MeshGeoToolsLib::BoundaryElementsOnSurface Class Reference

Detailed Description

This class collects element faces located along a surface. Note that internal faces are not collected in this class.

Definition at line 32 of file BoundaryElementsOnSurface.h.

#include <BoundaryElementsOnSurface.h>

Collaboration diagram for MeshGeoToolsLib::BoundaryElementsOnSurface:

Public Member Functions
	BoundaryElementsOnSurface (MeshLib::Mesh const &mesh, MeshNodeSearcher const &mshNodeSearcher, GeoLib::Surface const &sfc)
virtual	~BoundaryElementsOnSurface ()
	destructor
GeoLib::Surface const &	getSurface () const
std::vector< MeshLib::Element * > const &	getBoundaryElements () const

Private Attributes
GeoLib::Surface const &	_sfc
std::vector< MeshLib::Element * >	_boundary_elements

Constructor & Destructor Documentation

BoundaryElementsOnSurface()

MeshGeoToolsLib::BoundaryElementsOnSurface::BoundaryElementsOnSurface	(	MeshLib::Mesh const &	mesh,
		MeshNodeSearcher const &	mshNodeSearcher,
		GeoLib::Surface const &	sfc )

Constructor

Parameters

mesh	a mesh object
mshNodeSearcher	a MeshNodeSearcher object which is internally used to search mesh nodes
sfc	a surface object where face elements are searched for

Definition at line 20 of file BoundaryElementsOnSurface.cpp.

    : _sfc(sfc)
{
    // search elements near the surface
    auto node_ids_on_sfc = mshNodeSearcher.getMeshNodeIDs(sfc);
    MeshLib::ElementSearch es(mesh);
    es.searchByNodeIDs(node_ids_on_sfc);
    auto& ele_ids_near_sfc = es.getSearchedElementIDs();
 
    // get a list of faces made of the nodes
    for (auto ele_id : ele_ids_near_sfc)
    {
        auto* e = mesh.getElement(ele_id);
        // skip internal elements
        if (!e->isBoundaryElement())
        {
            continue;
        }
        // find faces on surface
        for (unsigned i = 0; i < e->getNumberOfFaces(); i++)
        {
            auto* face = e->getFace(i);
            // check
            std::size_t cnt_match = 0;
            for (std::size_t j = 0; j < face->getNumberOfBaseNodes(); j++)
            {
                if (std::find(node_ids_on_sfc.begin(), node_ids_on_sfc.end(),
                              getNodeIndex(*face, j)) != node_ids_on_sfc.end())
                {
                    cnt_match++;
                }
                else
                {
                    break;
                }
            }
            // update the list
            if (cnt_match == face->getNumberOfBaseNodes())
            {
                _boundary_elements.push_back(
                    const_cast<MeshLib::Element*>(face));
            }
            else
            {
                delete face;
            }
        }
    }
}

References _boundary_elements, MeshLib::Mesh::getElement(), MeshGeoToolsLib::MeshNodeSearcher::getMeshNodeIDs(), MeshLib::ElementSearch::getSearchedElementIDs(), and MeshLib::ElementSearch::searchByNodeIDs().

~BoundaryElementsOnSurface()

MeshGeoToolsLib::BoundaryElementsOnSurface::~BoundaryElementsOnSurface ( )

virtual

destructor

Definition at line 72 of file BoundaryElementsOnSurface.cpp.

{
    for (auto p : _boundary_elements)
    {
        delete p;
    }
}

References _boundary_elements.

Member Function Documentation

getBoundaryElements()

std::vector< MeshLib::Element * > const & MeshGeoToolsLib::BoundaryElementsOnSurface::getBoundaryElements ( ) const

inline

Return the vector of boundary elements (i.e. faces). The elements are unsorted.

Definition at line 58 of file BoundaryElementsOnSurface.h.

{return _boundary_elements;}

References _boundary_elements.

getSurface()

GeoLib::Surface const & MeshGeoToolsLib::BoundaryElementsOnSurface::getSurface ( ) const

inline

Deploying this method the user can get access to the underlying GeoLib::Surface.

Returns

the underlying GeoLib::Surface

Definition at line 53 of file BoundaryElementsOnSurface.h.

{return _sfc;}

References _sfc.

Referenced by MeshGeoToolsLib::BoundaryElementsSearcher::getBoundaryElements().

Member Data Documentation

_boundary_elements

std::vector<MeshLib::Element*> MeshGeoToolsLib::BoundaryElementsOnSurface::_boundary_elements

private

Definition at line 62 of file BoundaryElementsOnSurface.h.

Referenced by BoundaryElementsOnSurface(), ~BoundaryElementsOnSurface(), and getBoundaryElements().

_sfc

GeoLib::Surface const& MeshGeoToolsLib::BoundaryElementsOnSurface::_sfc

private

Definition at line 61 of file BoundaryElementsOnSurface.h.

Referenced by getSurface().

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The documentation for this class was generated from the following files:

• MeshGeoToolsLib/BoundaryElementsOnSurface.h
• MeshGeoToolsLib/BoundaryElementsOnSurface.cpp