path trajectoire; trajectoire = (157.124,117.170)..(161.585,116.706)..(165.926,116.165)..(170.147,115.573)..(174.249,114.954) ..(178.235,114.327)..(182.110,113.708)..(185.880,113.108)..(189.549,112.539)..(193.121,112.007) ..(196.602,111.518)..(199.996,111.076)..(203.307,110.684)..(206.539,110.345)..(209.695,110.058) ..(212.781,109.826)..(215.798,109.648)..(218.750,109.525)..(221.641,109.456)..(224.474,109.443) ..(227.250,109.484)..(229.974,109.580)..(232.648,109.731)..(235.274,109.937)..(237.855,110.197) ..(240.393,110.512)..(242.891,110.880)..(245.350,111.301)..(247.771,111.774)..(250.156,112.300) ..(252.504,112.876)..(254.816,113.503)..(257.092,114.180)..(259.333,114.907)..(261.538,115.684) ..(263.706,116.509)..(265.838,117.383)..(267.934,118.306)..(269.991,119.277)..(272.011,120.295) ..(273.992,121.361)..(275.934,122.474)..(277.836,123.633)..(279.696,124.839)..(281.514,126.090) ..(283.289,127.387)..(285.019,128.728)..(286.704,130.114)..(288.341,131.542)..(289.931,133.014) ..(291.470,134.526)..(292.957,136.080)..(294.392,137.673)..(295.772,139.304)..(297.097,140.972) ..(298.364,142.676)..(299.572,144.413)..(300.720,146.184)..(301.807,147.985)..(302.830,149.815) ..(303.790,151.672)..(304.684,153.555)..(305.512,155.461)..(306.273,157.389)..(306.965,159.335) ..(307.588,161.300)..(308.141,163.279)..(308.623,165.271)..(309.034,167.274)..(309.373,169.285) ..(309.639,171.303)..(309.833,173.325)..(309.953,175.349)..(310.000,177.372)..(309.974,179.393) ..(309.874,181.409)..(309.700,183.417)..(309.454,185.417)..(309.135,187.405)..(308.743,189.379) ..(308.280,191.338)..(307.746,193.278)..(307.141,195.198)..(306.467,197.096)..(305.725,198.969) ..(304.914,200.815)..(304.037,202.632)..(303.095,204.418)..(302.089,206.171)..(301.019,207.889) ..(299.888,209.571)..(298.697,211.214)..(297.447,212.817)..(296.140,214.378)..(294.777,215.895) ..(293.359,217.367)..(291.890,218.792)..(290.369,220.169)..(288.798,221.495)..(287.180,222.771) ..(285.516,223.994)..(283.808,225.164)..(282.058,226.278)..(280.266,227.336)..(278.436,228.337) ..(276.569,229.280)..(274.667,230.163)..(272.731,230.986)..(270.765,231.748)..(268.769,232.449) ..(266.745,233.087)..(264.697,233.662)..(262.624,234.174)..(260.530,234.622)..(258.416,235.005) ..(256.284,235.325)..(254.135,235.579)..(251.972,235.769)..(249.796,235.893)..(247.609,235.953) ..(245.411,235.947)..(243.205,235.876)..(240.992,235.740)..(238.773,235.538)..(236.548,235.271) ..(234.319,234.939)..(232.086,234.542)..(229.850,234.081)..(227.612,233.555)..(225.371,232.966) ..(223.128,232.314)..(220.884,231.600)..(218.640,230.825)..(216.394,229.989)..(214.149,229.093) ..(211.903,228.139)..(209.657,227.127)..(207.411,226.058)..(205.164,224.933)..(202.917,223.752) ..(200.669,222.517)..(198.420,221.228)..(196.168,219.884)..(193.914,218.487)..(191.656,217.036) ..(189.394,215.530)..(187.127,213.968)..(184.854,212.351)..(182.575,210.674)..(180.290,208.938) ..(177.999,207.141)..(175.702,205.279)..(173.400,203.352)..(171.094,201.356)..(168.786,199.292) ..(166.478,197.157)..(164.170,194.950)..(161.865,192.671)..(159.563,190.318)..(157.267,187.891) ..(154.977,185.390)..(152.693,182.812)..(150.415,180.156)..(148.143,177.418)..(145.876,174.593) ..(143.614,171.674)..(141.357,168.651)..(139.105,165.506)..(136.862,162.217)..(134.639,158.749) ..(132.460,155.050)..(130.383,151.042)..(128.547,146.619)..