Midsurface by Face Pairs dialog box

Solid Body
Select Solid Body	Lets you select the solid body on which to create the midsurface.
Faces to Exclude from Pairing
Select Face	When you select either Progressive or Thickness from the Strategy list, lets you exclude any selected faces from automatic face pairing. See Excluding faces from pairing for more information.
Face Pairing
Strategy	Controls the method the software uses to define the pairs of opposing faces.Select Progressive to have the software pair faces based on a rolling ball calculation.Select Thickness to pair the surfaces if the thickness between the two surfaces is less than the specified thickness value.Select Manual to manually define pairs of faces. Click Select Side 1 and Select Side 2 to specify the faces for each side of the pair. Use the Side 2 Search options to have the software search for appropriate faces for side 2 of the pair.For more information, see Understanding face pair creation.
Thickness Ratio (D/T)	Available if you select Progressive or Thickness from the Strategy list.Creates face pairs based upon the sizes of faces relative to their thickness. The software divides the smallest characteristic length of a face (D) by the maximum local thickness (T) between the two faces to be paired.If you decrease the Thickness Ratio (D/T) value, the software finds more face pairs.If you increase the Thickness Ratio (D/T) value, the software finds fewer face pairs.
Merge Angle Tolerance	Merges the face pairs when the angle between the individual pairs is less than the value you specify.
Automatically Create Face Pairs	If you select Thickness or Progressive from the Strategy list, automatically creates face pairs.
Side 2 Search
Search Distance	Lets you specify the distance the software should search from the specified side 1 faces to find faces for side 2.
Dynamic Search	With the Manual strategy, once you define the faces for side 1, select the Dynamic Search check box and then click Dynamic Search to have the software find faces for side 2 of the pair. See Using the Side 2 Search option with manual pairing for more information.
Replacement Mid-Sheet****Select Object	Lets you select a different face, sheet body, or datum plane to use as the mid-sheet for the selected face pair. For more information, see Insert a replacement mid-sheet into a face pair.
Create Face Pair	Manually creates a face pair using the side 2 faces that the software found through Dynamic Search.
Modify Face Pair	Lets you change the faces that belong to each side of the pair.
Face Pair List
Reverse Face Pair	Click Reverse Face Pair to reverse side 1 and side 2 in the selected face pair.For more information, see Working with the Face Pair list.
Merge Face Pairs	Select two or more face pairs from the list and click Merge Face Pairs to merge multiple pairs into a single face pair. The software merges all side 1 faces into a combined side 1 face and all side 2 faces into a combined side 2 face.
Delete Face Pair	Click Delete Face Pair to remove the selected face pair from the list.For more information, see Working with the Face Pair list.
Advanced Trimming Tools
Trim to Side 1 Faces	Trims the mid-sheet based on the boundaries of side 1 in the face pair.
Trim to Solid Body	Trims the mid-sheet based on the boundaries of the associated solid body.
Skip Trimming	When you use the Replacement Mid-Sheet option, controls whether the software trims that replacement mid-sheet. If you click Skip Trimming, the software does not trim the replacement mid-sheet against the solid body, the faces in the pair, or against the neighboring mid-sheets. Use Skip Trimming when you want to use the replacement mid-sheet body without any modifications to its size or shape.
Standard Trimming	Trims the mid-sheet based on the bounds of the faces that comprise both side 1 and side 2 in the pair. This is the default trimming method for all pairs.
For more information on the trimming tools, see Understanding midsurface creation and trimming methods.
Advanced Midsurface Tools
Use Side 1	Creates the mid-sheet directly on the faces in side 1 of the pair.
Offset	Creates the mid-sheet by offsetting a surface from side 1 of the face pair.
Cloud of Points	Creates a mid-sheet from a sampling of points that the software takes between sides 1 and 2.
Use Largest Face	Uses the face in side 1 that has the largest surface area as the mid-sheet.
Standard	Creates the mid-sheet using the method that the software determines is most appropriate for the face pair.
For more information on the mid-sheet creation tools, see Understanding midsurface creation and trimming methods.
Display Options
Hide Solid Body Upon Apply	Turns off the display of the solid body once you click OK or Apply. Hiding the solid body lets you more easily view and work with the midsurface.
Show Pairing Faces as Transparent	Temporarily displays all faces that belong in a face pair as transparent.
Show Midsheets as Transparent	Temporarily displays the individual midsheets as transparent.
Preview
Preview	Click Preview to preview the midsurface.

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Midsurface by Face Pairs dialog box, Simcenter 3D 2021.1 Series

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