How to write an STL or PLY in binary to bytes string
e.g. in Python, for both STLs and PLYs, I want to get a string of bytes rather than write directly to a file.
E.g. something similar to vtk.vtkDataSetWriter()
writer = vtk.vtkSTLWriter()
writer.SetFileTypeToBinary()
writer.WriteToOutputStringOn()
writer.SetInputData(obj)
writer.GetBinaryOutputString()