParseVector(v, "1.3671875\\1.3671875"));
-  ASSERT_EQ(2u, v.size());
-  ASSERT_DOUBLE_EQ(1.3671875, v[0]);
-  ASSERT_DOUBLE_EQ(1.3671875, v[1]); 
-}
-
-TEST(GenericToolbox, NormalizeUuid)
-{
-  std::string ref("44ca5051-14ef-4d2f-8bd7-db20bfb61fbb");
-
-  {
-    std::string u("44ca5051-14ef-4d2f-8bd7-db20bfb61fbb");
-    OrthancStone::GenericToolbox::NormalizeUuid(u);
-    ASSERT_EQ(ref, u);
-  }
-
-  // space left
-  {
-    std::string u("  44ca5051-14ef-4d2f-8bd7-db20bfb61fbb");
-    OrthancStone::GenericToolbox::NormalizeUuid(u);
-    ASSERT_EQ(ref, u);
-  }
-
-  // space right
-  {
-    std::string u("44ca5051-14ef-4d2f-8bd7-db20bfb61fbb  ");
-    OrthancStone::GenericToolbox::NormalizeUuid(u);
-    ASSERT_EQ(ref, u);
-  }
-
-  // space l & r 
-  {
-    std::string u("  44ca5051-14ef-4d2f-8bd7-db20bfb61fbb  ");
-    OrthancStone::GenericToolbox::NormalizeUuid(u);
-    ASSERT_EQ(ref, u);
-  }
-
-  // space left + case 
-  {
-    std::string u("  44CA5051-14ef-4d2f-8bd7-dB20bfb61fbb");
-    OrthancStone::GenericToolbox::NormalizeUuid(u);
-    ASSERT_EQ(ref, u);
-  }
-
-  // space right + case 
-  {
-    std::string u("44ca5051-14EF-4D2f-8bd7-db20bfb61fbB  ");
-    OrthancStone::GenericToolbox::NormalizeUuid(u);
-    ASSERT_EQ(ref, u);
-  }
-
-  // space l & r + case
-  {
-    std::string u("  44cA5051-14Ef-4d2f-8bD7-db20bfb61fbb  ");
-    OrthancStone::GenericToolbox::NormalizeUuid(u);
-    ASSERT_EQ(ref, u);
-  }
-
-  // no
-  {
-    std::string u("  44ca5051-14ef-4d2f-8bd7-  db20bfb61fbb");
-    OrthancStone::GenericToolbox::NormalizeUuid(u);
-    ASSERT_NE(ref, u);
-  }
-
-  // no
-  {
-    std::string u("44ca5051-14ef-4d2f-8bd7-db20bfb61fb");
-    OrthancStone::GenericToolbox::NormalizeUuid(u);
-    ASSERT_NE(ref, u);
-  }
-}
-
-
-TEST(CoordinateSystem3D, Basic)
-{
-  using namespace OrthancStone;
-  
-  {
-    CoordinateSystem3D c;
-    ASSERT_FALSE(c.IsValid());
-    ASSERT_DOUBLE_EQ(c.GetNormal()[0], 0);
-    ASSERT_DOUBLE_EQ(c.GetNormal()[1], 0);
-    ASSERT_DOUBLE_EQ(c.GetNormal()[2], 1);
-
-    ASSERT_DOUBLE_EQ(0, c.ComputeDistance(LinearAlgebra::CreateVector(0, 0, 0)));
-    ASSERT_DOUBLE_EQ(0, c.ComputeDistance(LinearAlgebra::CreateVector(5, 0, 0)));
-    ASSERT_DOUBLE_EQ(0, c.ComputeDistance(LinearAlgebra::CreateVector(0, 5, 0)));
-    ASSERT_DOUBLE_EQ(5, c.ComputeDistance(LinearAlgebra::CreateVector(0, 0, 5)));
-  }
-
-  {
-    CoordinateSystem3D c("nope1", "nope2");
-    ASSERT_FALSE(c.IsValid());
-    ASSERT_DOUBLE_EQ(c.GetNormal()[0], 0);
-    ASSERT_DOUBLE_EQ(c.GetNormal()[1], 0);
-    ASSERT_DOUBLE_EQ(c.GetNormal()[2], 1);
-  }
-
-  {
-    // https://www.vedantu.com/maths/perpendicular-distance-of-a-point-from-a-plane
