COMSOL 6.2 - Convert to Curve

To unite and convert geometry objects to a single curve object, in the toolbar, menu, click (

). You can also right-click the node to add this node from the submenu.

Then, enter the properties of the convert operation using the following sections:

Select the geometry objects that you want to convert in the Graphics window. The objects appear in the list.

Click the button to toggle between turning ON and OFF the selections.

Select the check box to use the selected geometry objects for further geometry operations.

Select the check box (selected by default) to unite the input objects before converting them. Clear the check box to convert each object independently. You can change the settings for the to control the union. Geometric entities that have a distance less than the repair tolerance are merged.

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The default value in the list is , which for 3D objects represented using the CAD kernel determines the repair tolerance internally. For 3D objects represented using the COMSOL kernel, and for 2D and 1D objects, means a relative repair tolerance of 10−6.

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Choose to enter a value for the field (the default is determined by the main node’s setting). This value is relative to the largest absolute value of the coordinates of all input objects.

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Choose to enter a value for the field (the default is determined by the main node’s setting). This value uses the same unit as the geometry sequence’s length unit.

When you build this feature, the relative and absolute repair tolerances are set to the values that are used (with a precision of two digits), which can be useful when first building with and then switching to manually modifying the tolerance.

Select the check box 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 (domains, boundaries, edges, and points) that the resulting objects consist of available as selections in all applicable selection lists (in physics and materials settings, for example), choose an option from the ( if in a geometry part; in a plane geometry under a work plane in a 3D component) list: , (2D), (3D), or . The default is in 2D and in 3D. These selections do not appear as separate selection nodes in the model tree. Select to not make any selection available outside of the geometry sequence. From the list, choose a color for highlighting the resulting objects selection. See Selection Colors.

If you want to make the resulting entities contribute to a cumulative selection, select a cumulative selection from the list (the default, , gives no contribution), or click the button to create a new cumulative selection (see Cumulative Selections).

If you have Named Selections that include entities on the input objects, select the (selected by default) check box to update the selections to corresponding entities on the output objects, when possible. Clear the check box to not propagate the selection to the resulting objects. This can be useful in combination with selecting the check box so that the selections refer only to the input objects.

From the list choose to make the resulting objects available only in the feature’s geometry sequence. The default option means that the resulting objects become construction geometry if all input objects are construction geometry. Choose to never output construction geometry objects. For more information, see Construction Geometry.