Nektar::NekMeshUtils::Node Class Reference

Represents a point in the domain. More...

#include <Node.h>

Public Member Functions
NEKMESHUTILS_EXPORT	Node (int pId, NekDouble pX, NekDouble pY, NekDouble pZ)
	Create a new node at a specified coordinate. More...
NEKMESHUTILS_EXPORT	Node ()
	Copy an existing node. More...
NEKMESHUTILS_EXPORT	~Node ()
NEKMESHUTILS_EXPORT void	SetID (int pId)
	Reset the local id;. More...
NEKMESHUTILS_EXPORT int	GetID (void)
	Get the local id;. More...
NEKMESHUTILS_EXPORT bool	operator< (const Node &pSrc)
	Define node ordering based on ID. More...
NEKMESHUTILS_EXPORT bool	operator== (const Node &pSrc)
	Define node equality based on coordinate. More...
NEKMESHUTILS_EXPORT Node	operator+ (const Node &pSrc) const
NEKMESHUTILS_EXPORT Node	operator- (const Node &pSrc) const
NEKMESHUTILS_EXPORT Node	operator* (const Node &pSrc) const
NEKMESHUTILS_EXPORT Node	operator* (const NekDouble &alpha) const
NEKMESHUTILS_EXPORT Node	operator/ (const NekDouble &alpha) const
NEKMESHUTILS_EXPORT void	operator+= (const Node &pSrc)
NEKMESHUTILS_EXPORT void	operator*= (const NekDouble &alpha)
NEKMESHUTILS_EXPORT void	operator/= (const NekDouble &alpha)
NEKMESHUTILS_EXPORT NekDouble	abs2 () const
NEKMESHUTILS_EXPORT NekDouble	dot (const Node &pSrc) const
NEKMESHUTILS_EXPORT Node	curl (const Node &pSrc) const
NEKMESHUTILS_EXPORT Array < OneD, NekDouble >	GetLoc ()
NEKMESHUTILS_EXPORT SpatialDomains::PointGeomSharedPtr	GetGeom (int coordDim)
	Generate a SpatialDomains::PointGeom for this node. More...
NEKMESHUTILS_EXPORT NekDouble	Distance (NodeSharedPtr &p)
NEKMESHUTILS_EXPORT NekDouble	Angle (NodeSharedPtr &a, NodeSharedPtr &b)

Public Attributes
int	m_id
	ID of node. More...
NekDouble	m_x
	X-coordinate. More...
NekDouble	m_y
	Y-coordinate. More...
NekDouble	m_z
	Z-coordinate. More...

Private Attributes
SpatialDomains::PointGeomSharedPtr	m_geom

Detailed Description

Represents a point in the domain.

Such points may either be element vertices, or simply control points on high-order edges/faces, although this information is not contained within this class.

Definition at line 60 of file Node.h.

Constructor & Destructor Documentation

NEKMESHUTILS_EXPORT Nektar::NekMeshUtils::Node::Node ( int  pId, NekDouble  pX, NekDouble  pY, NekDouble  pZ  )

inline

Create a new node at a specified coordinate.

Definition at line 64 of file Node.h.

        : m_id(pId), m_x(pX), m_y(pY), m_z(pZ), m_geom()
    {
    }

NEKMESHUTILS_EXPORT Nektar::NekMeshUtils::Node::Node ( )

inline

Copy an existing node.

Definition at line 72 of file Node.h.

Referenced by curl(), operator*(), operator+(), operator-(), and operator/().

                               : m_id(0), m_x(0.0), m_y(0.0), m_z(0.0), m_geom()
    {
    }

NEKMESHUTILS_EXPORT Nektar::NekMeshUtils::Node::~Node ( )

inline

Definition at line 75 of file Node.h.

    {
    }

Member Function Documentation

NEKMESHUTILS_EXPORT NekDouble Nektar::NekMeshUtils::Node::abs2 ( ) const

inline

Definition at line 148 of file Node.h.

References m_x, m_y, and m_z.

Referenced by Nektar::Utilities::ProcessSpherigon::GenerateNormals(), Nektar::Utilities::ProcessPerAlign::Process(), and Nektar::Utilities::ProcessSpherigon::Process().

    {
        return m_x * m_x + m_y * m_y + m_z * m_z;
    }

NEKMESHUTILS_EXPORT NekDouble Nektar::NekMeshUtils::Node::Angle ( NodeSharedPtr &  a, NodeSharedPtr &  b  )

inline

Definition at line 192 of file Node.h.

References m_x, m_y, and m_z.

