path trajectoire; trajectoire = (160.000,224.911)..(161.116,224.851)..(162.237,224.670)..(163.366,224.366)..(164.506,223.936) ..(165.661,223.375)..(166.834,222.677)..(168.027,221.835)..(169.242,220.838)..(170.480,219.676) ..(171.741,218.337)..(173.023,216.805)..(174.323,215.064)..(175.634,213.093)..(176.949,210.868) ..(178.254,208.363)..(179.530,205.545)..(180.748,202.377)..(181.868,198.817)..(182.829,194.815) ..(183.540,190.324)..(183.869,185.298)..(183.620,179.726)..(182.530,173.673)..(180.292,167.360) ..(176.695,161.229)..(171.822,155.831)..(166.074,151.540)..(159.920,148.389)..(153.682,146.212) ..(147.527,144.807)..(141.528,144.000)..(135.710,143.657)..(130.073,143.676)..(124.605,143.978) ..(119.292,144.503)..(114.115,145.201)..(109.055,146.029)..(104.092,146.952)..(99.209,147.935) ..(94.388,148.948)..(89.612,149.959)..(84.868,150.935)..(80.146,151.843)..(75.437,152.647) ..(70.741,153.309)..(66.064,153.792)..(61.423,154.058)..(56.842,154.076)..(52.357,153.819) ..(48.009,153.277)..(43.843,152.452)..(39.900,151.362)..(36.213,150.037)..(32.804,148.514) ..(29.683,146.835)..(26.851,145.040)..(24.300,143.163)..(22.017,141.236)..(19.986,139.281) ..(18.190,137.319)..(16.612,135.365)..(15.236,133.428)..(14.048,131.516)..(13.033,129.636) ..(12.181,127.791)..(11.481,125.983)..(10.925,124.214)..(10.504,122.484)..(10.212,120.793) ..(10.046,119.142)..(10.000,117.529)..(10.073,115.956)..(10.262,114.420)..(10.567,112.924) ..(10.988,111.468)..(11.525,110.054)..(12.177,108.683)..(12.946,107.357)..(13.831,106.077) ..(14.832,104.845)..(15.952,103.663)..(17.193,102.532)..(18.557,101.455)..(20.049,100.436) ..(21.673,99.478)..(23.434,98.587)..(25.339,97.771)..(27.392,97.037)..(29.602,96.398) ..(31.974,95.865)..(34.514,95.456)..(37.227,95.189)..(40.116,95.089)..(43.180,95.182) ..(46.412,95.498)..(49.800,96.070)..(53.322,96.929)..(56.949,98.103)..(60.641,99.615) ..(64.353,101.475)..(68.038,103.677)..(71.654,106.203)..(75.167,109.024)..(78.555,112.102) ..(81.809,115.396)..(84.931,118.868)..(87.934,122.485)..(90.836,126.217)..(93.660,130.043) ..(96.430,133.945)..(99.176,137.912)..(101.926,141.934)..(104.712,146.006)..(107.567,150.122) ..(110.530,154.279)..(113.644,158.472)..(116.957,162.692)..(120.531,166.925)..(124.439,171.143) ..(128.773,175.297)..(133.644,179.298)..(139.173,182.988)..(145.460,186.099)..(152.487,188.245) ..(160.000,189.021)..(167.513,188.245)..(174.540,186.099)..(180.827,182.988)..(186.356,179.298) ..(191.227,175.297)..(195.561,171.143)..(199.469,166.925)..(203.043,162.692)..(206.356,158.472) ..(209.470,154.279)..(212.433,150.122)..(215.288,146.006)..(218.074,141.934)..(220.824,137.912) ..(223.570,133.945)..(226.340,130.043)..(229.164,126.217)..(232.066,122.485)..(235.069,118.868) ..(238.191,115.396)..(241.445,112.102)..(244.833,109.024)..(248.346,106.203)..(251.962,103.677) ..(255.647,101.475)..(259.359,99.615)..(263.051,98.103)..(266.678,96.929)..(270.200,96.070) ..(273.588,95.498)..(276.820,95.182)..(279.884,95.089)..(282.773,95.189)..(285.486,95.456) ..(288.026,95.865)..(290.398,96.398)..(292.608,97.037)..(294.661,97.771)..(296.566,98.587) ..(298.327,99.478)..(299.951,100.436)..(301.443,101.455)..(302.807,102.532)..(304.048,103.663) ..(305.168,104.845)..(306.169,106.077)..(307.054,107.357)..(307.823,108.683)..(308.475,110.054) ..(309.012,111.468)..(309.433,112.924)..(309.738,114.420)..(309.927,115.956)..(310.000,117.529) ..(309.954,119.142)..(309.788,120.793)..(309.496,122.484)..(309.075,124.214)..(308.519,125.983) ..(307.819,127.791)..(306.967,129.636)..(305.952,131.516)..(304.764,133.428)..(303.388,135.365) ..(301.810,137.319)..(300.014,139.281)..(297.983,141.236)..(295.700,143.163)..(293.149,145.040) ..(290.317,146.835)..(287.196,148.514)..(283.787,150.037)..(280.100,151.362)..(276.157,152.452) ..(271.991,153.277)..(267.643,153.819)..(263.158,154.076)..(258.577,154.058)..(253.936,153.792) ..(249.259,153.309)..(244.563,152.647)..(239.854,151.843)..(235.132,150.935)..(230.388,149.959) ..(225.612,148.948)..(220.791,147.935)..(215.908,146.952)..(210.945,146.029)..(205.885,145.201) ..(200.708,144.503)..(195.395,143.978)..(189.927,143.676)..(184.290,143.657)..(178.472,144.000) ..(172.473,144.807)..(166.318,146.212)..(160.080,148.389)..(153.926,151.540)..(148.178,155.831) ..(143.305,161.229)..(139.708,167.360)..(137.470,173.673)..(136.380,179.726)..(136.131,185.298) ..(136.460,190.324)..(137.171,194.815)..(138.132,198.817)..(139.252,202.377)..(140.470,205.545) ..(141.746,208.363)..(143.051,210.868)..(144.366,213.093)..(145.677,215.064)..(146.977,216.805) ..(148.259,218.337)..(149.520,219.676)..(150.758,220.838)..(151.973,221.835)..(153.166,222.677) ..(154.339,223.375)..(155.494,223.936)..(156.634,224.366)..(157.763,224.670)..(158.884,224.851) ..(160.000,224.911); b := 50; d := 250; beginfig(1); draw trajectoire withpen pencircle scaled 1pt withcolor 0.4white; for i:= b step b until d: draw (point i of trajectoire) withpen pencircle scaled 5pt withcolor blue; endfor; draw (point 0 of trajectoire) withpen pencircle scaled 5pt withcolor red; endfig; end