Check whether hook offset length is required.
remarks: If hook angle is no more than 90 degree, hook offset length is not meaningful.
returns: True if hook offset length is required, otherwise false.
Namespace:
Autodesk.Revit.DB.Structure
Assembly:
RevitAPI
(in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0)