ENH: tetrahedron: move slicing with plane. Removed tetPointRef.H

applications/test/momentOfInertia/Test-momentOfInertia.C

@@ -35,7 +35,7 @@ Description
 #include "polyMesh.H"
 #include "ListOps.H"
 #include "face.H"
-#include "tetPointRef.H"
+#include "tetrahedron.H"
 #include "triFaceList.H"
 #include "OFstream.H"
 #include "meshTools.H"

applications/utilities/mesh/manipulation/createBaffles/createBaffles.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License

src/OpenFOAM/meshes/meshShapes/tetCell/tetCell.H

@@ -43,7 +43,7 @@ SourceFiles
 #include "triFace.H"
 #include "edge.H"
 #include "pointField.H"
-#include "tetPointRef.H"
+#include "tetrahedron.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 

src/OpenFOAM/meshes/polyMesh/polyMeshTetDecomposition/polyMeshTetDecomposition.H

@@ -42,7 +42,7 @@ SourceFiles
 #include "polyMesh.H"
 #include "coupledPolyPatch.H"
 #include "syncTools.H"
-#include "tetPointRef.H"
+#include "tetrahedron.H"
 #include "tetIndices.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

src/OpenFOAM/meshes/polyMesh/polyMeshTetDecomposition/tetIndices.H

@@ -38,7 +38,7 @@ SourceFiles
 #define tetIndices_H
 
 #include "label.H"
-#include "tetPointRef.H"
+#include "tetrahedron.H"
 #include "triPointRef.H"
 #include "polyMesh.H"
 #include "triFace.H"

src/OpenFOAM/meshes/polyMesh/polyPatches/constraint/cyclic/cyclicPolyPatch.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License

src/OpenFOAM/meshes/primitiveMesh/primitiveMeshCheck/primitiveMeshCheck.C

@@ -25,7 +25,7 @@ License
 
 #include "primitiveMesh.H"
 #include "pyramidPointFaceRef.H"
-#include "tetPointRef.H"
+#include "tetrahedron.H"
 #include "ListOps.H"
 #include "unitConversion.H"
 #include "SortableList.H"

src/OpenFOAM/meshes/primitiveShapes/tetrahedron/tetPointRef.H

-/*---------------------------------------------------------------------------*\
-  =========                 |
-  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
-   \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
-     \\/     M anipulation  |
--------------------------------------------------------------------------------
-License
-    This file is part of OpenFOAM.
-
-    OpenFOAM is free software: you can redistribute it and/or modify it
-    under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
-    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-    for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
-
-Typedef
-    Foam::tetPointRef
-
-Description
-
-\*---------------------------------------------------------------------------*/
-
-#ifndef tetPointRef_H
-#define tetPointRef_H
-
-#include "point.H"
-#include "tetrahedron.H"
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-namespace Foam
-{
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-typedef tetrahedron<point, const point&> tetPointRef;
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-} // End namespace Foam
-
-#endif
-
-// ************************************************************************* //

src/sampling/meshToMeshInterpolation/tetOverlapVolume/tetPoints.H → src/OpenFOAM/meshes/primitiveShapes/tetrahedron/tetPoints.H

@@ -35,9 +35,9 @@ SourceFiles
 #ifndef tetPoints_H
 #define tetPoints_H
 
+#include "tetrahedron.H"
 #include "FixedList.H"
 #include "treeBoundBox.H"
-#include "tetPointRef.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 

src/OpenFOAM/meshes/primitiveShapes/tetrahedron/tetrahedron.H

@@ -54,6 +54,8 @@ namespace Foam
 
 class Istream;
 class Ostream;
+class tetPoints;
+class plane;
 
 // Forward declaration of friend functions and operators
 
@@ -73,6 +75,7 @@ inline Ostream& operator<<
     const tetrahedron<Point, PointRef>&
 );
 
+typedef tetrahedron<point, const point&> tetPointRef;
 
