- Mon Jan 03, 2011 10:02 pm
#181960
If you want your model to be useful for construction purposes (and not only for producing design drawings) then you have to model each floor referenced to the structural slab height (everything above slab height belongs to that floor), but you also want to produce drawings referenced to the floor finished height (for instance, the height of the window sills, or the ceiling, are documented relating to the floor finish). So, you have some plan views where you want to show heights of elements of each floor referenced to the structural slab (which is build first) and then you have other elements that have to be referenced to the floor finish height.
That means that you need, at least, a reference level for each floor.
For instance:Steve Jepson wrote:What kind of drawings would you want to annotate relative to more than Seal Level, Datum, or Project Zero ?
If you want your model to be useful for construction purposes (and not only for producing design drawings) then you have to model each floor referenced to the structural slab height (everything above slab height belongs to that floor), but you also want to produce drawings referenced to the floor finished height (for instance, the height of the window sills, or the ceiling, are documented relating to the floor finish). So, you have some plan views where you want to show heights of elements of each floor referenced to the structural slab (which is build first) and then you have other elements that have to be referenced to the floor finish height.
That means that you need, at least, a reference level for each floor.