 
            | Solid Edge Constants Type Library : KeyPointExtentConstants Enumeration | 
| Member | Value | Description | 
|---|---|---|
| igInteriorReverseTangentNormal | 4 | Key-point Extent - Interior Reverse Tangent Normal | 
| igInteriorTangentNormal | 3 | Key-point Extent - Interior Tangent Normal | 
| igReverseTangentNormal | 2 | Key-point Extent - Reverse Tangent Normal | 
| igTangentNormal | 1 | Key-point Extent - Tangent Normal |