path trajectoire; trajectoire = (160.000,160.000)..(161.983,162.034)..(163.968,164.065)..(165.957,166.088)..(167.953,168.100) ..(169.955,170.096)..(171.968,172.074)..(173.991,174.029)..(176.026,175.958)..(178.075,177.857) ..(180.138,179.721)..(182.214,181.548)..(184.306,183.334)..(186.411,185.074)..(188.530,186.767) ..(190.662,188.409)..(192.805,189.996)..(194.957,191.527)..(197.118,192.998)..(199.285,194.409) ..(201.455,195.758)..(203.627,197.043)..(205.798,198.265)..(207.965,199.422)..(210.126,200.514) ..(212.279,201.543)..(214.422,202.509)..(216.553,203.412)..(218.670,204.255)..(220.771,205.038) ..(222.855,205.763)..(224.922,206.432)..(226.970,207.046)..(228.999,207.607)..(231.007,208.117) ..(232.996,208.576)..(234.965,208.988)..(236.913,209.352)..(238.841,209.670)..(240.750,209.944) ..(242.638,210.174)..(244.507,210.361)..(246.357,210.507)..(248.187,210.611)..(249.999,210.675) ..(251.792,210.699)..(253.567,210.683)..(255.323,210.628)..(257.061,210.534)..(258.782,210.402) ..(260.483,210.231)..(262.167,210.022)..(263.832,209.774)..(265.479,209.489)..(267.107,209.166) ..(268.715,208.805)..(270.304,208.406)..(271.873,207.969)..(273.422,207.495)..(274.950,206.984) ..(276.455,206.435)..(277.939,205.849)..(279.400,205.226)..(280.837,204.566)..(282.249,203.870) ..(283.637,203.137)..(284.998,202.369)..(286.332,201.565)..(287.639,200.726)..(288.918,199.852) ..(290.167,198.944)..(291.385,198.003)..(292.573,197.028)..(293.728,196.021)..(294.851,194.982) ..(295.939,193.912)..(296.993,192.812)..(298.011,191.682)..(298.993,190.524)..(299.938,189.337) ..(300.844,188.124)..(301.712,186.886)..(302.540,185.622)..(303.328,184.335)..(304.075,183.025) ..(304.780,181.693)..(305.442,180.341)..(306.062,178.970)..(306.638,177.582)..(307.170,176.176) ..(307.657,174.755)..(308.099,173.320)..(308.496,171.872)..(308.847,170.413)..(309.152,168.944) ..(309.411,167.467)..(309.623,165.982)..(309.788,164.492)..(309.906,162.997)..(309.976,161.499) ..(310.000,160.000)..(309.976,158.501)..(309.906,157.003)..(309.788,155.508)..(309.623,154.018) ..(309.411,152.533)..(309.152,151.056)..(308.847,149.587)..(308.496,148.128)..(308.099,146.680) ..(307.657,145.245)..(307.170,143.824)..(306.638,142.418)..(306.062,141.030)..(305.442,139.659) ..(304.780,138.307)..(304.075,136.975)..(303.328,135.665)..(302.540,134.378)..(301.712,133.114) ..(300.844,131.876)..(299.938,130.663)..(298.993,129.476)..(298.011,128.318)..(296.993,127.188) ..(295.939,126.088)..(294.851,125.018)..(293.728,123.979)..(292.573,122.972)..(291.385,121.997) ..(290.167,121.056)..(288.918,120.148)..(287.639,119.274)..(286.332,118.435)..(284.998,117.631) ..(283.637,116.863)..(282.249,116.130)..(280.837,115.434)..(279.400,114.774)..(277.939,114.151) ..(276.455,113.565)..(274.950,113.016)..(273.422,112.505)..(271.873,112.031)..(270.304,111.594) ..(268.715,111.195)..(267.107,110.834)..(265.479,110.511)..(263.832,110.226)..(262.167,109.978) ..(260.483,109.769)..(258.782,109.598)..(257.061,109.466)..(255.323,109.372)..(253.567,109.317) ..(251.792,109.301)..(249.999,109.325)..(248.187,109.389)..(246.357,109.493)..(244.507,109.639) ..(242.638,109.826)..(240.750,110.056)..(238.841,110.330)..(236.913,110.648)..(234.965,111.012) ..(232.996,111.424)..(231.007,111.883)..(228.999,112.393)..(226.970,112.954)..(224.922,113.568) ..(222.855,114.237)..(220.771,114.962)..(218.670,115.745)..(216.553,116.588)..(214.422,117.491) ..(212.279,118.457)..(210.126,119.486)..(207.965,120.578)..(205.798,121.735)..(203.627,122.957) ..(201.455,124.242)..(199.285,125.591)..(197.118,127.002)..(194.957,128.473)..(192.805,130.004) ..(190.662,131.591)..(188.530,133.233)..(186.411,134.926)..(184.306,136.666)..(182.214,138.452) ..(180.138,140.279)..(178.075,142.143)..(176.026,144.042)..(173.991,145.971)..(171.968,147.926) ..(169.955,149.904)..(167.953,151.900)..(165.957,153.912)..