Foam::vector Foam::featurePointConformer::sharedFaceNormal
(
const extendedFeatureEdgeMesh& feMesh,
const label edgeI,
const label nextEdgeI
) const
{
const labelList& edgeInormals = feMesh.edgeNormals()[edgeI];
const labelList& nextEdgeInormals = feMesh.edgeNormals()[nextEdgeI];
const vector& A1 = feMesh.normals()[edgeInormals[0]];
const vector& A2 = feMesh.normals()[edgeInormals[1]];
const vector& B1 = feMesh.normals()[nextEdgeInormals[0]];
const vector& B2 = feMesh.normals()[nextEdgeInormals[1]];
// Info<< " A1 = " << A1 << endl;
// Info<< " A2 = " << A2 << endl;
// Info<< " B1 = " << B1 << endl;
// Info<< " B2 = " << B2 << endl;
const scalar A1B1 = mag((A1 & B1) - 1.0);
const scalar A1B2 = mag((A1 & B2) - 1.0);
const scalar A2B1 = mag((A2 & B1) - 1.0);
const scalar A2B2 = mag((A2 & B2) - 1.0);
// Info<< " A1B1 = " << A1B1 << endl;
// Info<< " A1B2 = " << A1B2 << endl;
// Info<< " A2B1 = " << A2B1 << endl;
// Info<< " A2B2 = " << A2B2 << endl;
if (A1B1 < A1B2 && A1B1 < A2B1 && A1B1 < A2B2)
{
return 0.5*(A1 + B1);
}
else if (A1B2 < A1B1 && A1B2 < A2B1 && A1B2 < A2B2)
{
return 0.5*(A1 + B2);
}
else if (A2B1 < A1B1 && A2B1 < A1B2 && A2B1 < A2B2)
{
return 0.5*(A2 + B1);
}
else
{
return 0.5*(A2 + B2);
}
}
bool Foam::featurePointConformer::createSpecialisedFeaturePoint
(
const extendedFeatureEdgeMesh& feMesh,
const labelList& pEds,
const pointFeatureEdgesTypes& pFEdgesTypes,
const List<extendedFeatureEdgeMesh::edgeStatus>& allEdStat,
const label ptI,
DynamicList<Vb>& pts
) const
{
if
(
!pFEdgesTypes.found(extendedFeatureEdgeMesh::EXTERNAL)
|| !pFEdgesTypes.found(extendedFeatureEdgeMesh::INTERNAL)
)
{
return false;
}
if
(
pFEdgesTypes[extendedFeatureEdgeMesh::EXTERNAL] == 2
&& pFEdgesTypes[extendedFeatureEdgeMesh::INTERNAL] == 1
&& pEds.size() == 3
)
{
if (debug) Info<< "nExternal == 2 && nInternal == 1" << endl;
const Foam::point& featPt = feMesh.points()[ptI];
if
(
Pstream::parRun()
&& !foamyHexMesh_.decomposition().positionOnThisProcessor(featPt)
)
{
return false;
}
label nVert = foamyHexMesh_.number_of_vertices();
const label initialNumOfPoints = pts.size();
const scalar ppDist = foamyHexMesh_.pointPairDistance(featPt);
const vectorField& normals = feMesh.normals();
const labelListList& edgeNormals = feMesh.edgeNormals();
label concaveEdgeI = -1;
labelList convexEdgesI(2, label(-1));
label nConvex = 0;
forAll(pEds, i)
{
const extendedFeatureEdgeMesh::edgeStatus& eS = allEdStat[i];
if (eS == extendedFeatureEdgeMesh::INTERNAL)
{
concaveEdgeI = pEds[i];
}
else if (eS == extendedFeatureEdgeMesh::EXTERNAL)
{
convexEdgesI[nConvex++] = pEds[i];
}
else if (eS == extendedFeatureEdgeMesh::FLAT)
{
WarningIn("Foam::conformalVoronoiMesh::"
"createSpecialisedFeaturePoint")
<< "Edge " << eS << " is flat"
<< endl;
}
else
{
FatalErrorIn("Foam::conformalVoronoiMesh::"
"createSpecialisedFeaturePoint")
<< "Edge " << eS << " not concave/convex"
<< exit(FatalError);
}
}
const vector& concaveEdgePlaneANormal =
normals[edgeNormals[concaveEdgeI][0]];
const vector& concaveEdgePlaneBNormal =
normals[edgeNormals[concaveEdgeI][1]];
// Intersect planes parallel to the concave edge planes offset
// by ppDist and the plane defined by featPt and the edge vector.
