Constructs a new envelope by expanding the input envelope about its center. Scale is typically a power of 10 indicating the number of sig figs to preserve. If its zero, the extent is expanded 1.5 times (subject to some constraints).
(deprecated, use ConstructZMDomainExtent2) Constructs a low precision Z or M domain extent centered on the specified extent. scale is 1/(desired resolution). If scale is 0.0, a default of 1,000,000.0 is used.
Constructs a low or high precision Z or M domain extent centered on the input extent. inScale is 1/desired resolution. If inScale is zero, 1/.1 mm is used for a high precision domain and 1/1mm is used for a low precision domain.