Defining model feature edges

The common and superimposed plot options determine which model edges appear in all plot states. When you specify that only feature edges are to be visible, Abaqus/CAE determines which edges meet this criteria. Feature edges lie between elements having normals that differ by more than the feature angle. You can customize the feature angle. Larger angles will reduce the number of feature edges; conversely, smaller angles will cause more edges to be visible. The default is 20°. The setting of the feature angle applies to all plot states. However, all segment edges are drawn for analytical rigid surfaces regardless of the feature angle setting.

Related Topics
Controlling element and surface edge visibility
Defining mesh feature edges

Context:

In Figure 1 the plot on the left shows feature edges when the feature angle is set to 0°, the plot in the middle shows feature edges on the same model but with the feature angle set to 15°, and the plot on the right shows the model with the feature angle set to 30°.

Figure 1. Plots showing feature angles of 0°, 15°, and 30°.

  1. Locate the Feature Angle options.

    From the main menu bar, select ViewODB Display Options. Click the General tab in the dialog box that appears. The Feature Angle options are at the bottom of the General page.

  2. Drag the Feature Angle slider to the desired feature angle.

  3. Click Apply to implement your changes.

    Feature edges for all plot states change to reflect your feature angle specification. By default, your feature angle specification is saved for the duration of the session. If you want to retain this change for subsequent sessions, save it to a file. For more information, see Saving customizations for use in subsequent sessions.