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creo7 Drawing Setup option documentation for: GTOL_SECONDARY_VALUE_PRECISION            

(Also MBD)

gtol_secondary_value_precision

round*, truncate
Controls the precision of secondary unit value of GTOLs, when dual_dimensioning Detail option is set.
Default and Available Settings:
round* - The secondary unit values of GTOLs are rounded.
truncate - The secondary unit values of GTOLs are truncated.