Node Struct Reference

Stores one node of a mesh. More...

#include <mesh.h>

List of all members.

Public Member Functions
bool	is_constrained_vertex () const
void	ref_element (Element *e=NULL)
void	unref_element (HashTable *ht, Element *e=NULL)
Public Attributes
int	id
	node id number
unsigned	ref:29
	the number of elements using the node
unsigned	type:1
	0 = vertex node; 1 = edge node
unsigned	bnd:1
	1 = boundary node; 0 = inner node
unsigned	used:1
	array item usage flag
union {
struct {
double   x
double   y
	vertex node coordinates
}
struct {
int   marker
	edge marker
Element *   elem [2]
	elements sharing the edge node
Nurbs *   nurbs
	temporary curved edge ptr (only for loading the mesh)
}
};
int	p1
int	p2
	parent id numbers
Node *	next_hash
	next node in hash synonym list

---

Detailed Description

Stores one node of a mesh.

There are are two variants of this structure, depending on the value of the member 'type':

1. H2D_TYPE_VERTEX -- vertex node. Has physical coordinates x, y.
2. H2D_TYPE_EDGE -- edge node. Only stores edge marker and two element pointers.

---

Member Function Documentation

bool Node::is_constrained_vertex

(

)

const [inline]

void Node::ref_element

(

Element *

e = NULL

)

void Node::unref_element	(	HashTable *	ht,
		Element *	e = NULL
	)

---

Member Data Documentation

union { ... }

unsigned Node::bnd

1 = boundary node; 0 = inner node

Element* Node::elem[2]

elements sharing the edge node

int Node::id

node id number

int Node::marker

edge marker

Node* Node::next_hash

next node in hash synonym list

Nurbs* Node::nurbs

temporary curved edge ptr (only for loading the mesh)

int Node::p1

int Node::p2

parent id numbers

unsigned Node::ref

the number of elements using the node

unsigned Node::type

0 = vertex node; 1 = edge node

unsigned Node::used

array item usage flag

double Node::x

double Node::y

vertex node coordinates

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

• /var/www2/hermes2d/hermes2d/src/mesh.h
• /var/www2/hermes2d/hermes2d/src/mesh.cpp