path trajectoire; trajectoire = (310.000,160.000)..(309.973,162.856)..(309.891,165.711)..(309.755,168.563)..(309.565,171.413) ..(309.321,174.258)..(309.022,177.099)..(308.670,179.933)..(308.263,182.760)..(307.803,185.578) ..(307.289,188.388)..(306.722,191.187)..(306.102,193.975)..(305.428,196.750)..(304.702,199.512) ..(303.924,202.260)..(303.093,204.992)..(302.211,207.709)..(301.277,210.407)..(300.291,213.088) ..(299.255,215.749)..(298.169,218.391)..(297.032,221.010)..(295.845,223.608)..(294.610,226.183) ..(293.325,228.734)..(291.993,231.260)..(290.612,233.760)..(289.184,236.233)..(287.709,238.679) ..(286.188,241.096)..(284.621,243.484)..(283.009,245.841)..(281.353,248.168)..(279.652,250.462) ..(277.908,252.724)..(276.121,254.952)..(274.292,257.146)..(272.422,259.304)..(270.511,261.426) ..(268.560,263.512)..(266.570,265.560)..(264.541,267.570)..(262.474,269.541)..(260.370,271.472) ..(258.229,273.362)..(256.053,275.212)..(253.842,277.020)..(251.597,278.785)..(249.319,280.508) ..(247.009,282.186)..(244.666,283.821)..(242.294,285.410)..(239.891,286.954)..(237.460,288.452) ..(235.000,289.904)..(232.513,291.308)..(230.000,292.665)..(227.462,293.974)..(224.899,295.234) ..(222.312,296.445)..(219.703,297.606)..(217.073,298.718)..(214.421,299.780)..(211.750,300.790) ..(209.060,301.750)..(206.353,302.658)..(203.628,303.515)..(200.888,304.320)..(198.133,305.072) ..(195.364,305.772)..(192.582,306.419)..(189.789,307.012)..(186.984,307.553)..(184.170,308.040) ..(181.347,308.473)..(178.517,308.853)..(175.679,309.178)..(172.836,309.450)..(169.989,309.667) ..(167.137,309.830)..(164.283,309.939)..(161.428,309.993)..(158.572,309.993)..(155.717,309.939) ..(152.863,309.830)..(150.011,309.667)..(147.164,309.450)..(144.321,309.178)..(141.483,308.853) ..(138.653,308.473)..(135.830,308.040)..(133.016,307.553)..(130.211,307.012)..(127.418,306.419) ..(124.636,305.772)..(121.867,305.072)..(119.112,304.320)..(116.372,303.515)..(113.647,302.658) ..(110.940,301.750)..(108.250,300.790)..(105.579,299.780)..(102.927,298.718)..(100.297,297.606) ..(97.688,296.445)..(95.101,295.234)..(92.538,293.974)..(90.000,292.665)..(87.487,291.308) ..(85.000,289.904)..(82.540,288.452)..(80.109,286.954)..(77.706,285.410)..(75.334,283.821) ..(72.991,282.186)..(70.681,280.508)..(68.403,278.785)..(66.158,277.020)..(63.947,275.212) ..(61.771,273.362)..(59.630,271.472)..(57.526,269.541)..(55.459,267.570)..(53.430,265.560) ..(51.440,263.512)..(49.489,261.426)..(47.578,259.304)..(45.708,257.146)..(43.879,254.952) ..(42.092,252.724)..(40.348,250.462)..(38.647,248.168)..(36.991,245.841)..(35.379,243.484) ..(33.812,241.096)..(32.291,238.679)..(30.816,236.233)..(29.388,233.760)..(28.007,231.260) ..(26.675,228.734)..(25.390,226.183)..(24.155,223.608)..(22.968,221.010)..(21.831,218.391) ..(20.745,215.749)..(19.709,213.088)..(18.723,210.407)..(17.789,207.709)..(16.907,204.992) ..(16.076,202.260)..(15.298,199.512)..(14.572,196.750)..(13.898,193.975)..(13.278,191.187) ..(12.711,188.388)..(12.197,185.578)..(11.737,182.760)..(11.330,179.933)..(10.978,177.099) ..(10.679,174.258)..(10.435,171.413)..(10.245,168.563)..