(163.968,155.935)..(161.983,157.966) ..(160.000,160.000)..(158.017,162.034)..(156.032,164.065)..(154.043,166.088)..(152.047,168.100) ..(150.045,170.096)..(148.032,172.074)..(146.009,174.029)..(143.974,175.958)..(141.925,177.857) ..(139.862,179.721)..(137.786,181.548)..(135.694,183.334)..(133.589,185.074)..(131.470,186.767) ..(129.338,188.409)..(127.195,189.996)..(125.043,191.527)..(122.882,192.998)..(120.715,194.409) ..(118.545,195.758)..(116.373,197.043)..(114.202,198.265)..(112.035,199.422)..(109.874,200.514) ..(107.721,201.543)..(105.578,202.509)..(103.447,203.412)..(101.330,204.255)..(99.229,205.038) ..(97.145,205.763)..(95.078,206.432)..(93.030,207.046)..(91.001,207.607)..(88.993,208.117) ..(87.004,208.576)..(85.035,208.988)..(83.087,209.352)..(81.159,209.670)..(79.250,209.944) ..(77.362,210.174)..(75.493,210.361)..(73.643,210.507)..(71.813,210.611)..(70.001,210.675) ..(68.208,210.699)..(66.433,210.683)..(64.677,210.628)..(62.939,210.534)..(61.218,210.402) ..(59.517,210.231)..(57.833,210.022)..(56.168,209.774)..(54.521,209.489)..(52.893,209.166) ..(51.285,208.805)..(49.696,208.406)..(48.127,207.969)..(46.578,207.495)..(45.050,206.984) ..(43.545,206.435)..(42.061,205.849)..(40.600,205.226)..(39.163,204.566)..(37.751,203.870) ..(36.363,203.137)..(35.002,202.369)..(33.668,201.565)..(32.361,200.726)..(31.082,199.852) ..(29.833,198.944)..(28.615,198.003)..(27.427,197.028)..(26.272,196.021)..(25.149,194.982) ..(24.061,193.912)..(23.007,192.812)..(21.989,191.682)..(21.007,190.524)..(20.062,189.337) ..(19.156,188.124)..(18.288,186.886)..(17.460,185.622)..(16.672,184.335)..(15.925,183.025) ..(15.220,181.693)..(14.558,180.341)..(13.938,178.970)..(13.362,177.582)..(12.830,176.176) ..(12.343,174.755)..(11.901,173.320)..(11.504,171.872)..(11.153,170.413)..(10.848,168.944) ..(10.589,167.467)..(10.377,165.982)..(10.212,164.492)..(10.094,162.997)..(10.024,161.499) ..(10.000,160.000)..(10.024,158.501)..(10.094,157.003)..(10.212,155.508)..(10.377,154.018) ..(10.589,152.533)..(10.848,151.056)..(11.153,149.587)..(11.504,148.128)..(11.901,146.680) ..(12.343,145.245)..(12.830,143.824)..(13.362,142.418)..(13.938,141.030)..(14.558,139.659) ..(15.220,138.307)..(15.925,136.975)..(16.672,135.665)..(17.460,134.378)..(18.288,133.114) ..(19.156,131.876)..(20.062,130.663)..(21.007,129.476)..(21.989,128.318)..(23.007,127.188) ..(24.061,126.088)..(25.149,125.018)..(26.272,123.979)..(27.427,122.972)..(28.615,121.997) ..(29.833,121.056)..(31.082,120.148)..(32.361,119.274)..(33.668,118.435)..(35.002,117.631) ..(36.363,116.863)..(37.751,116.130)..(39.163,115.434)..(40.600,114.774)..(42.061,114.151) ..(43.545,113.565)..(45.050,113.016)..(46.578,112.505)..(48.127,112.031)..(49.696,111.594) ..(51.285,111.195)..(52.893,110.834)..(54.521,110.511)..(56.168,110.226)..(57.833,109.978) ..(59.517,109.769)..(61.218,109.598)..(62.939,109.466)..(64.677,109.372)..(66.433,109.317) ..(68.208,109.301)..(70.001,109.325)..(71.813,109.389)..(73.643,109.493)..(75.493,109.639) ..(77.362,109.826)..(79.250,110.056)..(81.159,110.330)..(83.087,110.648)..(85.035,111.012) ..(87.004,111.424)..(88.993,111.883)..(91.001,112.393)..(93.030,112.954)..(95.078,113.568) ..(97.145,114.237)..(99.229,114.962)..(101.330,115.745)..(103.447,116.588)..(105.578,117.491) ..(107.721,118.457)..(109.874,119.486)..(112.035,120.578)..(114.202,121.735)..(116.373,122.957) ..(118.545,124.242)..(120.715,125.591)..(122.882,127.002)..(125.043,128.473)..(127.195,130.004) ..(129.338,131.591)..(131.470,133.233)..(133.589,134.926)..(135.694,136.666)..(137.786,138.452) ..(139.862,140.279)..(141.925,142.143)..(143.974,144.042)..(146.009,145.971)..(148.032,147.926) ..(150.045,149.904)..(152.047,151.900)..(154.043,153.912)..(156.032,155.935)..(158.017,157.966) ..(160.000,160.000); b := 80; d := 400; 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