Sections and Polylines

See the section Polyline to know how to create a polyline manually.

• Create sections

  • Exercise: Create a planar section on a point cloud

  • Exercise: Create planar sections on a mesh (extract contour lines)

  • Exercise: Radial sections on a mesh

  • Exercise: Guided sections on a mesh

• Manage polylines

  • Exercise: Cut polylines

  • Exercise: Chain polylines

• Improve polylines

  • Exercise: Improve polylines

• Break line (Feature line) and sharp edge reconstruction

  • Exercise: Extract a feature line or a break line from a mesh

  • Exercise: Rebuild a sharp edge using a feature line

• Polyline extraction

  • Exercise: Extract planar contours from a point cloud

  • Exercise: Extract the neutral axis from a tunnel

  • Exercise: reconstruction from neutral axis

In the Extract menu, you can use some other tools that are not detailed in this Guide, but you can refer to the Help files:

• Join 2 Polylines: to compute a curve to link the extremities of two polylines

• Extract All Holes and Borders: to extract the lines of the free contours and the holes in a mesh

• External contour: to compute the external contour of a mesh seen from a specific direction

Several other tools are available in the software to extract and manage polylines. They are situated in the menu Extract:

• Intersection: to compute various intersections, between polylines, meshes and geometric shapes

• Projection: to compute various projections, such as a point or a polyline on a plane or on a mesh