About Relimitation

Relimitation adds material to redefine the boundary of a layer, to simulate the cut of infinite ribbons to create layers. Each relimiting zone contains a relimiting wire, a direction of relimitation (Machine direction, cross direction, or both), and a direction to indicate the side to keep.

In the examples below, the wire is in light blue. The orange arrow indicates the side to keep.

With this input

Material can be added in the machine direction

in the cross direction

or in both directions

The addition of material on such open sides is computed with the semi-infinite line along the adding direction passing through the extremum of the layer along the other direction. In this example,

to add material along the machine direction, the material is added according to the red semi-infinite lines. The lines are created with the extremums of the layer, along the cross direction. Their direction is the machine direction.

If the relimiting wire creates a perfectly closed area with the boundary

the area is filled, provided the add material direction allows it.

• In the machine direction
  
  
• In the cross direction
  
  

If a domain of the layer does not touch directly the relimiting wire, you can force the addition of material. In this example, the two-domains layer is relimited by a wire that intersects only one domain.

• Without forcing the addition of material, the result is
  
  
• When forcing the addition of material, the result is
  
  

To enable the addition of material, the relimiting wire must be larger than the layer.

• In this example, addition of material is impossible
  
  
• It is possible in this example