Currently, we record every single grid point in the sample file (or an average of subsets of points when subsampling). But it's highly likely that in a lot of runs the data of interest will be sparse (concentrated around a few points of infection) and so most of the data written will be unnecessary. We should change to only subsample the active areas. This may be best to do in conjunction with using the modern vtk format.
Currently, we record every single grid point in the sample file (or an average of subsets of points when subsampling). But it's highly likely that in a lot of runs the data of interest will be sparse (concentrated around a few points of infection) and so most of the data written will be unnecessary. We should change to only subsample the active areas. This may be best to do in conjunction with using the modern vtk format.