I try to use vtkCollisionDetectionFilter to detect collision between two tubes that created with vtkTubeFilter, but vtkCollisionDetectionFilter can not detect it.
when i write and read one tube as STL file, it works properly.
how can i solve this problem without writing as STL file.
In first condition i give the vtktubefilter outputs to the collisiondetection, in this case it doesn’t work.
in second condition i write and read vtk tube output as a STL file and give the STL file output to the collisiondetection, in this case it works properly.
type of vtkTubeFilter cells is  TriangleStrip while collision required Triangle cell.
vtkTriangleFilter can convert cell type to Triangle cell.
collision detection between two tubes