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

121.884431,40.798046
121.868891,40.807701
121.847543,40.835814
121.826538,40.88864
121.830537,40.913172
121.823212,40.931615
121.804184,40.952798
121.791381,40.939458
121.788048,40.926603
121.796723,40.901999
121.770301,40.857505
121.768675,40.849476
121.746702,40.835921
121.713886,40.836173
121.707042,40.832653
121.641093,40.833809
121.593348,40.829467
121.569078,40.836896
121.559763,40.83607
121.550623,40.852181
121.535722,40.857681
121.544831,40.866284
121.522255,40.877383
121.51912,40.893585
121.503326,40.886935
121.488296,40.896774
121.479315,40.894806
121.473906,40.883052
121.457138,40.879356
121.444372,40.883502
121.435607,40.89679
121.379345,40.902824
121.363804,40.908974
121.366855,40.917949
121.335734,40.920634
121.329707,40.930832
121.314662,40.919593
121.314304,40.901051
121.261545,40.901969
121.252724,40.914402
121.25232,40.937511
121.249498,40.92121
121.241189,40.907105
121.229921,40.911025
121.231087,40.922032
121.220169,40.914512
121.212745,40.920558
121.195496,40.922539
121.189621,40.936847
121.176918,40.918995
121.150167,40.897908
121.121374,40.866017
121.090779,40.862237
121.079837,40.856076
121.075619,40.838147
121.078016,40.820569
121.066051,40.818282
121.026561,40.820028
121.009196,40.834792
121.001711,40.825029
120.971391,40.822592
120.955263,40.79343
120.97229,40.788283
120.981645,40.778861
120.959275,40.764907
120.934296,40.76554
120.921843,40.760478
120.928139,40.752602
120.922875,40.740135
120.928055,40.721249
120.937461,40.727161
120.955108,40.721116
120.974389,40.728371
120.996026,40.728347
121.026606,40.713166
121.012185,40.713109
120.995951,40.704549
120.980501,40.708359
120.961952,40.705922
120.937293,40.68963
120.920631,40.685169
120.875242,40.678041
120.83933,40.674531
120.824856,40.660032
120.822873,40.632761
120.801015,40.61558
120.803737,40.606943
120.791538,40.596381
120.781902,40.597315
120.77775,40.588298
120.759867,40.577376
120.753649,40.56763
120.730478,40.554299
120.693138,40.528278
120.670601,40.514721
120.666351,40.493574
120.649849,40.47191
120.630247,40.475343
120.610679,40.470762
120.597227,40.462893
120.58463,40.448866
120.595854,40.423278
120.580892,40.408737
120.539753,40.405684
120.532291,40.369579
120.542989,40.363891
120.567745,40.364947
120.583203,40.374245
120.589276,40.357456
120.573231,40.355243
120.536167,40.333984
120.516802,40.325502
120.49666,40.307389
120.494249,40.272784
120.486238,40.264578
120.495851,40.249029
120.490763,40.235407
120.474694,40.213504
120.444878,40.192622
120.423644,40.187508
120.363386,40.188701
120.326352,40.176979
120.305081,40.172981
120.285436,40.159421
120.28355,40.148389
120.213992,40.126142
120.18451,40.119836
120.177155,40.111628
120.14505,40.098146
120.123251,40.093412
120.104049,40.084403
120.036214,40.071925
120.015514,40.063312
119.998058,40.061427
119.965389,40.04856
119.938424,40.040661
119.914857,40.024625
119.908152,40.010465
119.91507,39.998887
119.901452,39.991208
119.88643,39.994698
119.874527,39.98843
119.85611,39.988168
119.840085,39.982838
END
15
119.225443,41.300494
119.216515,41.26095
119.209137,41.249448
119.182964,41.236556
119.157752,41.210178
119.164978,41.193596
119.15697,41.165452
119.079042,41.135827
119.069479,41.103889
119.041202,41.06718
119.023707,41.060464
118.982121,41.077134
118.949127,41.07576
118.930477,41.05915
118.941119,41.033441
118.986452,41.023496
119.018557,41.003787
119.0092,40.97023
118.973084,40.945963
118.933975,40.956623
118.899202,40.948493
118.882923,40.929839
118.884207,40.891992
118.874971,40.872432
118.854023,40.848657
118.839754,40.823991
118.845958,40.79366
118.881846,40.780977
118.891097,40.755048
118.921706,40.75058
118.945357,40.740009
118.958622,40.720491
118.996493,40.682957
119.03758,40.660456
119.081325,40.658312
119.110198,40.671982
119.128726,40.687511
119.15285,40.695954
119.171324,40.690202
119.176197,40.671663
119.164591,40.661402
119.147475,40.620376
119.153254,40.602232
119.177126,40.59772
119.193433,40.605164
119.212027,40.59931
119.220517,40.581907
119.223941,40.548633
119.245934,40.52731
119.271613,40.519007
119.308633,40.520117
119.37582,40.531266
