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ENH: autoLayerDriver: optional limit; renamed parameter

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This commit is contained in:
mattijs
2013-12-04 15:57:48 +00:00
parent bab168b5af
commit 8f163184be
5 changed files with 124 additions and 41 deletions
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2
src/mesh/autoMesh/autoHexMesh/autoHexMeshDriver/autoLayerDriver.H
View File

@ -510,7 +510,7 @@ private:
const motionSmoother& meshMover,
const label nSmoothNormals,
const label nSmoothSurfaceNormals,
const scalar minMedianAxisAngleCos,
const scalar minMedialAxisAngleCos,
const scalar featureAngle,
pointVectorField& dispVec,

4
src/mesh/autoMesh/autoHexMesh/autoHexMeshDriver/autoLayerDriverShrink.C
View File

@ -864,7 +864,7 @@ void Foam::autoLayerDriver::medialAxisSmoothingInfo
const motionSmoother& meshMover,
const label nSmoothNormals,
const label nSmoothSurfaceNormals,
const scalar minMedianAxisAngleCos,
const scalar minMedialAxisAngleCos,
const scalar featureAngle,
pointVectorField& dispVec,
@ -1049,7 +1049,7 @@ void Foam::autoLayerDriver::medialAxisSmoothingInfo
{
// Unvisited point. See above about nUnvisit warning
}
else if (isMaxEdge(pointWallDist, edgeI, minMedianAxisAngleCos))
else if (isMaxEdge(pointWallDist, edgeI, minMedialAxisAngleCos))
{
// Both end points of edge have very different nearest wall
// point. Mark both points as medial axis points.

16
src/mesh/autoMesh/autoHexMesh/autoHexMeshDriver/layerParameters/layerParameters.C
View File

@ -154,10 +154,6 @@ Foam::layerParameters::layerParameters
(
readScalar(dict.lookup("maxThicknessToMedialRatio"))
),
minMedianAxisAngleCos_
(
Foam::cos(degToRad(readScalar(dict.lookup("minMedianAxisAngle"))))
),
nBufferCellsNoExtrude_
(
readLabel(dict.lookup("nBufferCellsNoExtrude"))
@ -175,6 +171,18 @@ Foam::layerParameters::layerParameters
)
)
{
word angleKey = "minMedialAxisAngle";
if (!dict.found(angleKey))
{
// Backwards compatibility
angleKey = "minMedianAxisAngle";
}
minMedialAxisAngleCos_ = Foam::cos
(
degToRad(readScalar(dict.lookup(angleKey)))
);
// Detect layer specification mode
label nSpec = 0;

6
src/mesh/autoMesh/autoHexMesh/autoHexMeshDriver/layerParameters/layerParameters.H
View File

@ -134,7 +134,7 @@ private:
scalar maxThicknessToMedialRatio_;
scalar minMedianAxisAngleCos_;
scalar minMedialAxisAngleCos_;
label nBufferCellsNoExtrude_;
@ -348,9 +348,9 @@ public:
}
//- Angle used to pick up medial axis points
scalar minMedianAxisAngleCos() const
scalar minMedialAxisAngleCos() const
{
return minMedianAxisAngleCos_;
return minMedialAxisAngleCos_;
}
label nSnap() const

137
src/mesh/autoMesh/autoHexMesh/externalDisplacementMeshMover/medialAxisMeshMover.C
View File

