specify whether datum curves should be included for hidden line calculations.
defaults and available settings
- yes* - datum curves are included when calculating the display of hidden lines.
blanking and unblanking datum curves on a drawing
will cause hidden lines in views to be recalculated.
- no - datum curves are not included when calculating the display of hidden lines.
blanking and unblanking datum curves on a drawing
will not cause hidden lines in views to be recalculated. when using this option, datum curves will be displayed in wireframe.
note
hidden lines are initially calculated for all views when this configuration option is changed. this ensures that the display
of the drawing remains stable when saved and retrieved. subsequent blanking and unblanking of layers containing only datum
curves will not force hidden lines to be recalculated.