What is the Visualization Toolkit?
The Visualization ToolKit (vtk) is a software system for 3D Computer Graphics and Visualization. VTK includes a textbook published by Kitware Inc. ([http://www.kitware.com/products/vtktextbook.html The Visualization Toolkit, An Object-Oriented Approach to 3D Graphics]), a C++ class library, and Tcl, Python and Java implementations based on the class library. For more information, see http://www.vtk.org and http://www.kitware.com.