moab::SimplexTemplateTagAssigner Class Reference

#include <SimplexTemplateTagAssigner.hpp>

List of all members.

Public Member Functions
	SimplexTemplateTagAssigner (SimplexTemplateRefiner *)
	Construct a template tag assigner.
virtual	~SimplexTemplateTagAssigner ()
	Empty destructor for good form.
virtual void	operator() (const double *c0, const void *t0, EntityHandle h0, const double *cm, void *tm, const double *c1, const void *t1, EntityHandle h1)
	Given endpoint coordinates and tag values plus midpoint coordinates, compute midpoint tag values.
virtual void	operator() (const void *t0, const void *t1, const void *t2, void *tp)
virtual void	set_tag_manager (RefinerTagManager *tmgr)
Protected Attributes
SimplexTemplateRefiner *	mesh_refiner
RefinerTagManager *	tag_manager

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Detailed Description

This is an class that embodies the process of assigning tag values to new vertices based on some pre-existing neighbors in a simplicial mesh.

Author:

David Thompson

Philippe Pebay

Date:

28 December 2007

Definition at line 38 of file SimplexTemplateTagAssigner.hpp.

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Constructor & Destructor Documentation

moab::SimplexTemplateTagAssigner::SimplexTemplateTagAssigner

(

SimplexTemplateRefiner *

r

)

Construct a template tag assigner.

Definition at line 17 of file SimplexTemplateTagAssigner.cpp.

{
  this->mesh_refiner = r;
  this->tag_manager = 0;
}

moab::SimplexTemplateTagAssigner::~SimplexTemplateTagAssigner

(

)

[virtual]

Empty destructor for good form.

Definition at line 24 of file SimplexTemplateTagAssigner.cpp.

{
}

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Member Function Documentation

void moab::SimplexTemplateTagAssigner::operator()	(	const double *	c0,
		const void *	t0,
		EntityHandle	h0,
		const double *	cm,
		void *	tm,
		const double *	c1,
		const void *	t1,
		EntityHandle	h1
	)		[virtual]

Given endpoint coordinates and tag values plus midpoint coordinates, compute midpoint tag values.

Normally, this function will be invoked by the EntityRefiner before evaluate_edge is called. However, if evaluate_edge() changes the parametric coordinates of the midpoint, it should call evaluate_tags_at_midpoint() again to update any tag values; that is why this function is a member of EdgeSizeEvaluator and not EntityRefiner.

Parameters:

[in]	c0	Pointer to endpoint 0 coordinates. The parametric coordinates (3) are followed by world coordinates (3).
[in]	t0	Pointer to endpoint 0 tag values.
[in]	cm	Pointer to midpoint coordinates. The parametric coordinates (3) are followed by world coordinates (3).
[out]	tm	Pointer to midpoint tag values.
[in]	c1	Pointer to endpoint 1 coordinates. The parametric coordinates (3) are followed by world coordinates (3).
[in]	t1	Pointer to endpoint 1 tag values.

Definition at line 42 of file SimplexTemplateTagAssigner.cpp.

{
  double c0m_squared = 0.;
  double c01_squared = 0.;
  for ( int i = 0; i < 3; ++i )
    {
    double tmp = cm[i] - c0[i];
    c0m_squared += tmp * tmp;
    tmp = c1[i] - c0[i];
    c01_squared += tmp * tmp;
    }
  double lambda = sqrt( c0m_squared / c01_squared );
  double one_minus_lambda = 1. - lambda;

  DataType data_type;
  int tag_size;
  int num_components;
  int num_tags = this->tag_manager->get_number_of_vertex_tags();
  Tag tag_handle;
  int tag_offset;
  for ( int i = 0; i < num_tags; ++i )
    {
    this->tag_manager->get_input_vertex_tag( i, tag_handle, tag_offset );
    this->tag_manager->get_input_mesh()->tag_get_data_type( tag_handle, data_type );
    this->tag_manager->get_input_mesh()->tag_get_bytes( tag_handle, tag_size );
    
    switch ( data_type )
      {
      case MB_TYPE_DOUBLE:
        {
        num_components = tag_size / sizeof( double );
        double* t0i = (double*) ( (char*)t0 + tag_offset );
        double* tmi = (double*) ( (char*)tm + tag_offset );
        double* t1i = (double*) ( (char*)t1 + tag_offset );
        for ( int j = 0; j < num_components; ++ j )
          tmi[j] = one_minus_lambda * t0i[j] + lambda * t1i[j];
        }
        break;
      default:
        memcpy( (char*)tm + tag_offset, (char*)( h0 < h1 ? t0 : t1 ) + tag_offset, tag_size );
        break;
      }
    }
}

void moab::SimplexTemplateTagAssigner::operator()	(	const void *	t0,
		const void *	t1,
		const void *	t2,
		void *	tp
	)		[virtual]

Definition at line 90 of file SimplexTemplateTagAssigner.cpp.

{
  (void)t0;
  (void)t1;
  (void)t2;
  (void)tp;
}

void moab::SimplexTemplateTagAssigner::set_tag_manager

(

RefinerTagManager *

tmgr

)

[virtual]

Definition at line 101 of file SimplexTemplateTagAssigner.cpp.

{
  this->tag_manager = tmgr;
}

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Member Data Documentation

SimplexTemplateRefiner* moab::SimplexTemplateTagAssigner::mesh_refiner [protected]

Definition at line 54 of file SimplexTemplateTagAssigner.hpp.

RefinerTagManager* moab::SimplexTemplateTagAssigner::tag_manager [protected]

Definition at line 55 of file SimplexTemplateTagAssigner.hpp.

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

• SimplexTemplateTagAssigner.hpp
• SimplexTemplateTagAssigner.cpp