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ENH: Snapping to surfaces if point is far outside

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This commit is contained in:
laurence
2013-06-12 13:08:15 +01:00
parent d48c4423b4
commit 838639cd5d
1 changed files with 87 additions and 0 deletions
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87
applications/utilities/mesh/generation/foamyHexMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshCalcDualMesh.C
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@ -1787,6 +1787,11 @@ void Foam::conformalVoronoiMesh::indexDualVertices
} }
} }
OBJstream snapping1("snapToSurface1.obj");
OBJstream snapping2("snapToSurface2.obj");
OFstream tetToSnapTo("tetsToSnapTo.obj");
label offset = 0;
for for
( (
Delaunay::Finite_cells_iterator cit = finite_cells_begin(); Delaunay::Finite_cells_iterator cit = finite_cells_begin();
@ -1892,6 +1897,88 @@ void Foam::conformalVoronoiMesh::indexDualVertices
} }
} }
{
// Snapping points far outside
if (cit->boundaryDualVertex())
{
pointFromPoint dual = cit->dual();
pointIndexHit hitInfo;
label surfHit;
// Find nearest surface point
geometryToConformTo_.findSurfaceNearest
(
dual,
sqr(targetCellSize(dual)),
hitInfo,
surfHit
);
if (!hitInfo.hit())
{
// Project dual to nearest point on tet
tetPointRef tet
(
topoint(cit->vertex(0)->point()),
topoint(cit->vertex(1)->point()),
topoint(cit->vertex(2)->point()),
topoint(cit->vertex(3)->point())
);
pointFromPoint nearestPointOnTet =
tet.nearestPoint(dual).rawPoint();
// Get nearest point on surface from tet.
geometryToConformTo_.findSurfaceNearest
(
nearestPointOnTet,
sqr(targetCellSize(nearestPointOnTet)),
hitInfo,
surfHit
);
vector snapDir = nearestPointOnTet - dual;
snapDir /= mag(snapDir) + SMALL;
drawDelaunayCell(tetToSnapTo, cit, offset);
offset += 1;
vectorField norm(1);
allGeometry_[surfHit].getNormal
(
List<pointIndexHit>(1, hitInfo),
norm
);
norm[0] /= mag(norm[0]) + SMALL;
if
(
hitInfo.hit()
&& (mag(snapDir & norm[0]) > 0.5)
)
{
snapping1.write
(
linePointRef(dual, nearestPointOnTet)
);
snapping2.write
(
linePointRef
(
nearestPointOnTet,
hitInfo.hitPoint()
)
);
pts[cit->cellIndex()] = hitInfo.hitPoint();
}
}
}
}
if (cit->boundaryDualVertex()) if (cit->boundaryDualVertex())
{ {
if (cit->featureEdgeDualVertex()) if (cit->featureEdgeDualVertex())