Point
Use a Point () node to add points to the geometry, as shown in Figure 7-28. This can be useful for physics properties assigned to points.
Figure 7-28: Isolated vertices (red) used to simulate a microphone array inside the geometry of a car cabin. A boundary is hidden for viewing purposes.
To create points, you can:
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For all space dimensions, right-click the Geometry node and add a Point node (in 2D and 3D from the More Primitives submenu) to the sequence and then define it in the Settings window, or
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On the 1D Geometry toolbar Primitives group, click Point (). Or from the Draw group, click Point and create a point by clicking in the Graphics window. Also see Drawing Geometric Primitives in the Graphics Window.
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On the 2D Geometry toolbar, from the Primitives group, select Point. Or from the Draw group in the Sketch toolbar, click Point and create a point by clicking in the Graphics window. Also see Drawing Geometric Primitives in the Graphics Window.
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On the 3D Geometry toolbar, from the More Primitives () menu, you can also select Point (), which then adds a Point node to the sequence. You can then define the point’s location in the Settings window for Point.
When you have added a node or finished drawing the point in the Graphics window, you can use the following section to define it or fine-tune it.
Point
Define the position of the point by entering its coordinates in fields labeled x, y (2D and 3D), and z (3D); r and z in 2D axial symmetry; xw and yw in work planes. To get several points, enter a list of coordinates in each of these fields. Separate the coordinates with commas or blanks.
Coordinate System
The coordinate system in which the point coordinates above are interpreted (for points in 3D geometries only). From the Take work plane from list, select This sequence (the default) to use a work plane earlier in the same geometry sequence, or choose a part instance earlier in the sequence to choose a work plane from that part. From the Work plane list, select xy-plane (the default, for a standard global Cartesian coordinate system) or select any work plane defined above this node in the geometry sequence. If you choose a work plane, the work plane and its coordinate system appear in the Graphics window, using an extra coordinate triad with the directions xw, yw, and zw (which are then used to specify the point’s position).
Selections of Resulting Entities
Select the Resulting objects selection checkbox to create predefined selections (for all levels — objects, domains, boundaries, edges, and points — that are applicable) in subsequent nodes in the geometry sequence. To also make all or one of the types of resulting entities (points) that the point 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; Show in 3D in a plane geometry under a work plane in a 3D component) list: All levels, or Point selection. The default is Point 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. From the Color list, choose a color for highlighting the resulting objects selection. See Selection Colors.
Cumulative Selection
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).
Assigned Attributes
This section is only available in 2D and 3D.
Select the Construction geometry checkbox to make the resulting objects available only in the feature’s geometry sequence. For more information, see Construction Geometry.