// ----------------- overlap configuration ------------------------------
// numberOfGridGroups: The number of grid groups.
// codeOfOversetGrid: Overlapping(overset) grid or not.
//             0 -- NON-overlapping grid.
//             1 -- Overlapping grid.
// readOversetFileOrNo: Whether to read overset-file(.ovs) that has been generated.
//             0 -- no.
//             1 -- yes.
// symetryOrNot: If there exist symetryplanes(XY plane, the coordinate of Z direction is 0) in 
                 the current overset grid(only for three dimension).
//             0 -- no.
//             1 -- yes.
// readInAuxiliaryInnerGrid: Whether to read auxiliary inner grid
//             0 -- no.
//             1 -- yes.
// twoOrderInterpolationOrNot: The number of interpolated cell layers in the overlapping boundary.
//             0 -- one layer.
//             1 -- two layers.
// keyEnlargeOfActiveNodes: The number of enlarged overset-boundary layers in the buffer region.
// outTecplotOverset: Whether to dump out the flowfield data after the progress of overset configure.
//             0 -- no.
//             1 -- yes.

int    numberOfGridGroups   = 3;
string gridfile             = "./grid/background__4.fts"; 
string gridfile1            = "./grid/upperwing__4.fts";
string gridfile2            = "./grid/lowerwing__4.fts";
int    codeOfOversetGrid          = 1;            
int    readOversetFileOrNot       = 0;      
int    symetryOrNot               = 0;      
int    readInAuxiliaryInnerGrid   = 1;    
double gridScaleFactor            = 0.001;        
string auxiliaryInnerGrid0        = "./grid/aux-upper.fts";
string auxiliaryInnerGrid1        = "./grid/aux-lower.fts";
string oversetGridFileName        = "./grid/overlap.ovs";
double walldistMainZone           = 1.0
double toleranceForOversetSearch  = 1e-3;
double toleranceForOversetBox     = 1e-3;
int    twoOrderInterpolationOrNot = 1;     
int    keyEnlargeOfActiveNodes    = 1;      
int    outTecplotOverset          = 1;