Polyline 

Menu: Geometry->Edit→Polylines

Explode polyline:
This command lets you select which polylines you wish to explode; lines that are not polylines or have higher entities or conditions are rejected. After confirmation, the polylines are exploded and converted back to their original lines. Polylines then disappear (see Polyline).

Edit polyline:
The command Edit Polyline allows you to select which polylines you wish to edit; lines that are not polylines are rejected. It is possible to choose several options for the polylines:

• Use points: When meshing this polyline, there will be at least one node at every point location that defines the polyline. These will be the endpoints of interior lines.
• Not use points: When meshing this polyline, the mesh generator ignores the points and therefore the nodes will be placed anywhere. This is the default option. Nodes will only be put in the position of a point if there is a 4-sided surface over a part of a polyline (see Automatic 4-sided surface creation).
• Only points: When meshing this polyline, the nodes will only be placed where the geometry points are.

Note: If one condition is assigned to one interior point of a polyline (see Conditions), one node of the mesh will be placed over that point.