my_model(x[3], a[1])
{
array center[9],center2[3],center3[3];
array radius[3],radius2[1],radius3[1];
array theta[3],theta2[1],theta3[1];
array rotate_axis[9],rotate_axis2[3],rotate_axis3[3];
array rotate_angle[3],rotate_angle2[1],rotate_angle3[1],
      rotate_angle4[1],rotate_angle5[1],rotate_angle6[1];
array S[3],S2[1],S3[1];

----------------------------------------------------------
center = [0.0, 0.0, 0.0,
          0.0, 0.0, 0.0,
          0.0, 0.0, 0.0];
radius = [8.5, 8.5, 8.5];
theta = [360.0, 360.0, 360.0];
rotate_axis = [0.0, 0.0, 1.0,
               0.0, 1.0, 0.0,
               1.0, 0.0, 0.0];
rotate_angle = [0.0, 90.0, 90.0];
S = [0.65, 0.65, 0.65];
myarc = hfConvArc(x,center,radius,theta,rotate_axis,rotate_angle,S,0.22);

------------------------------------------------------------

center2 = [0.0, 0.0, 0.0];
radius2 = [6.0];
theta2 = [70.0];
rotate_axis2 = [0.0, 0.0, 1.0];
rotate_angle2 = [10.0];
rotate_angle3 = [100.0];
rotate_angle4 = [190.0];
rotate_angle5 = [280.0];
S2 = [0.5];

myarc2 = hfConvArc(x,center2,radius2,theta2,rotate_axis2,rotate_angle2,S2,0.4);
myarc3 = hfConvArc(x,center2,radius2,theta2,rotate_axis2,rotate_angle3,S2,0.4);
myarc4 = hfConvArc(x,center2,radius2,theta2,rotate_axis2,rotate_angle4,S2,0.4);
myarc5 = hfConvArc(x,center2,radius2,theta2,rotate_axis2,rotate_angle5,S2,0.4);

------------------------------------------------------------

center3 = [0.0, 0.0, 0.0];
radius3 = [2.0];
theta3 = [360.0];
rotate_axis3 = [0.0, 0.0, 1.0];
rotate_angle6 = [0.0];
S3 = [0.6];

myarc6 = hfConvArc(x,center3,radius3,theta3,rotate_axis3,rotate_angle6,S3,0.5);

-----------------------------------------------------------

my_model = myarc | myarc2 | myarc3 | myarc4 | myarc5 | myarc6;
}