path trajectoire; trajectoire = (310.000,160.000)..(309.807,154.352)..(309.229,148.728)..(308.267,143.151)..(306.924,137.646) ..(305.203,132.236)..(303.111,126.946)..(300.656,121.800)..(297.848,116.822)..(294.700,112.034) ..(291.224,107.460)..(287.436,103.119)..(283.355,99.031)..(278.999,95.214)..(274.387,91.685) ..(269.542,88.456)..(264.486,85.542)..(259.240,82.951)..(253.828,80.691)..(248.272,78.769) ..(242.595,77.186)..(236.817,75.946)..(230.958,75.046)..(225.037,74.485)..(219.066,74.258) ..(213.058,74.362)..(207.019,74.794)..(200.951,75.555)..(194.856,76.648)..(188.735,78.081) ..(182.591,79.863)..(176.429,82.005)..(170.256,84.518)..(164.083,87.413)..(157.923,90.698) ..(151.790,94.380)..(145.698,98.461)..(139.661,102.939)..(133.690,107.807)..(127.790,113.053) ..(121.960,118.660)..(116.188,124.604)..(110.446,130.854)..(104.689,137.373)..(98.847,144.110) ..(92.817,150.991)..(86.457,157.905)..(79.586,164.659)..(72.012,170.924)..(63.655,176.162) ..(54.794,179.723)..(46.156,181.274)..(38.476,181.126)..(32.037,179.906)..(26.771,178.124) ..(22.499,176.080)..(19.045,173.928)..(16.275,171.747)..(14.087,169.571)..(12.408,167.413) ..(11.188,165.277)..(10.393,163.158)..(10.000,161.051)..(10.000,158.949)..(10.393,156.842) ..(11.188,154.723)..(12.408,152.587)..(14.087,150.429)..(16.275,148.253)..(19.045,146.072) ..(22.499,143.920)..(26.771,141.876)..(32.037,140.094)..(38.476,138.874)..(46.156,138.726) ..(54.794,140.277)..(63.655,143.838)..(72.012,149.076)..(79.586,155.341)..(86.457,162.095) ..(92.817,169.009)..(98.847,175.890)..(104.689,182.627)..(110.446,189.146)..(116.188,195.396) ..(121.960,201.340)..(127.790,206.947)..(133.690,212.193)..(139.661,217.061)..(145.698,221.539) ..(151.790,225.620)..(157.923,229.302)..(164.083,232.587)..(170.256,235.482)..(176.429,237.995) ..(182.591,240.137)..(188.735,241.919)..(194.856,243.352)..(200.951,244.445)..(207.019,245.206) ..(213.058,245.638)..(219.066,245.742)..(225.037,245.515)..(230.958,244.954)..(236.817,244.054) ..(242.595,242.814)..(248.272,241.231)..(253.828,239.309)..(259.240,237.049)..(264.486,234.458) ..(269.542,231.544)..(274.387,228.315)..(278.999,224.786)..(283.355,220.969)..(287.436,216.881) ..(291.224,212.540)..(294.700,207.966)..(297.848,203.178)..(300.656,198.200)..(303.111,193.054) ..(305.203,187.764)..(306.924,182.354)..(308.267,176.849)..(309.229,171.272)..(309.807,165.648) ..(310.000,160.000); 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