    {
        Array<OneD, NekDouble> va(3), vb(3), cn(3);
        va[0] = a->m_x - m_x;
        va[1] = a->m_y - m_y;
        va[2] = a->m_z - m_z;
        vb[0] = b->m_x - m_x;
        vb[1] = b->m_y - m_y;
        vb[2] = b->m_z - m_z;

        NekDouble lva = sqrt(va[0] * va[0] + va[1] * va[1] + va[2] * va[2]);
        NekDouble lvb = sqrt(vb[0] * vb[0] + vb[1] * vb[1] + vb[2] * vb[2]);

        NekDouble aw = 1.0 / (lva * lvb);

        NekDouble cosw = (va[0] * vb[0] + va[1] * vb[1] + va[2] * vb[2]) * aw;

        cn[0] = vb[1] * va[2] - vb[2] * va[1];
        cn[1] = vb[2] * va[0] - vb[0] * va[2];
        cn[2] = vb[0] * va[1] - vb[1] * va[0];

        NekDouble lcn = sqrt(cn[0] * cn[0] + cn[1] * cn[1] + cn[2] * cn[2]);

        NekDouble sinw = aw * lcn;

        NekDouble an = atan2(sinw, cosw);

        if (an < 0)
            an += 6.2831853071796;

        return an;
    }

NEKMESHUTILS_EXPORT Node Nektar::NekMeshUtils::Node::curl ( const Node &  pSrc ) const

inline

Definition at line 158 of file Node.h.

References m_id, m_x, m_y, m_z, and Node().

Referenced by Nektar::Utilities::InputTec::SortEdgeNodes(), Nektar::Utilities::InputStar::SortEdgeNodes(), Nektar::Utilities::InputTec::SortFaceNodes(), and Nektar::Utilities::InputStar::SortFaceNodes().

    {
        return Node(m_id,
                    m_y * pSrc.m_z - m_z * pSrc.m_y,
                    m_z * pSrc.m_x - m_x * pSrc.m_z,
                    m_x * pSrc.m_y - m_y * pSrc.m_x);
    }

NEKMESHUTILS_EXPORT NekDouble Nektar::NekMeshUtils::Node::Distance ( NodeSharedPtr &  p )

inline

Definition at line 185 of file Node.h.

References m_x, m_y, and m_z.

    {
        return sqrt((m_x - p->m_x) * (m_x - p->m_x) +
                    (m_y - p->m_y) * (m_y - p->m_y) +
                    (m_z - p->m_z) * (m_z - p->m_z));
    }

NEKMESHUTILS_EXPORT NekDouble Nektar::NekMeshUtils::Node::dot ( const Node &  pSrc ) const

inline

Definition at line 153 of file Node.h.

References m_x, m_y, and m_z.

Referenced by Nektar::Utilities::ProcessSpherigon::Process(), Nektar::Utilities::InputTec::SortEdgeNodes(), Nektar::Utilities::InputStar::SortEdgeNodes(), Nektar::Utilities::InputTec::SortFaceNodes(), and Nektar::Utilities::InputStar::SortFaceNodes().

    {
        return m_x * pSrc.m_x + m_y * pSrc.m_y + m_z * pSrc.m_z;
    }

NEKMESHUTILS_EXPORT SpatialDomains::PointGeomSharedPtr Nektar::NekMeshUtils::Node::GetGeom ( int  coordDim )

inline

Generate a SpatialDomains::PointGeom for this node.

Definition at line 176 of file Node.h.

References Nektar::MemoryManager< DataType >::AllocateSharedPtr(), m_id, m_x, m_y, and m_z.

    {
        SpatialDomains::PointGeomSharedPtr ret =
            MemoryManager<SpatialDomains::PointGeom>::AllocateSharedPtr(
                coordDim, m_id, m_x, m_y, m_z);

        return ret;
    }

NEKMESHUTILS_EXPORT int Nektar::NekMeshUtils::Node::GetID ( void  )

inline

Get the local id;.

Definition at line 86 of file Node.h.

References m_id.

    {
        return m_id;
    }

NEKMESHUTILS_EXPORT Array<OneD, NekDouble> Nektar::NekMeshUtils::Node::GetLoc ( )

inline

Definition at line 166 of file Node.h.

References m_x, m_y, and m_z.

    {
        Array<OneD, NekDouble> out(3);
        out[0] = m_x;
        out[1] = m_y;
        out[2] = m_z;
        return out;
    }

NEKMESHUTILS_EXPORT Node Nektar::NekMeshUtils::Node::operator* ( const Node &  pSrc ) const

inline

Definition at line 112 of file Node.h.

References m_id, m_x, m_y, m_z, and Node().

    {
        return Node(m_id, m_x * pSrc.m_x, m_y * pSrc.m_y, m_z * pSrc.m_z);
    }

NEKMESHUTILS_EXPORT Node Nektar::NekMeshUtils::Node::operator* ( const NekDouble &  alpha ) const

inline

Definition at line 117 of file Node.h.

References m_id, m_x, m_y, m_z, and Node().

    {
        return Node(m_id, alpha * m_x, alpha * m_y, alpha * m_z);
    }

NEKMESHUTILS_EXPORT void Nektar::NekMeshUtils::Node::operator*= ( const NekDouble &  alpha )

inline

Definition at line 134 of file Node.h.

References m_x, m_y, and m_z.

    {
        m_x *= alpha;
        m_y *= alpha;
        m_z *= alpha;
    }

NEKMESHUTILS_EXPORT Node Nektar::NekMeshUtils::Node::operator+ ( const Node &  pSrc ) const

inline

Definition at line 102 of file Node.h.

References m_id, m_x, m_y, m_z, and Node().

