You cannot measure the flatness of a constructed primary plane.
correct, we discovered this when we migrated from 2020 R1 to 2022.1 some of our programs have constructed primary datum planes as oppose to auto planes. When we asked Hexagon about it, their reply is below. the migration tool didn't catch / convert the Datum A plane but it did flag the flatness dimension.
"Constructed Primary Datum plane, Secondary Datum Line and Tertiary Datum Point are only supported as Datums with the
Geometric Tolerance command and are
not supported for tolerancing by design (hits aren’t always available pending input feature type). With GeoTol, the default datum math is Constrained L2 and DRF’s are constrained in Orientation so the constructed datums are not needed. That said, these constructed datum features make sense for Legacy dimensioning so are still supported with Legacy."
You cannot measure the flatness of a constructed primary plane.
correct, we discovered this when we migrated from 2020 R1 to 2022.1 some of our programs have constructed primary datum planes as oppose to auto planes. When we asked Hexagon about it, their reply is below. the migration tool didn't catch / convert the Datum A plane but it did flag the flatness dimension.
"Constructed Primary Datum plane, Secondary Datum Line and Tertiary Datum Point are only supported as Datums with the
Geometric Tolerance command and are
not supported for tolerancing by design (hits aren’t always available pending input feature type). With GeoTol, the default datum math is Constrained L2 and DRF’s are constrained in Orientation so the constructed datums are not needed. That said, these constructed datum features make sense for Legacy dimensioning so are still supported with Legacy."
