Slope Lisp Routine

Does anyone know of either a built in Survcadd function or a lisp routine
that will allow me to label slopes of 2d ploylines?
IE: Labeling the slope of a driveway entrance by picking 2 endpoints of a
2d polyline or 2 nodes with z values.
Thanks in advance for any help
that will allow me to label slopes of 2d ploylines?
IE: Labeling the slope of a driveway entrance by picking 2 endpoints of a
2d polyline or 2 nodes with z values.
Thanks in advance for any help