X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=lib%2FcpExtensions%2FVisualization%2FImageSliceActors.cxx;h=24bae091f038ea2a653e2cb289e6ece20aedb171;hb=31f36736e1c12e7247a01bf514e528dfd1188a10;hp=ef55f5463bacf96bb4475edb98d6b1679178ade3;hpb=b23970017af98ef6617ddf40f225d4d15fa65854;p=cpPlugins.git

diff --git a/lib/cpExtensions/Visualization/ImageSliceActors.cxx b/lib/cpExtensions/Visualization/ImageSliceActors.cxx
index ef55f54..24bae09 100644
--- a/lib/cpExtensions/Visualization/ImageSliceActors.cxx
+++ b/lib/cpExtensions/Visualization/ImageSliceActors.cxx
@@ -1,15 +1,30 @@
 #include <cpExtensions/Visualization/ImageSliceActors.h>
 
+#include <cstring>
+#include <sstream>
+
 #include <vtkAlgorithmOutput.h>
+#include <vtkCamera.h>
 #include <vtkCellArray.h>
 #include <vtkImageData.h>
-#include <vtkInformation.h>
-#include <vtkPlane.h>
+#include <vtkImageProperty.h>
 #include <vtkPoints.h>
 #include <vtkProperty.h>
-#include <vtkStreamingDemandDrivenPipeline.h>
+#include <vtkRenderer.h>
+#include <vtkRendererCollection.h>
+#include <vtkRenderWindow.h>
+#include <vtkRenderWindowInteractor.h>
 #include <vtkTextProperty.h>
 
+// -------------------------------------------------------------------------
+double cpExtensions::Visualization::ImageSliceActors::
+m_PlaneColors[ 3 ][ 3 ] =
+{
+  { 1, 0, 0 },
+  { 0, 1, 0 },
+  { 0, 0, 1 }
+};
+
 // -------------------------------------------------------------------------
 cpExtensions::Visualization::ImageSliceActors*
 cpExtensions::Visualization::ImageSliceActors::
@@ -20,24 +35,70 @@ New( )
 
 // -------------------------------------------------------------------------
 void cpExtensions::Visualization::ImageSliceActors::
-AddInputConnection( vtkAlgorithmOutput* aout, int axis )
+SetAxis( int axis )
 {
-  vtkSmartPointer< vtkImageSliceMapper > mapper =
-    vtkSmartPointer< vtkImageSliceMapper >::New( );
-  this->SliceMappers.push_back( mapper );
-  mapper->SetInputConnection( aout );
-  this->_ConfigureNewInput( axis );
+  this->m_ImageMapper->SetOrientation( axis );
+  this->m_BlenderMapper->SetOrientation( axis );
+  this->m_ImageMapper->Update( );
+  this->m_BlenderMapper->Update( );
+  this->SetSliceNumber( this->GetSliceNumberMinValue( ) );
+  this->m_ImageActor->Modified( );
+  this->m_BlenderActor->Modified( );
+  this->Modified( );
 }
 
 // -------------------------------------------------------------------------
 void cpExtensions::Visualization::ImageSliceActors::
-AddInputData( vtkImageData* data, int axis )
+SetInputConnection( vtkAlgorithmOutput* aout )
 {
-  vtkSmartPointer< vtkImageSliceMapper > mapper =
-    vtkSmartPointer< vtkImageSliceMapper >::New( );
-  this->SliceMappers.push_back( mapper );
-  mapper->SetInputData( data );
-  this->_ConfigureNewInput( axis );
+  // Get input vtkImageData
+  if( aout == NULL )
+    return;
+
+  // Create mapper and actors
+  this->m_ImageMapper->SetInputConnection( aout );
+  this->_ConfigureInputImage( );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+SetInputImage( vtkImageData* data )
+{
+  // Get input vtkImageData
+  if( data == NULL )
+    return;
+
+  // Create mapper and actors
+  this->m_ImageMapper->SetInputData( data );
+  this->_ConfigureInputImage( );
+}
+
+// -------------------------------------------------------------------------
+int cpExtensions::Visualization::ImageSliceActors::
+AddBinaryConnection(
+  vtkAlgorithmOutput* aout,
+  const double& r, const double& g, const double& b
+  )
+{
+  if( aout == NULL )
+    return( -1 );
+  this->m_Blender->AddInputConnection( aout );
+  this->_ConfigureBinaryImage( r, g, b );
+  return( this->m_Blender->GetNumberOfInputs( ) - 1 );
+}
+
+// -------------------------------------------------------------------------
+int cpExtensions::Visualization::ImageSliceActors::
+AddBinaryImage(
+  vtkImageData* data,
+  const double& r, const double& g, const double& b
+  )
+{
+  if( data == NULL )
+    return( -1 );
+  this->m_Blender->AddInputData( data );
+  this->_ConfigureBinaryImage( r, g, b );
+  return( this->m_Blender->GetNumberOfInputs( ) - 1 );
 }
 
 // -------------------------------------------------------------------------
@@ -47,23 +108,100 @@ Clear( )
   // Unbind from container
   this->RemoveAllItems( );
 
-  // Delete all images
-  this->SliceMappers.clear( );
-  this->ImageActors.clear( );
+  // Filters and mappers
+  this->m_ImageMapper   = vtkSmartPointer< vtkImageSliceMapper >::New( );
+  this->m_ImageActor    = vtkSmartPointer< vtkImageActor >::New( );
+  this->m_Blender       = vtkSmartPointer< TBlender >::New( );
+  this->m_BlenderMapper = vtkSmartPointer< vtkImageSliceMapper >::New( );
+  this->m_BlenderLUT    = vtkSmartPointer< vtkLookupTable >::New( );
+  this->m_BlenderActor  = vtkSmartPointer< vtkImageActor >::New( );
+
+  this->m_ImageActor->SetMapper( this->m_ImageMapper );
+  this->m_BlenderMapper->
+    SetInputConnection( this->m_Blender->GetOutputPort( ) );
+
+  this->m_BlenderLUT->SetNumberOfTableValues( 1 );
+  this->m_BlenderLUT->SetTableRange( 0, 1 );
+  this->m_BlenderLUT->SetTableValue( 0, 0, 0, 0, 0 );
+  this->m_BlenderLUT->Build( );
+
+  this->m_BlenderActor->SetMapper( this->m_BlenderMapper );
+  this->m_BlenderActor->GetProperty( )->SetLookupTable( this->m_BlenderLUT );
+  this->m_BlenderActor->GetProperty( )->UseLookupTableScalarRangeOn( );
+
+  // White cursor
+  vtkSmartPointer< vtkPoints > cursor_points =
+    vtkSmartPointer< vtkPoints >::New( );
+  vtkSmartPointer< vtkCellArray > cursor_lines =
+    vtkSmartPointer< vtkCellArray >::New( );
+  cursor_points->InsertNextPoint( 0, 0, 0 );
+  cursor_points->InsertNextPoint( 0, 0, 0 );
+  cursor_points->InsertNextPoint( 0, 0, 0 );
+  cursor_points->InsertNextPoint( 0, 0, 0 );
+  cursor_lines->InsertNextCell( 2 );
+  cursor_lines->InsertCellPoint( 0 );
+  cursor_lines->InsertCellPoint( 1 );
+  cursor_lines->InsertNextCell( 2 );
+  cursor_lines->InsertCellPoint( 2 );
+  cursor_lines->InsertCellPoint( 3 );
+
+  this->m_Cursor = vtkSmartPointer< vtkPolyData >::New( );
+  this->m_CursorMapper = vtkSmartPointer< vtkPolyDataMapper >::New( );
+  this->m_CursorActor = vtkSmartPointer< vtkActor >::New( );
 
