Hermes2D  2.0
Public Member Functions | Public Attributes | List of all members
Hermes::Hermes2D::Node Struct Reference

Stores one node of a mesh. More...

#include <mesh.h>

Public Member Functions

bool is_constrained_vertex () const
 Returns true if the (vertex) node is constrained.
 
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
 
   } 
 
}; 
 
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. HERMES_TYPE_VERTEX – vertex node. Has physical coordinates x, y.  
  2. HERMES_TYPE_EDGE – edge node. Only stores edge marker and two element pointers.

Definition at line 68 of file mesh.h.

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