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Setting Connector Defaults

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In this DIY exercise we will learn how to set defaults to automatically create unstructured surface meshes on the pipe geometry seen below.

  1. Go to the Defaults panel.

  2. Please note, that Defaults will only affect the entities you are about to create. So any entities you create, are going to inherit the values you specify for the defaults.

    The Dimension frame provides default settings for connector Dimension, Average Δs, Max. Dimension, Max. Angle and Max. Deviation.

    Setting Connector Defaults

    The default number of grid points will be calculated based on the definition of Dimension or Average Δs. If Max. Angle and/or Max. Deviation are also specified, points may be added to the default grid points of the new connectors to satisfy Max. Angle and/or Max. Deviation.

    Max. Dimension is unique to the Defaults panel and sets a dimension cap for all new connectors. This setting only affects use of the Average Δs, Max. Angle and Max. Deviation options since otherwise connector dimension using these settings would be unlimited.

  3. Enter 0.5 for Average Δs.
  4. Select the pipe database surfaces.
  5. Click Domains on Database Entities on the toolbar.

    You will notice that the surface mesh is rather faceted - it is pretty coarse. Let us try using curvature based refinement.

  6. Undo
  7. Enter 5 for Max Angle.
  8. Select the pipe database surfaces.
  9. Click Domains on Database Entities on the toolbar.
  10. You will notice some refinement at the ends of the pipe. Points have been added so that the turning angle specified is not violated. However, the long connector that runs the length of the pipe is still coarse. We will refine it using the curvature that exists in the transverse direction:

  11. Undo
  12. Toggle on Use Surface Curvature in the Defaults tab.
  13. Select the pipe database surfaces.
  14. Click Domains on Database Entities on the toolbar.

  15. As you can see, we now have a much better surface mesh that captures the shape of the pipe.

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