BBTK_CATEGORY("empty");
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_OUTPUT(VectorsExtraction,Angle1,"Angle 1 (Helix Angle)",double,"");
BBTK_OUTPUT(VectorsExtraction,Angle2,"Angle 2 (Transversal Angle)",double,"");
BBTK_END_DESCRIBE_BLACK_BOX(VectorsExtraction);