L = 0.05; H = 0.6; y = 0; lc = 0.001; Point(1) = {-L, H, 0}; Point(2) = {-L, -H, 0}; Point(3) = {L, -H, 0}; Point(4) = {L, H, 0}; Line(1) = {1, 2}; Line(2) = {2, 3}; Line(3) = {3, 4}; Line(4) = {4, 1}; Point(5) = {0,0.52,0}; Line Loop(1) = {1:4}; Plane Surface(1) = {1}; Physical Line("Bottom") = {2}; Physical Line("Lateral") = {1,3}; Physical Line("Top") = {4}; Physical Surface("Domain") = {1}; Physical Point("PtFix") = {1}; Field[1] = Attractor; Field[1].NodesList = {5}; Field[2] = Threshold; Field[2].DistMax = 0.08; Field[2].DistMin = 0.02; Field[2].LcMax = 0.008; Field[2].LcMin = 0.0005; Field[2].IField = 1; Background Field = 2; Mesh.CharacteristicLengthFromPoints = 0; Mesh.CharacteristicLengthExtendFromBoundary = 0; Mesh.MshFileVersion = 2;