IsBoundaryNode

Inheritence

This method is inherited from the AbstractMesh class.

IsBoundaryNode

The IsBoundaryNode method checks if a specific node is a boundary node in the mesh.

Interface

INTERFACE
  MODULE FUNCTION isBoundaryNode(obj, globalNode, islocal) RESULT(ans)
    CLASS(AbstractMesh_), INTENT(IN) :: obj
    INTEGER(I4B), INTENT(IN) :: globalNode
    LOGICAL(LGT), OPTIONAL, INTENT(IN) :: islocal
    LOGICAL(LGT) :: ans
  END FUNCTION isBoundaryNode
END INTERFACE

Syntax

RESULT = mesh%IsBoundaryNode(globalNode, [islocal])

Parameters

Parameter	Type	Intent	Description
obj	CLASS(AbstractMesh_)	IN	The mesh object
globalNode	INTEGER(I4B)	IN	Global or local node number to check
islocal	LOGICAL(LGT)	IN (optional)	If true, globalNode is treated as a local node number

Return Value

Type	Description
LOGICAL(LGT)	True if the node is a boundary node

Description

IsBoundaryNode determines whether a specified node is a boundary node in the mesh. Boundary nodes are nodes that lie on the boundary of the domain.

Implementation Details

The method:

1. Converts the global node number to a local node number if necessary
2. Gets the node type from the node data
3. Returns true if the node type is not an internal node

Example Usage

TYPE(Mesh_) :: mesh
INTEGER(I4B) :: nodeNum
LOGICAL(LGT) :: isBoundary

! Initialize mesh, nodeNum...

! Check if a node is on the boundary
isBoundary = mesh%IsBoundaryNode(nodeNum)

IF (isBoundary) THEN
  PRINT *, "Node", nodeNum, "is on the boundary"
ELSE
  PRINT *, "Node", nodeNum, "is an internal node"
END IF