STRING command
Creates a Civil String entity - 3D object made of line and curve segments.
Icon: 
Description
Create a Civil String entity using 3D lines and curves.
Strings are organized in String Groups. Strings within the same group have the option to interact with each other when they cross, creating an elevation point at the intersection. They cross through the exact same elevation.
Note: The Civil Strings can be used as grading input entities, TIN surface breaklines, and corridor baselines. They fill the gap between the (3D) polylines and Alignments functionality.
Method
To create a Civil String, specify the points and their elevations.
Note: Strings can be imported from Survey data, LandXML, or from Civil 3D drawing
that contains Feature Lines.
Options within the command
- Surface
- Allows you to select a TIN surface from which to extract the elevation.
- Difference
- Allows you to specify an elevation difference from the previous point.
- sLope
- Allows you to specify a slope (1:x).
- Grade
- Allows you to specify a grade in %.
- Elevation
- Allows you to specify an elevation of the point.
- Arc
- Allows you to draw an arc by specifying its end point.
- Close
- Automatically draws a 3D line from the end point of the last segment to the start point of the first segment, and ends the command.