plane planeA
(
featPt + ppDist*concaveEdgePlaneANormal,
concaveEdgePlaneANormal
);
plane planeB
(
featPt + ppDist*concaveEdgePlaneBNormal,
concaveEdgePlaneBNormal
);
const vector& concaveEdgeDir = feMesh.edgeDirection
(
concaveEdgeI,
ptI
);
// Todo,needed later but want to get rid of this.
const Foam::point concaveEdgeLocalFeatPt =
featPt + ppDist*concaveEdgeDir;
// Finding the nearest point on the intersecting line to the edge
// point. Floating point errors often occur using planePlaneIntersect
plane planeF(concaveEdgeLocalFeatPt, concaveEdgeDir);
const Foam::point concaveEdgeExternalPt = planeF.planePlaneIntersect
(
planeA,
planeB
);
// Redefine planes to be on the feature surfaces to project through
planeA = plane(featPt, concaveEdgePlaneANormal);
planeB = plane(featPt, concaveEdgePlaneBNormal);
const Foam::point internalPtA =
concaveEdgeExternalPt
- 2.0*planeA.distance(concaveEdgeExternalPt)
*concaveEdgePlaneANormal;
pts.append
(
Vb
(
internalPtA,
foamyHexMesh_.vertexCount() + pts.size(),
Vb::vtInternalFeaturePoint,
Pstream::myProcNo()
)
);
const label internalPtAIndex(pts.last().index());
const Foam::point internalPtB =
concaveEdgeExternalPt
- 2.0*planeB.distance(concaveEdgeExternalPt)
*concaveEdgePlaneBNormal;
pts.append
(
Vb
(
internalPtB,
foamyHexMesh_.vertexCount() + pts.size(),
Vb::vtInternalFeaturePoint,
Pstream::myProcNo()
)
);
const label internalPtBIndex(pts.last().index());
// Add the external points
Foam::point externalPtD;
Foam::point externalPtE;
vector convexEdgePlaneCNormal(vector::zero);
vector convexEdgePlaneDNormal(vector::zero);
const labelList& concaveEdgeNormals = edgeNormals[concaveEdgeI];
const labelList& convexEdgeANormals = edgeNormals[convexEdgesI[0]];
const labelList& convexEdgeBNormals = edgeNormals[convexEdgesI[1]];
forAll(concaveEdgeNormals, edgeNormalI)
{
bool convexEdgeA = false;
bool convexEdgeB = false;
forAll(convexEdgeANormals, edgeAnormalI)
{
const vector& concaveNormal
= normals[concaveEdgeNormals[edgeNormalI]];
const vector& convexNormal
= normals[convexEdgeANormals[edgeAnormalI]];
if (debug)
{
Info<< "Angle between vectors = "
<< degAngleBetween(concaveNormal, convexNormal) << endl;
}
// Need a looser tolerance, because sometimes adjacent triangles
// on the same surface will be slightly out of alignment.
if (areParallel(concaveNormal, convexNormal, tolParallel))
{
convexEdgeA = true;
}
}
forAll(convexEdgeBNormals, edgeBnormalI)
{
const vector& concaveNormal
= normals[concaveEdgeNormals[edgeNormalI]];
const vector& convexNormal
= normals[convexEdgeBNormals[edgeBnormalI]];
if (debug)
{
Info<< "Angle between vectors = "
<< degAngleBetween(concaveNormal, convexNormal) << endl;
}
// Need a looser tolerance, because sometimes adjacent triangles
// on the same surface will be slightly out of alignment.
if (areParallel(concaveNormal, convexNormal, tolParallel))
{
convexEdgeB = true;
}
}
if ((convexEdgeA && convexEdgeB) || (!convexEdgeA && !convexEdgeB))
{
WarningIn
(
"Foam::conformalVoronoiMesh"
"::createSpecialisedFeaturePoint"
)
<< "Both or neither of the convex edges share the concave "
<< "edge's normal."
