You can use the following tools to create scans or curves:
Projecting Curves
Creating Planar Sections
Creating Automatic Planar Sections
Creating
Free Edges
Creating
Associative 3D Curves
Creating
Associative 3D Curves on a Scan
Creating
a Curve on Mesh
Creating Curves From Scans
Creating a Sketch
from Scan
Creating a Sketch from Scan from a
Mesh
Creating Intersections
Creating
Projections
Selecting
using Multi-Output