This command will calculate the high and low point (sag and
crest) on the vertical curves defined in the specified road (.PRO)
profile file. Plotting the calculations in the drawing is optional.
A profile grid must already be drawn to use the plotting option.
The sag and crest are only labeled if the respective low and high
points occur on a vertical curve.
Report only/<Plot calculations>: press
Enter
Profile Settings dialog If you're using the plot option,
make sure these parameters match your grid.
[end on]Pick Lower Left Grid Corner <0.00,0.00>:
pick this point
Number of decimal Places <2>: press
Enter
Pulldown Menu Location: Profiles
Keyboard Command: sagcrest
Prerequisite: A road profile