Use the AutoCAD Civil 3D breakline tools to find, report, and correct intersecting breaklines in a survey database or in a surface to which the breakline geometry has been added.
Breaklines are important elements in a digital terrain model (DTM). Any invalid conditions in breakline geometry can cause issues in surface creation.
The following drawing shows an example of two crossing breaklines that create an invalid condition when two elevations exist at the intersection point of the breaklines (1 and 2).
The breakline tools enable you to:
- Identify crossing breaklines in a survey database, survey figure, or a surface created from survey data. See Finding and Fixing Crossing Breaklines.
- Edit breakline elevations to resolve issues caused by crossing breaklines. See Finding and Fixing Crossing Breaklines.
- Create reports on crossing breaklines or breaklines that fall outside of specified ranges. See Creating Breakline Reports.
Topics in this section
- Finding and Fixing Crossing Breaklines
Use the Crossing Breakline tool to identify and fix any intersecting breaklines in a drawing, survey figure, or survey database.
- Creating Breakline Reports
Use the crossing breakline reporting tools to generate reports that can help you analyze and aggregate breakline data and fix invalid conditions in the breaklines.