china_arc.gen.txt

道格拉斯数据压缩算法。 算法特征：1.在不扰乱拓扑关系的前提下

131.228671,43.87711
131.205386,43.790494
131.21875,43.744857
131.207854,43.723857
131.227767,43.644745
131.210385,43.622376
131.229185,43.59837
131.184751,43.556897
131.201262,43.518231
131.244429,43.50155
131.301535,43.45973
END
3
131.301535,43.45973
131.196899,43.413193
131.135471,43.41677
131.054315,43.476948
131.000193,43.483669
130.922846,43.430843
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128.410883,44.481003
128.39849,44.514432
128.36811,44.502026
128.353063,44.481029
128.28083,44.436748
128.229267,44.415525
128.206517,44.350715
128.177981,44.332025
128.112596,44.358001
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128.07129,44.31273
128.100646,44.283287
128.105272,44.256255
128.086534,44.223367
128.115667,44.202542
128.112053,44.174374
128.090956,44.161316
128.085482,44.139316
128.111279,44.110602
128.098252,44.096299
127.997819,44.075287
127.938908,44.043573
127.892825,44.041735
127.840783,44.059531
127.799522,44.045744
127.773893,44.054029
127.756771,44.076056
127.742401,44.114476
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127.719931,44.175013
127.690898,44.144154
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127.613041,44.210822
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127.639404,44.259874
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127.561481,44.564601
127.531818,44.575128
127.469279,44.605226
127.413751,44.609459
127.390243,44.604199
127.310715,44.615009
127.292214,44.612692
127.283359,44.584598
127.250283,44.585025
127.189407,44.624113
127.159971,44.598374
127.109804,44.59071
127.079508,44.550341
127.062619,44.56662
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127.078801,44.667932
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127.030373,44.767012
127.043182,44.859634
127.097584,44.915582
127.041943,44.971238
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126.989328,45.064469
126.96956,45.078408
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125.369839,45.394247
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124.587318,45.444473
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124.391242,45.439222
124.350292,45.49311
124.36572,45.513226
124.350539,45.538851
124.279713,45.536195
124.255459,45.586973
124.22759,45.588017
124.216387,45.626032
124.158255,45.611414
124.132249,45.635672
124.123152,45.683517
124.049661,45.713095
124.071042,45.732028
124.017131,45.747303
124.004405,45.769953
124.038015,45.785192
124.036174,45.830424
124.058204,45.839151
124.050411,45.885359
123.995192,45.898862
123.961206,45.942825
123.977182,45.977531
124.007955,45.993735
123.993088,46.008805
124.033251,46.026423
123.993095,46.071252
124.002295,46.158419
123.964781,46.165159
123.946498,46.237023
123.955617,46.282733
123.90835,46.260465
123.896539,46.297369
123.823485,46.295811
123.781025,46.266376
123.672466,46.254581
123.560018,46.230687
123.497183,46.253425
123.36466,46.22847
123.252364,46.266266
123.211712,46.265886
123.173409,46.244553
END
4
123.173409,46.244553
123.10973,46.197017
123.08659,46.128512
123.004867,46.086813
122.79313,46.067977
122.819301,45.878602
122.796677,45.782207
122.699295,45.692576
122.670621,45.727867
122.535443,45.784438
122.491789,45.853737
122.379585,45.913336
122.246208,45.799711
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121.842847,46.024898
121.777191,45.997447
121.81679,45.930374
121.805255,45.863289
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121.740077,45.686208
121.872953,45.721666
121.962577,45.698869
121.994771,45.65097
121.965363,45.569716
122.022048,45.490304
122.118365,45.465758
122.175343,45.412227
122.12948,45.352617
122.143232,45.302728
122.234847,45.245083
122.222427,45.201448
122.126216,45.149296
122.092766,44.946266
122.040653,44.896754
122.091307,44.854348
122.101737,44.787953
122.123598,44.720973
122.087535,44.688088
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122.199986,44.551667
122.224605,44.477218
122.303818,44.440449
122.280332,44.278239
122.324399,44.236682
122.512293,44.231763
122.677941,44.305504
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122.950557,44.436641
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123.129819,44.505713
123.144908,44.353512
123.234144,44.310265
123.299729,44.187331
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123.32352,44.041446
123.439982,43.905166
123.466002,43.737656
123.532455,43.633319
123.506331,43.582337
123.42125,43.601737
123.418261,43.54504
123.321754,43.546075
123.325311,43.483468
123.433639,43.415976
123.475246,43.462435
123.58744,43.368976
123.700646,43.372393
END
5
84.196663,46.997912
84.372258,46.997028
84.419873,47.010669
84.461166,46.987042
84.506455,46.977597
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87.902905,49.007271
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90.875365,45.283985
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91.021855,45.204954
91.157707,45.193933
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95.888287,43.287401
95.916241,43.233224
96.005499,43.18255
96.073717,43.125174
96.154172,43.010316
96.32422,42.882266
96.366381,42.716338
END
6
96.366381,42.716338
96.552414,42.723551
96.674494,42.742254
96.859566,42.728659
96.932612,42.711989
97.006687,42.741114
97.09387,42.763517
97.181859,42.771856
END
7
97.181859,42.771856
97.518893,42.728251
98.019661,42.68319
98.247703,42.637692
98.339708,42.639761