The abritrary slice probing outputs the postprocessing variables on an abritrary slice that is defined by three points specified by the property pp_arbSlicePoints. The number of slices is determined by the given total number of points. Given points a, b and c for a slice (with vectors b-a and c-a nonparallel), the positions on the slice are determined by p_ij = a + 1/(i-1)*(b-a) + 1/(j-1)*(c-a). The parameters i and j (number of points in direction b-a and c-a) are determined by the property pp_noPointsArbSlice.
The output is a single output file named probeArbitrarySlices_<globalTimeStep>.Netcdf containing all slices.

The operation is triggered by setting one of the following properties

postProcessingOps_<postprocessinginstanceId> = [PP_PROBE_ARB_SLICE_PRE]
postProcessingOps_<postprocessinginstanceId> = [PP_PROBE_ARB_SLICE_IN]
postProcessingOps_<postprocessinginstanceId> = [PP_PROBE_ARB_SLICE_POST]

Additionally, the properties

MInt pp_averageStartTimestep
MInt pp_averageStopTimestep
MInt pp_averageInterval

have to be set.