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Terminology


Midsurface - is the sheet body which is created halfway between two defining faces. The points and normals of the parent faces are averaged at corresponding parameters. The properties of a midsurface are exactly the same as any other sheet body. The only difference is that a midsurface is associated with its parent face pairs.

Midsurface Feature - refers to a feature that provides you with the ability to create and manipulate a list of midsurfaces and their defining face pairs.

Face Pair Feature - refers to the fundamental building block of a midsurface feature. It contains two lists of opposing faces and the resulting midsurface.

Defining Face - is the face of a solid body used to create a midsurface.

Side Faces - refer to faces in one of two sets of opposing face pairs.

Seed Face - is a face on the solid. For sheet metal parts, any face on either side of the solid can be selected as the seed face.

Boundary Face - is defined automatically. The system calculates whether a given face has an edge which is connected to a face and the normals on the two faces are about 90 degrees apart. This connected face is defined as a boundary face when the face contains the edges in the thickness direction.

Cliff Angle - is measured as the angle between the normals of the two adjacent faces at a point on the common edge.



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