-    CoordinateSystem3D c = CoordinateSystem3D::CreateFromPlaneGeneralForm(2, 4, -4, -6);
-    ASSERT_DOUBLE_EQ(3, c.ComputeDistance(LinearAlgebra::CreateVector(0, 3, 6)));
-  }
-
-  {
-    // https://mathinsight.org/distance_point_plane_examples
-    CoordinateSystem3D c = CoordinateSystem3D::CreateFromPlaneGeneralForm(2, -2, 5, 8);
-    ASSERT_DOUBLE_EQ(39.0 / sqrt(33.0), c.ComputeDistance(LinearAlgebra::CreateVector(4, -4, 3)));
-  }
-
-  {
-    // https://www.ck12.org/calculus/distance-between-a-point-and-a-plane/lesson/Distance-Between-a-Point-and-a-Plane-MAT-ALY/
-    const Vector a = LinearAlgebra::CreateVector(3, 6, 9);
-    const Vector b = LinearAlgebra::CreateVector(9, 6, 3);
-    const Vector c = LinearAlgebra::CreateVector(6, -9, 9);
-    CoordinateSystem3D d = CoordinateSystem3D::CreateFromThreePoints(a, b, c);
-    ASSERT_DOUBLE_EQ(0, d.ComputeDistance(a));
-    ASSERT_DOUBLE_EQ(0, d.ComputeDistance(b));
-    ASSERT_DOUBLE_EQ(0, d.ComputeDistance(c));
-  }
-
-  {
-    // https://tutorial.math.lamar.edu/classes/calcii/eqnsofplanes.aspx
-    const Vector a = LinearAlgebra::CreateVector(1, -2, 0);
-    const Vector b = LinearAlgebra::CreateVector(3, 1, 4);
-    const Vector c = LinearAlgebra::CreateVector(0, -1, 2);
-    CoordinateSystem3D d = CoordinateSystem3D::CreateFromThreePoints(a, b, c);
-    double r = d.GetNormal() [0] / 2.0;
-    ASSERT_DOUBLE_EQ(-8 * r, d.GetNormal() [1]);
-    ASSERT_DOUBLE_EQ(5 * r, d.GetNormal() [2]);
-  }
-}
 
 
 TEST(Enumerations, Basic)
@@ -965,13 +57,37 @@
 
 int main(int argc, char **argv)
 {
-  Orthanc::Logging::Initialize();
-  Orthanc::Logging::EnableInfoLevel(true);
+#if defined(__EMSCRIPTEN__)
+  std::string output;
+#endif
+  
+  int result;
+
+  {
+    Orthanc::Logging::Initialize();
+    Orthanc::Logging::EnableInfoLevel(true);
 
-  ::testing::InitGoogleTest(&argc, argv);
-  int result = RUN_ALL_TESTS();
+    ::testing::InitGoogleTest(&argc, argv);
+    
+#if defined(__EMSCRIPTEN__)
+    ::testing::internal::CaptureStdout();
+#endif
+  
+    result = RUN_ALL_TESTS();
+
+    Orthanc::Logging::Finalize();
 
-  Orthanc::Logging::Finalize();
+#if defined(__EMSCRIPTEN__)
+    output = testing::internal::GetCapturedStdout();
+#endif
+  }
+
+#if defined(__EMSCRIPTEN__)
+  EM_ASM({
+      document.getElementById("output").innerHTML = UTF8ToString($0);
+    },
+    output.c_str());
+#endif
 
   return result;
 }
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/UnitTestsSources/UnitTestsSources.cmake	Tue Nov 24 12:59:10 2020 +0100
@@ -0,0 +1,36 @@
+# Stone of Orthanc
+# Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+# Department, University Hospital of Liege, Belgium
+# Copyright (C) 2017-2020 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/>.
