VISCOUS._Simplex Struct Reference

Simplex (triangle or tetrahedron) based on 1 (tria) or 2 (tet) nodes of _LayerEdge and 2 nodes of the mesh surface beening smoothed. More...

Public Member Functions
	_Simplex (const SMDS_MeshNode *nPrev=0, const SMDS_MeshNode *nNext=0)
bool	IsForward (const SMDS_MeshNode *nSrc, const gp_XYZ *pntTgt) const
bool	IsForward (const gp_XY &tgtUV, const TopoDS_Face &face, SMESH_MesherHelper &helper, const double refSign) const
Data Fields
const SMDS_MeshNode *	_nPrev
const SMDS_MeshNode *	_nNext

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Detailed Description

Simplex (triangle or tetrahedron) based on 1 (tria) or 2 (tet) nodes of _LayerEdge and 2 nodes of the mesh surface beening smoothed.

The class is used to check validity of face or volumes around a smoothed node; it stores only 2 nodes as the other nodes are stored by _LayerEdge.

Definition at line 208 of file StdMeshers_ViscousLayers.cxx.

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Constructor & Destructor Documentation

VISCOUS._Simplex._Simplex	(	const SMDS_MeshNode *	nPrev = 0,
		const SMDS_MeshNode *	nNext = 0
	)

Definition at line 211 of file StdMeshers_ViscousLayers.cxx.

      : _nPrev(nPrev), _nNext(nNext) {}

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Member Function Documentation

bool VISCOUS._Simplex.IsForward	(	const SMDS_MeshNode *	nSrc,
		const gp_XYZ *	pntTgt
	)		const

Definition at line 213 of file StdMeshers_ViscousLayers.cxx.

References SMDS_MeshNode.X(), SMDS_MeshNode.Y(), and SMDS_MeshNode.Z().

    {
      const double M[3][3] =
        {{ _nNext->X() - nSrc->X(), _nNext->Y() - nSrc->Y(), _nNext->Z() - nSrc->Z() },
         { pntTgt->X() - nSrc->X(), pntTgt->Y() - nSrc->Y(), pntTgt->Z() - nSrc->Z() },
         { _nPrev->X() - nSrc->X(), _nPrev->Y() - nSrc->Y(), _nPrev->Z() - nSrc->Z() }};
      double determinant = ( + M[0][0]*M[1][1]*M[2][2]
                             + M[0][1]*M[1][2]*M[2][0]
                             + M[0][2]*M[1][0]*M[2][1]
                             - M[0][0]*M[1][2]*M[2][1]
                             - M[0][1]*M[1][0]*M[2][2]
                             - M[0][2]*M[1][1]*M[2][0]);
      return determinant > 1e-100;
    }

bool VISCOUS._Simplex.IsForward	(	const gp_XY &	tgtUV,
		const TopoDS_Face &	face,
		SMESH_MesherHelper &	helper,
		const double	refSign
	)		const

Definition at line 227 of file StdMeshers_ViscousLayers.cxx.

References ex13_hole1partial.d, and SMESH_MesherHelper.GetNodeUV().

    {
      gp_XY prevUV = helper.GetNodeUV( face, _nPrev );
      gp_XY nextUV = helper.GetNodeUV( face, _nNext );
      gp_Vec2d v1( tgtUV, prevUV ), v2( tgtUV, nextUV );
      double d = v1 ^ v2;
      return d*refSign > 1e-100;
    }

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Field Documentation

const SMDS_MeshNode * VISCOUS._Simplex._nNext

Definition at line 210 of file StdMeshers_ViscousLayers.cxx.

Referenced by VISCOUS._ViscousBuilder.makeLayer().

const SMDS_MeshNode* VISCOUS._Simplex._nPrev

Definition at line 210 of file StdMeshers_ViscousLayers.cxx.

Referenced by VISCOUS._ViscousBuilder.makeLayer().