 /*---------------------------------------------------------------------------*\
                            class tetrahedron Declaration
@@ -81,10 +84,71 @@ inline Ostream& operator<<
 template<class Point, class PointRef>
 class tetrahedron
 {
+public:
+
+        // Classes for use in sliceWithPlane. What to do with decomposition
+        // of tet.
+
+            //- Dummy
+            class dummyOp
+            {
+            public:
+                inline void operator()(const tetPoints&);
+            };
+
+            //- Sum resulting volumes
+            class sumVolOp
+            {
+            public:
+                scalar vol_;
+
+                inline sumVolOp();
+
+                inline void operator()(const tetPoints&);
+            };
+
+            //- Store resulting tets
+            class storeOp
+            {
+                FixedList<tetPoints, 200>& tets_;
+                label& nTets_;
+
+            public:
+                inline storeOp(FixedList<tetPoints, 200>&, label&);
+
+                inline void operator()(const tetPoints&);
+            };
+
+private:
+
     // Private data
 
         PointRef a_, b_, c_, d_;
 
+        inline static point planeIntersection
+        (
+            const FixedList<scalar, 4>&,
+            const tetPoints&,
+            const label,
+            const label
+        );
+
+        template<class TetOp>
+        inline static void decomposePrism
+        (
+            const FixedList<point, 6>& points,
+            TetOp& op
+        );
+
+        template<class AboveTetOp, class BelowTetOp>
+        inline static void tetSliceWithPlane
+        (
+            const plane& pl,
+            const tetPoints& tet,
+            AboveTetOp& aboveOp,
+            BelowTetOp& belowOp
+        );
+
 
 public:
 
@@ -184,6 +248,16 @@ public:
             //- Return true if point is inside tetrahedron
             inline bool inside(const point& pt) const;
 
+            //- Decompose tet into tets above and below plane
+            template<class AboveTetOp, class BelowTetOp>
+            inline void sliceWithPlane
+            (
+                const plane& pl,
+                AboveTetOp& aboveOp,
+                BelowTetOp& belowOp
+            ) const;
+
+
             //- Return (min)containment sphere, i.e. the smallest sphere with
             //  all points inside. Returns pointHit with:
             //  - hit         : if sphere is equal to circumsphere

src/OpenFOAM/meshes/primitiveShapes/tetrahedron/tetrahedronI.H

@@ -25,7 +25,8 @@ License
 
 #include "triangle.H"
 #include "IOstreams.H"
-#include "triPointRef.H"
+#include "tetPoints.H"
+#include "plane.H"
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
@@ -492,6 +493,483 @@ bool Foam::tetrahedron<Point, PointRef>::inside(const point& pt) const
 }
 