(10.109,165.711)..(10.027,162.856) ..(10.000,160.000)..(10.027,157.144)..(10.109,154.289)..(10.245,151.437)..(10.435,148.587) ..(10.679,145.742)..(10.978,142.901)..(11.330,140.067)..(11.737,137.240)..(12.197,134.422) ..(12.711,131.612)..(13.278,128.813)..(13.898,126.025)..(14.572,123.250)..(15.298,120.488) ..(16.076,117.740)..(16.907,115.008)..(17.789,112.291)..(18.723,109.593)..(19.709,106.912) ..(20.745,104.251)..(21.831,101.609)..(22.968,98.990)..(24.155,96.392)..(25.390,93.817) ..(26.675,91.266)..(28.007,88.740)..(29.388,86.240)..(30.816,83.767)..(32.291,81.321) ..(33.812,78.904)..(35.379,76.516)..(36.991,74.159)..(38.647,71.832)..(40.348,69.538) ..(42.092,67.276)..(43.879,65.048)..(45.708,62.854)..(47.578,60.696)..(49.489,58.574) ..(51.440,56.488)..(53.430,54.440)..(55.459,52.430)..(57.526,50.459)..(59.630,48.528) ..(61.771,46.638)..(63.947,44.788)..(66.158,42.980)..(68.403,41.215)..(70.681,39.492) ..(72.991,37.814)..(75.334,36.179)..(77.706,34.590)..(80.109,33.046)..(82.540,31.548) ..(85.000,30.096)..(87.487,28.692)..(90.000,27.335)..(92.538,26.026)..(95.101,24.766) ..(97.688,23.555)..(100.297,22.394)..(102.927,21.282)..(105.579,20.220)..(108.250,19.210) ..(110.940,18.250)..(113.647,17.342)..(116.372,16.485)..(119.112,15.680)..(121.867,14.928) ..(124.636,14.228)..(127.418,13.581)..(130.211,12.988)..(133.016,12.447)..(135.830,11.960) ..(138.653,11.527)..(141.483,11.147)..(144.321,10.822)..(147.164,10.550)..(150.011,10.333) ..(152.863,10.170)..(155.717,10.061)..(158.572,10.007)..(161.428,10.007)..(164.283,10.061) ..(167.137,10.170)..(169.989,10.333)..(172.836,10.550)..(175.679,10.822)..(178.517,11.147) ..(181.347,11.527)..(184.170,11.960)..(186.984,12.447)..(189.789,12.988)..(192.582,13.581) ..(195.364,14.228)..(198.133,14.928)..(200.888,15.680)..(203.628,16.485)..(206.353,17.342) ..(209.060,18.250)..(211.750,19.210)..(214.421,20.220)..(217.073,21.282)..(219.703,22.394) ..(222.312,23.555)..(224.899,24.766)..(227.462,26.026)..(230.000,27.335)..(232.513,28.692) ..(235.000,30.096)..(237.460,31.548)..(239.891,33.046)..(242.294,34.590)..(244.666,36.179) ..(247.009,37.814)..(249.319,39.492)..(251.597,41.215)..(253.842,42.980)..(256.053,44.788) ..(258.229,46.638)..(260.370,48.528)..(262.474,50.459)..(264.541,52.430)..(266.570,54.440) ..(268.560,56.488)..(270.511,58.574)..(272.422,60.696)..(274.292,62.854)..(276.121,65.048) ..(277.908,67.276)..(279.652,69.538)..(281.353,71.832)..(283.009,74.159)..(284.621,76.516) ..(286.188,78.904)..(287.709,81.321)..(289.184,83.767)..(290.612,86.240)..(291.993,88.740) ..(293.325,91.266)..(294.610,93.817)..(295.845,96.392)..(297.032,98.990)..(298.169,101.609) ..(299.255,104.251)..(300.291,106.912)..(301.277,109.593)..(302.211,112.291)..(303.093,115.008) ..(303.924,117.740)..(304.702,120.488)..(305.428,123.250)..(306.102,126.025)..(306.722,128.813) ..(307.289,131.612)..(307.803,134.422)..(308.263,137.240)..(308.670,140.067)..(309.022,142.901) ..(309.321,145.742)..(309.565,148.587)..(309.755,151.437)..(309.891,154.289)..(309.973,157.144) ..(310.000,160.000); b := 30; d := 330; 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