Sections from 3D Polylines

This command creates a cross section file (.SCT) from 3D polylines. The 3D polylines should be drawn perpendicular to the centerline. A section alignment file (.MXS) from the Input-Edit Section Alignment command is needed to define the centerline and the stations of the cross sections.

The elevations for the cross section points come from the 3D polyline vertice elevations. The offsets for the cross section points are derived from the perpendicular distance between the centerline and the polyline vertices. In order to be included in a cross section, a polyline vertice must be within the Maximum Offset Tolerance distance of the cross section line.

Prompts

Choose MXS File to Process select file
Choose SCT file to Append/Write select file
Sections From 3D Polylines dialog
Select polylines for sections.
Select objects: pick polylines

Pulldown Menu Location: Sections
Keyboard Command: sct3dp
Prerequisite: 3D Polylines and section alignment file (.MXS)