code: def Cone(center=(0., 0., 0.), direction=(1., 0., 0.), height=1.0, radius=0.5,
           capping=True, angle=26.6, resolution=6):
      
      src = vtk.vtkConeSource()
      src.SetAngle(angle)
      src.SetCapping(capping)
      src.SetCenter(center)
      src.SetHeight(height)
      src.SetRadius(radius)
      src.SetResolution(resolution)
      src.Update()
      return vtki.wrap(src.GetOutput())
docs: Create a cone
  
      Parameters
      ----------
      center : np.ndarray or list
          Center in [x, y, z]. middle of the axis of the cone.
  
      direction : np.ndarray or list
          direction vector in [x, y, z]. orientation vector of the cone.
  
      height : float
          height along the cone in its specified direction.
  
      radius : float
          base radius of the cone
  
      capping : bool
          Turn on/off whether to cap the base of the cone with a polygon.
  
      angle : float
          The angle degrees between the axis of the cone and a generatrix.
  
      resolution : int
          number of facets used to represent the cone