Branch Heads and Tails

A reference dimension is set up by setting the HDMTYPE and HDMFARRAY attributes of the Head or TDMTYPE and TDMFARRAY attributes of the Tail.

HDMTYPE and TDMTYPE are word array attributes. They can be set to one or two of the following:

• EAST

• NORT

• ELEV or

• POS for a 3D dimension

HDMFARRAY and TDMFARRAY are reference array attributes used to set the names of the reference elements.