+
+
+set(UNIT_TESTS_SOURCES
+  ${CMAKE_CURRENT_LIST_DIR}/DicomTests.cpp
+  ${CMAKE_CURRENT_LIST_DIR}/GenericToolboxTests.cpp
+  ${CMAKE_CURRENT_LIST_DIR}/GeometryToolboxTests.cpp
+  ${CMAKE_CURRENT_LIST_DIR}/ImageToolboxTests.cpp
+  ${CMAKE_CURRENT_LIST_DIR}/PixelTestPatternsTests.cpp
+  ${CMAKE_CURRENT_LIST_DIR}/SortedFramesTests.cpp
+  ${CMAKE_CURRENT_LIST_DIR}/TestMessageBroker.cpp
+  ${CMAKE_CURRENT_LIST_DIR}/TestStrategy.cpp
+  ${CMAKE_CURRENT_LIST_DIR}/TestStructureSet.cpp
+  ${CMAKE_CURRENT_LIST_DIR}/UnitTestsMain.cpp
+
+  ${AUTOGENERATED_SOURCES}
+  ${BOOST_EXTENDED_SOURCES}
+  ${GOOGLE_TEST_SOURCES}
+  ${ORTHANC_STONE_SOURCES}
+  )
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/UnitTestsSources/WebAssembly/CMakeLists.txt	Tue Nov 24 12:59:10 2020 +0100
@@ -0,0 +1,99 @@
+# Stone of Orthanc
+# Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+# Department, University Hospital of Liege, Belgium
+# Copyright (C) 2017-2020 Osimis S.A., Belgium
+#
+# This program is free software: you can redistribute it and/or
+# modify it under the terms of the GNU Affero General Public License
+# as published by the Free Software Foundation, either version 3 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+cmake_minimum_required(VERSION 2.8.3)
+cmake_policy(SET CMP0058 NEW)
+
+project(OrthancStone)
+
+set(ORTHANC_STONE_INSTALL_PREFIX "${CMAKE_SOURCE_DIR}/../../wasm-binaries/" CACHE PATH "Where to put the WebAssembly binaries")
+
+
+# Configuration of the Emscripten compiler for WebAssembly target
+# ---------------------------------------------------------------
+set(USE_WASM ON CACHE BOOL "")
+
+set(WASM_FLAGS "-s WASM=1 -s FETCH=1 -s ASSERTIONS=1 -s DISABLE_EXCEPTION_CATCHING=0")
+if (CMAKE_BUILD_TYPE STREQUAL "Debug")
+  set(WASM_FLAGS "${WASM_FLAGS} -s SAFE_HEAP=1")
+endif()
+
+set(WASM_LINKER_FLAGS "${WASM_LINKER_FLAGS} -s EXTRA_EXPORTED_RUNTIME_METHODS='[\"ccall\", \"cwrap\"]'")
+set(WASM_LINKER_FLAGS "${WASM_LINKER_FLAGS} -s ERROR_ON_UNDEFINED_SYMBOLS=1")
+set(WASM_LINKER_FLAGS "${WASM_LINKER_FLAGS} -s ALLOW_MEMORY_GROWTH=1 -s TOTAL_MEMORY=268435456")  # 256MB + resize
+set(WASM_LINKER_FLAGS "${WASM_LINKER_FLAGS} -s DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR=1")
+add_definitions(
+  -DDISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR=1
+)
+
+
+# Stone of Orthanc configuration
+# ---------------------------------------------------------------
+set(ALLOW_DOWNLOADS ON)
+
+include(${CMAKE_SOURCE_DIR}/../../Applications/Platforms/WebAssembly/OrthancStoneWebAssemblyParameters.cmake)
+
+SET(ENABLE_DCMTK OFF)  # Not necessary
+SET(ENABLE_GOOGLE_TEST OFF)
+SET(ENABLE_LOCALE ON)  # Necessary for text rendering
+SET(ORTHANC_SANDBOXED ON)
+
+# Needed to redirect std::cout to a <div>
+set(ORTHANC_ENABLE_LOGGING_STDIO OFF CACHE INTERNAL "")
+
+# this will set up the build system for Stone of Orthanc and will
