# HG changeset patch
# User Sebastien Jodogne <s.jodogne@gmail.com>
# Date 1496219720 -7200
# Node ID af312ce4fe594b7cb010559d2eb6919efdc34dd0
# Parent  166a555becbf9cbfddb81c6665d6cee81b19f0a2
support of 3D swapping of the normal

diff -r 166a555becbf -r af312ce4fe59 Applications/Samples/SingleFrameApplication.h
--- a/Applications/Samples/SingleFrameApplication.h	Tue May 30 22:22:04 2017 +0200
+++ b/Applications/Samples/SingleFrameApplication.h	Wed May 31 10:35:20 2017 +0200
@@ -152,10 +152,20 @@
 #else
           // TEST for scene extents - Rotate the axes
           double a = 15.0 / 180.0 * M_PI;
-          
+
+#if 1
           Vector x; GeometryToolbox::AssignVector(x, cos(a), sin(a), 0);
           Vector y; GeometryToolbox::AssignVector(y, -sin(a), cos(a), 0);
+#else
+          // Flip the normal
+          Vector x; GeometryToolbox::AssignVector(x, cos(a), sin(a), 0);
+          Vector y; GeometryToolbox::AssignVector(y, sin(a), -cos(a), 0);
+#endif
+          
           SliceGeometry s(source_->GetSlice(slice_).GetGeometry().GetOrigin(), x, y);
+          GeometryToolbox::Print(s.GetAxisX());
+          GeometryToolbox::Print(s.GetAxisY());
+          GeometryToolbox::Print(s.GetNormal());
           widget_->SetSlice(s);
 #endif
         }
@@ -241,7 +251,7 @@
 
         std::auto_ptr<LayerWidget> widget(new LayerWidget);
 
-#if 1
+#if 0
         std::auto_ptr<OrthancFrameLayerSource> layer
           (new OrthancFrameLayerSource(context.GetWebService()));
         //layer->SetImageQuality(SliceImageQuality_Jpeg50);
@@ -267,7 +277,7 @@
         ct.reset(new OrthancFrameLayerSource(context.GetWebService()));
         //ct->LoadInstance("c804a1a2-142545c9-33b32fe2-3df4cec0-a2bea6d6", 0);
         //ct->LoadInstance("4bd4304f-47478948-71b24af2-51f4f1bc-275b6c1b", 0);  // BAD SLICE
-        ct->SetImageQuality(SliceImageQuality_Jpeg50);
+        //ct->SetImageQuality(SliceImageQuality_Jpeg50);
         ct->LoadSeries("dd069910-4f090474-7d2bba07-e5c10783-f9e4fb1d");
 
         ct->Register(*this);
diff -r 166a555becbf -r af312ce4fe59 Framework/Toolbox/Slice.cpp
--- a/Framework/Toolbox/Slice.cpp	Tue May 30 22:22:04 2017 +0200
+++ b/Framework/Toolbox/Slice.cpp	Wed May 31 10:35:20 2017 +0200
@@ -178,8 +178,11 @@
     {
       throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
     }
-        
-    return (GeometryToolbox::IsParallel(GetGeometry().GetNormal(), plane.GetNormal()) &&
+
+    bool opposite;
+    return (GeometryToolbox::IsParallelOrOpposite(opposite,
+                                                  GetGeometry().GetNormal(),
+                                                  plane.GetNormal()) &&
             GeometryToolbox::IsNear(GetGeometry().ProjectAlongNormal(GetGeometry().GetOrigin()),
                                     GetGeometry().ProjectAlongNormal(plane.GetOrigin()),
                                     thickness_ / 2.0));