45 commands
The familiar CAD toolset with mining geometry: graded alignments, points at a step and projection onto a surface.
Alignments, points and the usual ways of editing lines.
A line that rises or falls at a given grade, such as a ramp or a road. The elevation of each point follows from the previous one.
Drapes the selected lines and points onto the surface below them.
Copies the selected lines a given distance to one side.
Places points along the selected line at a given step from its start.
Trims polylines at the objects that cross them: click the part to remove.
Joins the ends of two polylines with a smooth spline tangent to both.