lcar1 = 2.;
a = 120.; 
// major axis dimension of ellipse
b = 0.3*a;
// minor axis dimension of ellipse
c = 0.1*a;
Point(1)  = {0, 0, 0,lcar1};
Point(2)  = {-a/2,-a/2,0,lcar1};
Point(3)  = { a/2,-a/2,0,lcar1};
Point(4)  = { a/2, a/2,0,lcar1};
Point(5)  = {-a/2, a/2,0,lcar1};
Point(6)  = {b,0,0,lcar1};
Point(7)  = {0,c,0,lcar1};
Point(8)  = {-b,0,0,lcar1};
Point(9)  = {0,-c,0,lcar1};
Point(10) = {a/2,0,0,lcar1};
Point(11) = {0,a/2,0,lcar1};
Point(12) = {-a/2,0,0,lcar1};
Point(13) = {0,-a/2,0,lcar1};
Line(1) = {2,3};
Line(2) = {3,4};
Line(3) = {4,5};
Line(4) = {5,2};

// Ellipse
// the first expression inside the braces on the right hand side gives the identification number of the start point of the arc; 
// the second expression gives the identification number of the center of the ellipse; 
// the third expression gives the identification number of any point located on the major axis of the ellipse; 
// the last expression gives the identification number of the end point of the arc. 

Ellipse(5) = {6,1,6,7};
Ellipse(6) = {7,1,8,8};
Ellipse(7) = {8,1,8,9};
Ellipse(8) = {9,1,8,6};

//Line(9)  = {6,10};
//Line(10) = {7,11};
//Line(11) = {8,12};
//Line(12) = {9,13};

Line Loop(16) = {5, 6, 7, 8, -3, -2, -1, -4};
Plane Surface(16) = {16};
