Specifies the position affinity associated with the object.
BranchPositionAffinity_UNDEFINED = 0
Undefined position affinity.
BranchPositionAffinity_NONE = 1
The affinity of the branch is computed based on rules and remains consistent.
BranchPositionAffinity_UP = 2
The branch emanates from the upper half of the header. Up is with respect to the absolute Z direction.
BranchPositionAffinity_DOWN = 3
The branch emanates from the lower half of the header. Down is with respect to the absolute Z direction.
BranchPositionAffinity_TOP = 4
The branch is towards the top face of the header. This is applicable where the cross-section is rectangular, oval or U-shaped. Top corresponds to positive V direction of the cross-section.
BranchPositionAffinity_BOTTOM = 5
The branch is towards the bottom face of the header. This is applicable where the cross-section is rectangular, oval or U-shaped. Bottom corresponds to negative V direction of the cross-section.