bgeot::geotrans_inv Class Reference

handles the geometric inversion for a given (supposedly quite large) set of points More...

#include <bgeot_geotrans_inv.h>

Inherited by getfem::mesh_trans_inv.

Public Member Functions
template<class CONT >
void	add_points (const CONT &c)
	Add the points contained in c to the list of points.
size_type	nb_points (void) const
	Number of points.
size_type	add_point (base_node p)
	Add point p to the list of points.
size_type	points_in_box (kdtree_tab_type &ipts, const base_node &min, const base_node &max) const
	Find all the points present in the box between min and max.
template<class TAB , class CONT1 , class CONT2 >
size_type	points_in_convex (const convex< base_node, TAB > &cv, pgeometric_trans pgt, CONT1 &pftab, CONT2 &itab, bool bruteforce=false)
	Search all the points in the convex cv, which is the transformation of the convex cref via the geometric transformation pgt. More...

Detailed Description

handles the geometric inversion for a given (supposedly quite large) set of points

Definition at line 178 of file bgeot_geotrans_inv.h.

Member Function Documentation

points_in_convex()

template<class TAB , class CONT1 , class CONT2 >

size_type bgeot::geotrans_inv::points_in_convex	(	const convex< base_node, TAB > &	cv,
		pgeometric_trans	pgt,
		CONT1 &	pftab,
		CONT2 &	itab,
		bool	bruteforce = false
	)

Search all the points in the convex cv, which is the transformation of the convex cref via the geometric transformation pgt.

IMPORTANT : It is assumed that the whole convex is include in the minmax box of its nodes times a factor 1.2. If the transformation is linear, the factor is 1.0.

Parameters

cv	the convex points (as given by getfem_mesh::convex(ic)).
pgt	the geometric trans (as given by getfem_mesh::trans_of_convex(ic)).
pftab	container for the coordinates of points in the reference convex (should be of size nb_points())
itab	the indices of points found in the convex.
bruteforce	use a brute force search(only for debugging purposes).

Returns

the number of points in the convex (i.e. the size of itab, and pftab)

Definition at line 242 of file bgeot_geotrans_inv.h.

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

• src/getfem/bgeot_geotrans_inv.h