<< " convexEdgeA = " << convexEdgeA
<< " convexEdgeB = " << convexEdgeB
<< endl;
// Remove points that have just been added before returning
for (label i = 0; i < 2; ++i)
{
pts.remove();
nVert--;
}
return false;
}
if (convexEdgeA)
{
forAll(convexEdgeANormals, edgeAnormalI)
{
const vector& concaveNormal
= normals[concaveEdgeNormals[edgeNormalI]];
const vector& convexNormal
= normals[convexEdgeANormals[edgeAnormalI]];
if
(
!areParallel(concaveNormal, convexNormal, tolParallel)
)
{
convexEdgePlaneCNormal = convexNormal;
plane planeC(featPt, convexEdgePlaneCNormal);
externalPtD =
internalPtA
+ 2.0*planeC.distance(internalPtA)
*convexEdgePlaneCNormal;
pts.append
(
Vb
(
externalPtD,
foamyHexMesh_.vertexCount() + pts.size(),
Vb::vtExternalFeaturePoint,
Pstream::myProcNo()
)
);
ftPtPairs_.addPointPair
(
internalPtAIndex,
pts.last().index()
);
}
}
}
if (convexEdgeB)
{
forAll(convexEdgeBNormals, edgeBnormalI)
{
const vector& concaveNormal
= normals[concaveEdgeNormals[edgeNormalI]];
const vector& convexNormal
= normals[convexEdgeBNormals[edgeBnormalI]];
if
(
!areParallel(concaveNormal, convexNormal, tolParallel)
)
{
convexEdgePlaneDNormal = convexNormal;
plane planeD(featPt, convexEdgePlaneDNormal);
externalPtE =
internalPtB
+ 2.0*planeD.distance(internalPtB)
*convexEdgePlaneDNormal;
pts.append
(
Vb
(
externalPtE,
foamyHexMesh_.vertexCount() + pts.size(),
Vb::vtExternalFeaturePoint,
Pstream::myProcNo()
)
);
ftPtPairs_.addPointPair
(
internalPtBIndex,
pts.last().index()
);
}
}
}
}
pts.append
(
Vb
(
concaveEdgeExternalPt,
foamyHexMesh_.vertexCount() + pts.size(),
Vb::vtExternalFeaturePoint,
Pstream::myProcNo()
)
);
ftPtPairs_.addPointPair
(
internalPtBIndex,
pts.last().index()
);
ftPtPairs_.addPointPair
(
internalPtAIndex,
pts.last().index()
);
const label concaveEdgeExternalPtIndex(pts.last().index());
const scalar totalAngle = radToDeg
(
constant::mathematical::pi
+ radAngleBetween(concaveEdgePlaneANormal, concaveEdgePlaneBNormal)
);
if (totalAngle > foamyHexMeshControls_.maxQuadAngle())
{
// Add additional mitreing points
//scalar angleSign = 1.0;
vector convexEdgesPlaneNormal =
0.5*(convexEdgePlaneCNormal + convexEdgePlaneDNormal);
plane planeM(featPt, convexEdgesPlaneNormal);
// if
// (
// geometryToConformTo_.outside
// (
// featPt - convexEdgesPlaneNormal*ppDist
// )
// )
// {
// angleSign = -1.0;
// }
// scalar phi =
// angleSign*acos(concaveEdgeDir & -convexEdgesPlaneNormal);
//
// scalar guard =
// (
// 1.0 + sin(phi)*ppDist/mag
// (
// concaveEdgeLocalFeatPt - concaveEdgeExternalPt
// )
// )/cos(phi) - 1.0;
const Foam::point internalPtF =
concaveEdgeExternalPt
//+ (2.0 + guard)*(concaveEdgeLocalFeatPt - concaveEdgeExternalPt);
+ 2.0*(concaveEdgeLocalFeatPt - concaveEdgeExternalPt);
pts.append
(
Vb
(
internalPtF,
foamyHexMesh_.vertexCount() + pts.size(),
Vb::vtInternalFeaturePoint,
Pstream::myProcNo()
)
);
const label internalPtFIndex(pts.last().index());
ftPtPairs_.addPointPair
(
concaveEdgeExternalPtIndex,
pts.last().index()
);
const Foam::point externalPtG =
internalPtF
+ 2.0*planeM.distance(internalPtF)*convexEdgesPlaneNormal;
pts.append
(
Vb
(
externalPtG,
foamyHexMesh_.vertexCount() + pts.size(),
Vb::vtExternalFeaturePoint,
Pstream::myProcNo()
)
);
ftPtPairs_.addPointPair
(
internalPtFIndex,
pts.last().index()
);
}
if (debug)
{
for (label ptI = initialNumOfPoints; ptI < pts.size(); ++ptI)
{
Info<< "Point " << ptI << " : ";
meshTools::writeOBJ(Info, topoint(pts[ptI].point()));
}
}
return true;
}