text of angular dimensions horizontally at all times, centered between
the leaders (equivalent to the value "horizontal" for the drawing
setup file option "text_orientation").
text parallel to the leader lines, regardless of their orientation (equivalent
to the value "parallel" for the drawing setup file option "text_orientation").
text horizontally outside the dimension.
text parallel to the dimension arc, but above it.
text of angular dimensions (with a plus/minus tolerance) parallel to the