Thanks for the quick response mmusy.<br><br>
I want to generate the curved face by vtk to join three cylinders surface but not transform the polydata. <i>vtkBooleanOperationPolyDataFilter().SetOperationToUnion()</i> does not meet my need. I want vtk to do <b>three-tube mixing</b> like Rhino to generate the curved face by curvature and boundary. <br><br>
Any ideas or demos?<br><br>
Frank
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