有没有大佬知道如何用OPENGL读取下面这个IGES文件所包含的实体啊

[超爱米粥]

START RECORD GO HERE. S 1
1H,,1H;,5HA___1,7HAAA.igs,44HDASSAULT SYSTEMES CATIA V5 R20 - www.3ds.coG 1
m,27HCATIA Version 5 Release 20 ,32,75,6,75,15,5HA___1,1.0,2,2HMM,1000, G 2
1.0,15H20210228.154338,0.001,10000.0,6H__N__u,15HDESKTOP-IVI2DF0,11,0, G 3
15H20210228.154338,; G 4
108 1 0 0 0 0 0 001010001D 1
108 0 0 1 0 0D 2
110 2 0 0 0 0 0 001010001D 3
110 0 0 1 0 0D 4
110 3 0 0 0 0 0 001010001D 5
110 0 0 1 0 0D 6
110 4 0 0 0 0 0 001010001D 7
110 0 0 1 0 0D 8
110 5 0 0 0 0 0 001010001D 9
110 0 0 1 0 0D 10
102 6 0 0 0 0 0 001010001D 11
102 0 0 1 0 0D 12
142 7 0 0 0 0 0 001010001D 13
142 0 0 1 0 0D 14
144 8 0 0 10000 0 0 000000000D 15
144 0 0 1 0 A____ 0D 16
108 9 0 0 0 0 0 001010001D 17
108 0 0 1 0 0D 18
110 10 0 0 0 0 0 001010001D 19
110 0 0 1 0 0D 20
110 11 0 0 0 0 0 001010001D 21
110 0 0 1 0 0D 22
110 12 0 0 0 0 0 001010001D 23
110 0 0 1 0 0D 24
110 13 0 0 0 0 0 001010001D 25
110 0 0 1 0 0D 26
102 14 0 0 0 0 0 001010001D 27
102 0 0 1 0 0D 28
142 15 0 0 0 0 0 001010001D 29
142 0 0 1 0 0D 30
144 16 0 0 10000 0 0 000000000D 31
144 0 0 1 0 A____ 0D 32
108 17 0 0 0 0 0 001010001D 33
108 0 0 1 0 0D 34
110 18 0 0 0 0 0 001010001D 35
110 0 0 1 0 0D 36
110 19 0 0 0 0 0 001010001D 37
110 0 0 1 0 0D 38
110 20 0 0 0 0 0 001010001D 39
110 0 0 1 0 0D 40
110 21 0 0 0 0 0 001010001D 41
110 0 0 1 0 0D 42
102 22 0 0 0 0 0 001010001D 43
102 0 0 1 0 0D 44
142 23 0 0 0 0 0 001010001D 45
142 0 0 1 0 0D 46
144 24 0 0 10000 0 0 000000000D 47
144 0 0 1 0 A____ 0D 48
108 25 0 0 0 0 0 001010001D 49
108 0 0 1 0 0D 50
110 26 0 0 0 0 0 001010001D 51
110 0 0 1 0 0D 52
110 27 0 0 0 0 0 001010001D 53
110 0 0 1 0 0D 54
110 28 0 0 0 0 0 001010001D 55
110 0 0 1 0 0D 56
110 29 0 0 0 0 0 001010001D 57
110 0 0 1 0 0D 58
102 30 0 0 0 0 0 001010001D 59
102 0 0 1 0 0D 60
142 31 0 0 0 0 0 001010001D 61
142 0 0 1 0 0D 62
144 32 0 0 10000 0 0 000000000D 63
144 0 0 1 0 A____ 0D 64
108 33 0 0 0 0 0 001010001D 65
108 0 0 1 0 0D 66
110 34 0 0 0 0 0 001010001D 67
110 0 0 1 0 0D 68
110 35 0 0 0 0 0 001010001D 69
110 0 0 1 0 0D 70
110 36 0 0 0 0 0 001010001D 71
110 0 0 1 0 0D 72
110 37 0 0 0 0 0 001010001D 73
110 0 0 1 0 0D 74
102 38 0 0 0 0 0 001010001D 75
102 0 0 1 0 0D 76
142 39 0 0 0 0 0 001010001D 77
142 0 0 1 0 0D 78
144 40 0 0 10000 0 0 000000000D 79
144 0 0 1 0 A____ 0D 80
108 41 0 0 0 0 0 001010001D 81
108 0 0 1 0 0D 82
110 42 0 0 0 0 0 001010001D 83
110 0 0 1 0 0D 84
110 43 0 0 0 0 0 001010001D 85
110 0 0 1 0 0D 86
110 44 0 0 0 0 0 001010001D 87
110 0 0 1 0 0D 88
110 45 0 0 0 0 0 001010001D 89
110 0 0 1 0 0D 90
102 46 0 0 0 0 0 001010001D 91
102 0 0 1 0 0D 92
142 47 0 0 0 0 0 001010001D 93
142 0 0 1 0 0D 94
144 48 0 0 10000 0 0 000000000D 95
144 0 0 1 0 A____ 0D 96
108,0.0,-1.0,0.0,-10.0,0,-20.0,10.0,0.0,1.0,0,0; 1P 1
110,20.0,10.0,20.0,-20.0,10.0,20.0,0,0; 3P 2
110,-20.0,10.0,20.0,-20.0,10.0,0.0,0,0; 5P 3
110,-20.0,10.0,0.0,20.0,10.0,0.0,0,0; 7P 4
110,20.0,10.0,0.0,20.0,10.0,20.0,0,0; 9P 5
102,4,3,5,7,9,0,0; 11P 6
142,0,1,0,11,2,0,0; 13P 7
144,1,1,0,13,0,0; 15P 8
108,1.0,0.0,0.0,-20.0,0,-20.0,-10.0,0.0,1.0,0,0; 17P 9
110,-20.0,10.0,20.0,-20.0,-10.0,20.0,0,0; 19P 10
110,-20.0,-10.0,20.0,-20.0,-10.0,0.0,0,0; 21P 11
110,-20.0,-10.0,0.0,-20.0,10.0,0.0,0,0; 23P 12
110,-20.0,10.0,0.0,-20.0,10.0,20.0,0,0; 25P 13
102,4,19,21,23,25,0,0; 27P 14
142,0,17,0,27,2,0,0; 29P 15
144,17,1,0,29,0,0; 31P 16
108,0.0,1.0,0.0,-10.0,0,20.0,-10.0,0.0,1.0,0,0; 33P 17
110,-20.0,-10.0,20.0,20.0,-10.0,20.0,0,0; 35P 18
110,20.0,-10.0,20.0,20.0,-10.0,0.0,0,0; 37P 19
110,20.0,-10.0,0.0,-20.0,-10.0,0.0,0,0; 39P 20
110,-20.0,-10.0,0.0,-20.0,-10.0,20.0,0,0; 41P 21
102,4,35,37,39,41,0,0; 43P 22
142,0,33,0,43,2,0,0;

[源代码大师]

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