Improve read performance
Improve read performance

Calling vtkTransform::TransformPoints ensures the transform is up
to date with a mutex.  Do this once at the start of packet prcoessing
then use the internal transform point to call transform without
checking the mutex.

Kitware/VeloView,frizaro/Veloview,frizaro/Veloview,Kitware/VeloView,frizaro/Veloview,Kitware/VeloView,Kitware/VeloView,Kitware/VeloView,frizaro/Veloview