27 constexpr
auto doc_unit_dimension = R
"docstr( 28 Return the physical dimension (quantity) of a record 30 Annotating the physical dimension of a record allows us to read data 31 sets with arbitrary names and understand their purpose simply by 32 dimensional analysis. The dimensional base quantities in openPMD are 33 in order: length (L), mass (M), time (T), electric current (I), 34 thermodynamic temperature (theta), amount of substance (N), 35 luminous intensity (J) after the international system of quantities 38 See https://en.wikipedia.org/wiki/Dimensional_analysis 39 See https://en.wikipedia.org/wiki/International_System_of_Quantities#Base_quantities 40 See https://github.com/openPMD/openPMD-standard/blob/1.1.0/STANDARD.md#required-for-each-record 42 Returns the powers of the 7 base measures in the order specified above. Public definitions of openPMD-api.