ENH: faceAgglomeration, vuew factor molde and view factor generator

applications/utilities/preProcessing/viewFactorGen/searchingEngine.H

@@ -0,0 +1,54 @@
+Random rndGen(653213);
+
+// Determine mesh bounding boxes:
+List<treeBoundBox> meshBb
+(
+    1,
+    treeBoundBox
+    (
+        boundBox(coarseMesh.points(), false)
+    ).extend(rndGen, 1E-3)
+);
+
+// Dummy bounds dictionary
+dictionary dict;
+dict.add("bounds", meshBb);
+dict.add
+(
+    "distributionType",
+    distributedTriSurfaceMesh::distributionTypeNames_
+    [
+        distributedTriSurfaceMesh::FROZEN
+    ]
+);
+dict.add("mergeDistance", SMALL);
+
+labelHashSet includePatches;
+forAll(patches, patchI) //
+{
+    if (!isA<processorPolyPatch>(patches[patchI]))
+    {
+        includePatches.insert(patchI);
+    }
+}
+
+distributedTriSurfaceMesh surfacesMesh
+(
+    IOobject
+    (
+        "wallSurface.stl",
+        runTime.constant(),     // directory
+        "triSurface",           // instance
+        runTime,                // registry
+        IOobject::NO_READ,
+        IOobject::NO_WRITE
+    ),
+    triSurfaceTools::triangulate
+    (
+        patches,
+        includePatches
+    ),
+    dict
+);
+
+//surfacesMesh.searchableSurface::write();