ENH: cvMesh: Add quick rejection tests to octree and buildParallelInterface

applications/utilities/mesh/generation/cvMesh/conformalVoronoiMesh/backgroundMeshDecomposition/backgroundMeshDecomposition.C

@@ -724,6 +724,8 @@ void Foam::backgroundMeshDecomposition::buildPatchAndTree()
 
     globalBackgroundBounds_ = treeBoundBox(bbMin, bbMax);
 
+    octreeNearestDistances_ = bFTreePtr_().calcNearestDistance();
+
     if (cvMesh_.cvMeshControls().objOutput())
     {
         OFstream fStr
@@ -795,6 +797,7 @@ Foam::backgroundMeshDecomposition::backgroundMeshDecomposition
     ),
     boundaryFacesPtr_(),
     bFTreePtr_(),
+    octreeNearestDistances_(),
     allBackgroundMeshBounds_(Pstream::nProcs()),
     globalBackgroundBounds_(),
     decomposeDict_
@@ -1150,6 +1153,8 @@ bool Foam::backgroundMeshDecomposition::positionOnThisProcessor
     const point& pt
 ) const
 {
+//    return bFTreePtr_().findAnyOverlap(pt, 0.0);
+
     return
         bFTreePtr_().getVolumeType(pt)
      == indexedOctree<treeDataBPatch>::INSIDE;
@@ -1176,6 +1181,7 @@ bool Foam::backgroundMeshDecomposition::overlapsThisProcessor
     const treeBoundBox& box
 ) const
 {
+//    return !procBounds().contains(box);
     return !bFTreePtr_().findBox(box).empty();
 }
 
@@ -1183,9 +1189,11 @@ bool Foam::backgroundMeshDecomposition::overlapsThisProcessor
 bool Foam::backgroundMeshDecomposition::overlapsThisProcessor
 (
     const point& centre,
-    scalar radiusSqr
+    const scalar radiusSqr
 ) const
 {
+    //return bFTreePtr_().findAnyOverlap(centre, radiusSqr);
+
     return bFTreePtr_().findNearest(centre, radiusSqr).hit();
 }
 
@@ -1645,6 +1653,7 @@ Foam::labelListList Foam::backgroundMeshDecomposition::overlapsProcessors
 
         // If the sphere finds a nearest element of the patch, then it overlaps
         sphereOverlapsCandidate[sI] = bFTreePtr_().findNearest(c, rSqr).hit();
+        //sphereOverlapsCandidate[sI] = bFTreePtr_().findAnyOverlap(c, rSqr);
     }
 
     map().reverseDistribute

applications/utilities/mesh/generation/cvMesh/conformalVoronoiMesh/backgroundMeshDecomposition/backgroundMeshDecomposition.H

@@ -111,6 +111,8 @@ class backgroundMeshDecomposition
         //- Search tree for the boundaryFaces_ patch
         autoPtr<indexedOctree<treeDataBPatch> > bFTreePtr_;
 
+        List<scalar> octreeNearestDistances_;
+
         //- The bounds of all background meshes on all processors
         treeBoundBoxList allBackgroundMeshBounds_;
 
@@ -225,16 +227,16 @@ public:
         //- Are the given positions inside the domain of this decomposition
         boolList positionOnThisProcessor(const List<point>& pts) const;
 
-        //- Does the given box overlap the faces of the bounday of this
+        //- Does the given box overlap the faces of the boundary of this
         //  processor
         bool overlapsThisProcessor(const treeBoundBox& box) const;
 
-        //- Does the given sphere overlap the faces of the bounday of this
+        //- Does the given sphere overlap the faces of the boundary of this
         //  processor
         bool overlapsThisProcessor
         (
             const point& centre,
-            scalar radiusSqr
+            const scalar radiusSqr
         ) const;
 
         //- Find nearest intersection of line between start and end, (exposing
@@ -289,6 +291,12 @@ public:
             //- Return access to the underlying mesh
             inline const fvMesh& mesh() const;
 
+            //- Return access to the underlying tree
+            inline const indexedOctree<treeDataBPatch>& tree() const;
+
+            //- Return access to the nearest distance of the octree nodes
+            inline const List<scalar>& octreeNearestDistances() const;
+
             //- Return the boundBox of this processor
             inline const treeBoundBox& procBounds() const;
 };

applications/utilities/mesh/generation/cvMesh/conformalVoronoiMesh/backgroundMeshDecomposition/backgroundMeshDecompositionI.H

@@ -30,6 +30,18 @@ const Foam::fvMesh& Foam::backgroundMeshDecomposition::mesh() const
     return mesh_;
 }
 
+const Foam::indexedOctree<Foam::treeDataBPatch>&
+Foam::backgroundMeshDecomposition::tree() const
+{
+    return bFTreePtr_();
+}
+
+const Foam::List<Foam::scalar>&
+Foam::backgroundMeshDecomposition::octreeNearestDistances() const
+{
+    return octreeNearestDistances_;
+}
+
 
 const Foam::treeBoundBox& Foam::backgroundMeshDecomposition::procBounds() const
 {