Detect Faces
Use Detect Faces () to partition geometric boundary entities of an imported mesh by searching for shapes in the mesh that are likely to constitute faces, as seen in Figure 8-49.
Figure 8-49: A mesh with one single face (left). The same mesh after building the Detect Faces operation that automatically partitions the boundary into planar surfaces and fillets.
To add a Detect Faces node, select boundaries in the Graphics window, then:
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Right-click in the Graphics window to open The Graphics Context Menu and select Detect Faces () from the Booleans and Partitions menu.
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Click Booleans and Partitions () on The Mesh Toolbar and select Detect Faces.
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Right-click the Mesh node and select Detect Faces () from the Booleans and Partitions menu.
Note that partitioning the faces in a mesh can modify the number of geometric boundaries in the mesh. Thus when you are adding this operation to a meshing sequence that is conforming with the component’s geometry, a new meshing sequence that is defining its own geometric model is automatically created, and the Detect Faces node is added to this new sequence. For more information, see The Mesh Node.
Then use the following sections to specify the geometric boundary entities to split and the parameters of the partitioning algorithm:
Boundary Selection
Select the geometric boundary entities that you want to split, choose a named selection to refer to a previously defined selection, or choose All boundaries to select all boundary entities.
Face Partitioning
The partitioning algorithm splits the boundary elements along edges where the angle between neighboring boundary elements is large. Use the Maximum neighbor angle field to set the largest tolerated neighbor angle.
Select the Detect planar faces check box (selected by default) to also group approximately planar boundary elements into faces. Use the Minimum relative area field to limit how small these faces can be relative to all of the selected boundary entities. The maximum accepted angle between boundary elements in a planar face can be set with the Maximum deviation angle field. If the Detect adjacent fillet faces check box is selected, the algorithm also searches for adjacent groups of boundary elements that form cylindrical faces.
Other ways of partitioning boundaries in a mesh:
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Create Edges
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Intersect with Plane
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Partition with Ball
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Partition with Box
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Partition with Cylinder
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Partition by Expression