 
+template<class Point, class PointRef>
+inline void Foam::tetrahedron<Point, PointRef>::dummyOp::operator()
+(
+    const tetPoints&
+)
+{}
+
+
+template<class Point, class PointRef>
+inline Foam::tetrahedron<Point, PointRef>::sumVolOp::sumVolOp()
+:
+    vol_(0.0)
+{}
+
+
+template<class Point, class PointRef>
+inline void Foam::tetrahedron<Point, PointRef>::sumVolOp::operator()
+(
+    const tetPoints& tet
+)
+{
+    vol_ += tet.tet().mag();
+}
+
+
+template<class Point, class PointRef>
+inline Foam::tetrahedron<Point, PointRef>::storeOp::storeOp
+(
+    FixedList<tetPoints, 200>& tets,
+    label& nTets
+)
+:
+    tets_(tets),
+    nTets_(nTets)
+{}
+
+
+template<class Point, class PointRef>
+inline void Foam::tetrahedron<Point, PointRef>::storeOp::operator()
+(
+    const tetPoints& tet
+)
+{
+    tets_[nTets_++] = tet;
+}
+
+
+template<class Point, class PointRef>
+inline Foam::point Foam::tetrahedron<Point, PointRef>::planeIntersection
+(
+    const FixedList<scalar, 4>& d,
+    const tetPoints& t,
+    const label negI,
+    const label posI
+)
+{
+    return
+        (d[posI]*t[negI] - d[negI]*t[posI])
+      / (-d[negI]+d[posI]);
+}
+
+
+template<class Point, class PointRef>
+template<class TetOp>
+inline void Foam::tetrahedron<Point, PointRef>::decomposePrism
+(
+    const FixedList<point, 6>& points,
+    TetOp& op
+)
+{
+    op(tetPoints(points[1], points[3], points[2], points[0]));
+    op(tetPoints(points[1], points[2], points[3], points[4]));
+    op(tetPoints(points[4], points[2], points[3], points[5]));
+}
+
+
+template<class Point, class PointRef>
+template<class AboveTetOp, class BelowTetOp>
+inline void Foam::tetrahedron<Point, PointRef>::
+tetSliceWithPlane
+(
+    const plane& pl,
+    const tetPoints& tet,
+    AboveTetOp& aboveOp,
+    BelowTetOp& belowOp
+)
+{
+    // Distance to plane
+    FixedList<scalar, 4> d;
+    label nPos = 0;
+    forAll(tet, i)
+    {
+        d[i] = ((tet[i]-pl.refPoint()) & pl.normal());
+        if (d[i] > 0)
+        {
+            nPos++;
+        }
+    }
+
+    if (nPos == 4)
+    {
+        aboveOp(tet);
+    }
+    else if (nPos == 3)
+    {
+        // Sliced into below tet and above prism. Prism gets split into
+        // two tets.
+
+        // Find the below tet
+        label i0 = -1;
+        forAll(d, i)
+        {
+            if (d[i] <= 0)
+            {
+                i0 = i;
+                break;
+            }
+        }
+
+        label i1 = d.fcIndex(i0);
+        label i2 = d.fcIndex(i1);
+        label i3 = d.fcIndex(i2);
+
+        point p01 = planeIntersection(d, tet, i0, i1);
+        point p02 = planeIntersection(d, tet, i0, i2);
+        point p03 = planeIntersection(d, tet, i0, i3);
+
+        // i0 = tetCell vertex 0: p01,p02,p03 outwards pointing triad
+        //          ,,         1 :     ,,     inwards pointing triad
+        //          ,,         2 :     ,,     outwards pointing triad
+        //          ,,         3 :     ,,     inwards pointing triad
+
+        //Pout<< "Split 3pos tet " << tet << " d:" << d << " into" << nl;
+
+        if (i0 == 0 || i0 == 2)
+        {
+            tetPoints t(tet[i0], p01, p02, p03);
+            //Pout<< "    belowtet:" << t << " around i0:" << i0 << endl;
+            //checkTet(t, "nPos 3, belowTet i0==0 or 2");
+            belowOp(t);
+
+            // Prism
+            FixedList<point, 6> p;
+            p[0] = tet[i1];
+            p[1] = tet[i3];
+            p[2] = tet[i2];
+            p[3] = p01;
+            p[4] = p03;
+            p[5] = p02;
+            //Pout<< "    aboveprism:" << p << endl;
+            decomposePrism(p, aboveOp);
+        }
+        else
+        {
+            tetPoints t(p01, p02, p03, tet[i0]);
+            //Pout<< "    belowtet:" << t << " around i0:" << i0 << endl;
+            //checkTet(t, "nPos 3, belowTet i0==1 or 3");
+            belowOp(t);
+
+            // Prism
+            FixedList<point, 6> p;
+            p[0] = tet[i3];
+            p[1] = tet[i1];
+            p[2] = tet[i2];
+            p[3] = p03;
+            p[4] = p01;
+            p[5] = p02;
+            //Pout<< "    aboveprism:" << p << endl;
+            decomposePrism(p, aboveOp);
+        }
+    }
+    else if (nPos == 2)
+    {
+        // Tet cut into two prisms. Determine the positive one.
+        label pos0 = -1;
+        label pos1 = -1;
+        label neg0 = -1;
+        label neg1 = -1;
+        forAll(d, i)
+        {
+            if (d[i] > 0)
+            {
+                if (pos0 == -1)
+                {
+                    pos0 = i;
+                }
+                else
+                {
+                    pos1 = i;
+                }
+            }
+            else
+            {
+                if (neg0 == -1)
+                {
