path trajectoire; trajectoire = (237.735,160.000)..(238.063,164.980)..(239.065,169.930)..(240.781,174.796)..(243.264,179.488) ..(246.551,183.874)..(250.651,187.783)..(255.522,191.027)..(261.067,193.417)..(267.141,194.787) ..(273.560,195.002)..(280.108,193.968)..(286.555,191.640)..(292.660,188.015)..(298.182,183.137) ..(302.884,177.097)..(306.547,170.031)..(308.972,162.126)..(310.000,153.612)..(309.524,144.755) ..(307.501,135.846)..(303.963,127.177)..(299.009,119.017)..(292.802,111.592)..(285.542,105.066) ..(277.443,99.543)..(268.717,95.065)..(259.551,91.627)..(250.103,89.191)..(240.500,87.698) ..(230.835,87.085)..(221.176,87.287)..(211.571,88.248)..(202.051,89.924)..(192.643,92.282) ..(183.372,95.300)..(174.265,98.960)..(165.354,103.244)..(156.673,108.124)..(148.253,113.562) ..(140.109,119.503)..(132.240,125.881)..(124.613,132.623)..(117.169,139.646)..(109.812,146.864) ..(102.412,154.171)..(94.799,161.422)..(86.776,168.398)..(78.162,174.748)..(68.912,179.958) ..(59.311,183.459)..(50.008,184.979)..(41.662,184.783)..(34.572,183.428)..(28.717,181.412) ..(23.943,179.058)..(20.079,176.550)..(16.981,173.983)..(14.540,171.407)..(12.671,168.844) ..(11.317,166.298)..(10.435,163.771)..(10.000,161.256)..(10.000,158.744)..(10.435,156.229) ..(11.317,153.702)..(12.671,151.156)..(14.540,148.593)..(16.981,146.017)..(20.079,143.450) ..(23.943,140.942)..(28.717,138.588)..(34.572,136.572)..(41.662,135.217)..(50.008,135.021) ..(59.311,136.541)..(68.912,140.042)..(78.162,145.252)..(86.776,151.602)..(94.799,158.578) ..(102.412,165.829)..(109.812,173.136)..(117.169,180.354)..(124.613,187.377)..(132.240,194.119) ..(140.109,200.497)..(148.253,206.438)..(156.673,211.876)..(165.354,216.756)..(174.265,221.040) ..(183.372,224.700)..(192.643,227.718)..(202.051,230.076)..(211.571,231.752)..(221.176,232.713) ..(230.835,232.915)..(240.500,232.302)..(250.103,230.809)..(259.551,228.373)..(268.717,224.935) ..(277.443,220.457)..(285.542,214.934)..(292.802,208.408)..(299.009,200.983)..(303.963,192.823) ..(307.501,184.154)..(309.524,175.245)..(310.000,166.388)..(308.972,157.874)..(306.547,149.969) ..(302.884,142.903)..(298.182,136.863)..(292.660,131.985)..(286.555,128.360)..(280.108,126.032) ..(273.560,124.998)..(267.141,125.213)..(261.067,126.583)..(255.522,128.973)..(250.651,132.217) ..(246.551,136.126)..(243.264,140.512)..(240.781,145.204)..(239.065,150.070)..(238.063,155.020) ..(237.735,160.000); b := 25; d := 125; 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