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已知：曲面上网格的点坐标，想用OpenGL中函数的曲面进行拟合，要求曲面经过这这些网格点！望各位高手指点谢谢！
网格点的坐标如下：（形状类似于圆柱状；坐标的规律为，每个切面36各点，共4个切面）
附件为该对象的网格图形
X坐标 Y坐标 Z坐标
0.000021, 16.202921, -26.933998
1.734384, 15.921248, -26.933998
3.528684, 15.772727, -26.933998
5.296133, 15.223372, -26.933998
6.982949, 14.327156, -26.933998
8.611653, 13.173288, -26.933998
10.015794, 11.653539, -26.933998
11.388852, 9.929522, -26.933998
12.491981, 7.884253, -26.933998
13.307647, 5.565081, -26.933998
13.482960, 3.061929, -26.933998
12.884762, 0.107288, -26.933998
11.747651, -1.576154, -26.933998
10.024239, -3.291121, -26.933998
7.867477, -4.306893, -26.933998
5.653750, -4.745384, -26.933998
3.603870, -4.860065, -26.933998
1.748186, -4.873497, -26.933998
0.000021, -4.898122, -26.933998
-1.748088, -4.873497, -26.933998
-3.603773, -4.860065, -26.933998
-5.653654, -4.745385, -26.933998
-7.867379, -4.306894, -26.933998
-10.024142, -3.291121, -26.933998
-11.747555, -1.576154, -26.933998
-12.884666, 0.107288, -26.933998
-13.482864, 3.061928, -26.933998
-13.307551, 5.565082, -26.933998
-12.491885, 7.884255, -26.933998
-11.388756, 9.929524, -26.933998
-10.015697, 11.653539, -26.933998
-8.611557, 13.173288, -26.933998
-6.982853, 14.327156, -26.933998
-5.296038, 15.223372, -26.933998
-3.528587, 15.772727, -26.933998
-1.734288, 15.921248, -26.933998
0.000000, 16.808744, -23.933998
1.558563, 16.725831, -23.933998
3.120318, 16.418075, -23.933998
4.668597, 15.854999, -23.933998
6.206411, 15.057111, -23.933998
7.756397, 14.029728, -23.933998
9.376594, 12.763252, -23.933998
11.031684, 11.145612, -23.933998
12.310866, 9.011932, -23.933998
12.861443, 6.500820, -23.933998
12.484435, 3.954306, -23.933998
11.395343, 1.702915, -23.933998
10.168876, -0.001854, -23.933998
8.602654, -1.849524, -23.933998
6.845095, -2.935972, -23.933998
5.046924, -3.611386, -23.933998
3.216016, -3.720591, -23.933998
1.539717, -3.600553, -23.933998
0.000000, -3.796580, -23.933998
-1.539716, -3.600553, -23.933998
-3.216016, -3.720591, -23.933998
-5.046924, -3.611386, -23.933998
-6.845094, -2.935973, -23.933998
-8.602654, -1.849523, -23.933998
-10.168876, -0.001854, -23.933998
-11.395343, 1.702915, -23.933998
-12.484435, 3.954306, -23.933998
-12.861443, 6.500823, -23.933998
-12.310866, 9.011933, -23.933998
-11.031684, 11.145613, -23.933998
-9.376594, 12.763252, -23.933998
-7.756396, 14.029728, -23.933998
-6.206411, 15.057111, -23.933998
-4.668598, 15.854998, -23.933998
-3.120318, 16.418075, -23.933998
-1.558562, 16.725831, -23.933998
0.000000, 16.506456, -20.036102
1.706956, 16.425975, -20.036102
3.417409, 16.127249, -20.036102
5.113103, 15.580694, -20.036102
6.797335, 14.806217, -20.036102
8.494897, 13.808979, -20.036102
10.269356, 12.579662, -20.036102
12.082030, 11.009484, -20.036102
13.483005, 8.938409, -20.036102
14.086003, 6.500975, -20.036102
13.673100, 4.029177, -20.036102
12.480314, 1.843844, -20.036102
11.137072, 0.128723, -20.036102
9.421728, -1.604364, -20.036102
7.496829, -2.658935, -20.036102
5.527451, -3.314531, -20.036102
3.522219, -3.420533, -20.036102
1.686316, -3.304017, -20.036102
0.000000, -3.494292, -20.036102
-1.686315, -3.304017, -20.036102
-3.522219, -3.420533, -20.036102
-5.527451, -3.314531, -20.036102
-7.496828, -2.658936, -20.036102
-9.421728, -1.604363, -20.036102
-11.137072, 0.128723, -20.036102
-12.480314, 1.843844, -20.036102
-13.673100, 4.029177, -20.036102
-14.086003, 6.500977, -20.036102
-13.483005, 8.938410, -20.036102
-12.082030, 11.009485, -20.036102
-10.269356, 12.579662, -20.036102
-8.494896, 13.808979, -20.036102
-6.797335, 14.806217, -20.036102
-5.113104, 15.580693, -20.036102
-3.417409, 16.127249, -20.036102
-1.706955, 16.425975, -20.036102
-0.000000, 16.422717, -16.217903
1.958212, 16.325936, -16.217903
3.922565, 15.988197, -16.217903
5.873074, 15.366343, -16.217903
7.893612, 14.579405, -16.217903
10.130625, 13.647042, -16.217903
12.474283, 12.311622, -16.217903
14.368162, 10.283208, -16.217903
15.531466, 7.721562, -16.217903
15.952620, 4.905239, -16.217903
15.419225, 2.109269, -16.217903
14.162800, 0.111292, -16.217903
12.502314, -2.517789, -16.217903
10.519079, -4.171763, -16.217903
8.307751, -5.276484, -16.217903
6.069540, -5.905809, -16.217903
3.913591, -6.152365, -16.217903
1.896823, -6.157424, -16.217903
-0.000000, -6.111471, -16.217903
-1.896828, -6.157424, -16.217903
-3.913596, -6.152365, -16.217903
-6.069544, -5.905810, -16.217903
-8.307754, -5.276485, -16.217903
-10.519084, -4.171763, -16.217903
-12.502320, -2.517788, -16.217903
-14.162805, 0.111292, -16.217903
-15.419230, 2.109268, -16.217903
-15.952625, 4.905241, -16.217903
-15.531472, 7.721564, -16.217903
-14.368168, 10.283210, -16.217903
-12.474287, 12.311623, -16.217903
-10.130631, 13.647042, -16.217903
-7.893617, 14.579405, -16.217903
-5.873081, 15.366342, -16.217903
-3.922570, 15.988197, -16.217903
-1.958217, 16.325936, -16.217903
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发表于 2005-10-11 11:32:00
楼主