-  // Reconfigure unique objects
-  this->PlaneSource = vtkSmartPointer< vtkPolyData >::New( );
-  this->PlaneMapper = vtkSmartPointer< vtkPolyDataMapper >::New( );
-  this->TextActor   = vtkSmartPointer< vtkTextActor >::New( );
-  this->PlaneActor  = vtkSmartPointer< vtkActor >::New( );
-  this->TextBuffer[ 0 ] = '\0';
+  this->m_Cursor->SetPoints( cursor_points );
+  this->m_Cursor->SetLines( cursor_lines );
+  this->m_CursorMapper->SetInputData( this->m_Cursor );
+  this->m_CursorActor->SetMapper( this->m_CursorMapper );
+  this->m_CursorActor->GetProperty( )->SetColor( 1, 1, 0 );
+  this->m_CursorActor->GetProperty( )->SetLineWidth( 2 );
+
+  // Plane intersections
+  this->m_Axis1       = vtkSmartPointer< vtkPolyData >::New( );
+  this->m_Axis1Mapper = vtkSmartPointer< vtkPolyDataMapper >::New( );
+  this->m_Axis1Actor  = vtkSmartPointer< vtkActor >::New( );
+
+  vtkSmartPointer< vtkPoints > h_points =
+    vtkSmartPointer< vtkPoints >::New( );
+  vtkSmartPointer< vtkCellArray > h_lines =
+    vtkSmartPointer< vtkCellArray >::New( );
+  h_points->InsertNextPoint( 0, 0, 0 );
+  h_points->InsertNextPoint( 0, 0, 0 );
+  h_lines->InsertNextCell( 2 );
+  h_lines->InsertCellPoint( 0 );
+  h_lines->InsertCellPoint( 1 );
+  this->m_Axis1->SetPoints( h_points );
+  this->m_Axis1->SetLines( h_lines );
+  this->m_Axis1Mapper->SetInputData( this->m_Axis1 );
+  this->m_Axis1Actor->SetMapper( this->m_Axis1Mapper );
+
+  this->m_Axis2       = vtkSmartPointer< vtkPolyData >::New( );
+  this->m_Axis2Mapper = vtkSmartPointer< vtkPolyDataMapper >::New( );
+  this->m_Axis2Actor  = vtkSmartPointer< vtkActor >::New( );
+
+  vtkSmartPointer< vtkPoints > v_points =
+    vtkSmartPointer< vtkPoints >::New( );
+  vtkSmartPointer< vtkCellArray > v_lines =
+    vtkSmartPointer< vtkCellArray >::New( );
+  v_points->InsertNextPoint( 0, 0, 0 );
+  v_points->InsertNextPoint( 0, 0, 0 );
+  v_lines->InsertNextCell( 2 );
+  v_lines->InsertCellPoint( 0 );
+  v_lines->InsertCellPoint( 1 );
+  this->m_Axis2->SetPoints( v_points );
+  this->m_Axis2->SetLines( v_lines );
+  this->m_Axis2Mapper->SetInputData( this->m_Axis2 );
+  this->m_Axis2Actor->SetMapper( this->m_Axis2Mapper );
+
+  // Plane
+  this->m_Plane       = vtkSmartPointer< vtkPolyData >::New( );
+  this->m_PlaneMapper = vtkSmartPointer< vtkPolyDataMapper >::New( );
+  this->m_PlaneActor  = vtkSmartPointer< vtkActor >::New( );
 
-  // Unique objects configuration
   vtkSmartPointer< vtkPoints > plane_points =
     vtkSmartPointer< vtkPoints >::New( );
   vtkSmartPointer< vtkCellArray > plane_lines =
     vtkSmartPointer< vtkCellArray >::New( );
-
   plane_points->InsertNextPoint( 0, 0, 0 );
   plane_points->InsertNextPoint( 0, 1, 0 );
   plane_points->InsertNextPoint( 1, 1, 0 );
@@ -74,15 +212,18 @@ Clear( )
   plane_lines->InsertCellPoint( 2 );
   plane_lines->InsertCellPoint( 3 );
   plane_lines->InsertCellPoint( 0 );
-  this->PlaneSource->SetPoints( plane_points );
-  this->PlaneSource->SetLines( plane_lines );
+  this->m_Plane->SetPoints( plane_points );
+  this->m_Plane->SetLines( plane_lines );
 
-  this->PlaneMapper->SetInputData( this->PlaneSource );
-  this->PlaneActor->SetMapper( this->PlaneMapper );
+  this->m_PlaneMapper->SetInputData( this->m_Plane );
+  this->m_PlaneActor->SetMapper( this->m_PlaneMapper );
 
-  this->TextActor->SetTextScaleModeToNone( );
-  vtkTextProperty* textprop = this->TextActor->GetTextProperty( );
-  textprop->SetColor( 1, 1, 1 );
+  // Text actor
+  this->m_TextActor = vtkSmartPointer< vtkTextActor >::New( );
+  this->m_TextBuffer[ 0 ] = '\0';
+  this->m_TextActor->SetTextScaleModeToNone( );
+  vtkTextProperty* textprop = this->m_TextActor->GetTextProperty( );
+  textprop->SetColor( 1, 1, 0 );
   textprop->SetFontFamilyToCourier( );
   textprop->SetFontSize( 18 );
   textprop->BoldOff( );
@@ -90,75 +231,222 @@ Clear( )
   textprop->ShadowOff( );
   textprop->SetJustificationToLeft( );
   textprop->SetVerticalJustificationToBottom( );
-  vtkCoordinate* coord = this->TextActor->GetPositionCoordinate( );
+  vtkCoordinate* coord = this->m_TextActor->GetPositionCoordinate( );
   coord->SetCoordinateSystemToNormalizedViewport( );
   coord->SetValue( 0.01, 0.01 );
 }
 
 // -------------------------------------------------------------------------
-unsigned int cpExtensions::Visualization::ImageSliceActors::
-GetNumberOfImageActors( ) const
+void cpExtensions::Visualization::ImageSliceActors::
+AssociateSlice( Self* slice )
 {
-  return( this->ImageActors.size( ) );
+  this->m_AssociatedSlices.push_back( slice );
+  this->Modified( );
 }
 
 // -------------------------------------------------------------------------
-vtkImageActor* cpExtensions::Visualization::ImageSliceActors::
-GetImageActor( unsigned int id )
+vtkInteractorStyle* cpExtensions::Visualization::ImageSliceActors::
+GetStyle( )
 {
-  if( id < this->ImageActors.size( ) )
-    return( this->ImageActors[ id ] );
+  return( this->m_Style.GetPointer( ) );
+}
+
+// -------------------------------------------------------------------------
+const vtkInteractorStyle* cpExtensions::Visualization::ImageSliceActors::
+GetStyle( ) const
+{
+  return( this->m_Style.GetPointer( ) );
+}
+
+// -------------------------------------------------------------------------
+vtkImageData* cpExtensions::Visualization::ImageSliceActors::
+GetInputImage( )
+{
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
+    return( this->m_ImageMapper->GetInput( ) );
   else
     return( NULL );
 }
 
