[vtkusers] about vtkSTLWriter?

[zhuo Chen]

Hi,all vtkusers
In my program code,there are some codes following:

vtkSTLWriter *stl = vtkSTLWriter::New();
stl->SetInput(triangles->GetOutput());
stl->SetFileName(brain.stl);
stl->Write();

But when I compile my program,there is an error which
is "'vtkSTLWriter' : undeclared identifier".I have
already write the sentence "#include "vtkSTLWriter.h"
".I don't know why the error occurs.

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