// Read particleTrackDict dictionary and extract values from it const word dictName("particleTrackDict"); #include "setConstantMeshDictionaryIO.H" IOdictionary propsDict(dictIO); const word cloudName(propsDict.get("cloud")); // Mandatory - if empty, select none wordRes acceptFields(propsDict.get("fields")); // Optional wordRes excludeFields; propsDict.readIfPresent("exclude", excludeFields); // ************************************************************************* //