    {
        return Node(m_id, m_x + pSrc.m_x, m_y + pSrc.m_y, m_z + pSrc.m_z);
    }

NEKMESHUTILS_EXPORT void Nektar::NekMeshUtils::Node::operator+= ( const Node &  pSrc )

inline

Definition at line 127 of file Node.h.

References m_x, m_y, and m_z.

    {
        m_x += pSrc.m_x;
        m_y += pSrc.m_y;
        m_z += pSrc.m_z;
    }

NEKMESHUTILS_EXPORT Node Nektar::NekMeshUtils::Node::operator- ( const Node &  pSrc ) const

inline

Definition at line 107 of file Node.h.

References m_id, m_x, m_y, m_z, and Node().

    {
        return Node(m_id, m_x - pSrc.m_x, m_y - pSrc.m_y, m_z - pSrc.m_z);
    }

NEKMESHUTILS_EXPORT Node Nektar::NekMeshUtils::Node::operator/ ( const NekDouble &  alpha ) const

inline

Definition at line 122 of file Node.h.

References m_id, m_x, m_y, m_z, and Node().

    {
        return Node(m_id, m_x / alpha, m_y / alpha, m_z / alpha);
    }

NEKMESHUTILS_EXPORT void Nektar::NekMeshUtils::Node::operator/= ( const NekDouble &  alpha )

inline

Definition at line 141 of file Node.h.

References m_x, m_y, and m_z.

    {
        m_x /= alpha;
        m_y /= alpha;
        m_z /= alpha;
    }

NEKMESHUTILS_EXPORT bool Nektar::NekMeshUtils::Node::operator< ( const Node &  pSrc )

inline

Define node ordering based on ID.

Definition at line 92 of file Node.h.

References m_id.

    {
        return (m_id < pSrc.m_id);
    }

NEKMESHUTILS_EXPORT bool Nektar::NekMeshUtils::Node::operator== ( const Node &  pSrc )

inline

Define node equality based on coordinate.

Definition at line 97 of file Node.h.

References m_x, m_y, and m_z.

    {
        return m_x == pSrc.m_x && m_y == pSrc.m_y && m_z == pSrc.m_z;
    }

NEKMESHUTILS_EXPORT void Nektar::NekMeshUtils::Node::SetID ( int  pId )

inline

Reset the local id;.

Definition at line 80 of file Node.h.

References m_id.

    {
        m_id = pId;
    }

Member Data Documentation

SpatialDomains::PointGeomSharedPtr Nektar::NekMeshUtils::Node::m_geom

private

Definition at line 328 of file Node.h.

int Nektar::NekMeshUtils::Node::m_id

ID of node.

Definition at line 310 of file Node.h.

Referenced by curl(), GetGeom(), GetID(), operator*(), operator+(), operator-(), operator/(), operator<(), Nektar::Utilities::ProcessPerAlign::Process(), and SetID().

NekDouble Nektar::NekMeshUtils::Node::m_x

X-coordinate.

Definition at line 312 of file Node.h.

Referenced by abs2(), Angle(), Nektar::Utilities::ProcessSpherigon::CrossProdMag(), curl(), Distance(), dot(), Nektar::Utilities::ProcessSpherigon::GenerateNormals(), GetGeom(), GetLoc(), operator*(), operator*=(), operator+(), operator+=(), operator-(), operator/(), operator/=(), operator==(), Nektar::Utilities::ProcessPerAlign::Process(), Nektar::Utilities::ProcessSpherigon::Process(), Nektar::Utilities::ProcessScalar::Process(), and Nektar::Utilities::ProcessSpherigon::UnitCrossProd().

NekDouble Nektar::NekMeshUtils::Node::m_y

Y-coordinate.

Definition at line 314 of file Node.h.

Referenced by abs2(), Angle(), Nektar::Utilities::ProcessSpherigon::CrossProdMag(), curl(), Distance(), dot(), Nektar::Utilities::ProcessSpherigon::GenerateNormals(), GetGeom(), GetLoc(), operator*(), operator*=(), operator+(), operator+=(), operator-(), operator/(), operator/=(), operator==(), Nektar::Utilities::ProcessPerAlign::Process(), Nektar::Utilities::ProcessSpherigon::Process(), Nektar::Utilities::ProcessScalar::Process(), and Nektar::Utilities::ProcessSpherigon::UnitCrossProd().

NekDouble Nektar::NekMeshUtils::Node::m_z

Z-coordinate.

Definition at line 316 of file Node.h.

Referenced by abs2(), Angle(), Nektar::Utilities::ProcessSpherigon::CrossProdMag(), curl(), Distance(), dot(), Nektar::Utilities::ProcessSpherigon::GenerateNormals(), GetGeom(), GetLoc(), operator*(), operator*=(), operator+(), operator+=(), operator-(), operator/(), operator/=(), operator==(), Nektar::Utilities::ProcessPerAlign::Process(), Nektar::Utilities::ProcessSpherigon::Process(), Nektar::Utilities::ProcessScalar::Process(), and Nektar::Utilities::ProcessSpherigon::UnitCrossProd().