path trajectoire; trajectoire = (160.000,160.000)..(162.432,161.908)..(164.897,163.773)..(167.424,165.547)..(170.022,167.170) ..(172.671,168.584)..(175.324,169.762)..(177.930,170.719)..(180.467,171.496)..(182.936,172.135) ..(185.355,172.664)..(187.742,173.094)..(190.115,173.428)..(192.484,173.663)..(194.854,173.792) ..(197.225,173.808)..(199.594,173.711)..(201.957,173.502)..(204.315,173.187)..(206.673,172.775) ..(209.044,172.269)..(211.446,171.668)..(213.905,170.957)..(216.444,170.104)..(219.070,169.055) ..(221.756,167.749)..(224.431,166.161)..(227.026,164.333)..(229.517,162.342)..(231.914,160.264) ..(234.246,158.155)..(236.544,156.057)..(238.831,154.007)..(241.122,152.035)..(243.424,150.171) ..(245.731,148.435)..(248.030,146.839)..(250.308,145.384)..(252.552,144.061)..(254.759,142.857) ..(256.928,141.758)..(259.065,140.755)..(261.176,139.840)..(263.266,139.009)..(265.342,138.261) ..(267.407,137.595)..(269.465,137.014)..(271.516,136.519)..(273.561,136.114)..(275.597,135.802) ..(277.622,135.583)..(279.634,135.462)..(281.628,135.439)..(283.600,135.516)..(285.547,135.694) ..(287.461,135.973)..(289.339,136.355)..(291.175,136.840)..(292.962,137.426)..(294.694,138.114) ..(296.366,138.902)..(297.970,139.788)..(299.500,140.769)..(300.950,141.843)..(302.313,143.006) ..(303.583,144.254)..(304.754,145.581)..(305.821,146.983)..(306.776,148.453)..(307.616,149.983) ..(308.335,151.568)..(308.930,153.198)..(309.396,154.866)..(309.731,156.561)..(309.933,158.276) ..(310.000,160.000)..(309.933,161.724)..(309.731,163.439)..(309.396,165.134)..(308.930,166.802) ..(308.335,168.432)..(307.616,170.017)..(306.776,171.547)..(305.821,173.017)..(304.754,174.419) ..(303.583,175.746)..(302.313,176.994)..(300.950,178.157)..(299.500,179.231)..(297.970,180.212) ..(296.366,181.098)..(294.694,181.886)..(292.962,182.574)..(291.175,183.160)..(289.339,183.645) ..(287.461,184.027)..(285.547,184.306)..(283.600,184.484)..(281.628,184.561)..(279.634,184.538) ..(277.622,184.417)..(275.597,184.198)..(273.561,183.886)..(271.516,183.481)..(269.465,182.986) ..(267.407,182.405)..(265.342,181.739)..(263.266,180.991)..(261.176,180.160)..(259.065,179.245) ..(256.928,178.242)..(254.759,177.143)..(252.552,175.939)..(250.308,174.616)..(248.030,173.161) ..(245.731,171.565)..(243.424,169.829)..(241.122,167.965)..(238.831,165.993)..(236.544,163.943) ..(234.246,161.845)..(231.914,159.736)..(229.517,157.658)..(227.026,155.667)..(224.431,153.839) ..(221.756,152.251)..(219.070,150.945)..(216.444,149.896)..(213.905,149.043)..(211.446,148.332) ..(209.044,147.731)..(206.673,147.225)..(204.315,146.813)..(201.957,146.498)..(199.594,146.289) ..(197.225,146.192)..(194.854,146.208)..(192.484,146.337)..(190.115,146.572)..(187.742,146.906) ..(185.355,147.336)..(182.936,147.865)..(180.467,148.504)..(177.930,149.281)..(175.324,150.238) ..(172.671,151.416)..(170.022,152.830)..(167.424,154.453)..(164.897,156.227)..