Interval
To create one or several intervals for a 1D geometry, you can:
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Right-click the Geometry node and add an Interval node to the sequence then define it in the Settings window, or
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On the 1D Geometry toolbar Primitives group, click Interval (). Or from the Draw group, click Interval and create an interval by clicking in the Graphics window. Also see Drawing Geometric Primitives in the Graphics Window.
When you have added a node or finished drawing the interval in the Graphics window, you can use the following section to define it or fine tune it.
Interval
Enter the coordinates of the endpoints of the interval in the Left endpoint and Right endpoint fields. To get an object consisting of a sequence of connected intervals, change Number of intervals from One to Many, and enter a comma-separated list of coordinates in the Points field.
Selections of Resulting Entities
If you want to make the resulting entities contribute to a cumulative selection, select a cumulative selection from the Contribute to list (the default, None, gives no contribution), or click the New button to create a new cumulative selection (see Cumulative Selections).
Select the Resulting objects selection check box to create predefined selections (for all levels — objects, domains, and boundaries — that are applicable) in subsequent nodes in the geometry sequence. To also make all or one of the types of resulting entities (domains and boundaries) that the interval consists of available as selections in all applicable selection lists (in physics and materials settings, for example), choose an option from the Show in physics (Show in instances if in a geometry part) list: All levels, Domain selection, or Boundary selection. The default is Domain selection, which is suitable for use with materials and physics defined in domains. For use with a boundary condition, for example, choose Boundary selection. These selections do not appear as separate selection nodes in the model tree. Select Off to not make any selection available outside of the geometry sequence.