2.3.1 The NOPO data structure HREF="./Modulef.css" TITLE="Modulef CSS"> ALT="Modulef"> ALT="previous"> ALT="up"> ALT="next"> ALT="contents"> ALT="index"> ALT="[BIG]"> ALT="[Normal]"> ALT="[small]"> Next: 2.3.2 Modification of the numbers Up: 2.3 Main ideas Prev: 2.3 Main ideas >Index >Contents 2.3.1 The NOPO data structure This structure contains the following information (see chapter 1): the nature of the element; the list of the vertices of the element; the element connectivity and topology; the number and list of the nodes; the coordinates of the vertices; the physical attributes of the element: a sub-domain number number and references. The MODULEF code stores this information in a NOPO type data structure, constituting the natural interface between the different mesh modules. Remark: The sub-domains : The notion of materials is refined to distinguish between two identical media subject to different conditions: as many sub-domain numbers are assigned as required to make this distinction; The references : This attribute has two functions: to characterize the items (edges, faces and points) with respect to a boundary condition type treatment (loads, prescribed values, etc.) to describe a boundary from a geometric point of view: i.e. to associate a curve or surface equation to a portion of the boundary. As many reference numbers are assigned as required in order to incorporate the entire set of descriptions. ALT="Modulef"> ALT="previous"> ALT="up"> ALT="next"> ALT="contents"> ALT="index"> ALT="[BIG]"> ALT="[Normal]"> ALT="[small]"> Next: 2.3.2 Modification of the numbers Up: 2.3 Main ideas Prev: 2.3 Main ideas >Index >Contents