(127.261,141.720)..(126.957,136.586) ..(127.639,131.791)..(128.834,127.584)..(130.188,123.858)..(131.552,120.470)..(132.868,117.321) ..(134.113,114.349)..(135.274,111.515)..(136.342,108.795)..(137.311,106.174)..(138.173,103.643) ..(138.919,101.201)..(139.540,98.848)..(140.027,96.592)..(140.368,94.445)..(140.554,92.423) ..(140.577,90.549)..(140.437,88.853)..(140.136,87.365)..(139.690,86.121)..(139.123,85.150) ..(138.472,84.476)..(137.778,84.109)..(137.082,84.047)..(136.423,84.277)..(135.834,84.773) ..(135.334,85.510)..(134.937,86.456)..(134.650,87.586)..(134.473,88.875)..(134.402,90.301) ..(134.433,91.847)..(134.558,93.500)..(134.771,95.248)..(135.063,97.084)..(135.428,99.001) ..(135.860,100.995)..(136.351,103.065)..(136.895,105.211)..(137.487,107.433)..(138.122,109.737) ..(138.794,112.129)..(139.498,114.620)..(140.225,117.225)..(140.966,119.968)..(141.705,122.883) ..(142.411,126.020)..(143.019,129.458)..(143.384,133.300)..(143.188,137.606)..(141.992,142.134) ..(139.782,146.308)..(137.023,149.878)..(134.060,152.951)..(131.034,155.667)..(127.995,158.125) ..(124.958,160.385)..(121.928,162.483)..(118.904,164.441)..(115.885,166.273)..(112.872,167.987) ..(109.864,169.587)..(106.864,171.073)..(103.875,172.447)..(100.903,173.710)..(97.953,174.863) ..(95.031,175.911)..(92.143,176.858)..(89.292,177.710)..(86.481,178.475)..(83.712,179.157) ..(80.983,179.764)..(78.293,180.300)..(75.641,180.769)..(73.026,181.174)..(70.444,181.516) ..(67.896,181.796)..(65.379,182.013)..(62.894,182.168)..(60.441,182.260)..(58.020,182.288) ..(55.631,182.249)..(53.277,182.144)..(50.958,181.971)..(48.677,181.729)..(46.436,181.417) ..(44.237,181.033)..(42.083,180.578)..(39.977,180.052)..(37.921,179.453)..(35.920,178.782) ..(33.975,178.040)..(32.090,177.227)..(30.268,176.344)..(28.512,175.393)..(26.825,174.374) ..(25.208,173.290)..(23.666,172.143)..(22.199,170.934)..(20.811,169.666)..(19.502,168.340) ..(18.274,166.961)..(17.128,165.530)..(16.065,164.051)..(15.085,162.527)..(14.190,160.962) ..(13.381,159.360)..(12.657,157.724)..(12.020,156.058)..(11.470,154.366)..(11.007,152.652) ..(10.632,150.919)..(10.343,149.172)..(10.142,147.413)..(10.028,145.647)..(10.000,143.877) ..(10.058,142.106)..(10.202,140.339)..(10.431,138.578)..(10.744,136.827)..(11.142,135.089) ..(11.622,133.367)..(12.186,131.664)..(12.832,129.983)..(13.560,128.328)..(14.368,126.701) ..(15.258,125.106)..(16.227,123.545)..(17.276,122.021)..(18.403,120.539)..(19.607,119.100) ..(20.887,117.707)..(22.243,116.365)..(23.672,115.075)..(25.173,113.840)..(26.745,112.664) ..(28.385,111.547)..(30.093,110.494)..(31.866,109.506)..(33.703,108.584)..(35.601,107.732) ..(37.560,106.950)..(39.577,106.240)..(41.653,105.603)..(43.784,105.041)..(45.972,104.556) ..(48.215,104.148)..(50.515,103.819)..(52.872,103.570)..(55.289,103.404)..(57.768,103.321) ..(60.315,103.323)..(62.933,103.411)..(65.629,103.584)..(68.407,103.843)..(71.273,104.189) ..(74.232,104.621)..(77.291,105.140)..(80.457,105.745)..(83.735,106.438)..(87.133,107.215) ..(90.658,108.074)..(94.316,109.008)..(98.113,110.009)..(102.054,111.061)..(106.142,112.143) ..(110.380,113.226)..(114.764,114.277)..(119.287,115.254)..(123.931,116.116)..(128.672,116.826) ..(133.476,117.353)..(138.303,117.681)..(143.114,117.810)..(147.872,117.752)..(152.548,117.529) ..(157.124,117.170); b := 50; d := 350; 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