Length unit to which coordinates from STEP and IGES files are converted to when imported by OpenCASCADE, e.g. 'M' for meters (leave empty to use OpenCASCADE default behavior)@*
Length unit to which coordinates from STEP and IGES files are converted to when imported by OpenCASCADE, e.g. 'M' for meters (leave empty to use the default OpenCASCADE behavior); the option should be set before importing the STEP or IGES file@*