Moving forward making vtu an independent format.
Now fpakc can generate nodes and edges from vtu input.
Next step is cells.
Some minor corrections in gmsh2 format to unify statements.
The reading of meshes needs a good overhaul.
Testing all geometries with vtu is gonna be fun...
The average of the species properties can be written now in .vtu format.
No .pvd file is provided as no time series is generated.
Still to do:
Read a .vtu mesh.
Improve gmsh format to use more common functions.
The collisions and EM field information is now available in .vtu files.
A collection file .pvd is provided per dataset for time-dependent
plotting.
Still to do:
Write average quantities in .vtu
Read mesh from .vtu
Testing new VTU format.
For now, species information is ALWAYS output in .vtu (to test, this will
be an independent format in the future).
A .pvd file is produced to do time-series.
Still to implement other outputs (electromagnetic, average,
collisions...)
Still to implement reading a mesh from .vtu file
During the improve performant step, an error in the electrostatic
pushers was introduced, resulting in these using the minimum time step
and not the species time step when calculating the acceleration.
Now particles can be split to increase statistics when they enter a
smaller cell. However, this only has an effect for collisions.
Still, I have to rethink a lot about this feature.
