## siSubdivisionRuleType

### Description

Specifies the subdivision rule used for an approximated geometry selection.

### C# Syntax

    siSubdivisionRuleType.siCatmullClark                                        // 0
    siSubdivisionRuleType.siXSIDooSabin                                         // 2
    siSubdivisionRuleType.siLinearSubdivision                                   // 3

Constant | Value | Description
--- | --- | ---
siCatmullClark | 0 | Catmull-Clark subdivision rule.
siXSIDooSabin | 2 | XSI-Doo-Sabin subdivision rule.
siLinearSubdivision | 3 | Linear subdivision rule.

### Applies To

PolygonMesh.GetApproximatedMesh PolygonMesh.GetApproximatedMeshAndAttributes PolygonMesh::GetGeometryAccessor