+# populate the ORTHANC_STONE_SOURCES CMake variable
+include(${CMAKE_SOURCE_DIR}/../../Applications/Platforms/WebAssembly/OrthancStoneWebAssemblyConfiguration.cmake)
+
+
+################################################################################
+
+# Define the WASM module
+# ---------------------------------------------------------------
+
+set(USE_SYSTEM_GOOGLE_TEST OFF CACHE BOOL "Use the system version of Google Test")
+set(USE_GOOGLE_TEST_DEBIAN_PACKAGE OFF CACHE BOOL "Use the sources of Google Test shipped with libgtest-dev (Debian only)")
+mark_as_advanced(USE_GOOGLE_TEST_DEBIAN_PACKAGE)
+include(${ORTHANC_STONE_ROOT}/../Resources/Orthanc/CMake/DownloadPackage.cmake)
+include(${ORTHANC_STONE_ROOT}/../Resources/Orthanc/CMake/GoogleTestConfiguration.cmake)
+
+
+include(${CMAKE_SOURCE_DIR}/../UnitTestsSources.cmake)
+add_executable(UnitTests ${UNIT_TESTS_SOURCES})
+
+  
+# Declare installation files for the module
+# ---------------------------------------------------------------
+install(
+  TARGETS UnitTests
+  RUNTIME DESTINATION ${ORTHANC_STONE_INSTALL_PREFIX}/UnitTests/
+  )
+
+# Declare installation files for the companion files (web scaffolding)
+# please note that ${CMAKE_CURRENT_BINARY_DIR}/RtViewerWasm.js
+# (the generated JS loader for the WASM module) is handled by the `install1`
+# section above: it is considered to be the binary output of 
+# the linker.
+# ---------------------------------------------------------------
+install(
+  FILES
+  ${CMAKE_SOURCE_DIR}/index.html
+  ${CMAKE_CURRENT_BINARY_DIR}/UnitTests.wasm
+  DESTINATION ${ORTHANC_STONE_INSTALL_PREFIX}/UnitTests
+  )
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/UnitTestsSources/WebAssembly/NOTES.txt	Tue Nov 24 12:59:10 2020 +0100
@@ -0,0 +1,18 @@
+Native compilation (without Docker)
+===================================
+
+Install Emscripten:
+https://emscripten.org/docs/getting_started/downloads.html
+
+Then, if the installation path is "~/Downloads/emsdk/":
+
+# source ~/Downloads/emsdk/emsdk_env.sh
+# mkdir Build && cd Build
+# cmake .. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_TOOLCHAIN_FILE=${EMSDK}/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake -DALLOW_DOWNLOADS=ON -G Ninja
+# ninja install
+
+=> The binaries will be put in "../../../wasm-binaries/UnitTests/"
+
+# cd `pwd`/../../../wasm-binaries/UnitTests
+# python3 -m http.server 8000
+# firefox http://localhost:8000/index.html
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/UnitTestsSources/WebAssembly/index.html	Tue Nov 24 12:59:10 2020 +0100
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <title>Stone of Orthanc</title>
+  </head>
+  <body>
+    <h1>Stone of Orthanc - Unit tests</h1>
+    <pre id="output">
+      Executing the tests...
+    </pre>
+    <script src="UnitTests.js" async></script>
+  </body>
+</html>