Using the Rule Based Surface Mesh Editor

This task shows you how to access and use the Rule Based Surface Mesh editor. The Rule Based Surface Mesh editor contains a set of tools to generate or remove the mesh, to simplify the topology, to edit the surface mesh part (edit topology, impose nodes, lock domains, remove the generated mesh on domains, remesh domains with a different mesh method), etc.

  1. To access the Rule Based Surface Mesh editor, right-click an existing rule based surface mesh part in the specification tree, and select Edit.

    You enter the Rule Based Surface Mesh editor, which contains a set of tools to edit the topology, edit the mesh, lock domains, remove the generated mesh on domains, generate or remove the mesh, remesh domains with a different mesh method, etc. Some of those tools are available only if you previously launched the mesh execution.

  2. To automatically remesh the surface after each modification, click Remesh Options , and select the Auto remesh on modification check box.

  3. To simplify the topology, click Simplify Topology .
    This command is available only if you selected the Simplify geometry under check box in the Geometry tab of the Meshing Rules Editor dialog box.

  4. To remove the topology simplification, click Remove Topological Simplification .
    This command is available only if you selected the Simplify geometry under check box in the Geometry tab of the Meshing Rules Editor dialog box.

  5. To launch the mesh execution, click Mesh .
    The mesh process is launched, and the mesh is generated.

  6. To remove the mesh, click Remove Mesh .

  7. To locate areas of the model that do not have a mesh, click Unmeshed Domains .

  8. To dynamically obtain information about the total number of elements and the number of elements with a bad or poor mesh quality in the rule based surface mesh part, click Statistics .
    To use this capability, you must switch to the quality visualization mode.
    The Statistics dialog box appears and displays the following information:
    • Total number of elements
    • Number and proportion of triangle elements
    • Number and proportion of elements with a poor mesh quality (elements colored in yellow)
    • Number and proportion of elements with a bad mesh quality (elements colored in red)

    You can keep the Statistics dialog box open while you edit the rule based surface mesh part to obtain mesh statistics dynamically. It can be useful when you modify the mesh by moving nodes, splitting elements, etc.

  9. To improve the mesh quality by editing the surface mesh part (edit topology, impose nodes, lock domains, remove the generated mesh on domains, remesh domains with a different mesh method), use the Mesh Edition toolbar.
    To learn more about how to use the Mesh Edition toolbar, see Editing the Mesh of a Rule Based Surface Mesh Part.

  10. To view free edges in the model, click Free Edges . See Displaying Free Edges for more information.

  11. To define a cutting plane, click Cutting Plane . See Cutting Plane for more information.

  12. To check for interference between parts of the mesh, click Interferences .

    See Checking Intersections / Interferences for more information.  Mesh part selection is not available when checking interferences in a rule based surface mesh because there is only one mesh part.

  13. To verify the quality of the mesh, click Quality Analysis .
    The Quality Analysis dialog box appears containing the following tools:

    These tools work the same as the comparable tools for the Advanced Surface Mesher. However, there are fewer options in the Rules Based Surface Mesher because many element quality parameters are established when you create the rules file for the mesh; the mesh automatically meets these parameters.

  14. To exit the Rule Based Surface Mesh editor, click Exit or close the Rule Based Mesh Editor window.