BBTK_INPUT(VectorsExtraction,Coordinates,"Coordinates (x,y,z)",std::vector<double>,"");
BBTK_INPUT(VectorsExtraction,VectorsFieldImage,"Image of Vectors Field",vtkImageData*,"");
BBTK_OUTPUT(VectorsExtraction,Vector,"",std::vector<double>,"");
BBTK_INPUT(VectorsExtraction,Coordinates,"Coordinates (x,y,z)",std::vector<double>,"");
BBTK_INPUT(VectorsExtraction,VectorsFieldImage,"Image of Vectors Field",vtkImageData*,"");
BBTK_OUTPUT(VectorsExtraction,Vector,"",std::vector<double>,"");