Automatically measure the longitudinal profile, in AutoCAD

With PTE new command (from the add-on package "Cut and fill volume in AutoCAD or BricsCAD, rcad.eu/lt_scale/") you can add the Y elevation and the slope of the segments between the vertices of a selected POLYLINE or LWPOLYLINE. The Y and the slope are depending on the Y coordinate of an indicated point and an initial text Y, as well as the scales on X and Y.