Hi, Looking through specs: http://207.195.94.13/sart/stf-specs.html it would not be hard to write one. Somebody could look at VTK readers which seem to use the same principles. Andy On Wed, 2003-07-16 at 07:06, Xin Zhao wrote: > In my project, I am going to use the STF(simple text format) as my input. > > Does vtk has the API to deal with the STF file?