Remove Details
From the Virtual Operations menu in the context menu when right-clicking a 3D Geometry node or directly from the Geometry ribbon toolbar, choose Remove Details () to add a node with settings for automatically remove small details from the geometry. Small details include short edges and small and narrow (sliver) faces, which may complicate the meshing and make the model more difficult to solve. The Settings window contains the following sections:
Automation
The default in the Mode of operation list is Automatic. Typically, use the automatic mode first. The Remove Details operation generates and builds a local sequence of virtual operations. You can then switch to Manual if needed to inspect the added virtual operations and fine-tune and add more such operations. When you have built the Remove Details node and the Mode of operation list is set to Manual, the created virtual operations are available as subnodes to the Remove Details node. Alternatively, right-click the Remove Details node and choose Edit Generated Sequence (). You can also then right-click the Remove Details node to add more virtual operations. If you want to restore the generated sequence of virtual operations, choose Reset to the Generated Sequence () from the Remove Details node’s context menu.
The following sections are only available when the Mode of operation list is set to Automatic.
Entities to Process
The default is to remove small details from the entire geometry. From the Entities list, choose Selection instead of Entire geometry to make a selection of entities for which you want to remove small details.
If you choose Selection, the Geometric entity level list appears with the options Domain (the default), Boundary, and Edge. If the geometry sequence includes user-defined selections, you can choose one of them from the Selection list; otherwise, or if you choose Manual from the Selection list, select entities from the Graphics window or by pasting selections into the list of selected entities.
Details to Remove
This section contains the following check boxes that specifies what type of repair issues to address:
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 Vertices with continuous tangent. This check box controls whether each vertex that is adjacent to two edges with C1 continuity across the vertex, and that is not isolated in any face, is ignored.
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 Short edges
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 Small faces
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 Sliver faces
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 Thin domains. When this check box is selected, the software automatically removes domains with a thickness less than the specified detail size (see below).
Not all types of details to remove are always applicable, depending on the chosen geometric entity level. For example, the Thin domains check box is only applicable if the selection is the entire geometry or a domain selection.
All check boxes are selected by default. When the remove details operation has finished, information about the number of removed details appears in the table under Information.
Parameters
In this section you can control the parameters that determine the size of details to remove.
From the Detail size list, choose Automatic (the default), Relative, or Absolute. If you choose Relative the Maximum relative size field appears (default value: 0.001). If you select Absolute, the Maximum absolute size field appears (default value: 0.001 times the size of the geometry’s bounding box). When you build this feature, the Maximum relative size and the Maximum absolute size are set to the values that are used, which can be useful when you have set Detail size to Automatic.
The values in the Continuous tangent tolerance field (default value: 5 degrees) specifies the maximum allowed angular tangent deviation across a vertex or edge to be ignored.
Information
This section contains information about the removed details: In the Type of removal column, the types of details that have been removed are listed. In the Removed entities column, the number of entities for each type of remove operation is listed.
Click Build Selected () (or press F7) to build the geometry up to and including this node, click Build Preceding () (or press F6) to build the geometry up to the node preceding this node, or click Build All () (or press F8) to build all nodes in the geometry sequence.