lib/cpInstances/BoundingBox.cxx

   1 #include <cpInstances/BoundingBox.h>
   2 #include <limits>
   3 #include <vtkDataSet.h>
   4
   5 // -------------------------------------------------------------------------
   6 void cpInstances::BoundingBox::
   7 SetDataObject( DataObject* o )
   8 {
   9   auto i = o->GetITK< itk::LightObject >( );
  10   auto v = o->GetVTK< vtkObjectBase >( );
  11   if( v != NULL )      this->SetVTK( v );
  12   else if( i != NULL ) this->SetITK( i );
  13   this->_UpdateVTK( );
  14 }
  15
  16 // -------------------------------------------------------------------------
  17 void cpInstances::BoundingBox::
  18 Copy( Self* other )
  19 {
  20   this->m_Points[ 0 ] = other->m_Points[ 0 ];
  21   this->m_Points[ 1 ] = other->m_Points[ 1 ];
  22   this->Modified( );
  23 }
  24
  25 // -------------------------------------------------------------------------
  26 void cpInstances::BoundingBox::
  27 Blend( Self* other )
  28 {
  29   if( this->m_Points[ 0 ].size( ) < other->m_Points[ 0 ].size( ) )
  30     this->m_Points[ 0 ].resize(
  31       other->m_Points[ 0 ].size( ),
  32       std::numeric_limits< double >::max( )
  33       );
  34   if( this->m_Points[ 1 ].size( ) < other->m_Points[ 1 ].size( ) )
  35     this->m_Points[ 1 ].resize(
  36       other->m_Points[ 1 ].size( ),
  37       -std::numeric_limits< double >::max( )
  38       );
  39   for( unsigned int d = 0; d < this->m_Points[ 0 ].size( ); ++d )
  40     if( other->m_Points[ 0 ][ d ] < this->m_Points[ 0 ][ d ] )
  41       this->m_Points[ 0 ][ d ] = other->m_Points[ 0 ][ d ];
  42   for( unsigned int d = 0; d < this->m_Points[ 1 ].size( ); ++d )
  43     if( other->m_Points[ 1 ][ d ] > this->m_Points[ 1 ][ d ] )
  44       this->m_Points[ 1 ][ d ] = other->m_Points[ 1 ][ d ];
  45   this->Modified( );
  46   this->_UpdateVTK( );
  47 }
  48
  49 // -------------------------------------------------------------------------
  50 cpInstances::BoundingBox::
  51 BoundingBox( )
  52   : Superclass( )
  53 {
  54   this->m_Points[ 0 ].push_back( double( 0 ) );
  55   this->m_Points[ 1 ].push_back( double( 0 ) );
  56   this->m_Outline = vtkSmartPointer< vtkOutlineSource >::New( );
  57   this->_UpdateVTK( );
  58 }
  59
  60 // -------------------------------------------------------------------------
  61 cpInstances::BoundingBox::
  62 ~BoundingBox( )
  63 {
  64 }
  65
  66 // -------------------------------------------------------------------------
  67 void cpInstances::BoundingBox::
  68 _UpdateVTK( )
  69 {
  70   auto dobj = this->GetVTK< vtkDataSet >( );
  71   if( dobj == NULL )
  72     return;
  73
  74   // Get bounds
  75   double bounds[ 6 ];
  76   dobj->GetBounds( bounds );
  77
  78   this->m_Points[ 0 ].clear( );
  79   this->m_Points[ 1 ].clear( );
  80   this->m_Points[ 0 ].push_back( bounds[ 0 ] );
  81   this->m_Points[ 0 ].push_back( bounds[ 2 ] );
  82   this->m_Points[ 0 ].push_back( bounds[ 4 ] );
  83   this->m_Points[ 1 ].push_back( bounds[ 1 ] );
  84   this->m_Points[ 1 ].push_back( bounds[ 3 ] );
  85   this->m_Points[ 1 ].push_back( bounds[ 5 ] );
  86
  87   // Update vtk objects
  88   this->m_Outline->SetBounds( bounds );
  89   this->m_Outline->Update( );
  90   this->m_VTK = this->m_Outline->GetOutput( );
  91 }
  92
  93 // eof - $RCSfile$