DMPlexMetricGetHausdorffNumber#

Get the metric Hausdorff number

Synopsis#

#include "petscdmplex.h"   
PetscErrorCode DMPlexMetricGetHausdorffNumber(DM dm, PetscReal *hausd)

Input parameters#

dm - The DM

Output parameters#

hausd - The metric Hausdorff number

Notes#

The Hausdorff number imposes the maximal distance between the piecewise linear approximation of the boundary and the reconstructed ideal boundary. Thus, a low Hausdorff parameter leads to refine the high curvature areas. By default, the Hausdorff value is set to 0.01, which is a suitable value for an object of size 1 in each direction. For smaller (resp. larger) objects, you may need to decrease (resp. increase) the Hausdorff parameter. (Taken from https://www.mmgtools.org/mmg-remesher-try-mmg/mmg-remesher-options/mmg-remesher-option-hausd).

This is only used by Mmg and ParMmg (not Pragmatic).