 // -------------------------------------------------------------------------
-const vtkImageActor* cpExtensions::Visualization::ImageSliceActors::
-GetImageActor( unsigned int id ) const
+const vtkImageData* cpExtensions::Visualization::ImageSliceActors::
+GetInputImage( ) const
 {
-  if( id < this->ImageActors.size( ) )
-    return( this->ImageActors[ id ] );
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
+    return( this->m_ImageMapper->GetInput( ) );
   else
     return( NULL );
 }
 
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+PushActorsInto( vtkRenderWindow* window, bool force_style )
+{
+  this->m_Window = window;
+  if( window == NULL )
+    return;
+  vtkRenderWindowInteractor* rwi = window->GetInteractor( );
+  vtkRenderer* renderer = window->GetRenderers( )->GetFirstRenderer( );
+  if( rwi == NULL || renderer == NULL )
+    return;
+
+  // Update style
+  if( this->m_Style.GetPointer( ) != NULL && force_style )
+    rwi->SetInteractorStyle( this->m_Style );
+
+  // Update actors
+  renderer->AddViewProp( this->m_ImageActor );
+  renderer->AddViewProp( this->m_BlenderActor );
+  if( force_style )
+  {
+    renderer->AddViewProp( this->m_CursorActor );
+    renderer->AddViewProp( this->m_PlaneActor );
+    renderer->AddViewProp( this->m_TextActor );
+    renderer->AddViewProp( this->m_Axis1Actor );
+    renderer->AddViewProp( this->m_Axis2Actor );
+
+  } // fi
+
+  // Configure camera
+  vtkCamera* camera = renderer->GetActiveCamera( );
+  if( camera != NULL && force_style )
+  {
+    // Parallel projections are better when displaying 2D images
+    int axis = this->GetAxis( );
+    camera->ParallelProjectionOn( );
+    camera->SetFocalPoint( double( 0 ), double( 0 ), double( 0 ) );
+    if( axis == 0 )
+    {
+      camera->SetPosition( double( 1 ), double( 0 ), double( 0 ) );
+      camera->SetViewUp  ( double( 0 ), double( 0 ), double( 1 ) );
+    }
+    else if( axis == 1 )
+    {
+      camera->SetPosition( double( 0 ), double( -1 ), double( 0 ) );
+      camera->SetViewUp  ( double( 0 ), double(  0 ), double( 1 ) );
+    }
+    else // if( axis == 2 )
+    {
+      camera->SetPosition( double( 0 ), double(  0 ), double( -1 ) );
+      camera->SetViewUp  ( double( 0 ), double( -1 ), double(  0 ) );
+
+    } // fi
+
+  } // fi
+  renderer->ResetCamera( );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+PopActorsFrom( vtkRenderWindow* window )
+{
+  vtkRenderWindowInteractor* rwi = window->GetInteractor( );
+  vtkRenderer* renderer = window->GetRenderers( )->GetFirstRenderer( );
+  if( renderer != NULL )
+  {
+    renderer->RemoveViewProp( this->m_ImageActor );
+    renderer->RemoveViewProp( this->m_BlenderActor );
+    renderer->RemoveViewProp( this->m_CursorActor );
+    renderer->RemoveViewProp( this->m_PlaneActor );
+    renderer->RemoveViewProp( this->m_TextActor );
+    renderer->RemoveViewProp( this->m_Axis1Actor );
+    renderer->RemoveViewProp( this->m_Axis2Actor );
+
+  } // fi
+}
+
+// -------------------------------------------------------------------------
+unsigned int cpExtensions::Visualization::ImageSliceActors::
+GetNumberOfImages( ) const
+{
+  return( this->m_Blender->GetNumberOfInputs( ) );
+}
+
+// -------------------------------------------------------------------------
+vtkImageActor* cpExtensions::Visualization::ImageSliceActors::
+GetImageActor( )
+{
+  return( this->m_ImageActor );
+}
+
+// -------------------------------------------------------------------------
+const vtkImageActor* cpExtensions::Visualization::ImageSliceActors::
+GetImageActor( ) const
+{
+  return( this->m_ImageActor );
+}
+
+// -------------------------------------------------------------------------
+vtkImageActor* cpExtensions::Visualization::ImageSliceActors::
+GetBinaryActor( )
+{
+  return( this->m_BlenderActor );
+}
+
+// -------------------------------------------------------------------------
+const vtkImageActor* cpExtensions::Visualization::ImageSliceActors::
+GetBinaryActor( ) const
+{
+  return( this->m_BlenderActor );
+}
+
 // -------------------------------------------------------------------------
 vtkTextActor* cpExtensions::Visualization::ImageSliceActors::
 GetTextActor( )
 {
-  return( this->TextActor );
+  return( this->m_TextActor );
 }
 
 // -------------------------------------------------------------------------
 const vtkTextActor* cpExtensions::Visualization::ImageSliceActors::
 GetTextActor( ) const
 {
-  return( this->TextActor );
+  return( this->m_TextActor );
 }
 
 // -------------------------------------------------------------------------
 vtkActor* cpExtensions::Visualization::ImageSliceActors::
 GetPlaneActor( )
 {
-  return( this->PlaneActor );
+  return( this->m_PlaneActor );
 }
 
 // -------------------------------------------------------------------------
 const vtkActor* cpExtensions::Visualization::ImageSliceActors::
 GetPlaneActor( ) const
 {
-  return( this->PlaneActor );
+  return( this->m_PlaneActor );
+}
+
+// -------------------------------------------------------------------------
+vtkPlane* cpExtensions::Visualization::ImageSliceActors::
+GetPlaneFunction( )
+{
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
+    return( this->m_ImageMapper->GetSlicePlane( ) );
+  else
+    return( NULL );
+}
+
+// -------------------------------------------------------------------------
+const vtkPlane* cpExtensions::Visualization::ImageSliceActors::
+GetPlaneFunction( ) const
+{
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
+    return( this->m_ImageMapper->GetSlicePlane( ) );
+  else
+    return( NULL );
 }
 
 // -------------------------------------------------------------------------
 void cpExtensions::Visualization::ImageSliceActors::
 SetInterpolate( bool v )
 {
-  if( this->Interpolate != v )
+  if( this->m_Interpolate != v )
   {
-    for( unsigned int i = 0; i < this->ImageActors.size( ); ++i )
-      this->ImageActors[ i ]->SetInterpolate( v );
-    this->Interpolate = v;
+    this->m_ImageActor->SetInterpolate( v );
+    this->m_BlenderActor->SetInterpolate( v );
+    this->m_Interpolate = v;
     this->Modified( );
 
