path trajectoire; trajectoire = (310.000,160.000)..(309.965,156.810)..(309.861,153.620)..(309.688,150.434)..(309.446,147.252) ..(309.134,144.075)..(308.754,140.905)..(308.305,137.744)..(307.787,134.592)..(307.201,131.451) ..(306.547,128.322)..(305.825,125.207)..(305.035,122.108)..(304.178,119.025)..(303.253,115.960) ..(302.262,112.914)..(301.205,109.889)..(300.081,106.885)..(298.892,103.905)..(297.637,100.950) ..(296.318,98.021)..(294.934,95.119)..(293.486,92.245)..(291.975,89.401)..(290.401,86.589) ..(288.764,83.809)..(287.066,81.062)..(285.307,78.350)..(283.487,75.675)..(281.607,73.037) ..(279.668,70.437)..(277.671,67.877)..(275.616,65.358)..(273.503,62.881)..(271.335,60.448) ..(269.111,58.059)..(266.831,55.715)..(264.499,53.419)..(262.112,51.170)..(259.674,48.971) ..(257.183,46.821)..(254.642,44.724)..(252.050,42.678)..(249.410,40.687)..(246.721,38.749) ..(243.984,36.868)..(241.200,35.043)..(238.371,33.276)..(235.497,31.567)..(232.579,29.918) ..(229.618,28.330)..(226.615,26.804)..(223.572,25.340)..(220.488,23.940)..(217.365,22.604) ..(214.205,21.335)..(211.007,20.132)..(207.774,18.997)..(204.506,17.932)..(201.204,16.936) ..(197.868,16.011)..(194.502,15.158)..(191.104,14.378)..(187.677,13.672)..(184.221,13.042) ..(180.737,12.488)..(177.227,12.012)..(173.691,11.615)..(170.130,11.297)..(166.546,11.061) ..(162.939,10.907)..(159.311,10.837)..(155.661,10.852)..(151.992,10.953)..(148.304,11.142) ..(144.599,11.419)..(140.877,11.787)..(137.139,12.246)..(133.388,12.798)..(129.623,13.445) ..(125.847,14.190)..(122.060,15.033)..(118.264,15.978)..(114.459,17.027)..(110.647,18.183) ..(106.828,19.448)..(103.005,20.826)..(99.177,22.319)..(95.348,23.931)..(91.517,25.664) ..(87.687,27.524)..(83.859,29.514)..(80.036,31.638)..(76.219,33.900)..(72.412,36.306) ..(68.618,38.860)..(64.840,41.569)..(61.082,44.439)..(57.349,47.477)..(53.645,50.689) ..(49.978,54.086)..(46.354,57.674)..(42.781,61.464)..(39.270,65.467)..(35.831,69.691) ..(32.479,74.150)..(29.230,78.856)..(26.105,83.821)..(23.128,89.059)..(20.329,94.584) ..(17.743,100.409)..(15.415,106.545)..(13.399,112.999)..(11.765,119.774)..(10.596,126.858) ..(10.000,134.223)..(10.102,141.803)..(11.044,149.480)..(12.959,157.054)..(15.909,164.231) ..(19.805,170.680)..(24.395,176.179)..(29.404,180.705)..(34.671,184.351)..(40.139,187.191) ..(45.780,189.236)..(51.539,190.452)..(57.321,190.800)..(62.996,190.254)..(68.413,188.828) ..(73.419,186.570)..(77.872,183.570)..(81.653,179.944)..(84.673,175.832)..(86.874,171.384) ..(88.231,166.754)..(88.746,162.089)..(88.447,157.529)..(87.383,153.201)..(85.616,149.219) ..(83.227,145.683)..(80.305,142.678)..(76.951,140.272)..(73.274,138.519)..(69.388,137.451) ..(65.414,137.084)..(61.471,137.413)..(57.677,138.412)..(54.142,140.033)..(50.967,142.213) ..(48.234,144.874)..(46.015,147.930)..(44.362,151.290)..(43.318,154.864)..(42.916,158.563) ..(43.188,162.294)..(44.160,165.954)..(45.848,169.425)..(48.250,172.565)..(51.324,175.217) ..(54.978,177.214)..(59.060,178.406)..(63.367,178.684)..(67.666,178.001)..(71.718,176.382) ..(75.311,173.916)..(78.270,170.743)..(80.472,167.033)..(81.841,162.972)..(82.352,158.747) ..(82.017,154.532)..(80.883,150.484)..(79.021,146.739)..(76.519,143.407)..(73.477,140.576) ..(69.998,138.310)..(66.188,136.656)..(62.153,135.645)..(57.996,135.292)..(53.820,135.602) ..(49.725,136.570)..(45.811,138.179)..(42.180,140.402)..(38.931,143.201)..(36.161,146.521) ..(33.967,150.296)..(32.437,154.439)..(31.652,158.845)..(31.677,163.391)..(32.558,167.934) ..(34.316,172.317)..(36.942,176.367)..(40.390,179.909)..(44.574,182.764)..(49.362,184.765) ..(54.577,185.770)..(59.998,185.670)..(65.368,184.414)..(70.410,182.018)..(74.851,178.574) ..(78.448,174.253)..(81.019,169.286)..(82.456,163.939)..(82.730,158.484)..(81.884,153.172) ..(80.010,148.222)..(77.240,143.808)..(73.723,140.066)..(69.624,137.092)..(65.106,134.948) ..(60.332,133.666)..(55.460,133.251)..(50.640,133.687)..(46.013,134.939)..(41.708,136.952) ..(37.847,139.654)..(34.533,142.959)..(31.859,146.764)..(29.895,150.956)..(28.695,155.412) ..(28.291,160.000)..(28.695,164.588)..(29.895,169.044)..(31.859,173.236)..