MeshToolsLib::EdgeRatioMetric Struct Reference

Detailed Description

Calculates the quality of mesh elements based on the ratio between shortest and longest edge of an element

Definition at line 16 of file EdgeRatioMetric.h.

#include <EdgeRatioMetric.h>

Inheritance diagram for MeshToolsLib::EdgeRatioMetric:

Collaboration diagram for MeshToolsLib::EdgeRatioMetric:

Public Member Functions
void	calculateQuality () override
	Calculates the quality metric for each element of the mesh.
	ElementQualityMetric (MeshLib::Mesh const &mesh)
Public Member Functions inherited from MeshToolsLib::ElementQualityMetric
	ElementQualityMetric (MeshLib::Mesh const &mesh)
virtual	~ElementQualityMetric ()=default
std::vector< double > const &	getElementQuality () const
	Returns the result vector.
virtual BaseLib::Histogram< double >	getHistogram (std::size_t n_bins=0) const

Additional Inherited Members
Protected Attributes inherited from MeshToolsLib::ElementQualityMetric
double	_min = std::numeric_limits<double>::max()
double	_max = 0
MeshLib::Mesh const &	_mesh
std::vector< double >	_element_quality_metric

Member Function Documentation

calculateQuality()

void MeshToolsLib::EdgeRatioMetric::calculateQuality ( )

overridevirtual

Calculates the quality metric for each element of the mesh.

Implements MeshToolsLib::ElementQualityMetric.

Definition at line 11 of file EdgeRatioMetric.cpp.

{
    auto const& elements(_mesh.getElements());
    auto const n_elements(_mesh.getNumberOfElements());
    for (std::size_t k(0); k < n_elements; k++)
    {
        auto const& elem(*elements[k]);
        std::unique_ptr<MeshLib::Element const> first_edge{elem.getEdge(0)};
        auto sqr_min_edge_length =
            MathLib::sqrDist(*first_edge->getNode(1), *first_edge->getNode(0));
        auto sqr_max_edge_length = sqr_min_edge_length;
        auto const n_edges(elem.getNumberOfEdges());
        for (std::size_t i = 1; i < n_edges; i++)
        {
            std::unique_ptr<MeshLib::Element const> edge{elem.getEdge(i)};
            auto const sqr_edge_length =
                MathLib::sqrDist(*edge->getNode(1), *edge->getNode(0));
            if (sqr_edge_length < sqr_min_edge_length)
            {
                sqr_min_edge_length = sqr_edge_length;
            }
            if (sqr_edge_length > sqr_max_edge_length)
            {
                sqr_max_edge_length = sqr_edge_length;
            }
        }
        _element_quality_metric[k] =
            std::sqrt(sqr_min_edge_length / sqr_max_edge_length);
    }
}

References MeshToolsLib::ElementQualityMetric::_element_quality_metric, MeshToolsLib::ElementQualityMetric::_mesh, and MathLib::sqrDist().

ElementQualityMetric()

MeshToolsLib::ElementQualityMetric::ElementQualityMetric ( MeshLib::Mesh const & mesh )

explicit

Definition at line 22 of file ElementQualityMetric.cpp.

    : _mesh(mesh)
{
    _element_quality_metric.resize(_mesh.getNumberOfElements(), -1.0);
}

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

• EdgeRatioMetric.h
• EdgeRatioMetric.cpp