// merge vector view (View[0])
Merge "sphere_boundary_layer_from_view.pos";

// create scalar view View[1] for testing
Plugin(MathEval).Run;

lc = 0.2;

Point(1) = {0.0,0.0,0.0,lc};
Point(2) = {1,0.0,0.0,lc};
Point(3) = {0,1,0.0,lc};
Circle(1) = {2,1,3};
Point(4) = {-1,0,0.0,lc};
Point(5) = {0,-1,0.0,lc};
Circle(2) = {3,1,4};
Circle(3) = {4,1,5};
Circle(4) = {5,1,2};
Point(6) = {0,0,-1,lc};
Point(7) = {0,0,1,lc};
Circle(5) = {3,1,6};
Circle(6) = {6,1,5};
Circle(7) = {5,1,7};
Circle(8) = {7,1,3};
Circle(9) = {2,1,7};
Circle(10) = {7,1,4};
Circle(11) = {4,1,6};
Circle(12) = {6,1,2};

Line Loop(13) = {2,8,-10};
Surface(14) = {13};
Line Loop(15) = {10,3,7};
Surface(16) = {15};
Line Loop(17) = {-8,-9,1};
Surface(18) = {17};
Line Loop(19) = {-11,-2,5};
Surface(20) = {19};
Line Loop(21) = {-5,-12,-1};
Surface(22) = {21};
Line Loop(23) = {-3,11,6};
Surface(24) = {23};
Line Loop(25) = {-7,4,9};
Surface(26) = {25};
Line Loop(27) = {-4,12,-6};
Surface(28) = {27};

tmp[] = Extrude {
  Surface{14:28:2}; Layers{5, 0.2}; Recombine;
  //Using View[0]; // provide extrude directions using vector field
  Using View[1];  // use mesh normals, but scaled by scalar field
};

// test 2nd bnd layer
//Extrude { Surface{14:28:2}; Layers{5, -0.2}; Recombine; Using View[0]; Using Index[1]; }