# 14.7.3.61 UnstructuredGridHingeNodeFaces

Topic Version | 1 | Published | 09/11/2015 | |

For Standard | RESQML v2.0.1 | |||

Stereotypes: | XSDcomplexType |

Hinge nodes define a triangulated interpolation on a cell face. In practice, they arise on the K faces of column layer cells and are used to add additional geometric resolution to the shape of the cell. The specification of triangulated interpolation also uniquely defines the interpolation schema on the cell face, and hence the cell volume.

For an unstructured cell grid, the hinge node faces need to be defined explicitly.

This hinge node faces data object is optional and is only expected to be used if the hinge node faces higher order grid point attachment arises. Hinge node faces are not supported for property attachment. Instead use a subrepresentation or an attachment kind of faces or faces per cell.

BUSINESS RULE: Each cell must have either 0 or 2 hinge node faces, so that the two hinge nodes for the cell may be used to define a cell center line and a cell thickness.

Name |
Data Type |
Notes |
---|---|---|

Count |
positiveInteger |
Number of K faces. This count must be positive. |

FaceIndices |
AbstractIntegerArray |
List of faces to be identified as K faces for hinge node geometry attachment. BUSINESS RULE: Array length equals K face count. |

Derived From: (none)

Derived Classes: (none)

Relationships: None