(162.432,158.092) ..(160.000,160.000)..(157.568,161.908)..(155.103,163.773)..(152.576,165.547)..(149.978,167.170) ..(147.329,168.584)..(144.676,169.762)..(142.070,170.719)..(139.533,171.496)..(137.064,172.135) ..(134.645,172.664)..(132.258,173.094)..(129.885,173.428)..(127.516,173.663)..(125.146,173.792) ..(122.775,173.808)..(120.406,173.711)..(118.043,173.502)..(115.685,173.187)..(113.327,172.775) ..(110.956,172.269)..(108.554,171.668)..(106.095,170.957)..(103.556,170.104)..(100.930,169.055) ..(98.244,167.749)..(95.569,166.161)..(92.974,164.333)..(90.483,162.342)..(88.086,160.264) ..(85.754,158.155)..(83.456,156.057)..(81.169,154.007)..(78.878,152.035)..(76.576,150.171) ..(74.269,148.435)..(71.970,146.839)..(69.692,145.384)..(67.448,144.061)..(65.241,142.857) ..(63.072,141.758)..(60.935,140.755)..(58.824,139.840)..(56.734,139.009)..(54.658,138.261) ..(52.593,137.595)..(50.535,137.014)..(48.484,136.519)..(46.439,136.114)..(44.403,135.802) ..(42.378,135.583)..(40.366,135.462)..(38.372,135.439)..(36.400,135.516)..(34.453,135.694) ..(32.539,135.973)..(30.661,136.355)..(28.825,136.840)..(27.038,137.426)..(25.306,138.114) ..(23.634,138.902)..(22.030,139.788)..(20.500,140.769)..(19.050,141.843)..(17.687,143.006) ..(16.417,144.254)..(15.246,145.581)..(14.179,146.983)..(13.224,148.453)..(12.384,149.983) ..(11.665,151.568)..(11.070,153.198)..(10.604,154.866)..(10.269,156.561)..(10.067,158.276) ..(10.000,160.000)..(10.067,161.724)..(10.269,163.439)..(10.604,165.134)..(11.070,166.802) ..(11.665,168.432)..(12.384,170.017)..(13.224,171.547)..(14.179,173.017)..(15.246,174.419) ..(16.417,175.746)..(17.687,176.994)..(19.050,178.157)..(20.500,179.231)..(22.030,180.212) ..(23.634,181.098)..(25.306,181.886)..(27.038,182.574)..(28.825,183.160)..(30.661,183.645) ..(32.539,184.027)..(34.453,184.306)..(36.400,184.484)..(38.372,184.561)..(40.366,184.538) ..(42.378,184.417)..(44.403,184.198)..(46.439,183.886)..(48.484,183.481)..(50.535,182.986) ..(52.593,182.405)..(54.658,181.739)..(56.734,180.991)..(58.824,180.160)..(60.935,179.245) ..(63.072,178.242)..(65.241,177.143)..(67.448,175.939)..(69.692,174.616)..(71.970,173.161) ..(74.269,171.565)..(76.576,169.829)..(78.878,167.965)..(81.169,165.993)..(83.456,163.943) ..(85.754,161.845)..(88.086,159.736)..(90.483,157.658)..(92.974,155.667)..(95.569,153.839) ..(98.244,152.251)..(100.930,150.945)..(103.556,149.896)..(106.095,149.043)..(108.554,148.332) ..(110.956,147.731)..(113.327,147.225)..(115.685,146.813)..(118.043,146.498)..(120.406,146.289) ..(122.775,146.192)..(125.146,146.208)..(127.516,146.337)..(129.885,146.572)..(132.258,146.906) ..(134.645,147.336)..(137.064,147.865)..(139.533,148.504)..(142.070,149.281)..(144.676,150.238) ..(147.329,151.416)..(149.978,152.830)..(152.576,154.453)..(155.103,156.227)..(157.568,158.092) ..(160.000,160.000); b := 20; d := 300; 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