Measure water surface elevation in d3plot

Dear all,

I’m trying to obtain water level data at fixed locations in an SPH domain (LS-Dyna). The format of the results is d3plot. I’ve read about how to do it for OpenFoam results, but this doesn’t seem to work for a d3plot format. Does anyone know the steps how to measure the water level, with the only variable being the upward y coordinate like a probe/wave gauge?

Thank you and regards.