const word UName(propsDict.getOrDefault< word >("U", "U"))
IOdictionary propsDict(dictIO)
const word cloudName(propsDict.get< word >("cloud"))
const word dictName("particleTrackProperties")
label maxPositions(propsDict.get< label >("maxPositions"))
label maxTracks(propsDict.getOrDefault< label >("maxTracks", -1))
label sampleFrequency(propsDict.get< label >("sampleFrequency"))
word setFormat(propsDict.getOrDefault< word >("setFormat", "vtk"))
const dictionary formatOptions(propsDict.subOrEmptyDict("formatOptions", keyType::LITERAL))