The following attributes of inlines may be used in the geometry rules of user inline components.

• starting_diameter is the diameter of the pipeline immediately upstream of the inline - this value can be different from pipeline.diameter if there is a reducer in the pipeline’s inline sequence
• insulation is the insulation code of the pipeline’s insulation at the placement point of the inline
• thickness is the thickness of the above insulation
• line_class is the material class of the pipeline at the placement point of the inline