adding-shape…

implicit.geo
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			h = 1;
			height = 1.0;
			length = 1.0;
			epsilon = 1e-3;

			Point(1) = {0, 0, 0, h*0.2};
			Point(2) = {length, 0, 0, h*0.2};
			Point(3) = {length, height/2-epsilon, 0, h*0.2};
			Point(4) = {length, height, 0, h*0.2};
			Point(5) = {0, height, 0, h*0.2};
			Point(6) = {0, height/2+epsilon, 0, h*0.2};
			Point(7) = {length, height/2+epsilon, 0, h*0.2};
			Point(8) = {0, height/2-epsilon, 0, h*0.2};

			Line(1) = {1, 2};
			Line(2) = {2, 3};
			Line(3) = {7, 4};
			Line(4) = {4, 5};
			Line(5) = {5, 6};
			Line(6) = {6, 7};
			Line(7) = {8, 1};
			Line(8) = {3, 8};

			Line Loop(1) = {1, 2, 8, 7};
			Line Loop(2) = {3, 4, 5, 6};

			Plane Surface(1) = {1};
			Plane Surface(2) = {2};

			Physical Line ("top") = {4};
			Physical Line ("bottom") = {1};

			Physical Line ("contact_top") = {6};
			Physical Line ("contact_bottom") = {8};

			Physical Surface("bot_body") = {1};
			Physical Surface("top_body") = {2};

			Transfinite Surface{1, 2};
			Recombine Surface{1, 2};