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ENH: pointToPointPlanarInterpolation: additional nearest only interpolation

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This commit is contained in:
mattijs
2014-09-03 11:45:53 +01:00
committed by Andrew Heather
parent 820bc3943a
commit b554c1da8b
3 changed files with 166 additions and 97 deletions
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2
src/meshTools/Make/options
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@ -1,7 +1,9 @@
EXE_INC = \
-I$(LIB_SRC)/triSurface/lnInclude \
-I$(LIB_SRC)/surfMesh/lnInclude \
-I$(LIB_SRC)/fileFormats/lnInclude
LIB_LIBS = \
-ltriSurface \
-lsurfMesh \
-lfileFormats

83
src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolation.C
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@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2012-2013 OpenFOAM Foundation
\\ / A nd | Copyright (C) 2012-2014 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -29,8 +29,9 @@ License
#include "vector2D.H"
#include "triSurface.H"
#include "triSurfaceTools.H"
#include "OFstream.H"
#include "OBJstream.H"
#include "Time.H"
#include "matchPoints.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
@ -138,6 +139,65 @@ void Foam::pointToPointPlanarInterpolation::calcWeights
const pointField& sourcePoints,
const pointField& destPoints
)
{
if (nearestOnly_)
{
labelList destToSource;
bool fullMatch = matchPoints
(
destPoints,
sourcePoints,
scalarField(destPoints.size(), GREAT),
true, // verbose
destToSource
);
if (!fullMatch)
{
FatalErrorIn("pointToPointPlanarInterpolation::calcWeights(..)")
<< "Did not find a corresponding sourcePoint for every face"
<< " centre" << exit(FatalError);
}
nearestVertex_.setSize(destPoints.size());
nearestVertexWeight_.setSize(destPoints.size());
forAll(nearestVertex_, i)
{
nearestVertex_[i][0] = destToSource[i];
nearestVertex_[i][1] = -1;
nearestVertex_[i][2] = -1;
nearestVertexWeight_[i][0] = 1.0;
nearestVertexWeight_[i][1] = 0.0;
nearestVertexWeight_[i][2] = 0.0;
}
if (debug)
{
forAll(destPoints, i)
{
label v0 = nearestVertex_[i][0];
Pout<< "For location " << destPoints[i]
<< " sampling vertex " << v0
<< " at:" << sourcePoints[v0]
<< " distance:" << mag(sourcePoints[v0]-destPoints[i])
<< endl;
}
OBJstream str("destToSource.obj");
Pout<< "pointToPointPlanarInterpolation::calcWeights :"
<< " Dumping lines from face centres to original points to "
<< str.name() << endl;
forAll(destPoints, i)
{
label v0 = nearestVertex_[i][0];
str.write(linePointRef(destPoints[i], sourcePoints[v0]));
}
}
}
else
{
tmp<vectorField> tlocalVertices
(
@ -150,7 +210,7 @@ void Foam::pointToPointPlanarInterpolation::calcWeights
if (debug)
{
Info<< "pointToPointPlanarInterpolation::readData :"
Info<< "pointToPointPlanarInterpolation::calcWeights :"
<< " Perturbing points with " << perturb_
<< " fraction of a random position inside " << bb
<< " to break any ties on regular meshes."
@ -186,18 +246,17 @@ void Foam::pointToPointPlanarInterpolation::calcWeights
if (debug)
{
Pout<< "pointToPointPlanarInterpolation::readData :"
Pout<< "pointToPointPlanarInterpolation::calcWeights :"
<<" Dumping triangulated surface to triangulation.stl" << endl;
s.write("triangulation.stl");
OFstream str("localFaceCentres.obj");
Pout<< "readSamplePoints :"
OBJstream str("localFaceCentres.obj");
Pout<< "pointToPointPlanarInterpolation::calcWeights :"
<< " Dumping face centres to " << str.name() << endl;
forAll(localFaceCentres, i)
{
const point& p = localFaceCentres[i];
str<< "v " << p.x() << ' ' << p.y() << ' ' << p.z() << nl;
str.write(localFaceCentres[i]);
}
}
@ -219,7 +278,6 @@ void Foam::pointToPointPlanarInterpolation::calcWeights
<< endl;
}
forAll(destPoints, i)
{
label v0 = nearestVertex_[i][0];
@ -250,6 +308,7 @@ void Foam::pointToPointPlanarInterpolation::calcWeights
}
}
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
@ -258,13 +317,14 @@ Foam::pointToPointPlanarInterpolation::pointToPointPlanarInterpolation
(
const pointField& sourcePoints,
const pointField& destPoints,
const scalar perturb
const scalar perturb,
const bool nearestOnly
)
:
perturb_(perturb),
nearestOnly_(nearestOnly),
referenceCS_(calcCoordinateSystem(sourcePoints)),
nPoints_(sourcePoints.size())
{
calcWeights(sourcePoints, destPoints);
}
@ -279,6 +339,7 @@ Foam::pointToPointPlanarInterpolation::pointToPointPlanarInterpolation
)
:
perturb_(perturb),
nearestOnly_(false),
referenceCS_(referenceCS),
nPoints_(sourcePoints.size())
{

12
src/meshTools/triSurface/triSurfaceTools/pointToPointPlanarInterpolation.H
View File

@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2012-2013 OpenFOAM Foundation
\\ / A nd | Copyright (C) 2012-2014 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -56,6 +56,9 @@ class pointToPointPlanarInterpolation
//- Perturbation factor
const scalar perturb_;
//- Whether to use nearest point only (avoids triangulation, projection)
const bool nearestOnly_;
//- Coordinate system
coordinateSystem referenceCS_;
@ -91,12 +94,15 @@ public:
// Constructors
//- Construct from 3D locations. Determines local coordinate system
// from sourcePoints and maps onto that.
// from sourcePoints and maps onto that. If nearestOnly skips any
// local coordinate system and triangulation and uses nearest vertex
// only
pointToPointPlanarInterpolation
(
const pointField& sourcePoints,
const pointField& destPoints,
const scalar perturb
const scalar perturb,
const bool nearestOnly = false
);
//- Construct from coordinate system and locations.