MeshQuality.h

Note

The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.

class MeshQuality

The class provides functions to quantify mesh quality

static CellFunction<double> radius_ratios(std::shared_ptr<const Mesh> mesh)

Compute the radius ratio for all cells.

Returns

CellFunction<double>

The cell radius ratio radius ratio geometric_dimension * * inradius / circumradius (geometric_dimension is normalization factor). It has range zero to one. Zero indicates a degenerate element.

Example

Note

std::shared_ptr<Mesh> mesh(new UnitCubeMesh(4, 4, 4)); CellFunction<double> = MeshQuality::radius_ratio(mesh);

static std::pair<double, double> radius_ratio_min_max(const Mesh& mesh)

Compute the minimum and maximum radius ratio of cells (across all processes)

Returns

std::pair<double, double>

The [minimum, maximum] cell radii ratio (geometric_dimension * * inradius / circumradius, geometric_dimension is normalization factor). It has range zero to one. Zero indicates a degenerate element.

Example

Note

Mesh UnitCubeMesh(4, 4, 4); std::pair<double, double> ratios

= MeshQuality::radius_ratio_min_max(mesh);

double min_ratio = ratios.first; double max_ratio = ratios.second;

static std::pair<std::vector<double>, std::vector<double>> radius_ratio_histogram_data(const Mesh& mesh, std::size_t num_intervals=50)

Create (ratio, number of cells) data for creating a histogram of cell quality

static std::string radius_ratio_matplotlib_histogram(const Mesh& mesh, std::size_t num_bins=50)

Create Matplotlib string to plot cell quality histogram