lc = 0.06;                
r1=1.000;
//===================================
// La sphere
//===================================

Point(1)  = { r1,0,0,lc} ;
Point(2)  = {    0,r1,0,lc} ;
Point(3)  = { 0,0,r1,lc} ;
Point(4)  = { 0,0,-r1,lc} ;
Point(10) = {    0,0,0,lc} ; 

Circle(1) = {1,10,2};
Circle(2) = {2,10,3};
Circle(3) = {3,10,1};

Circle(4) = {4,10,2};
Circle(5) = {1,10,4};

Line Loop(5)       = {1,2,3};
Ruled Surface(5)   = {5};

Line Loop(6)       = {4,-1,5};
Ruled Surface(6)   = {6};

a[] = Rotate { {0,0,1} , {0,0,0} , Pi/2  } { Duplicata{ Surface{5}; } } ;
b[] = Rotate { {0,0,1} , {0,0,0} , Pi    } { Duplicata{ Surface{5}; } } ;
c[] = Rotate { {0,0,1} , {0,0,0} , 3*Pi/2} { Duplicata{ Surface{5}; } } ;

d[] = Rotate { {0,0,1} , {0,0,0} , Pi/2  } { Duplicata{ Surface{6}; } } ;
e[] = Rotate { {0,0,1} , {0,0,0} , Pi    } { Duplicata{ Surface{6}; } } ;
f[] = Rotate { {0,0,1} , {0,0,0} , 3*Pi/2} { Duplicata{ Surface{6}; } } ;

Physical Surface(1)={5,a[],b[],c[],6,d[],e[],f[]};
Surface Loop(1)={5,a[],b[],c[],6,d[],e[],f[]};
                                                                                                              
Volume(1)={1};
Physical  Volume(2)={1};
