VisTrails is a new scientific workflow management system developed at the University of Utah that provides support for data exploration and visualization. Written in python, it has a visual programming interface for many libraries, including VTK.
Dear Charlesli, The startup errors that you are experiencing should be easily fixable by a configuration change. You need to "turn on" the vtk package. The reason that you do not see traffic in the forum is that we have a different site, www.vistrails.org, that we use for managing the project, including developer and users mailing lists. I would like to recommend you look into those. Hope this is helpful to you and others looking into VisTrails. Best, Claudio.
Looks great, but installer is broken (Windows 7 professional). On startup generates errors about some missing python package vistrails.vtk it can't load. Tried two of the examples, more errors. Sourceforge forums for help and/or bug report forums seem to be completely empty. DOA.