Custom Threshold Options

Property	Description
Name	Specifies the name of the custom threshold.
Type	Specifies the type of threshold.
Global Free Edges	Selects edges identified as global free edges. A global free edge is one that belongs to one face only in any context. Edges that are shared between parts are not marked as global free edges. The regular free edge diagnostic, in contrast, always considers all free edges from a per-part perspective and marks part-to-part perimeters as being free. See Surface Repair Error Categories: Free Edges. A baffle edge that is not joined to any other faces is marked as a global free edge. This behavior is useful for identifying problems when imprinting baffle edges onto another surface. Any edges on a baffle surface that fail to imprint are marked as global free edges, making them easier to identify.
Face Quality	Selects faces according to the face quality measure. See Surface Error Repair Categories: Face Quality.
Face Proximity	Selects faces according to the face proximity measure. See Surface Repair Error Categories: Face Proximity.
Face Area	Selects faces according to face area.
Edge Length	Selects edges according to edge length.
Edge Dihedral Angle	Selects manifold and non-manifold edges according to the angle between the face normals of the connected faces of the edge. For non-manifold edges, the nearest neighbor faces are used for each angle calculation.
Duplicate Faces	Selects faces identified as duplicates. Duplicate faces exist when the three vertices of a given triangle are shared by another triangle, potentially in a different part. A duplicate face is a subset of the face proximity diagnostic, meaning that the same faces are flagged as close proximity faces if the diagnostic is enabled. Having duplicate faces on the geometry can lead to meshing issues downstream. See Surface Repair Error Categories: Face Proximity. A pair of duplicate faces belong to the per-part result subset if both faces belong to the same part. A pair of duplicate faces belong to the part to part result subset if each face belongs to a different part. If a duplicate face pair exists on a contact, then the duplicate face pair automatically belong to the part to part subset. If the non-contact duplicate face is of the same face type as the contact face types, then the faces will also be flagged as per-part faces. To repair duplicate faces, use the Merge Duplicate Faces tool. See Merging Duplicate Faces.
Color	Specifies the color to apply to issues detected by the custom threshold.
Use distance based intersection(Pierced Faces Only)	When activated, a distance-based computation is used for the pierced faces diagnostic rather than the exact precision computation. The advantage of the distance-based check is that it captures locations in the surface that are nearly intersecting, but which become intersecting after subsequent operations in the volume meshing pipeline. Use this option when you are experiencing volume meshing issues that you suspect are related to surface intersections. Because the volume meshers use a distance-based check for intersections, this option provides a comparable level of scrutiny. The results generated from the option contain all the results from the exact precision calculation plus additional results which satisfy the distance based calculation. The automatic repair tool in surface repair is impacted by the state of the Use distance based intersection option because it depends on the pierced faces diagnostic results. If youactivate this option then both the exact precision and distance based pierced faces or edges are considered for repair.
Operator	Above	The tool searches for all values higher than the one you specify in the Value entry field.
Below	The tool searches for all values lower than the one you specify in the Value entry field.
Between	The tool searches for all values higher than the one that you specify in the Min entry field but lower than the one you specify in the Max entry field.
Not Between	The tool searches for all values lower than the one that you specify in the Min entry field but higher than the one you specify in the Max entry field.
Value/Min	Specifies the value to use with the Operator. Depending on the operator you specify, this field can appear as Value or Min.
Max	Specifies the maximum value for the operator.

Name

Specifies the name of the custom threshold.

Type

Specifies the type of threshold.

Global Free Edges

Selects edges identified as global free edges. A global free edge is one that belongs to one face only in any context. Edges that are shared between parts are not marked as global free edges. The regular free edge diagnostic, in contrast, always considers all free edges from a per-part perspective and marks part-to-part perimeters as being free. See Surface Repair Error Categories: Free Edges.

A baffle edge that is not joined to any other faces is marked as a global free edge. This behavior is useful for identifying problems when imprinting baffle edges onto another surface. Any edges on a baffle surface that fail to imprint are marked as global free edges, making them easier to identify.

Face Quality

Selects faces according to the face quality measure. See Surface Error Repair Categories: Face Quality.

Face Proximity

Selects faces according to the face proximity measure. See Surface Repair Error Categories: Face Proximity.

Face Area

Selects faces according to face area.

Edge Length

Selects edges according to edge length.

Edge Dihedral Angle

Selects manifold and non-manifold edges according to the angle between the face normals of the connected faces of the edge. For non-manifold edges, the nearest neighbor faces are used for each angle calculation.

Duplicate Faces

Selects faces identified as duplicates. Duplicate faces exist when the three vertices of a given triangle are shared by another triangle, potentially in a different part. A duplicate face is a subset of the face proximity diagnostic, meaning that the same faces are flagged as close proximity faces if the diagnostic is enabled. Having duplicate faces on the geometry can lead to meshing issues downstream. See Surface Repair Error Categories: Face Proximity.

A pair of duplicate faces belong to the per-part result subset if both faces belong to the same part. A pair of duplicate faces belong to the part to part result subset if each face belongs to a different part. If a duplicate face pair exists on a contact, then the duplicate face pair automatically belong to the part to part subset. If the non-contact duplicate face is of the same face type as the contact face types, then the faces will also be flagged as per-part faces.

To repair duplicate faces, use the Merge Duplicate Faces tool. See Merging Duplicate Faces.

Color

Specifies the color to apply to issues detected by the custom threshold.

Use distance based intersection(Pierced Faces Only)

When activated, a distance-based computation is used for the pierced faces diagnostic rather than the exact precision computation. The advantage of the distance-based check is that it captures locations in the surface that are nearly intersecting, but which become intersecting after subsequent operations in the volume meshing pipeline.

Use this option when you are experiencing volume meshing issues that you suspect are related to surface intersections. Because the volume meshers use a distance-based check for intersections, this option provides a comparable level of scrutiny. The results generated from the option contain all the results from the exact precision calculation plus additional results which satisfy the distance based calculation.

The automatic repair tool in surface repair is impacted by the state of the Use distance based intersection option because it depends on the pierced faces diagnostic results. If youactivate this option then both the exact precision and distance based pierced faces or edges are considered for repair.

Operator

Above

The tool searches for all values higher than the one you specify in the Value entry field.

Below

The tool searches for all values lower than the one you specify in the Value entry field.

Between

The tool searches for all values higher than the one that you specify in the Min entry field but lower than the one you specify in the Max entry field.

Not Between

The tool searches for all values lower than the one that you specify in the Min entry field but higher than the one you specify in the Max entry field.

Value/Min

Specifies the value to use with the Operator. Depending on the operator you specify, this field can appear as Value or Min.

Max

Specifies the maximum value for the operator.