   } // fi
@@ -182,8 +470,8 @@ InterpolateOff( )
 double* cpExtensions::Visualization::ImageSliceActors::
 GetDisplayBounds( ) const
 {
-  if( this->ImageActors.size( ) > 0 )
-    return( this->ImageActors[ 0 ]->GetDisplayBounds( ) );
+  if( this->m_ImageActor.GetPointer( ) != NULL )
+    return( this->m_ImageActor->GetDisplayBounds( ) );
   else
     return( NULL );
 }
@@ -192,21 +480,258 @@ GetDisplayBounds( ) const
 void cpExtensions::Visualization::ImageSliceActors::
 GetDisplayBounds( double bounds[ 6 ] ) const
 {
-  if( this->ImageActors.size( ) == 0 )
+  if( this->m_ImageActor.GetPointer( ) == NULL )
   {
-    bounds[ 0 ] = bounds[ 2 ] = bounds[ 4 ] = double( -1 );
+    bounds[ 0 ] = bounds[ 2 ] = bounds[ 4 ] = double(  0 );
     bounds[ 1 ] = bounds[ 3 ] = bounds[ 5 ] = double( -1 );
   }
   else
-    this->ImageActors[ 0 ]->GetDisplayBounds( bounds );
+    this->m_ImageActor->GetDisplayBounds( bounds );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+ResetCursor( )
+{
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
+  {
+    double pos[] =
+      {
+        this->m_VisibleBounds[ 0 ],
+        this->m_VisibleBounds[ 2 ],
+        this->m_VisibleBounds[ 4 ]
+      };
+    this->SetCursor( pos );
+  }
+  else
+  {
+    vtkPoints* points = this->m_Cursor->GetPoints( );
+    points->SetPoint( 0, 0, 0, 0 );
+    points->SetPoint( 1, 0, 0, 0 );
+    points->SetPoint( 2, 0, 0, 0 );
+    points->SetPoint( 3, 0, 0, 0 );
+    this->m_Cursor->Modified( );
+    this->m_CursorMapper->Modified( );
+    this->m_CursorActor->Modified( );
+
+  } // fi
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+SetCursor( double pos[ 3 ] )
+{
+  if( this->m_ImageMapper.GetPointer( ) == NULL )
+    return;
+
+  // Get ordered axes
+  int a0 = this->GetAxis( );
+  int a1 = ( a0 + 1 ) % 3;
+  int a2 = ( a0 + 2 ) % 3;
+  int ma0 = a0 << 1;
+  int ma1 = a1 << 1;
+  int ma2 = a2 << 1;
+
+  // Update cross
+  double* bounds = this->m_VisibleBounds;
+  double p0[ 3 ], p1[ 3 ], p2[ 3 ], p3[ 3 ];
+
+  p0[ a2 ] = p1[ a2 ] = pos[ a2 ];
+  p2[ a1 ] = p3[ a1 ] = pos[ a1 ];
+  p0[ a0 ] = p1[ a0 ] = p2[ a0 ] = p3[ a0 ] = bounds[ ma0 ];
+  p0[ a1 ] = bounds[ ma1 ];
+  p1[ a1 ] = bounds[ ma1 + 1 ];
+  p2[ a2 ] = bounds[ ma2 ];
+  p3[ a2 ] = bounds[ ma2 + 1 ];
+
+  vtkPoints* points = this->m_Cursor->GetPoints( );
+  points->SetPoint( 0, p0 );
+  points->SetPoint( 1, p1 );
+  points->SetPoint( 2, p2 );
+  points->SetPoint( 3, p3 );
+  this->m_Cursor->Modified( );
+  this->m_CursorMapper->Modified( );
+  this->m_CursorActor->Modified( );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+ResetAxesCursor( )
+{
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
+  {
+    double pos[] =
+      {
+        this->m_VisibleBounds[ 0 ],
+        this->m_VisibleBounds[ 2 ],
+        this->m_VisibleBounds[ 4 ]
+      };
+    this->SetAxesCursor( pos );
+  }
+  else
+  {
+    vtkPoints* points = this->m_Axis1->GetPoints( );
+    points->SetPoint( 0, 0, 0, 0 );
+    points->SetPoint( 1, 0, 0, 0 );
+    this->m_Axis1->Modified( );
+    this->m_Axis1Mapper->Modified( );
+    this->m_Axis1Actor->Modified( );
+
+    points = this->m_Axis2->GetPoints( );
+    points->SetPoint( 0, 0, 0, 0 );
+    points->SetPoint( 1, 0, 0, 0 );
+    this->m_Axis2->Modified( );
+    this->m_Axis2Mapper->Modified( );
+    this->m_Axis2Actor->Modified( );
+
+  } // fi
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+SetAxesCursor( double pos[ 3 ] )
+{
+  if( this->m_ImageMapper.GetPointer( ) == NULL )
+    return;
+
+  // Get ordered axes
+  int a0 = this->GetAxis( );
+  int a1 = ( a0 + 1 ) % 3;
+  int a2 = ( a0 + 2 ) % 3;
+  int ma0 = a0 << 1;
+  int ma1 = a1 << 1;
+  int ma2 = a2 << 1;
+
+  // Update cross
+  double* bounds = this->m_VisibleBounds;
+  double p0[ 3 ], p1[ 3 ], p2[ 3 ], p3[ 3 ];
+
+  p0[ a2 ] = p1[ a2 ] = pos[ a2 ];
+  p2[ a1 ] = p3[ a1 ] = pos[ a1 ];
+  p0[ a0 ] = p1[ a0 ] = p2[ a0 ] = p3[ a0 ] = bounds[ ma0 ];
+  p0[ a1 ] = bounds[ ma1 ];
+  p1[ a1 ] = bounds[ ma1 + 1 ];
+  p2[ a2 ] = bounds[ ma2 ];
+  p3[ a2 ] = bounds[ ma2 + 1 ];
+
+  vtkPoints* points1 = this->m_Axis1->GetPoints( );
+  points1->SetPoint( 0, p2 );
+  points1->SetPoint( 1, p3 );
+
+  vtkPoints* points2 = this->m_Axis2->GetPoints( );
+  points2->SetPoint( 0, p0 );
+  points2->SetPoint( 1, p1 );
+
+  this->m_Axis1->Modified( );
+  this->m_Axis1Mapper->Modified( );
+  this->m_Axis1Actor->Modified( );
+
+  this->m_Axis2->Modified( );
+  this->m_Axis2Mapper->Modified( );
+  this->m_Axis2Actor->Modified( );
+}
+
+// -------------------------------------------------------------------------
+double cpExtensions::Visualization::ImageSliceActors::
+GetMinWindow( ) const
+{
+  return( this->m_WLRange[ 0 ] );
+}
+
+// -------------------------------------------------------------------------
+double cpExtensions::Visualization::ImageSliceActors::
+GetMaxWindow( ) const
+{
+  return( this->m_WLRange[ 1 ] );
+}
+
+// -------------------------------------------------------------------------
+double cpExtensions::Visualization::ImageSliceActors::
+GetMinLevel( ) const
+{
+  return( this->m_WLRange[ 2 ] );
+}
+
+// -------------------------------------------------------------------------
+double cpExtensions::Visualization::ImageSliceActors::
+GetMaxLevel( ) const
+{
+  return( this->m_WLRange[ 3 ] );
+}
+
+// -------------------------------------------------------------------------
+double cpExtensions::Visualization::ImageSliceActors::
+GetWindow( ) const
+{
+  if( this->m_ImageActor.GetPointer( ) != NULL )
+    return( this->m_ImageActor->GetProperty( )->GetColorWindow( ) );
+  else
+    return( double( 0 ) );
+}
+
+// -------------------------------------------------------------------------
+double cpExtensions::Visualization::ImageSliceActors::
+GetLevel( ) const
+{
+  if( this->m_ImageActor.GetPointer( ) != NULL )
+    return( this->m_ImageActor->GetProperty( )->GetColorLevel( ) );
+  else
+    return( double( 0 ) );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+SetWindow( double w )
+{
+  if( this->m_ImageActor.GetPointer( ) == NULL )
+    return;
+  double v = ( w < this->m_WLRange[ 0 ] )? this->m_WLRange[ 0 ]: w;
+  v        = ( v > this->m_WLRange[ 1 ] )? this->m_WLRange[ 1 ]: v;
+  this->m_ImageActor->GetProperty( )->SetColorWindow( v );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+SetLevel( double l )
+{
+  if( this->m_ImageActor.GetPointer( ) == NULL )
+    return;
+  double v = ( l < this->m_WLRange[ 2 ] )? this->m_WLRange[ 2 ]: l;
+  v        = ( v > this->m_WLRange[ 3 ] )? this->m_WLRange[ 3 ]: v;
+  this->m_ImageActor->GetProperty( )->SetColorLevel( v );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+SetWindowLevel( double w, double l )
+{
+  if( this->m_ImageActor.GetPointer( ) == NULL )
+    return;
+  double a = ( w < this->m_WLRange[ 0 ] )? this->m_WLRange[ 0 ]: w;
+  a        = ( a > this->m_WLRange[ 1 ] )? this->m_WLRange[ 1 ]: a;
+  double b = ( l < this->m_WLRange[ 2 ] )? this->m_WLRange[ 2 ]: l;
+  b        = ( b > this->m_WLRange[ 3 ] )? this->m_WLRange[ 3 ]: b;
+  this->m_ImageActor->GetProperty( )->SetColorWindow( a );
+  this->m_ImageActor->GetProperty( )->SetColorLevel( b );
+  this->UpdateText( a, b );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+ResetWindowLevel( )
+{
+  this->SetWindowLevel(
+    this->m_WLRange[ 1 ] * double( 0.5 ),
+    ( this->m_WLRange[ 3 ] + this->m_WLRange[ 2 ] ) * double( 0.5 )
+    );
 }
 
