可以参考我以前的帖子,看几个IGES实际文件,并对应分析一下
这是proe生成的只有两个点的IGES文件
显示问题格式没有对齐
PTC IGES file: prt0001.igs S 1
1H,,1H;,7HPRT0001,11Hprt0001.igs, G 1
49HPro/ENGINEER by Parametric Technology Corporation,7H2003370,32,38,7, G 2
38,15,7HPRT0001,1.,1,4HINCH,32768,0.5,13H071107.172240,0.0363072, G 3
363.086,4HOhio,7HUnknown,10,0,13H071107.172240; G 4
314 1 1 1 0 0 0 001000200D 1
314 0 2 1 0 COLOR 1D 2
314 2 1 1 0 0 0 001000200D 3
314 0 2 1 0 COLOR 2D 4
314 3 1 1 0 0 0 001000200D 5
314 0 8 1 0 COLOR 3D 6
406 4 1 1 0 0 0 001000000D 7
406 0 0 1 15 PROP 1D 8
116 5 1 1 0 0 0 000000000D 9
116 0 -1 1 0 POINT 1D 10
406 6 1 1 0 0 0 001000000D 11
406 0 0 1 15 PROP 2D 12
116 7 1 1 0 0 0 000000000D 13
116 0 -1 1 0 POINT 2D 14
406 8 1 1 0 0 0 001000000D 15
406 0 0 1 15 PROP 3D 16
402 9 1 1 0 0 0 000000300D 17
402 0 0 1 7 LAYER 1D 18
314,5.803921568627D1,0D0,1.607843137255D1; 1P 1
314,6.666666666667D1,4.627450980392D1,2.196078431373D1; 3P 2
314,8.784D1,9.49D1,1D2; 5P 3
406,1,4HPNT0; 7P 4
116,0D0,2.5433D2,1.5253D2,0,0,1,7; 9P 5
406,1,4HPNT1; 11P 6
116,-2.5433D2,0D0,1.0289D2,0,0,1,11; 13P 7
406,1,20H04___PRT_ALL_DTM_PNT; 15P 8
402,2,9,13,0,1,15; 17P 9
S 1G 4D 18P 9 T 1
这是UG NX4生成的只有两个点的IGES文件
S 1
1H,,1H;,66HF:/My Documents/Visual Studio Projects/ex_iges5/test/twopointG 1
s.prt,66HF:/My Documents/Visual Studio Projects/ex_iges5/test/twopoints.G 2
igs,7HNX V4.0,16HUGS NX IGES V4.0,32,38,16,38,16,66HF:/My Documents/VisuG 3
al Studio Projects/ex_iges5/test/twopoints.prt,1.0,2,2HMM,3,0.0,15H20071G 4
111.123218,1.0E-005,10000.0,,,11,0,15H20011111.123200; G 5
314 1 1 1 0 0 200D 1
314 2 4 1 0 0D 2
116 2 1 1 0 0 0D 3
116 2 -1 1 0 0D 4
116 3 1 1 0 0 0D 5
116 2 -1 1 0 0D 6
108 4 1 1 0 0 10100D 7
108 2 0 1 0 0D 8
108 5 1 1 0 0 10100D 9
108 2 0 1 0 0D 10
108 6 1 1 0 0 10100D 11
108 2 0 1 0 0D 12
108 7 1 1 0 0 10100D 13
108 2 0 1 0 0D 14
406 8 1 1 0 0 10000D 15
406 2 0 1 15 0D 16
410 9 1 256 0 0 100D 17
410 2 0 1 0 TOP 0D 18
124 10 1 1 0 0 0D 19
124 2 0 1 0 0D 20
108 11 1 1 0 0 10100D 21
108 2 0 1 0 0D 22
108 12 1 1 0 0 10100D 23
108 2 0 1 0 0D 24
108 13 1 1 0 0 10100D 25
108 2 0 2 0 0D 26
108 15 1 1 0 0 10100D 27
108 2 0 2 0 0D 28
406 17 1 1 0 0 10000D 29
406 2 0 1 15 0D 30
410 18 1 256 0 19 100D 31
410 2 0 1 0 &n