ENH: Using triangle quality without checking - check is now in triangle class.

applications/utilities/surface/surfaceCheck/surfaceCheck.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2004-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -315,32 +315,12 @@ int main(int argc, char *argv[])
             }
             else
             {
-                triPointRef tri
+                triQ[faceI] = triPointRef
                 (
                     surf.points()[f[0]],
                     surf.points()[f[1]],
                     surf.points()[f[2]]
-                );
-
-                vector ba(tri.b() - tri.a());
-                ba /= mag(ba) + VSMALL;
-
-                vector ca(tri.c() - tri.a());
-                ca /= mag(ca) + VSMALL;
-
-                if (mag(ba&ca) > 1-1E-3)
-                {
-                    triQ[faceI] = SMALL;
-                }
-                else
-                {
-                    triQ[faceI] = triPointRef
-                    (
-                        surf.points()[f[0]],
-                        surf.points()[f[1]],
-                        surf.points()[f[2]]
-                    ).quality();
-                }
+                ).quality();
             }
         }
 

src/OpenFOAM/meshes/primitiveShapes/triangle/triangleI.H

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2004-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -160,7 +160,15 @@ inline Foam::scalar Foam::triangle<Point, PointRef>::circumRadius() const
 template<class Point, class PointRef>
 inline Foam::scalar Foam::triangle<Point, PointRef>::quality() const
 {
-    return mag()/(Foam::sqr(circumRadius())*3.0*sqrt(3.0)/4.0 + VSMALL);
+    scalar c = circumRadius();
+
+    if (c < ROOTVSMALL)
+    {
+        // zero circumRadius, something has gone wrong.
+        return SMALL;
+    }
+
+    return mag()/(Foam::sqr(c)*3.0*sqrt(3.0)/4.0);
 }