119.442407,40.539197
119.465109,40.544693
119.522786,40.548909
119.551587,40.545465
119.561125,40.5353
119.542315,40.520556
119.541741,40.507334
119.583563,40.469679
119.592714,40.440716
119.582937,40.371487
119.606961,40.335841
119.643152,40.265993
119.624111,40.233671
119.646001,40.218198
119.66497,40.227189
119.700286,40.203772
119.731521,40.188861
119.742135,40.176859
119.750246,40.148634
119.738506,40.122045
119.742033,40.105986
119.765857,40.087319
119.763738,40.060023
119.775396,40.050655
119.823752,40.049936
119.838179,40.039579
119.830551,40.005237
119.840085,39.982838
END
16
124.354551,39.853589
124.338504,39.851441
124.337047,39.853284
124.338085,39.864252
124.334912,39.870454
124.335239,39.873193
124.34621,39.872414
124.351842,39.872365
124.359502,39.868408
124.361805,39.863359
124.359042,39.856752
124.354551,39.853589
END
17
124.370159,39.846136
124.368695,39.847521
124.369748,39.858944
124.364591,39.871797
124.372037,39.873787
124.387686,39.869076
124.391782,39.864922
124.392256,39.856915
124.388891,39.849629
124.383206,39.846249
124.370159,39.846136
END
18
123.602165,39.772379
123.597122,39.771017
123.594161,39.772398
123.584389,39.772652
123.581137,39.774949
123.583816,39.777914
123.610528,39.789735
123.619119,39.788792
123.622361,39.786271
123.612572,39.782412
123.602165,39.772379
END
19
123.722239,39.738142
123.717501,39.737704
123.715145,39.740228
123.718136,39.745019
123.735964,39.755701
123.740711,39.757055
123.754589,39.750596
123.75694,39.746698
123.754825,39.740763
123.750386,39.740324
123.741825,39.74447
123.732647,39.745192
123.728496,39.743837
123.722239,39.738142
END
20
117.187329,40.085867
117.182767,40.084395
117.164109,40.07931
117.149839,40.071362
117.126345,40.063434
117.11517,40.063622
117.104617,40.068416
117.087629,40.069501
117.061987,40.062604
117.052494,40.05829
117.045377,40.052855
117.040858,40.047204
117.034852,40.043875
117.013197,40.039146
116.998088,40.033724
116.987977,40.034685
116.980241,40.033642
116.970635,40.036402
116.957751,40.049889
116.943132,40.053919
116.934877,40.050075
116.929856,40.048157
116.916608,40.050109
116.898803,40.048453
116.884761,40.04585
116.873485,40.041997
116.862251,40.043042
116.842927,40.048988
116.830387,40.04693
116.807039,40.032623
116.794616,40.032935
116.782722,40.028032
116.773967,40.02335
116.765893,40.016724
116.768629,40.014184
116.775302,40.011566
116.771951,40.002029
116.757465,39.984292
116.7483,39.967984
116.751221,39.955046
116.771638,39.94014
116.776174,39.934289
116.780951,39.921523
116.787317,39.908123
116.783502,39.895671
116.7839,39.890686
116.79826,39.88179
116.807345,39.879485
116.820106,39.878689
116.83103,39.873598
116.83873,39.86612
116.841742,39.858275
116.847029,39.851801
116.852914,39.847921
116.86906,39.842902
116.882501,39.834578
116.894037,39.824744
116.895004,39.833615
116.898878,39.835982
116.903312,39.836036
116.911636,39.831828
116.915493,39.826824
116.917168,39.817599
116.921166,39.805486
116.928143,39.791611
116.938374,39.772292
116.938061,39.770197
116.935129,39.768903
116.928776,39.769652
116.925099,39.768751
116.913971,39.76603
116.905619,39.760483
116.904642,39.759835
116.904144,39.756351
116.906576,39.754389
116.910782,39.750993
116.913849,39.745736
116.911907,39.739922
116.907432,39.735148
116.88839,39.725071
116.885107,39.720948
116.884484,39.716318
116.891571,39.696097
116.893231,39.687302
116.893555,39.68161
END
21
116.893555,39.68161
116.90101,39.699587
116.906071,39.702328
116.922918,39.702322
116.931432,39.699523
116.936627,39.690524
116.936165,39.688637
116.935041,39.686734
116.932848,39.684249
116.935502,39.680945
116.946489,39.65972
116.945063,39.644981
116.949488,39.641764
116.960741,39.641871
116.963014,39.639465
116.964342,39.634258
116.967872,39.630434
117.036287,39.642395
117.045063,39.639868
117.075345,39.628123
117.087002,39.623595
117.113504,39.621892
117.137294,39.625881
117.141159,39.627499
117.150507,39.629886
117.156173,39.635348
117.157647,39.638685
117.154003,39.648975
117.155896,39.654662
117.16096,39.66069
117.162999,39.665515
117.162283,39.685971
117.160379,39.689748
117.15922,39.709933
117.160015,39.715071