(34.533,177.041) ..(37.847,180.346)..(41.708,183.048)..(46.013,185.061)..(50.640,186.313)..(55.460,186.749) ..(60.332,186.334)..(65.106,185.052)..(69.624,182.908)..(73.723,179.934)..(77.240,176.192) ..(80.010,171.778)..(81.884,166.828)..(82.730,161.516)..(82.456,156.061)..(81.019,150.714) ..(78.448,145.747)..(74.851,141.426)..(70.410,137.982)..(65.368,135.586)..(59.998,134.330) ..(54.577,134.230)..(49.362,135.235)..(44.574,137.236)..(40.390,140.091)..(36.942,143.633) ..(34.316,147.683)..(32.558,152.066)..(31.677,156.609)..(31.652,161.155)..(32.437,165.561) ..(33.967,169.704)..(36.161,173.479)..(38.931,176.799)..(42.180,179.598)..(45.811,181.821) ..(49.725,183.430)..(53.820,184.398)..(57.996,184.708)..(62.153,184.355)..(66.188,183.344) ..(69.998,181.690)..(73.477,179.424)..(76.519,176.593)..(79.021,173.261)..(80.883,169.516) ..(82.017,165.468)..(82.352,161.253)..(81.841,157.028)..(80.472,152.967)..(78.270,149.257) ..(75.311,146.084)..(71.718,143.618)..(67.666,141.999)..(63.367,141.316)..(59.060,141.594) ..(54.978,142.786)..(51.324,144.783)..(48.250,147.435)..(45.848,150.575)..(44.160,154.046) ..(43.188,157.706)..(42.916,161.437)..(43.318,165.136)..(44.362,168.710)..(46.015,172.070) ..(48.234,175.126)..(50.967,177.787)..(54.142,179.967)..(57.677,181.588)..(61.471,182.587) ..(65.414,182.916)..(69.388,182.549)..(73.274,181.481)..(76.951,179.728)..(80.305,177.322) ..(83.227,174.317)..(85.616,170.781)..(87.383,166.799)..(88.447,162.471)..(88.746,157.911) ..(88.231,153.246)..(86.874,148.616)..(84.673,144.168)..(81.653,140.056)..(77.872,136.430) ..(73.419,133.430)..(68.413,131.172)..(62.996,129.746)..(57.321,129.200)..(51.539,129.548) ..(45.780,130.764)..(40.139,132.809)..(34.671,135.649)..(29.404,139.295)..(24.395,143.821) ..(19.805,149.320)..(15.909,155.769)..(12.959,162.946)..(11.044,170.520)..(10.102,178.197) ..(10.000,185.777)..(10.596,193.142)..(11.765,200.226)..(13.399,207.001)..(15.415,213.455) ..(17.743,219.591)..(20.329,225.416)..(23.128,230.941)..(26.105,236.179)..(29.230,241.144) ..(32.479,245.850)..(35.831,250.309)..(39.270,254.533)..(42.781,258.536)..(46.354,262.326) ..(49.978,265.914)..(53.645,269.311)..(57.349,272.523)..(61.082,275.561)..(64.840,278.431) ..(68.618,281.140)..(72.412,283.694)..(76.219,286.100)..(80.036,288.362)..(83.859,290.486) ..(87.687,292.476)..(91.517,294.336)..(95.348,296.069)..(99.177,297.681)..(103.005,299.174) ..(106.828,300.552)..(110.647,301.817)..(114.459,302.973)..(118.264,304.022)..(122.060,304.967) ..(125.847,305.810)..(129.623,306.555)..(133.388,307.202)..(137.139,307.754)..(140.877,308.213) ..(144.599,308.581)..(148.304,308.858)..(151.992,309.047)..(155.661,309.148)..(159.311,309.163) ..(162.939,309.093)..(166.546,308.939)..(170.130,308.703)..(173.691,308.385)..(177.227,307.988) ..(180.737,307.512)..(184.221,306.958)..(187.677,306.328)..(191.104,305.622)..(194.502,304.842) ..(197.868,303.989)..(201.204,303.064)..(204.506,302.068)..(207.774,301.003)..(211.007,299.868) ..(214.205,298.665)..(217.365,297.396)..(220.488,296.060)..(223.572,294.660)..(226.615,293.196) ..(229.618,291.670)..(232.579,290.082)..(235.497,288.433)..(238.371,286.724)..(241.200,284.957) ..(243.984,283.132)..(246.721,281.251)..(249.410,279.313)..(252.050,277.322)..(254.642,275.276) ..(257.183,273.179)..(259.674,271.029)..(262.112,268.830)..(264.499,266.581)..(266.831,264.285) ..(269.111,261.941)..(271.335,259.552)..(273.503,257.119)..(275.616,254.642)..(277.671,252.123) ..(279.668,249.563)..(281.607,246.963)..(283.487,244.325)..(285.307,241.650)..(287.066,238.938) ..(288.764,236.191)..(290.401,233.411)..(291.975,230.599)..(293.486,227.755)..(294.934,224.881) ..(296.318,221.979)..(297.637,219.050)..(298.892,216.095)..(300.081,213.115)..(301.205,210.111) ..(302.262,207.086)..(303.253,204.040)..(304.178,200.975)..(305.035,197.892)..(305.825,194.793) ..(306.547,191.678)..(307.201,188.549)..(307.787,185.408)..(308.305,182.256)..(308.754,179.095) ..(309.134,175.925)..(309.446,172.748)..(309.688,169.566)..(309.861,166.380)..(309.965,163.190) ..(310.000,160.000); b := 40; d := 440; 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