0.500000*
controls the distance between dimension text and dimension leader line and represents the ratio between gap size and text
height.
for diameter dimensions, if text_orientation is set to parallel_diam_horiz, the dim_text_gap drawing setup option controls the extension of an elbow line beyond the dimension text.
note
the drawing_units drawing setup file option determines the unit of measurement for the dim_text_gap drawing setup file option.
