sets the default text orientation for linear dimensions, except when in center leader configuration.
default and available settings
- horizontal* M-^Splaces the dimension text horizontal to
the leader line.
- parallel_to_and_above_leader - places the dimension text parallel to and above the
leader line (jis standard).
- parallel_to_and_below_leader - places the dimension text parallel to and below the
leader line (jis standard).
