x=[ 0.000000  499.000000  635.386108  0.000000  0.000000  100.774246  0.000000  2.000000  501.000000  1000.000000  1000.000000 ];
y=[ 0.000000  0.000000  227.207596  0.000000  2.000000  488.250031  501.000000  1000.000000  1000.000000  998.000000  499.000000 ];
z=[ 0  0  0  0  0  0  0  0  0  0  0 ];
tri = [1 2 3; 2 3 11; 3 10 11; 3 9 10; 3 4 9; 4 6 9; 1 3 4; 5 6 7; 4 5 6; 6 7 8; 6 8 9];
trimesh(tri, x, y, z);