 // -------------------------------------------------------------------------
 int cpExtensions::Visualization::ImageSliceActors::
 GetAxis( ) const
 {
-  if( this->SliceMappers.size( ) > 0 )
-    return( this->SliceMappers[ 0 ]->GetOrientation( ) );
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
+    return( this->m_ImageMapper->GetOrientation( ) );
   else
     return( -1 );
 }
@@ -215,8 +740,8 @@ GetAxis( ) const
 int cpExtensions::Visualization::ImageSliceActors::
 GetSliceNumber( ) const
 {
-  if( this->SliceMappers.size( ) > 0 )
-    return( this->SliceMappers[ 0 ]->GetSliceNumber( ) );
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
+    return( this->m_ImageMapper->GetSliceNumber( ) );
   else
     return( -1 );
 }
@@ -225,8 +750,8 @@ GetSliceNumber( ) const
 int cpExtensions::Visualization::ImageSliceActors::
 GetSliceNumberMinValue( ) const
 {
-  if( this->SliceMappers.size( ) > 0 )
-    return( this->SliceMappers[ 0 ]->GetSliceNumberMinValue( ) );
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
+    return( this->m_ImageMapper->GetSliceNumberMinValue( ) );
   else
     return( -1 );
 }
@@ -235,8 +760,8 @@ GetSliceNumberMinValue( ) const
 int cpExtensions::Visualization::ImageSliceActors::
 GetSliceNumberMaxValue( ) const
 {
-  if( this->SliceMappers.size( ) > 0 )
-    return( this->SliceMappers[ 0 ]->GetSliceNumberMaxValue( ) );
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
+    return( this->m_ImageMapper->GetSliceNumberMaxValue( ) );
   else
     return( -1 );
 }
@@ -245,125 +770,203 @@ GetSliceNumberMaxValue( ) const
 void cpExtensions::Visualization::ImageSliceActors::
 SetSliceNumber( const int& slice )
 {
-  unsigned int nImages = this->SliceMappers.size( );
-  if( nImages == 0 )
+  if( this->m_ImageMapper.GetPointer( ) == NULL )
     return;
 
-  // Change visualization extent
-  for( unsigned int i = 0; i < nImages; ++i )
-  {
-    this->SliceMappers[ i ]->SetSliceNumber( slice );
-    this->SliceMappers[ i ]->Modified( );
-    this->ImageActors[ i ]->Modified( );
-    this->SliceMappers[ i ]->Update( );
-
-  } // rof
-
-  // Compute plane
-  vtkAlgorithm* algo = this->SliceMappers[ 0 ]->GetInputAlgorithm( );
-  vtkInformation* info = algo->GetOutputInformation( 0 );
-  int ext[ 6 ];
-  double ori[ 3 ], spac[ 3 ], pos[ 3 ];
-  info->Get( vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT( ), ext );
-  info->Get( vtkDataObject::ORIGIN( ), ori );
-  info->Get( vtkDataObject::SPACING( ), spac );
-  this->SliceMappers[ 0 ]->GetSlicePlane( )->GetOrigin( pos );
-
-  // Prevent obscuring voxels by offsetting the plane geometry
-  double xbnds[ ] =
-    {
-      ori[ 0 ] + ( spac[ 0 ] * double( ext[ 0 ] ) ),
-      ori[ 0 ] + ( spac[ 0 ] * double( ext[ 1 ] ) )
-    };
-  double ybnds[ ] =
-    {
-      ori[ 1 ] + ( spac[ 1 ] * double( ext[ 2 ] ) ),
-      ori[ 1 ] + ( spac[ 1 ] * double( ext[ 3 ] ) )
-    };
-  double zbnds[ ] =
-    {
-      ori[ 2 ] + ( spac[ 2 ] * double( ext[ 4 ] ) ),
-      ori[ 2 ] + ( spac[ 2 ] * double( ext[ 5 ] ) )
-    };
+  int axis = this->GetAxis( );
+  double prev_pos = this->m_VisibleBounds[ axis << 1 ];
 
-  if( spac[ 0 ] < double( 0 ) )
-  {
-    double t = xbnds[ 0 ];
-    xbnds[ 0 ] = xbnds[ 1 ];
-    xbnds[ 1 ] = t;
+  // Update mappers and display bounds
+  this->m_ImageMapper->SetSliceNumber( slice );
+  this->m_BlenderMapper->SetSliceNumber( slice );
+  this->m_ImageMapper->Modified( );
+  this->m_BlenderMapper->Modified( );
+  this->m_ImageActor->Modified( );
+  this->m_BlenderActor->Modified( );
 
-  } // fi
-  if( spac[ 1 ] < double( 0 ) )
-  {
-    double t = ybnds[ 0 ];
-    ybnds[ 0 ] = ybnds[ 1 ];
-    ybnds[ 1 ] = t;
+  // Update display extent (this isn't done automatically)
+  this->m_ImageMapper->GetInput( )->GetExtent( this->m_VisibleExtent );
+  this->m_VisibleExtent[ axis << 1 ] = slice;
+  this->m_VisibleExtent[ ( axis << 1 ) + 1 ] = slice;
+  this->m_ImageActor->SetDisplayExtent( this->m_VisibleExtent );
 
-  } // fi
-  if( spac[ 2 ] < double( 0 ) )
-  {
-    double t = zbnds[ 0 ];
-    zbnds[ 0 ] = zbnds[ 1 ];
-    zbnds[ 1 ] = t;
+  // Prepare plane data
+  this->m_ImageMapper->GetBounds( this->m_VisibleBounds );
+  double x0[][ 3 ] =
+    {
+      {
+        this->m_VisibleBounds[ 0 ],
+        this->m_VisibleBounds[ 2 ],
+        this->m_VisibleBounds[ 4 ]
+      },
+      {
+        this->m_VisibleBounds[ 1 ],
+        this->m_VisibleBounds[ 3 ],
+        this->m_VisibleBounds[ 5 ]
+      }
+    };
+  double p0[ 2 ][ 3 ];
 