@ -402,7 +402,7 @@ bool Foam::medialAxisMeshMover::isMaxEdge
void Foam::medialAxisMeshMover::update(const dictionary& coeffDict)
{
Info<< typeName
<< " : Calculate distance to Medial Axis ..." << endl;
<< " : Calculating distance to Medial Axis ..." << endl;
const pointField& points = mesh().points();
@ -420,9 +420,15 @@ void Foam::medialAxisMeshMover::update(const dictionary& coeffDict)
);
//- When is medial axis
const scalar minMedianAxisAngleCos = Foam::cos
word angleKey = "minMedialAxisAngle";
if (!coeffDict.found(angleKey))
{
// Backwards compatibility
angleKey = "minMedianAxisAngle";
}
scalar minMedialAxisAngleCos = Foam::cos
(
degToRad(readScalar(coeffDict.lookup("minMedianAxisAngle")))
degToRad(readScalar(coeffDict.lookup(angleKey)))
);
//- Feature angle when to stop adding layers
@ -442,6 +448,13 @@ void Foam::medialAxisMeshMover::update(const dictionary& coeffDict)
coeffDict.lookup("nSmoothNormals")
);
//- Number of edges walking out
const label nMedialAxisIter = coeffDict.lookupOrDefault<label>
(
"nMedialAxisIter",
mesh().globalData().nTotalPoints()
);
// Predetermine mesh edges
// ~~~~~~~~~~~~~~~~~~~~~~~
@ -512,10 +525,10 @@ void Foam::medialAxisMeshMover::update(const dictionary& coeffDict)
wallInfo,
pointWallDist,
edgeWallDist,
mesh().globalData().nTotalPoints(), // max iterations
0, // max iterations
dummyTrackData
);
wallDistCalc.iterate(nMedialAxisIter);
label nUnvisit = returnReduce
(
@ -525,16 +538,27 @@ void Foam::medialAxisMeshMover::update(const dictionary& coeffDict)
if (nUnvisit > 0)
{
WarningIn
(
"medialAxisMeshMover::"
"medialAxisSmoothingInfo(..)"
) << "Walking did not visit all points." << nl
<< " Did not visit " << nUnvisit
<< " out of " << mesh().globalData().nTotalPoints()
<< " points. This is not necessarily a problem" << nl
<< " and might be due to faceZones splitting of part"
<< " of the domain." << nl << endl;
if (nMedialAxisIter > 0)
{
Info<< typeName
<< " : Limited walk to " << nMedialAxisIter
<< " steps. Not visited " << nUnvisit
<< " out of " << mesh().globalData().nTotalPoints()
<< " points" << endl;
}
else
{
WarningIn
(
"medialAxisMeshMover::"
"medialAxisSmoothingInfo(..)"
) << "Walking did not visit all points." << nl
<< " Did not visit " << nUnvisit
<< " out of " << mesh().globalData().nTotalPoints()
<< " points. This is not necessarily a problem" << nl
<< " and might be due to faceZones splitting of part"
<< " of the domain." << nl << endl;
}
}
}
@ -564,8 +588,29 @@ void Foam::medialAxisMeshMover::update(const dictionary& coeffDict)
)
{
// Unvisited point. See above about nUnvisit warning
forAll(e, ep)
{
label pointI = e[ep];
if (!pointMedialDist[pointI].valid(dummyTrackData))
{
maxPoints.append(pointI);
maxInfo.append
(
pointData
(
points[pointI],
0.0,
pointI, // passive data
vector::zero // passive data
)
);
pointMedialDist[pointI] = maxInfo.last();
}
}
}
else if (isMaxEdge(pointWallDist, edgeI, minMedianAxisAngleCos))
else if (isMaxEdge(pointWallDist, edgeI, minMedialAxisAngleCos))
{
// Both end points of edge have very different nearest wall
// point. Mark both points as medial axis points.
@ -653,7 +698,8 @@ void Foam::medialAxisMeshMover::update(const dictionary& coeffDict)
if (pvf.fixesValue())
{
// Disable all movement on fixedValue patchFields
Info<< "Inserting all points on patch " << pp.name()
Info<< typeName
<< " : Inserting all points on patch " << pp.name()
<< endl;
forAll(meshPoints, i)
@ -683,7 +729,8 @@ void Foam::medialAxisMeshMover::update(const dictionary& coeffDict)
// normal as the passive vector. Note that this points
// out of the originating wall so inside of the domain
// on this patch.
Info<< "Inserting points on patch " << pp.name()
Info<< typeName
