Entities

Defines entities used in the project

• This file is a part of the coursework module Personal Programming Project (PPP) in M.Sc. Computational Materials Science, Technische Universität Bergakademie Freiberg.

• This file is a part of the project Modeling of radiative heat-exchange using finite element method

This file defines fundamental entities that are used across the model.

class entities.Element(number: int, typ: int, n_tags: int, tags: list, nodes: list)

Bases: object

Class to represent element entity.

Parameters:

• number (int) – Number to be assigned to the element.

• typ (int) – Type to be assigned to the element.

• n_tags (int) – Number of tags of the element.

• tags (list) – Tags of the element.

• nodes (list) – Connectivity of the elements.

number

Non-zero number indicating the number assigned to an element.

Type:

int

nodesArray

Array consisting of tags of the nodes that belong to the element.

Type:

numpy.array

elemType

Non-zero integer representing the type of the element as defined by GMSH documentation.

Type:

int

property connectivity: array

Node tags present in the element.

property elemType: int

Type of the element as given in the mesh file.

property number: int

Number assigned to the element as given in mesh file.

property physicalGroup: int

Describes which group the element belongs to.

class entities.Node(tag: int, coordinates: list)

Bases: object

Class to represent Node entity.

Parameters:

• tag (int) – Tag to be given to the node.

• coordinates (list) – Coordinates to be assigned to the node entity.

tag

Tag given to the node.

Type:

int

coordinates

Coordinates of the node in [x y z] form in a cartesian coordinate system.

Type:

numpy.array

property coordinates: array

Coordinates of the node.

property tag: int

Tag of a node as given in the mesh file.