Add precision setting to all transformers that output dimensions or metric coordinates.
To negate the need to add AttributeRounders after (e.g. LengthCalculator) include a precision setting option in the initial transformer.
A default setting of 3 (mm) should suffice for most operations.
This setting could then be defined as a user parameter for use throughout a workspace.
A search shows discussions around precision dating back a decade ago, so I may be late to the party here.
