# Post-processing of particle data

ESYS-Particle exports snapshot, which have to be transformed to the VTK format. You can use the provided tool dump2vtk:

dump2vtk -rot -i flow_data -o flow_data_vtk -t 0 200 100


The options of the tool are:

Option
Comment
-rot This option have to be used if the simulation used RotParticles
-i [fileprefix] Specify the prefix of the snapshots (what was provided in fileNamePrefix in CheckPointPrms)
-o [fileprefix] The prefix for the created VTK files
-t [i0] [di] [n] Provide the iteration number of the first snapshot i0, the number of iterations between snapshot di, and the number of snapshots n
-mesh Export the mesh in the VTK