More about Thickness

The following section aims at describing thickness operation in more details:
 


How is the Thickness Representation Calculated?Top

The thickness representation is obtained by:

  • selecting the offset values depending on the surface design:

    surface = solid (neutral- fibred)
    surface = solid (surface limit)

The thickness value can take any positive or negative value

The following example aims at illustrating the impact of the offset values on the final result.

Case 1: offset 1 value>0 and offset 2 value>0 (or the opposite)Top

The surface is assigned offsets on both sides
 

 

Case 2: offset 1 value>0 and offset 2 value=0 (or the opposite)Top

The surface is assigned an offset on one side
 

Now, if offset 1 value=0 and offset 2 >0 this is what you obtain:
 

 

Case 3: offset 1 value>0 and offset 2 value<0 (or the opposite)Top

The surface is assigned an offset twice on the same side.

Now, if the offset values are opposite, both offsets are applied in the same direction.

 

 

Orientation Constraints OptionTop

Sometimes you will tackle with design inconsistencies. You can check the orientation constraints option and/or define orientation constraint vectors to force the offset orientation
This procedure can be used when different surface patches are assigned opposite normal vectors.

The following example aims at illustrating the orientation constraints option.

Orientation Constraints Option ClearedTop

The default normal vectors define the offset orientation for each surface patch. 

Result:  If the surface patches are not correctly designed, there might be gaps between the different surface patches. In this case, you need to use the orientation constraints option (automatic mode)

NB.  You should study the result preview carefully to detect inconsistencies.

Orientation Constraints Option is Selected (Automatic Mode)TopTop

The first default normal vector defines the offset orientation reference. This orientation is automatically propagated to the neighboring surfaces. 

Result: If the surface patches are not correctly connected, there might still be remaining gaps between surface patches. In this case, you need to use the orientation constraints option and to define manually constraint vectors. 

NB. The surface patches are not correctly connected are highlighted in the result preview.

Orientation constraints Option Selected and Two Orientation Constraint VectorsTop

The orientation constraint vectors define the offset orientation references. This resulting orientation is propagated to the neighboring surfaces of each constraint

Result: The surface patches are now correctly connected
NB. The constraint vectors defined manually appear as red arrows on the picture.