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Auto Cross Section — User manual

Auto Cross Section (GeoStru DrawSection) is a VBA macro for AutoCAD that generates topographic sections and terrain profiles by intersecting a section line with the contour lines of the drawing.

You pick two points on the plan and the program:

  1. finds every intersection between the section line and the contour lines (polylines with elevation, 3D polylines) on the layers that are on;
  2. sorts the points along the section and computes their chainage and elevation;
  3. draws the terrain profile at the point you choose, with the title block (code, chainage, partial distance, elevation) and the horizontal and vertical scales you set;
  4. can export the section as an .edp file, read by Slope, Georock 2D, Georock 3D and the other GeoStru programs that need a topographic profile.

The Hydrologic Risk module also exports the boundary of a drainage basin (closed polyline) with the spot heights inside it, for hydrological and hydraulic analysis with Hydrologic Risk.

Video tutorial

A short installation and usage video is available on YouTube: Auto Cross Section — tutorial.

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