easifemClasses

The easifemClasses (henceforth, the Classes) library, forms the second level of EASIFEM library. This library contains many useful high-level objects, which are important for implementing FEM. The main programming paradigm of Classes library is object-oriented programming.

Use association

USE easifemClasses

Key features

Structure

• TODO add key-features to easifemClasses

Similar to the Base library, the Classes library has two directories in the src directory:

1. modules
2. submodules

The modules directory mainly contains following items:

1. Type definition including methods
2. Header and interface of methods

The 📁submodules directory contains the implementation of the methods that are defined in the modules directory.

• In addition, each class has its own subdirectory in the modules and submodules directory.
• For example, the directory of Domain_ class is Domain, the directory of Mesh_ class is Mesh.
• In this way, modules/Domain will define the Domain_ class and interface of methods, whereas submodules/Domain will include the submodules that implementes the methods defined inside modules.
• The name of the module which defines Domain_ class is Domain_Classs, and it is included in the file called Domain_Class.F90.
• The submodule, which defines methods (for example, constructor methods) will be included in Domain_Class@ConstructorMethods.F90, Domain_Class@IOMethods, etc.

info

If you want to implement a class called XXX_, then perform following task:

1. Make a subdirectory XXX in src/modules and src/submodules
2. In both XXX make a subdirectory XXX/src
3. Create a file modules/XXX/src/XXX_Class.F90 and define a module called XXX_Class:
4. Create submodules in submodule/XXX/src/XXX_Class@CategoryofMethods.F90 and implement the methods.

MODULE XXX_Class
!! Use modules
PRIVATE
!!  Define class here
END MODULE XXX_Class

Modules

easifemClasses currently contains following modules:

Module	Comment	Category
Gmsh_Class	Interface to Gmsh library	Mesh
CommandLine_Method	Fortran library for making comand line applications.	CLI
ExceptionHandling_Class	Fortran library for error handling	Utility
FPL_Method	Fortran parameter list	FEM
Files	Collection of modules related to File IO.	IO
ElementFactory	Finite element factory	FEM
IntList_Class	Linked list of integers	Container
RealList_Class	Linked list of reals	Container
StringList_Class	Linked list of strings	Container
ElementList_Class	Linked list of finite elements	FEM
ElementPointerVector_Class	Dynamic vector of element pointers	FEM
Mesh_Class	Finite element mesh class	FEM
MeshPointerVector_Class	Dynamic vector of mesh pointers	FEM
Domain_Class	Domain class	FEM
DomainUtility	A module for additional methods on Domain.	FEM
DomainConnectivity_Class	Domain connectivity class	FEM
MeshSelection_Class	A class for selecting the region of domain.	FEM
MSHFile_Class	Class for Gmsh`s msh file	FEM
AbstractVector_Class	Abstract class for vectors.	FEM
Vector_Class	Concrete class for vectors.	FEM
Field	Collection of modules which defines classes for finite element fields.	FEM
FieldFactory	Factory for fields	FEM
AbstractLinSolver_Class	Abstract class for linear solver	FEM
LinSolver_Class	Native linear solver class.	FEM
LinSolver_Factory	Factory for linear solvers.	FEM
AbstractBC_Class	Abstract class for boundary conditions	FEM
DirichletBC_Class	Class for Dirichlet boundary conditions.	FEM
NeumannBC_Class	Class for Neumann boundary conditions.	FEM
NitscheBC_Class	Class for Nitsche boundary conditions.	FEM
PolynomialFactory	Factory of polynomials	FEM
UserFunction_Class	User function class	FEM
RefElementFactory	Factory of reference elements	FEM
FiniteElementFactory	Factory of finite elements.	FEM
Tree3R_Class	Tree data structure for 3 term recurrence relation.	Math
Plot_Method	Collection of methods for plotting.	FEM