path trajectoire; trajectoire = (236.971,160.000)..(237.223,164.755)..(237.967,169.421)..(239.170,173.916)..(240.784,178.171) ..(242.748,182.138)..(245.001,185.782)..(247.482,189.085)..(250.133,192.044)..(252.907,194.661) ..(255.762,196.947)..(258.662,198.915)..(261.581,200.581)..(264.495,201.960)..(267.386,203.068) ..(270.240,203.919)..(273.044,204.528)..(275.791,204.906)..(278.472,205.065)..(281.082,205.015) ..(283.615,204.764)..(286.068,204.319)..(288.438,203.689)..(290.720,202.876)..(292.912,201.886) ..(295.010,200.722)..(297.011,199.386)..(298.908,197.877)..(300.695,196.198)..(302.363,194.347) ..(303.902,192.327)..(305.302,190.136)..(306.551,187.778)..(307.634,185.253)..(308.538,182.564) ..(309.246,179.715)..(309.739,176.710)..(309.998,173.557)..(310.000,170.262)..(309.722,166.840) ..(309.136,163.304)..(308.216,159.676)..(306.933,155.982)..(305.257,152.256)..(303.160,148.539) ..(300.621,144.884)..(297.622,141.350)..(294.160,138.008)..(290.244,134.932)..(285.902,132.194) ..(281.182,129.864)..(276.147,127.996)..(270.871,126.624)..(265.434,125.765)..(259.911,125.412) ..(254.372,125.543)..(248.871,126.121)..(243.453,127.105)..(238.147,128.450)..(232.970,130.109) ..(227.933,132.041)..(223.034,134.207)..(218.269,136.573)..(213.624,139.109)..(209.084,141.789) ..(204.629,144.591)..(200.234,147.496)..(195.866,150.488)..(191.490,153.552)..(187.056,156.671) ..(182.499,159.822)..(177.732,162.970)..(172.630,166.044)..(167.025,168.885)..(160.750,171.147) ..(153.889,172.241)..(147.068,171.791)..(140.912,170.171)..(135.508,167.968)..(130.691,165.523) ..(126.295,162.992)..(122.199,160.441)..(118.318,157.902)..(114.592,155.390)..(110.976,152.915) ..(107.436,150.485)..(103.946,148.106)..(100.483,145.786)..(97.030,143.533)..(93.572,141.358) ..(90.100,139.271)..(86.604,137.286)..(83.079,135.418)..(79.522,133.682)..(75.934,132.094) ..(72.320,130.672)..(68.686,129.431)..(65.045,128.386)..(61.410,127.551)..(57.799,126.934) ..(54.231,126.542)..(50.727,126.377)..(47.306,126.437)..(43.990,126.713)..(40.795,127.197) ..(37.738,127.875)..(34.831,128.730)..(32.085,129.747)..(29.507,130.907)..(27.100,132.192) ..(24.867,133.587)..(22.808,135.075)..(20.919,136.641)..(19.199,138.274)..(17.643,139.960) ..(16.247,141.690)..(15.006,143.456)..(13.915,145.249)..(12.968,147.063)..(12.160,148.892) ..(11.487,150.733)..(10.944,152.581)..(10.528,154.433)..(10.233,156.288)..(10.058,158.144) ..(10.000,160.000)..(10.058,161.856)..(10.233,163.712)..(10.528,165.567)..(10.944,167.419) ..(11.487,169.267)..(12.160,171.108)..(12.968,172.937)..(13.915,174.751)..(15.006,176.544) ..(16.247,178.310)..(17.643,180.040)..(19.199,181.726)..(20.919,183.359)..(22.808,184.925) ..(24.867,186.413)..(27.100,187.808)..(29.507,189.093)..(32.085,190.253)..(34.831,191.270) ..(37.738,192.125)..(40.795,192.803)..(43.990,193.287)..(47.306,193.563)..(50.727,193.623) ..(54.231,193.458)..(57.799,193.066)..(61.410,192.449)..(65.045,191.614)..(68.686,190.569) ..(72.320,189.328)..(75.934,187.906)..(79.522,186.318)..(83.079,184.582)..(86.604,182.714) ..(90.100,180.729)..(93.572,178.642)..(97.030,176.467)..(100.483,174.214)..(103.946,171.894) ..(107.436,169.515)..(110.976,167.085)..(114.592,164.610)..(118.318,162.098)..(122.199,159.559) ..(126.295,157.008)..(130.691,154.477)..(135.508,152.032)..(140.912,149.829)..(147.068,148.209) ..(153.889,147.759)..(160.750,148.853)..(167.025,151.115)..(172.630,153.956)..(177.732,157.030) ..(182.499,160.178)..(187.056,163.329)..(191.490,166.448)..(195.866,169.512)..(200.234,172.504) ..(204.629,175.409)..(209.084,178.211)..(213.624,180.891)..(218.269,183.427)..(223.034,185.793) ..(227.933,187.959)..(232.970,189.891)..(238.147,191.550)..(243.453,192.895)..(248.871,193.879) ..(254.372,194.457)..(259.911,194.588)..(265.434,194.235)..(270.871,193.376)..(276.147,192.004) ..(281.182,190.136)..(285.902,187.806)..(290.244,185.068)..(294.160,181.992)..(297.622,178.650) ..(300.621,175.116)..(303.160,171.461)..(305.257,167.744)..(306.933,164.018)..(308.216,160.324) ..(309.136,156.696)..(309.722,153.160)..(310.000,149.738)..(309.998,146.443)..(309.739,143.290) ..(309.246,140.285)..(308.538,137.436)..(307.634,134.747)..(306.551,132.222)..(305.302,129.864) ..(303.902,127.673)..(302.363,125.653)..(300.695,123.802)..(298.908,122.123)..(297.011,120.614) ..(295.010,119.278)..(292.912,118.114)..(290.720,117.124)..(288.438,116.311)..(286.068,115.681) ..(283.615,115.236)..(281.082,114.985)..(278.472,114.935)..(275.791,115.094)..(273.044,115.472) ..(270.240,116.081)..(267.386,116.932)..(264.495,118.040)..(261.581,119.419)..(258.662,121.085) ..(255.762,123.053)..(252.907,125.339)..(250.133,127.956)..(247.482,130.915)..(245.001,134.218) ..(242.748,137.862)..(240.784,141.829)..(239.170,146.084)..(237.967,150.579)..(237.223,155.245) ..(236.971,160.000); 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