lib/cpExtensions/Visualization/PolyLineParametricPathToPolyData.cxx

   1 #include <cpExtensions/Visualization/PolyLineParametricPathToPolyData.h>
   2
   3 #include <vtkCellArray.h>
   4 #include <vtkInformation.h>
   5 #include <vtkInformationVector.h>
   6 #include <vtkSmartPointer.h>
   7
   8 // -------------------------------------------------------------------------
   9 template< class _TPolyLine >
  10 typename
  11 cpExtensions::Visualization::PolyLineParametricPathToPolyData< _TPolyLine >::
  12 Self*
  13 cpExtensions::Visualization::PolyLineParametricPathToPolyData< _TPolyLine >::
  14 New( )
  15 {
  16   return( new Self( ) );
  17 }
  18
  19 // -------------------------------------------------------------------------
  20 template< class _TPolyLine >
  21 const typename
  22 cpExtensions::Visualization::PolyLineParametricPathToPolyData< _TPolyLine >::
  23 TPolyLine*
  24 cpExtensions::Visualization::PolyLineParametricPathToPolyData< _TPolyLine >::
  25 GetInput( ) const
  26 {
  27   return( this->m_PolyLine );
  28 }
  29
  30 // -------------------------------------------------------------------------
  31 template< class _TPolyLine >
  32 void
  33 cpExtensions::Visualization::PolyLineParametricPathToPolyData< _TPolyLine >::
  34 SetInput( const TPolyLine* pl )
  35 {
  36   if( this->m_PolyLine != pl )
  37   {
  38     this->m_PolyLine = pl;
  39     this->Modified( );
  40
  41   } // fi
  42 }
  43
  44 // -------------------------------------------------------------------------
  45 template< class _TPolyLine >
  46 cpExtensions::Visualization::PolyLineParametricPathToPolyData< _TPolyLine >::
  47 PolyLineParametricPathToPolyData( )
  48   : vtkPolyDataAlgorithm( ),
  49     m_PolyLine( NULL )
  50 {
  51   this->SetNumberOfInputPorts( 0 );
  52 }
  53
  54 // -------------------------------------------------------------------------
  55 template< class _TPolyLine >
  56 cpExtensions::Visualization::PolyLineParametricPathToPolyData< _TPolyLine >::
  57 ~PolyLineParametricPathToPolyData( )
  58 {
  59 }
  60
  61 // -------------------------------------------------------------------------
  62 template< class _TPolyLine >
  63 int
  64 cpExtensions::Visualization::PolyLineParametricPathToPolyData< _TPolyLine >::
  65 RequestData(
  66   vtkInformation* information,
  67   vtkInformationVector** input,
  68   vtkInformationVector* output
  69   )
  70 {
  71   static const unsigned int dim = _TPolyLine::PathDimension;
  72
  73   if( this->m_PolyLine == NULL )
  74     return( 0 );
  75
  76   // Get output
  77   vtkInformation* info = output->GetInformationObject( 0 );
  78   vtkPolyData* out = vtkPolyData::SafeDownCast(
  79     info->Get( vtkDataObject::DATA_OBJECT( ) )
  80     );
  81
  82   // Prepare data
  83   out->SetPoints( vtkSmartPointer< vtkPoints >::New( ) );
  84   out->SetVerts( vtkSmartPointer< vtkCellArray >::New( ) );
  85   out->SetLines( vtkSmartPointer< vtkCellArray >::New( ) );
  86   out->SetPolys( vtkSmartPointer< vtkCellArray >::New( ) );
  87   out->SetStrips( vtkSmartPointer< vtkCellArray >::New( ) );
  88   vtkPoints* points = out->GetPoints( );
  89   vtkCellArray* lines = out->GetLines( );
  90
  91   // Get data
  92   for( unsigned long i = 0; i < this->m_PolyLine->GetSize( ); ++i )
  93   {
  94     typename _TPolyLine::TPoint pnt = this->m_PolyLine->GetPoint( i );
  95     if( dim == 1 )      points->InsertNextPoint( pnt[ 0 ], 0, 0 );
  96     else if( dim == 2 ) points->InsertNextPoint( pnt[ 0 ], pnt[ 1 ], 0 );
  97     else                points->InsertNextPoint( pnt[ 0 ], pnt[ 1 ], pnt[ 2 ] );
  98     if( i > 0 )
  99     {
 100       lines->InsertNextCell( 2 );
 101       lines->InsertCellPoint( i - 1 );
 102       lines->InsertCellPoint( i );
 103
 104     } // fi
 105
 106   } // rof
 107   return( 1 );
 108 }
 109
 110 // -------------------------------------------------------------------------
 111 template< class _TPolyLine >
 112 int
 113 cpExtensions::Visualization::PolyLineParametricPathToPolyData< _TPolyLine >::
 114 RequestInformation(
 115   vtkInformation* information,
 116   vtkInformationVector** input,
 117   vtkInformationVector* output
 118   )
 119 {
 120   return( 1 );
 121 }
 122
 123 // -------------------------------------------------------------------------
 124 #include <cpExtensions/DataStructures/PolyLineParametricPath.h>
 125
 126 template class cpExtensions::Visualization::PolyLineParametricPathToPolyData< cpExtensions::DataStructures::PolyLineParametricPath< 1 > >;
 127 template class cpExtensions::Visualization::PolyLineParametricPathToPolyData< cpExtensions::DataStructures::PolyLineParametricPath< 2 > >;
 128 template class cpExtensions::Visualization::PolyLineParametricPathToPolyData< cpExtensions::DataStructures::PolyLineParametricPath< 3 > >;
 129 template class cpExtensions::Visualization::PolyLineParametricPathToPolyData< cpExtensions::DataStructures::PolyLineParametricPath< 4 > >;
 130
 131 // eof - $RCSfile$