117.162012,39.721676
117.171115,39.7363
117.177013,39.739342
117.185184,39.746448
117.197429,39.755541
117.197436,39.763686
117.193237,39.770527
117.184402,39.780419
117.15437,39.804994
117.151943,39.807408
117.151982,39.814863
117.158462,39.816583
117.17206,39.808531
117.185661,39.812854
117.205254,39.823875
117.209376,39.824302
117.216982,39.822147
117.232257,39.827913
117.24856,39.828234
117.251621,39.838233
117.24438,39.847484
117.243671,39.84839
117.237971,39.852702
117.232866,39.853377
117.228296,39.851095
117.22326,39.850856
117.219376,39.847461
117.211871,39.852145
117.205354,39.851832
117.183694,39.858809
117.174347,39.856757
117.168412,39.860365
117.157516,39.859152
117.156509,39.86048
117.157899,39.861693
117.168419,39.867468
117.156396,39.869182
117.15136,39.872602
117.145905,39.870275
117.143585,39.887574
117.139458,39.890813
117.1436,39.894677
117.145593,39.899354
117.143737,39.903849
117.137055,39.905588
117.129547,39.913702
117.129654,39.915998
117.139831,39.918779
117.14112,39.928465
117.146507,39.928037
117.149002,39.930219
117.136009,39.9399
117.132332,39.937662
117.129013,39.938187
117.12696,39.934193
117.117523,39.933278
117.115943,39.934347
117.122726,39.942234
117.122246,39.944501
117.117737,39.948636
117.115112,39.957475
117.139542,39.968429
117.160608,39.974052
117.177125,39.98398
117.175389,39.998815
117.172773,40.020189
117.175197,40.023856
117.176541,40.033408
117.17474,40.045096
117.178032,40.049819
117.184167,40.053234
117.196388,40.054873
117.206798,40.060335
117.209334,40.064562
117.209012,40.070318
117.20227,40.079675
117.18795,40.080952
117.186153,40.082368
117.187329,40.085867
END
22
116.893555,39.68161
116.892964,39.680185
116.890505,39.677143
116.877284,39.675649
116.874227,39.674303
116.873667,39.675795
116.868735,39.672029
116.864526,39.664323
116.863354,39.660685
116.860294,39.658551
116.846444,39.657483
116.841016,39.655104
116.833348,39.646754
116.833609,39.632739
116.829532,39.622684
116.812349,39.612845
116.80325,39.610036
116.797353,39.606408
END
23
122.975966,39.496248
122.964667,39.514065
122.954329,39.516331
122.947844,39.514028
122.943692,39.516762
122.955129,39.53349
122.961021,39.537163
122.965712,39.544724
122.973073,39.548859
122.976027,39.548862
122.979331,39.53629
122.985832,39.536076
122.986755,39.528069
122.991775,39.527622
122.993819,39.532434
122.992689,39.538598
122.992309,39.540664
122.993767,39.544556
123.007064,39.54321
123.023032,39.537979
123.030456,39.52724
123.030761,39.523355
123.000456,39.497675
122.991325,39.493993
122.980406,39.493741
122.975966,39.496248
END
24
121.247225,39.536828
121.254168,39.5422
121.261812,39.554448
121.270731,39.563284
121.278315,39.567064
121.291544,39.569558
121.296481,39.572839
121.299273,39.578831
121.295246,39.585863
121.302944,39.596505
121.310826,39.589078
121.315905,39.586866
121.336758,39.591991
121.337902,39.592126
121.352376,39.593831
121.388411,39.595055
121.408445,39.597408
121.414602,39.599555
121.418906,39.604882
121.423293,39.606549
121.438079,39.606532
121.451256,39.611527
121.457076,39.615268
121.460153,39.622635
121.460846,39.63042
121.458083,39.634501
121.450989,39.638537
121.44789,39.640301
121.455749,39.645445
121.470321,39.641993
121.478256,39.644165
121.480157,39.639159
121.485939,39.632376
121.498422,39.629578
121.511094,39.619002
121.516664,39.621138
121.523531,39.618487
121.525727,39.612797
121.537959,39.595582
121.533288,39.580646
121.535013,39.573743
121.535571,39.571525
121.52643,39.558129
121.518326,39.551155
121.510437,39.547387
121.503669,39.546376
121.497094,39.549489
121.486091,39.540182
121.473738,39.526052
121.467239,39.526189
121.457252,39.523989
121.450828,39.520921
121.441658,39.509577
121.427358,39.502966
121.413167,39.503672
121.405737,39.505625
121.390728,39.515242
121.38239,39.51832
121.37656,39.515031
121.370084,39.514476
121.361378,39.519835
121.347821,39.518945
121.339023,39.516523
121.333233,39.512087
121.335132,39.507311
121.334316,39.504553
121.323618,39.501319
121.314402,39.498527
121.307445,39.493617
121.304095,39.486468
121.296069,39.499617
121.29034,39.504103
121.281976,39.507632
121.272806,39.508406
121