PCL Reference Manual > Finite Element Functions > Introduction
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Introduction
This chapter documents the functions that are used in the implementation of the “Finite Elements” switch bar form.
This chapter presents function descriptions in ten separate sections:
 
This section is used to describe some of the functions used to create finite element model (FEM) nodes, elements, multi-point constraints (MPCs), meshes, and mesh seeds.
This section is used to describe some of the functions used to mirror, rotate, and translate finite element model (FEM) nodes, elements, multi-point constraints (MPCs), meshes, and mesh seeds.
This section is used to describe some of the functions used to duplicate and/or translate finite element model (FEM) nodes, elements, multi-point constraints (MPCs), meshes, and mesh seeds through the use of sweep operations.
Sweeping elements is the process of creating higher order elements by sweeping a lower order element through a prescribed path. Therefore, a hexagonal element may be created by sweeping a quadrilateral element through space, the edges of the hexagonal being defined by the corners of the quadrilateral as its nodes move along the path. Ten methods for defining the swept paths are provided: arc, extrude, glide, glide-guide, normal, radial cylindrical, radial spherical, spherical theta, vector field and loft.
This section is used to describe some of the functions used to renumber the identifiers used to reference a selection of finite element model (FEM) nodes or elements.
This section is used to describe some of the functions used to reduce all of the finite element model (FEM) nodes that coexist at a point in the model space to a single node.
This section is used to describe some of the functions used to optimize entities in a finite element model (FEM).
The optimization process will renumber the nodes or elements of a model in such a way that the stiffness matrix assembled in a finite element analysis can be solved by using a minimum of CPU time, memory, and disk space.
This section is used to describe some of the functions used to verify entities in a finite element model (FEM).
The verification of a finite element model consists of a number of different tests which can be performed to check the validity of a finite element model. These tests include checks of element distortion, element duplication, model boundaries, nodal connectivity, and node and element identifier numbering.
This section is used to describe some of the functions used to modify elements and nodes in a finite element model(FEM).
This section is used to describe some of the function used to delete elements, nodes, and meshes from a finite element model (FEM).
This section is used to describe a variety of finite element model (FEM) utility functions.