The Smart Slope Generator draws engineering slope hatching — the tick and batter marks used on grading, embankment and road design drawings — between any two lines you pick. Select a top line (crest) and a bottom line (toe), and the pattern is generated to survey accuracy.

Key Features:

Automated hatching: slope ticks between polylines, 3D polylines, splines, arcs and Civil 3D feature lines, in 2D or 3D.
Cut / Fill detection: automatic orientation and separate colours and layers for cut, fill and generic sections, with ByLayer support.
Background mask: an optional hatch that follows the real vertices of your geometry, so corners stay sharp and curves stay curved.
Interactive corner adjustment: drag the on-screen preview to spread slope lines exactly as you want them where they naturally converge.
Live preview: the preview is the real engine output — what you see is what gets drawn.
Built for real work: entire alignment or a picked chainage range, a continuous drawing loop, per-slope Undo, and metric or imperial units.

New in Version 2.0:

Slope lines now gather correctly into inside corners.
Closed shapes — ponds, basins, building pads — draw all the way round.
The background mask follows real vertices instead of cutting corners.
ByLayer colours and an explicit layer override.
Redesigned command flow: the alignment line is named and highlighted, and Entire / Segment switch at any prompt.

Technical Details:

Main command: GR_DRAWSLOPE (the original DRAWSLOPE still works)
Works with: AutoCAD and Civil 3D 2024–2027, ZWCAD 2026, GstarCAD 2027
Installation: run the installer, tick the CAD programs you use, and restart them. The button appears on the Add-ins tab in AutoCAD and on the GR Tools tab in ZWCAD. On GstarCAD, type GR_DRAWSLOPE.
Free: no licence key, no activation, no time limit.

Smart Slope Generator

Works with