Map Mesh: Face

 

 

 

 

Function

Map-Mesh Face generates mapped meshes on selected faces (Shell, Face).

 

 

 

 

Call

 Mesh > Map Mesh > Face

 

 

 

 

<Map-Mesh Face>

 

Select Face(s)

Select Faces (Shell, Face), which will be automatically meshed.
 

Select Corner Vertices

The Mapped Mesh generating algorithm creates a square mesh by mapping a selected shape into an imaginary square.  It then maps the generated mesh back to the original shape.  Thus, a group of four edges needs to be defined for mapping each edge of the square.  The edges of the face are manually grouped into four edges by selecting four vertices of the edges composing the boundary edges of the face.
 

Mesh Size

Element Size

Specify the element size.
Division

Specify the number of divisions at the boundary edges of the shape for a meshing operation.
 

Attribute

 

Mesh Set

 

 

<Advanced Option>

 

Sort Object Faces

Specify the order of Map Mesh generation. If Map Mesh is generated in multiple Faces in a random order, it often fails due to unmatched number of seeding between Faces. Therefore, defining the order will resolve it is recommended to specify the order.
 

CSys

Choose the reference coordinate system between the Global Rectangular System and the Global Cylindrical System.

Global Rectangular

Sorts based on Global X, Y, and Z axis.

Global Cylindrical

Sorts based on Radius (R), Rotation (T), and Z-axis (Z).

 

Mesh Set

 

Merge Nodes

 

Skip Meshed Face(s)

Does not generate mesh(es) for selected Face.

 

 

 

 

Notes

 

Mapped Mesh Algorithm

First, appropriate seeding is assigned to the face for which mapped mesh will be generated, and the corner vertices are assigned.  The corner vertices are indicated as A, B, C and D in Fig (i).  The seeding between the corners A & B and between the corners A & D are assigned 4 and 12 respectively.

The mapped mesh generating algorithm then maps the selected face into a square and generates a 2-D mesh reflecting the seeding as shown in Fig (ii).  The mesh of the square domain is again mapped into the object domain as shown in Fig (iii).

A main reason for failing to generate a mapped mesh is attributed to unmatched division numbers of elements for cross-faced edges.  In the above example, the number of divisions for the edge A-B and edge C-D is 4.  Similarly, the division number is identical for the edges A-D and B-C.  Otherwise, the rectangular meshing is not feasible in the square domain.

 

In cases where the mesh fails to generate, refer to Remove Edge.

 

 

 

 

Example: Map Mesh>Face

 

Map-Meshing Surface with More than 4 Corners

 

 

 

 

 

<Instruction>

 

1. Select face(s) to generate Mesh (if the shape is Shell, change Selection Filter to Shell)

2. Choose 4 corner vertices - (Normally, users are not required to select them. By not specifying them, the program will choose 4 corners which are close to perpendicular.)

3. Make sure Sizing Method is in Element Size (Refer to Size Control>On FaceĀ…).

4. Enter 30 in Mesh Size.

5. Click button to assign Attribute to the face(s).

6. Click [OK] button.

 

Note

1. Map mesh is not suitable for all shapes. In those cases, user have to specify 4-corners or to adjust seedings on each edge properly.

2. To match nodal connectivity between faces, it is better to sew all Faces into a Shell.