-  } // fi
+  vtkPlane* plane = this->m_ImageMapper->GetSlicePlane( );
+  plane->GeneralizedProjectPoint( x0[ 0 ], p0[ 0 ] );
+  plane->GeneralizedProjectPoint( x0[ 1 ], p0[ 1 ] );
 
-  int axis = this->SliceMappers[ 0 ]->GetOrientation( );
-  this->PlaneActor->GetProperty( )->SetRepresentationToWireframe( );
-  this->PlaneActor->GetProperty( )->SetLineWidth( 2 );
-  vtkPoints* plane_points = this->PlaneSource->GetPoints( );
-  if( axis == 0 ) // YZ, x-normal
+  this->m_VisibleBounds[ 0 ] = p0[ 0 ][ 0 ];
+  this->m_VisibleBounds[ 1 ] = p0[ 1 ][ 0 ];
+  this->m_VisibleBounds[ 2 ] = p0[ 0 ][ 1 ];
+  this->m_VisibleBounds[ 3 ] = p0[ 1 ][ 1 ];
+  this->m_VisibleBounds[ 4 ] = p0[ 0 ][ 2 ];
+  this->m_VisibleBounds[ 5 ] = p0[ 1 ][ 2 ];
+  double* bnds = this->m_VisibleBounds;
+
+  // Configure visualization and implicit plane orientation
+  this->m_PlaneActor->GetProperty( )->SetRepresentationToWireframe( );
+  this->m_PlaneActor->GetProperty( )->SetLineWidth( 3 );
+  vtkPoints* plane_points = this->m_Plane->GetPoints( );
+  plane_points->SetPoint( 0, bnds[ 0 ], bnds[ 2 ], bnds[ 4 ] );
+  plane_points->SetPoint( 2, bnds[ 1 ], bnds[ 3 ], bnds[ 5 ] );
+  if( axis == 0 || axis == 2 ) // YZ, x-normal
   {
-    plane_points->SetPoint( 0, pos[ 0 ], ybnds[ 0 ], zbnds[ 0 ] );
-    plane_points->SetPoint( 1, pos[ 0 ], ybnds[ 1 ], zbnds[ 0 ] );
-    plane_points->SetPoint( 2, pos[ 0 ], ybnds[ 1 ], zbnds[ 1 ] );
-    plane_points->SetPoint( 3, pos[ 0 ], ybnds[ 0 ], zbnds[ 1 ] );
-    this->PlaneActor->GetProperty( )->SetColor( 1, 0, 0 );
+    plane_points->SetPoint( 1, bnds[ 1 ], bnds[ 2 ], bnds[ 5 ] );
+    plane_points->SetPoint( 3, bnds[ 0 ], bnds[ 3 ], bnds[ 4 ] );
   }
   else if( axis == 1 ) // ZX, y-normal
   {
-    plane_points->SetPoint( 0, xbnds[ 0 ], pos[ 1 ], zbnds[ 0 ] );
-    plane_points->SetPoint( 1, xbnds[ 0 ], pos[ 1 ], zbnds[ 1 ] );
-    plane_points->SetPoint( 2, xbnds[ 1 ], pos[ 1 ], zbnds[ 1 ] );
-    plane_points->SetPoint( 3, xbnds[ 1 ], pos[ 1 ], zbnds[ 0 ] );
-    this->PlaneActor->GetProperty( )->SetColor( 0, 1, 0 );
-  }
-  else // XY, z-normal
-  {
-    plane_points->SetPoint( 0, xbnds[ 0 ], ybnds[ 0 ], pos[ 2 ] );
-    plane_points->SetPoint( 1, xbnds[ 1 ], ybnds[ 0 ], pos[ 2 ] );
-    plane_points->SetPoint( 2, xbnds[ 1 ], ybnds[ 1 ], pos[ 2 ] );
-    plane_points->SetPoint( 3, xbnds[ 0 ], ybnds[ 1 ], pos[ 2 ] );
-    this->PlaneActor->GetProperty( )->SetColor( 0, 0, 1 );
+    plane_points->SetPoint( 1, bnds[ 0 ], bnds[ 2 ], bnds[ 5 ] );
+    plane_points->SetPoint( 3, bnds[ 1 ], bnds[ 3 ], bnds[ 4 ] );
 
   } // fi
-  this->PlaneSource->Modified( );
-  this->PlaneMapper->Modified( );
-  this->PlaneActor->Modified( );
+
+  // Set plane colors
+  this->m_PlaneActor->GetProperty( )->
+    SetColor( this->m_PlaneColors[ axis ] );
+  this->m_Axis1Actor->GetProperty( )->
+    SetColor( this->m_PlaneColors[ ( axis + 1 ) % 3 ] );
+  this->m_Axis2Actor->GetProperty( )->
+    SetColor( this->m_PlaneColors[ ( axis + 2 ) % 3 ] );
+
+  this->m_Plane->Modified( );
+  this->m_PlaneMapper->Modified( );
+  this->m_PlaneActor->Modified( );
+
+  this->m_Axis1->Modified( );
+  this->m_Axis1Mapper->Modified( );
+  this->m_Axis1Actor->Modified( );
+
+  this->m_Axis2->Modified( );
+  this->m_Axis2Mapper->Modified( );
+  this->m_Axis2Actor->Modified( );
+
+  // Update text
   this->UpdateText( );
+
+  // Update camera position
+  if( this->m_Window == NULL )
+    return;
+  vtkRenderer* renderer =
+    this->m_Window->GetRenderers( )->GetFirstRenderer( );
+  if( renderer == NULL )
+    return;
+  vtkCamera* camera = renderer->GetActiveCamera( );
+  if( camera == NULL )
+    return;
+  double cam_pos[ 3 ];
+  camera->GetPosition( cam_pos );
+  cam_pos[ axis ] += this->m_VisibleBounds[ axis << 1 ] - prev_pos;
+  camera->SetPosition( cam_pos );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+SetSlice( double* pos )
+{
+  vtkImageData* image = this->GetInputImage( );
+  if( image == NULL )
+    return;
+
+  int ijk[ 3 ];
+  double pcoords[ 3 ];
+  image->ComputeStructuredCoordinates( pos, ijk, pcoords );
+  this->SetSliceNumber( ijk[ this->GetAxis( ) ] );
 }
 
 // -------------------------------------------------------------------------
 void cpExtensions::Visualization::ImageSliceActors::
 UpdateText( )
 {
-  if( this->SliceMappers.size( ) > 0 )
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
   {
     char axis;
-    int axId = this->SliceMappers[ 0 ]->GetOrientation( );
+    int axId = this->m_ImageMapper->GetOrientation( );
     if     ( axId == 0 ) axis = 'X';
     else if( axId == 1 ) axis = 'Y';
     else if( axId == 2 ) axis = 'Z';
 
