This thread is dedicated to proposing an improvement for the VTKHDF file format regarding OverlappingAMR in Transient context.
The documentation for both can be found here:
- OverlappingAMR : VTK File Formats - VTK documentation
- Transient data : VTK File Formats - VTK documentation
In this proposal, we suppose that we can only have transient data for these fields in OverlappingAMR:
- AMRBox
- Point/Cell/Field data
To support that, we only need to change the Transient Data format. For convenience, here is the current diagram for transient data :
As these fields depend on the Level. The idea is to add between Point/Cell/FieldDataOffsets and the group Steps an intermediary group Level and replicate that for each possible Level.
Additionally, this group Level will contain 2 others datasets:
AMRBoxOffsets: to retrieve for the current timestep where we should start to read theAMRBoxNumberOfAMRBox: to retrieve for the current timestep, the number of box contained in theAMRBox
Here is a full example of what we should obtain regarding this proposal:
