nxtomo.paths.nxsource# nexus path used to define a NXsource Classes NEXUS_SOURCE_PATH() NEXUS_SOURCE_PATH_V_1_0() NEXUS_SOURCE_PATH_V_1_1() NEXUS_SOURCE_PATH_V_1_2() NEXUS_SOURCE_PATH_V_1_3() NEXUS_SOURCE_PATH_V_1_4()