POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
A grid trimesh is a irregular network of triangular faces which represents a surface. Neighbor triangles are constrained to share two of their nodes.
- identifier (M, K, I: ndt_identifier) (C037)
- The name or identifier of this grid. Inherited from grid_or_mesh.
- edge_node (M: ndt_mesh_edge)
- A list of edge numbers and their start and end node numbers. Each pair of start and end node numbers shall be unique within the mesh edges.
- face_node (M: ndt_mesh_face)
- A list of mesh face numbers with the three mesh node numbers that define each mesh face.
- n_node (M: ndt_pint4)
- The number of mesh nodes.
- description (O, I: ndt_comment) (C117)
- A remark or comment about the instance. Inherited from e_and_p_data.
- instance_create_date (O, I: ndt_date_tod) (C126)
- This is the date that this instance was created. This date is defined by the source if imported, or is the date the instance is created if a new instance. Inherited from e_and_p_data.
- instance_creator (O, I: ndt_identifier) (C126)
- This is the person, company or application that created this instance. This identifies the party responsible for loading this instance. Inherited from e_and_p_data.
- last_updated (O, I: ndt_date_tod) (C126)
- This is the date that this instance was last updated. This value should be updated when any part of this instance is altered (except for inverse relationships). Inherited from e_and_p_data.
- last_updated_by (O, I: ndt_identifier) (C126)
- This records the person or application making the update to this instance. Inherited from e_and_p_data.
- source (O, I: ndt_identifier) (C126)
- The provider of this instance, which is usually a data provider for imported/purchased data. If this instance is provided by POSC, then this attribute must be "POSC". Inherited from e_and_p_data.
- data_collection (I, V: SET[0:?] data_collection_content(collection_part)) (C020)
- Indicates the data collections that include this instance of E and P data. Each grid_trimesh may be a member of one or more data_collection_content. Inherited from e_and_p_data.
- derived_interest (I, V: SET[0:?] derived_interest_makeup(interest_for)) (C071, C122)
- These are the ownership fractions for business associates of this object. Each grid_trimesh may be referenced by one or more derived_interest_makeup. Inherited from object_of_interest.
- document_information_content (I, V: SET[0:?] document_information_content(e_and_p_data)) (C136)
- These are the document specification parts that include this data value and define its meaning within a document specification. Each use may define a different meaning, and many uses are allowed. Each grid_trimesh may be included in one or more document_information_content. Inherited from e_and_p_data.
- graphical_element (I, V: SET[0:?] graphical_element(depicted_object))
- Specifies one or more graphical elements which are depicting this data item. Each grid_trimesh may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- involving_activity (I, V: SET[0:?] object_activity_involvement(involved_object)) (C056)
- This are the activity involvements which affect the object. Each grid_trimesh may have involvements with one or more object_activity_involvement. Inherited from object_of_interest.
Local rules:
- Uniqueness Constraint
- identifier
Supertype path(s):
Entity projects as table GRID_TRIMESH.
Referenced in Diagrams:
Generated on Tue Jul 10 15:43:17 2001
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