Cassandra is a scientific data viewer based on VTK. Cassandra provides dynamic interaction with the VTK pipeline and enables the user to load plug-ins dynamically in order to perform specific tasks in data manipulation and visualisation. Cassandra is open and modular, and can easily be extended to new filters through a set of dynamically loadable plug-ins. A plug-in template is provided to help users to develop and share their own plug-ins. This approach allows users to perform complex filtering without any specific knowledge of VTK or C++.
ViTables is a graphical browser for HDF5 and PyTables databases. It can open arbitrarily large files and browse their data and metadata in a variety of ways. Its capabilities include easy navigation through the data hierarchy, displaying of real data and its associated metadata, and simple yet powerful browsing of multidimensional data.