path trajectoire; trajectoire = (310.000,160.000)..(309.956,159.624)..(309.822,159.248)..(309.599,158.872)..(309.285,158.496) ..(308.879,158.120)..(308.380,157.743)..(307.785,157.365)..(307.093,156.984)..(306.300,156.601) ..(305.406,156.214)..(304.405,155.823)..(303.297,155.424)..(302.076,155.017)..(300.739,154.600) ..(299.284,154.169)..(297.705,153.723)..(296.001,153.257)..(294.167,152.769)..(292.201,152.255) ..(290.101,151.713)..(287.864,151.142)..(285.487,150.540)..(282.963,149.907)..(280.287,149.243) ..(277.448,148.548)..(274.435,147.823)..(271.233,147.070)..(267.819,146.294)..(264.169,145.500) ..(260.246,144.704)..(256.003,143.929)..(251.377,143.219)..(246.287,142.657)..(240.649,142.397) ..(234.429,142.698)..(227.769,143.883)..(221.039,146.121)..(214.610,149.250)..(208.624,152.949) ..(203.049,156.968)..(197.801,161.161)..(192.801,165.457)..(187.987,169.822)..(183.311,174.248) ..(178.739,178.739)..(174.248,183.311)..(169.822,187.987)..(165.457,192.801)..(161.161,197.801) ..(156.968,203.049)..(152.949,208.624)..(149.250,214.610)..(146.121,221.039)..(143.883,227.769) ..(142.698,234.429)..(142.397,240.649)..(142.657,246.287)..(143.219,251.377)..(143.929,256.003) ..(144.704,260.246)..(145.500,264.169)..(146.294,267.819)..(147.070,271.233)..(147.823,274.435) ..(148.548,277.448)..(149.243,280.287)..(149.907,282.963)..(150.540,285.487)..(151.142,287.864) ..(151.713,290.101)..(152.255,292.201)..(152.769,294.167)..(153.257,296.001)..(153.723,297.705) ..(154.169,299.284)..(154.600,300.739)..(155.017,302.076)..(155.424,303.297)..(155.823,304.405) ..(156.214,305.406)..(156.601,306.300)..(156.984,307.093)..(157.365,307.785)..(157.743,308.380) ..(158.120,308.879)..(158.496,309.285)..(158.872,309.599)..(159.248,309.822)..(159.624,309.956) ..(160.000,310.000)..(160.376,309.956)..(160.752,309.822)..(161.128,309.599)..(161.504,309.285) ..(161.880,308.879)..(162.257,308.380)..(162.635,307.785)..(163.016,307.093)..(163.399,306.300) ..(163.786,305.406)..(164.177,304.405)..(164.576,303.297)..(164.983,302.076)..(165.400,300.739) ..(165.831,299.284)..(166.277,297.705)..(166.743,296.001)..(167.231,294.167)..(167.745,292.201) ..(168.287,290.101)..(168.858,287.864)..(169.460,285.487)..(170.093,282.963)..(170.757,280.287) ..(171.452,277.448)..(172.177,274.435)..(172.930,271.233)..(173.706,267.819)..(174.500,264.169) ..(175.296,260.246)..(176.071,256.003)..(176.781,251.377)..(177.343,246.287)..(177.603,240.649) ..(177.302,234.429)..(176.117,227.769)..(173.879,221.039)..(170.750,214.610)..(167.051,208.624) ..(163.032,203.049)..(158.839,197.801)..(154.543,192.801)..(150.178,187.987)..(145.752,183.311) ..(141.261,178.739)..(136.689,174.248)..(132.013,169.822)..(127.199,165.457)..(122.199,161.161) ..(116.951,156.968)..(111.376,152.949)..(105.390,149.250)..(98.961,146.121)..(92.231,143.883) ..(85.571,142.698)..(79.351,142.397)..(73.713,142.657)..(68.623,143.219)..(63.997,143.929) ..(59.754,144.704)..(55.831,145.500)..(52.181,146.294)..(48.767,147.070)..(45.565,147.823) ..(42.552,148.548)..(39.713,149.243)..(37.037,149.907)..(34.513,150.540)..(32.136,151.142) ..(29.899,151.713)..(27.799,152.255)..(25.833,152.769)..(23.999,153.257)..(22.295,153.723) ..(20.716,154.169)..(19.261,154.600)..(17.924,155.017)..(16.703,155.424)..(15.595,155.823) ..(14.594,156.214)..(13.700,156.601)..(12.907,156.984)..(12.215,157.365)..(11.620,157.743) ..(11.121,158.120)..(10.715,158.496)..(10.401,158.872)..(10.178,159.248)..(10.044,159.624) ..