<< " : Inserting points on patch " << pp.name()
<< " if angle to nearest layer patch > "
<< slipFeatureAngle << " degrees." << endl;
@ -753,15 +800,29 @@ void Foam::medialAxisMeshMover::update(const dictionary& coeffDict)
pointMedialDist,
edgeMedialDist,
mesh().globalData().nTotalPoints(), // max iterations
0, // max iterations
dummyTrackData
);
medialDistCalc.iterate(2*nMedialAxisIter);
// Extract medial axis distance as pointScalarField
forAll(pointMedialDist, pointI)
{
medialDist_[pointI] = Foam::sqrt(pointMedialDist[pointI].distSqr());
medialVec_[pointI] = pointMedialDist[pointI].origin();
if (pointMedialDist[pointI].valid(dummyTrackData))
{
medialDist_[pointI] = Foam::sqrt
(
pointMedialDist[pointI].distSqr()
);
medialVec_[pointI] = pointMedialDist[pointI].origin();
}
else
{
// Unvisited. Do as if on medial axis so unmoving
medialDist_[pointI] = 0.0;
medialVec_[pointI] = point(1, 0, 0);
}
}
}
@ -1380,7 +1441,8 @@ void Foam::medialAxisMeshMover::findIsolatedRegions
}
reduce(nPointCounter, sumOp<label>());
Info<< "Number isolated points extrusion stopped : "<< nPointCounter
Info<< typeName
<< " : Number of isolated points extrusion stopped : "<< nPointCounter
<< endl;
}
@ -1632,6 +1694,13 @@ void Foam::medialAxisMeshMover::calculateDisplacement
coeffDict.lookup("nSmoothThickness")
);
//- Number of edges walking out
const label nMedialAxisIter = coeffDict.lookupOrDefault<label>
(
"nMedialAxisIter",
mesh().globalData().nTotalPoints()
);
// Precalulate master points/edge (only relevant for shared points/edges)
const PackedBoolList isMasterPoint(syncTools::getMasterPoints(mesh()));
@ -1677,7 +1746,8 @@ void Foam::medialAxisMeshMover::calculateDisplacement
+ ".obj"
)
);
Info<< "Writing points with too large an extrusion distance to "
Info<< typeName
<< " : Writing points with too large an extrusion distance to "
<< str().name() << endl;
}
@ -1694,8 +1764,9 @@ void Foam::medialAxisMeshMover::calculateDisplacement
+ ".obj"
)
);
Info<< "Writing points with too large an extrusion distance to "
<< medialVecStr().name() << endl;
Info<< typeName
<< " : Writing medial axis vectors on points with too large"
<< " an extrusion distance to " << medialVecStr().name() << endl;
}
forAll(meshPoints, patchPointI)
@ -1721,7 +1792,7 @@ void Foam::medialAxisMeshMover::calculateDisplacement
if (thicknessRatio > maxThicknessToMedialRatio)
{
// Truncate thickness.
if (debug)
if (debug&2)
{
Pout<< "truncating displacement at "
<< mesh().points()[pointI]
@ -1770,7 +1841,7 @@ void Foam::medialAxisMeshMover::calculateDisplacement
}
reduce(numThicknessRatioExclude, sumOp<label>());
Info<< typeName << " : Reduce layer thickness at "
Info<< typeName << " : Reducing layer thickness at "
<< numThicknessRatioExclude
<< " nodes where thickness to medial axis distance is large " << endl;
@ -1849,9 +1920,10 @@ void Foam::medialAxisMeshMover::calculateDisplacement
wallInfo,
pointWallDist,
edgeWallDist,
mesh().globalData().nTotalPoints(), // max iterations
0, // max iterations
dummyTrackData
);
wallDistCalc.iterate(nMedialAxisIter);
}
@ -1917,10 +1989,13 @@ bool Foam::medialAxisMeshMover::shrinkMesh
for (label iter = 0; iter < 2*nSnap ; iter++)
{
Info<< "Iteration " << iter << endl;
Info<< typeName
<< " : Iteration " << iter << endl;
if (iter == nSnap)
{
Info<< "Displacement scaling for error reduction set to 0." << endl;
Info<< typeName
<< " : Displacement scaling for error reduction set to 0."
<< endl;
oldErrorReduction = meshMover_.setErrorReduction(0.0);
}
@ -1937,7 +2012,7 @@ bool Foam::medialAxisMeshMover::shrinkMesh
)
)
{
Info<< typeName << " :" << " Successfully moved mesh" << endl;
Info<< typeName << " : Successfully moved mesh" << endl;
meshOk = true;
break;
}