When creating a drafting Linear or Rapid dimension between two 3D centerlines, NX will produce a Cylindrical type dimension and not a Linear type.
Solution
Starting in NX11.0, when creating a dimension between two 3D centerlines, a Linear Cylindrical type dimension is always created. In order to create a Linear horizontal or vertical type dimension between two 3D centerlines, at least one control point on the centerline needs to be selected for the first or second reference object. This will result in a Linear dimension measuring the linear distance between the centerlines.
Notes and References
Hardware/Software Configuration
Platform: all
OS: n/a
OS Version: n/a
Product: NX
Application: DRAFTING
Version: V11.0
Function: DIMENSION
Ref: 001-9481249