[vtkusers] vtk classes to create surface

[兔子]

Hi everybody, 
I have just begun to use vtk recently, so it's not that familiar to me.I wonder if there are vtk classes that can create surfaces, I mean, curved surfaces with some points or contours,except vtkVoxelContoursToSurfaceFilter. Besides, vtkContourWidget can create contours with the points picked by mouse, can some vtk class create curved surfaces with the points picked by mouse? 

Look forwards to your reply. 
Best wishes, 
Yue 
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