label maxPositions(propsDict.lookup< label >("maxPositions"))
IOdictionary propsDict(IOobject("particleTrackProperties", runTime.constant(), mesh, IOobject::MUST_READ_IF_MODIFIED))
label sampleFrequency(propsDict.lookup< label >("sampleFrequency"))
const word cloudName(propsDict.lookup("cloudName"))
word setFormat(propsDict.lookupOrDefault< word >("setFormat", "vtk"))