I’ve just released fVTKHDF v0.7.0, adding Fortran writers for ImageData, RectilinearGrid, and StructuredGrid, alongside the existing UnstructuredGrid and MultiBlockDataSet support.
As described in the original announcement, fVTKHDF provides a high-level, object-oriented Fortran 2018 interface for writing VTKHDF files. It supports both collective output using parallel HDF5 and serial builds without MPI.
The new structured-grid writers support static and time-dependent data, incremental region writes with halo exclusion, and moving geometry for RectilinearGrid and StructuredGrid.
Examples and the reference manual cover all supported dataset types. Feedback, bug reports, and suggestions are welcome, particularly from people integrating VTKHDF output into Fortran simulation codes.