+                    neg0 = i;
+                }
+                else
+                {
+                    neg1 = i;
+                }
+            }
+        }
+
+        //Pout<< "Split 2pos tet " << tet << " d:" << d
+        //    << " around pos0:" << pos0 << " pos1:" << pos1
+        //    << " neg0:" << neg0 << " neg1:" << neg1 << " into" << nl;
+
+        const edge posEdge(pos0, pos1);
+
+        if (posEdge == edge(0, 1))
+        {
+            point p02 = planeIntersection(d, tet, 0, 2);
+            point p03 = planeIntersection(d, tet, 0, 3);
+            point p12 = planeIntersection(d, tet, 1, 2);
+            point p13 = planeIntersection(d, tet, 1, 3);
+            // Split the resulting prism
+            {
+                FixedList<point, 6> p;
+                p[0] = tet[0];
+                p[1] = p02;
+                p[2] = p03;
+                p[3] = tet[1];
+                p[4] = p12;
+                p[5] = p13;
+                //Pout<< "    01 aboveprism:" << p << endl;
+                decomposePrism(p, aboveOp);
+            }
+            {
+                FixedList<point, 6> p;
+                p[0] = tet[2];
+                p[1] = p02;
+                p[2] = p12;
+                p[3] = tet[3];
+                p[4] = p03;
+                p[5] = p13;
+                //Pout<< "    01 belowprism:" << p << endl;
+                decomposePrism(p, belowOp);
+            }
+        }
+        else if (posEdge == edge(1, 2))
+        {
+            point p01 = planeIntersection(d, tet, 0, 1);
+            point p13 = planeIntersection(d, tet, 1, 3);
+            point p02 = planeIntersection(d, tet, 0, 2);
+            point p23 = planeIntersection(d, tet, 2, 3);
+            // Split the resulting prism
+            {
+                FixedList<point, 6> p;
+                p[0] = tet[1];
+                p[1] = p01;
+                p[2] = p13;
+                p[3] = tet[2];
+                p[4] = p02;
+                p[5] = p23;
+                //Pout<< "    12 aboveprism:" << p << endl;
+                decomposePrism(p, aboveOp);
+            }
+            {
+                FixedList<point, 6> p;
+                p[0] = tet[3];
+                p[1] = p23;
+                p[2] = p13;
+                p[3] = tet[0];
+                p[4] = p02;
+                p[5] = p01;
+                //Pout<< "    12 belowprism:" << p << endl;
+                decomposePrism(p, belowOp);
+            }
+        }
+        else if (posEdge == edge(2, 0))
+        {
+            point p01 = planeIntersection(d, tet, 0, 1);
+            point p03 = planeIntersection(d, tet, 0, 3);
+            point p12 = planeIntersection(d, tet, 1, 2);
+            point p23 = planeIntersection(d, tet, 2, 3);
+            // Split the resulting prism
+            {
+                FixedList<point, 6> p;
+                p[0] = tet[2];
+                p[1] = p12;
+                p[2] = p23;
+                p[3] = tet[0];
+                p[4] = p01;
+                p[5] = p03;
+                //Pout<< "    20 aboveprism:" << p << endl;
+                decomposePrism(p, aboveOp);
+            }
+            {
+                FixedList<point, 6> p;
+                p[0] = tet[1];
+                p[1] = p12;
+                p[2] = p01;
+                p[3] = tet[3];
+                p[4] = p23;
+                p[5] = p03;
+                //Pout<< "    20 belowprism:" << p << endl;
+                decomposePrism(p, belowOp);
+            }
+        }
+        else if (posEdge == edge(0, 3))
+        {
+            point p01 = planeIntersection(d, tet, 0, 1);
+            point p02 = planeIntersection(d, tet, 0, 2);
+            point p13 = planeIntersection(d, tet, 1, 3);
+            point p23 = planeIntersection(d, tet, 2, 3);
+            // Split the resulting prism
+            {
+                FixedList<point, 6> p;
+                p[0] = tet[3];
+                p[1] = p23;
+                p[2] = p13;
+                p[3] = tet[0];
+                p[4] = p02;
+                p[5] = p01;
+                //Pout<< "    03 aboveprism:" << p << endl;
+                decomposePrism(p, aboveOp);
+            }
+            {
+                FixedList<point, 6> p;
+                p[0] = tet[2];
+                p[1] = p23;
+                p[2] = p02;
+                p[3] = tet[1];
+                p[4] = p13;
+                p[5] = p01;
+                //Pout<< "    03 belowprism:" << p << endl;
+                decomposePrism(p, belowOp);
+            }
+        }
+        else if (posEdge == edge(1, 3))
+        {
+            point p01 = planeIntersection(d, tet, 0, 1);
+            point p12 = planeIntersection(d, tet, 1, 2);
+            point p03 = planeIntersection(d, tet, 0, 3);