(10.000,160.000)..(10.044,160.376)..(10.178,160.752)..(10.401,161.128)..(10.715,161.504) ..(11.121,161.880)..(11.620,162.257)..(12.215,162.635)..(12.907,163.016)..(13.700,163.399) ..(14.594,163.786)..(15.595,164.177)..(16.703,164.576)..(17.924,164.983)..(19.261,165.400) ..(20.716,165.831)..(22.295,166.277)..(23.999,166.743)..(25.833,167.231)..(27.799,167.745) ..(29.899,168.287)..(32.136,168.858)..(34.513,169.460)..(37.037,170.093)..(39.713,170.757) ..(42.552,171.452)..(45.565,172.177)..(48.767,172.930)..(52.181,173.706)..(55.831,174.500) ..(59.754,175.296)..(63.997,176.071)..(68.623,176.781)..(73.713,177.343)..(79.351,177.603) ..(85.571,177.302)..(92.231,176.117)..(98.961,173.879)..(105.390,170.750)..(111.376,167.051) ..(116.951,163.032)..(122.199,158.839)..(127.199,154.543)..(132.013,150.178)..(136.689,145.752) ..(141.261,141.261)..(145.752,136.689)..(150.178,132.013)..(154.543,127.199)..(158.839,122.199) ..(163.032,116.951)..(167.051,111.376)..(170.750,105.390)..(173.879,98.961)..(176.117,92.231) ..(177.302,85.571)..(177.603,79.351)..(177.343,73.713)..(176.781,68.623)..(176.071,63.997) ..(175.296,59.754)..(174.500,55.831)..(173.706,52.181)..(172.930,48.767)..(172.177,45.565) ..(171.452,42.552)..(170.757,39.713)..(170.093,37.037)..(169.460,34.513)..(168.858,32.136) ..(168.287,29.899)..(167.745,27.799)..(167.231,25.833)..(166.743,23.999)..(166.277,22.295) ..(165.831,20.716)..(165.400,19.261)..(164.983,17.924)..(164.576,16.703)..(164.177,15.595) ..(163.786,14.594)..(163.399,13.700)..(163.016,12.907)..(162.635,12.215)..(162.257,11.620) ..(161.880,11.121)..(161.504,10.715)..(161.128,10.401)..(160.752,10.178)..(160.376,10.044) ..(160.000,10.000)..(159.624,10.044)..(159.248,10.178)..(158.872,10.401)..(158.496,10.715) ..(158.120,11.121)..(157.743,11.620)..(157.365,12.215)..(156.984,12.907)..(156.601,13.700) ..(156.214,14.594)..(155.823,15.595)..(155.424,16.703)..(155.017,17.924)..(154.600,19.261) ..(154.169,20.716)..(153.723,22.295)..(153.257,23.999)..(152.769,25.833)..(152.255,27.799) ..(151.713,29.899)..(151.142,32.136)..(150.540,34.513)..(149.907,37.037)..(149.243,39.713) ..(148.548,42.552)..(147.823,45.565)..(147.070,48.767)..(146.294,52.181)..(145.500,55.831) ..(144.704,59.754)..(143.929,63.997)..(143.219,68.623)..(142.657,73.713)..(142.397,79.351) ..(142.698,85.571)..(143.883,92.231)..(146.121,98.961)..(149.250,105.390)..(152.949,111.376) ..(156.968,116.951)..(161.161,122.199)..(165.457,127.199)..(169.822,132.013)..(174.248,136.689) ..(178.739,141.261)..(183.311,145.752)..(187.987,150.178)..(192.801,154.543)..(197.801,158.839) ..(203.049,163.032)..(208.624,167.051)..(214.610,170.750)..(221.039,173.879)..(227.769,176.117) ..(234.429,177.302)..(240.649,177.603)..(246.287,177.343)..(251.377,176.781)..(256.003,176.071) ..(260.246,175.296)..(264.169,174.500)..(267.819,173.706)..(271.233,172.930)..(274.435,172.177) ..(277.448,171.452)..(280.287,170.757)..(282.963,170.093)..(285.487,169.460)..(287.864,168.858) ..(290.101,168.287)..(292.201,167.745)..(294.167,167.231)..(296.001,166.743)..(297.705,166.277) ..(299.284,165.831)..(300.739,165.400)..(302.076,164.983)..(303.297,164.576)..(304.405,164.177) ..(305.406,163.786)..(306.300,163.399)..(307.093,163.016)..(307.785,162.635)..(308.380,162.257) ..(308.879,161.880)..(309.285,161.504)..(309.599,161.128)..(309.822,160.752)..(309.956,160.376) ..(310.000,160.000); b := 72; d := 360; 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