     std::sprintf(
-      this->TextBuffer, "Axis: %c (%d)",
-      axis, this->SliceMappers[ 0 ]->GetSliceNumber( )
+      this->m_TextBuffer, "Axis: %c (%d)",
+      axis, this->m_ImageMapper->GetSliceNumber( )
       );
   }
   else
-    this->TextBuffer[ 0 ] = '\0';
-  this->TextActor->SetInput( this->TextBuffer );
-  this->TextActor->Modified( );
+    this->m_TextBuffer[ 0 ] = '\0';
+  this->m_TextActor->SetInput( this->m_TextBuffer );
+  this->m_TextActor->Modified( );
+  this->Modified( );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+UpdateText( double pos[ 3 ] )
+{
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
+  {
+    char axis;
+    int axId = this->m_ImageMapper->GetOrientation( );
+    if     ( axId == 0 ) axis = 'X';
+    else if( axId == 1 ) axis = 'Y';
+    else if( axId == 2 ) axis = 'Z';
+    int slice = this->GetSliceNumber( );
+
+    vtkImageData* image = this->GetInputImage( );
+    int ijk[ 3 ];
+    double pcoords[ 3 ];
+    image->ComputeStructuredCoordinates( pos, ijk, pcoords );
+    ijk[ axId ] = slice;
+
+    int ext[ 6 ];
+    image->GetExtent( ext );
+    if(
+      ext[ 0 ] <= ijk[ 0 ] && ijk[ 0 ] <= ext[ 1 ] &&
+      ext[ 2 ] <= ijk[ 1 ] && ijk[ 1 ] <= ext[ 3 ] &&
+      ext[ 4 ] <= ijk[ 2 ] && ijk[ 2 ] <= ext[ 5 ]
+      )
+    {
+      int nScl = image->GetNumberOfScalarComponents( );
+      std::stringstream str;
+      str
+        << "[" << ijk[ 0 ]
+        << "," << ijk[ 1 ]
+        << "," << ijk[ 2 ] << "]=(";
+      str <<
+        image->GetScalarComponentAsFloat( ijk[ 0 ], ijk[ 1 ], ijk[ 2 ], 0 );
+      for( int n = 1; n < nScl; ++n )
+        str
+          << " "
+          << image->GetScalarComponentAsFloat(
+            ijk[ 0 ], ijk[ 1 ], ijk[ 2 ], n
+            );
+      str << ")";
+      std::sprintf(
+        this->m_TextBuffer, "Axis: %c (%d)\nPixel %s",
+        axis, slice, str.str( ).c_str( )
+        );
+
+    } // fi
+  }
+  else
+    this->m_TextBuffer[ 0 ] = '\0';
+  this->m_TextActor->SetInput( this->m_TextBuffer );
+  this->m_TextActor->Modified( );
   this->Modified( );
 }
 
@@ -371,33 +974,62 @@ UpdateText( )
 void cpExtensions::Visualization::ImageSliceActors::
 UpdateText( const double& w, const double& l )
 {
-  if( this->SliceMappers.size( ) > 0 )
+  if( this->m_ImageMapper.GetPointer( ) != NULL )
   {
     char axis;
-    int axId = this->SliceMappers[ 0 ]->GetOrientation( );
+    int axId = this->m_ImageMapper->GetOrientation( );
     if     ( axId == 0 ) axis = 'X';
     else if( axId == 1 ) axis = 'Y';
     else if( axId == 2 ) axis = 'Z';
 
     std::sprintf(
-      this->TextBuffer, "Axis: %c (%d) | W/L (%.2f/%.2f)",
-      axis, this->SliceMappers[ 0 ]->GetSliceNumber( ), w, l
+      this->m_TextBuffer, "Axis: %c (%d)\nW/L (%.2f/%.2f)",
+      axis, this->m_ImageMapper->GetSliceNumber( ), w, l
       );
   }
   else
-    this->TextBuffer[ 0 ] = '\0';
-  this->TextActor->SetInput( this->TextBuffer );
-  this->TextActor->Modified( );
+    this->m_TextBuffer[ 0 ] = '\0';
+  this->m_TextActor->SetInput( this->m_TextBuffer );
+  this->m_TextActor->Modified( );
   this->Modified( );
 }
 
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+Render( )
+{
+  if( this->m_Window == NULL )
+    return;
+  vtkRenderer* renderer =
+    this->m_Window->GetRenderers( )->GetFirstRenderer( );
+  if( renderer == NULL )
+    return;
+  renderer->SetAllocatedRenderTime( 1e-3 );
+  this->m_Window->Render( );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+ResetCamera( )
+{
+  if( this->m_Window == NULL )
+    return;
+  vtkRenderer* renderer =
+    this->m_Window->GetRenderers( )->GetFirstRenderer( );
+  if( renderer == NULL )
+    return;
+  renderer->ResetCamera( );
+}
+
 // -------------------------------------------------------------------------
 cpExtensions::Visualization::ImageSliceActors::
 ImageSliceActors( )
   : Superclass( ),
-    Interpolate( false )
+    m_Window( NULL ),
+    m_Interpolate( false )
 {
   this->Clear( );
+  this->_ConfigureStyle( );
 }
 
 // -------------------------------------------------------------------------
@@ -408,37 +1040,262 @@ cpExtensions::Visualization::ImageSliceActors::
 
 // -------------------------------------------------------------------------
 void cpExtensions::Visualization::ImageSliceActors::
-_ConfigureNewInput( int axis )
+_ConfigureStyle( )
 {
-  unsigned int nImages = this->ImageActors.size( );
+  // Connect this view with a controller
+  this->m_Style = vtkSmartPointer< TStyle >::New( );
+  this->m_Style->AddMouseMoveCommand( Self::_MouseMoveCommand, this );
+  this->m_Style->AddMouseClickCommand( Self::_MouseClickCommand, this );
+  this->m_Style->AddMouseWheelCommand( Self::_MouseWheelCommand, this );
+  this->m_Style->AddKeyCommand( Self::_KeyCommand, this );
+  this->m_Style->AddEnterCommand( Self::_EnterCommand, this );
+  this->m_Style->AddLeaveCommand( Self::_LeaveCommand, this );
+}
 
-  // Configure mapper
-  vtkImageSliceMapper* mapper = this->SliceMappers[ nImages ];
-  if( nImages == 0 )
-    mapper->SetOrientation( axis );
-  else
-    mapper->SetOrientation( this->SliceMappers[ 0 ]->GetOrientation( ) );
-  mapper->Update( );
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+_ConfigureInputImage( )
+{
+  this->m_ImageMapper->SetOrientation( 0 );
+  this->m_ImageMapper->Update( );
 
   // Create actor
-  vtkSmartPointer< vtkImageActor > actor =
-    vtkSmartPointer< vtkImageActor >::New( );
-  this->ImageActors.push_back( actor );
-  actor->SetMapper( mapper );
-  actor->SetInterpolate( this->Interpolate );
-  actor->Modified( );
-
-  if( nImages == 0 )
+  this->m_ImageActor->SetInterpolate( this->m_Interpolate );
+  this->m_ImageActor->Modified( );
+
+  if( this->m_Style.GetPointer( ) != NULL )
+    this->m_Style->AssociateImageActor( this->m_ImageActor );
+  this->AddItem( this->m_ImageActor );
+
+  this->SetSliceNumber( this->GetSliceNumberMinValue( ) );
+  this->ResetCursor( );
+  this->Modified( );
+
+  // Reset cursors
+  this->ResetCursor( );
+  this->ResetAxesCursor( );
+
+  // Update window/level ranges
+  vtkImageData* data = this->GetInputImage( );
+  if( data != NULL )
   {
-    this->AddItem( this->TextActor );
-    this->AddItem( this->PlaneActor );
+    double r[ 2 ];
+    data->GetScalarRange( r );
+    this->m_WLRange[ 0 ] = double( 0 );
+    this->m_WLRange[ 1 ] = r[ 1 ] - r[ 0 ];
+    this->m_WLRange[ 2 ] = r[ 0 ];
+    this->m_WLRange[ 3 ] = r[ 1 ];
+    this->ResetWindowLevel( );
+
+    // Configure blender
+    this->m_BlenderBase = vtkSmartPointer< vtkImageData >::New( );
+    this->m_BlenderBase->ShallowCopy( data );
+    this->m_BlenderBase->AllocateScalars( VTK_UNSIGNED_CHAR, 1 );
+    std::memset(
+      this->m_BlenderBase->GetScalarPointer( ), 0,
+      this->m_BlenderBase->GetActualMemorySize( )
+      );
+    this->m_Blender->AddInputData( this->m_BlenderBase );
 
