我认为您正在寻找trimesh功能。

在你的情况下，你会有类似的东西

pts = [31.1041, 28.3457, 29.165;
    40.6266, 28.3457, -1.10804;
    40.0714, 30.4443, -1.10804;
    40.7155, 31.1438, -1.10804;
    42.0257, 30.4443, -1.10804;
    43.4692, 28.3457, -1.10804;
    37.5425, 28.3457, 14.5117;
    37.0303, 30.4443, 14.2938;
    37.6244, 31.1438, 14.5466;
    38.8331, 30.4443, 15.0609;
    40.1647, 28.3457, 15.6274;
    29.0859, 28.3457, 27.1468;
    28.6917, 30.4443, 26.7527;
    29.149, 31.1438, 27.2099;
    30.0792, 30.4443, 28.1402];

T = [7, 6, 1;
    1, 2, 7;
    8, 7, 2;
    2, 3, 8;
    9, 8, 3;
    3, 4, 9;
    10, 9, 4;
    13, 12, 7];

trimesh(T, pts(:, 1), pts(:, 2), pts(:, 3))

但它似乎有一些重叠的三角形。