   } // fi
-  this->AddItem( actor );
+}
 
-  if( nImages > 1 )
-    this->SetSliceNumber( this->GetSliceNumber( ) );
-  this->Modified( );
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+_ConfigureBinaryImage( const double& r, const double& g, const double& b )
+{
+  unsigned int nValues = this->m_BlenderLUT->GetNumberOfTableValues( );
+  this->m_BlenderLUT->SetNumberOfTableValues( nValues + 1 );
+  this->m_BlenderLUT->SetTableRange( 0, nValues );
+  this->m_BlenderLUT->SetTableValue( nValues, r, g, b, 0.5 );
+  this->m_BlenderLUT->Build( );
+
+  this->m_BlenderLUT->Modified( );
+  this->m_Blender->Modified( );
+  this->m_Blender->Update( );
+
+  this->m_BlenderMapper->Modified( );
+  this->m_BlenderActor->Modified( );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+_MouseMoveCommand(
+  void* data, const TStyle::ButtonID& btn, int* idx, double* pos,
+  bool alt, bool ctr, bool sft
+  )
+{
+  ImageSliceActors* actors = reinterpret_cast< ImageSliceActors* >( data );
+  if( actors == NULL )
+    return;
+
+  if( btn == TStyle::ButtonID_None )
+  {
+    // Just show the pixel information
+    actors->SetCursor( pos );
+    actors->UpdateText( pos );
+    actors->Render( );
+  }
+  else if( btn == TStyle::ButtonID_Left )
+  {
+    if( !alt && ctr && !sft )
+    {
+      // Show axes in current renderer
+      actors->SetAxesCursor( pos );
+      actors->Render( );
+
+      // Interactively move slices
+      auto i = actors->m_SlicesCommands.begin( );
+      for( ; i != actors->m_SlicesCommands.end( ); ++i )
+        i->first( pos, actors->GetAxis( ), i->second );
+
+    } // fi
+  }
+  else if( btn == TStyle::ButtonID_Right )
+  {
+    if( !alt && !ctr && sft )
+    {
+      // Change image window level
+      double bounds[ 6 ];
+      actors->m_ImageMapper->GetBounds( bounds );
+
+      int a0 = actors->GetAxis( );
+      int a1 = ( a0 + 1 ) % 3;
+      int a2 = ( a0 + 2 ) % 3;
+      double dx = pos[ a1 ] - actors->m_StartWindowLevelPos[ a1 ];
+      double dy = pos[ a2 ] - actors->m_StartWindowLevelPos[ a2 ];
+      dx /= bounds[ ( a1 << 1 ) + 1 ] - bounds[ a1 << 1 ];
+      dy /= bounds[ ( a2 << 1 ) + 1 ] - bounds[ a2 << 1 ];
+
+      dx *= actors->m_StartWindowLevel[ 0 ];
+      dy *= actors->m_StartWindowLevel[ 1 ];
+      dx += actors->m_StartWindowLevel[ 0 ];
+      dy += actors->m_StartWindowLevel[ 1 ];
+      actors->SetWindowLevel( dx, dy );
+      actors->Render( );
+
+      // Associate objects
+      auto i = actors->m_WindowLevelCommands.begin( );
+      for( ; i != actors->m_WindowLevelCommands.end( ); ++i )
+        i->first( dx, dy, i->second );
+
+    } // fi
+
+  } // fi
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+_MouseClickCommand(
+  void* data, const TStyle::ButtonID& btn, int* idx, double* pos,
+  bool alt, bool ctr, bool sft
+  )
+{
+  ImageSliceActors* actors = reinterpret_cast< ImageSliceActors* >( data );
+  if( actors == NULL )
+    return;
+
+  actors->m_StartWindowLevelPos[ 0 ] = pos[ 0 ];
+  actors->m_StartWindowLevelPos[ 1 ] = pos[ 1 ];
+  actors->m_StartWindowLevelPos[ 2 ] = pos[ 2 ];
+  actors->m_StartWindowLevel[ 0 ] = actors->GetWindow( );
+  actors->m_StartWindowLevel[ 1 ] = actors->GetLevel( );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+_MouseWheelCommand(
+  void* data, const int& dir,
+  bool alt, bool ctr, bool sft
+  )
+{
+  ImageSliceActors* actors = reinterpret_cast< ImageSliceActors* >( data );
+  if( actors == NULL )
+    return;
+
+  if( !alt && !ctr )
+  {
+    int slice = actors->GetSliceNumber( ) + ( dir * ( ( sft )? 10: 1 ) );
+    if( slice < actors->GetSliceNumberMinValue( ) )
+      slice = actors->GetSliceNumberMinValue( );
+    if( slice > actors->GetSliceNumberMaxValue( ) )
+      slice = actors->GetSliceNumberMaxValue( );
+    actors->SetSliceNumber( slice );
+    actors->Render( );
+
+    auto a = actors->m_AssociatedSlices.begin( );
+    for( ; a != actors->m_AssociatedSlices.end( ); ++a )
+      ( *a )->SetSliceNumber( slice );
+
+    // Associate objects
+    auto i = actors->m_RenderCommands.begin( );
+    for( ; i != actors->m_RenderCommands.end( ); ++i )
+      i->first( i->second );
+
+  } // fi
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+_KeyCommand( void* data, const char& key )
+{
+  ImageSliceActors* actors = reinterpret_cast< ImageSliceActors* >( data );
+  if( actors == NULL )
+    return;
+
+  switch( key )
+  {
+  case 'r': case 'R':
+  {
+    actors->ResetCamera( );
+    actors->Render( );
+
+    // Associate objects
+    auto i = actors->m_RenderCommands.begin( );
+    for( ; i != actors->m_RenderCommands.end( ); ++i )
+      i->first( i->second );
+  }
+  break;
+  case 'w': case 'W':
+  {
+    actors->ResetWindowLevel( );
+    actors->Render( );
+
+    // Associate objects
+    auto i = actors->m_RenderCommands.begin( );
+    for( ; i != actors->m_RenderCommands.end( ); ++i )
+      i->first( i->second );
+  }
+  break;
+  default:
+    break;
+  } // hctiws
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+_EnterCommand( void* data )
+{
+  ImageSliceActors* actors = reinterpret_cast< ImageSliceActors* >( data );
+  if( actors == NULL )
+    return;
+
+  actors->ResetCursor( );
+  actors->m_CursorActor->VisibilityOn( );
+  actors->Render( );
+}
+
+// -------------------------------------------------------------------------
+void cpExtensions::Visualization::ImageSliceActors::
+_LeaveCommand( void* data )
+{
+  ImageSliceActors* actors = reinterpret_cast< ImageSliceActors* >( data );
+  if( actors == NULL )
+    return;
+
+  actors->ResetCursor( );
+  actors->m_CursorActor->VisibilityOff( );
+  actors->Render( );
 }
 
 // eof - $RCSfile$