// --- courbe bleu
<-5.769161,-5.026280,-2.089972>,<-5.853168,-5.991236,-1.380421>,
<-5.680643,-6.862317,-0.576996>,<-5.250741,-7.629658, 0.235731>,
<-4.561487,-8.270706, 0.979956>,<-3.623312,-8.739794, 1.572517>,
<-2.486396,-8.970109, 1.923487>,<-1.268009,-8.893149, 1.948576>,
<-0.160129,-8.472549, 1.598734>,< 0.598473,-7.744393, 0.896795>,
< 0.817794,-6.835818,-0.044763>,< 0.433560,-5.899054,-0.974480>,
<-0.449080,-4.998372,-1.431446>,<-1.506499,-4.269652,-1.228757>,
<-2.499927,-3.763917,-0.578124>,<-3.450223,-3.257900, 0.122124>,
<-4.386989,-2.532845, 0.566686>,<-5.181674,-1.577756, 0.654358>,
<-5.709116,-0.491018, 0.422351>,<-5.922798, 0.622218,-0.026157>,
<-5.833999, 1.703035,-0.569949>,<-5.467806, 2.736212,-1.088651>,
<-4.847055, 3.715262,-1.461327>,<-4.010365, 4.608896,-1.567323>,
<-3.050484, 5.363269,-1.314456>,<-2.112592, 5.967107,-0.701880>,
<-1.296200, 6.534014, 0.116204>,<-0.519838, 7.190568, 0.872551>,
< 0.370977, 7.904910, 1.357425>,< 1.411482, 8.541730, 1.473287>,
< 2.524437, 8.962331, 1.210553>,< 3.583549, 9.071708, 0.627013>,
< 4.459986, 8.828425,-0.174720>,< 5.043808, 8.243476,-1.060743>,
< 5.262001, 7.376904,-1.880518>,< 5.092859, 6.333581,-2.479280>,
< 4.580922, 5.253045,-2.722845>,< 3.844027, 4.289782,-2.524103>,
< 3.058081, 3.570928,-1.881081>,< 2.386868, 3.137642,-0.899212>,
< 1.819961, 2.850383, 0.223609>,< 1.133244, 2.405257, 1.219574>,
< 0.235663, 1.677946, 1.790710>,<-0.734366, 0.828853, 1.736585>,
<-1.581486, 0.120711, 1.078622>,<-2.201109,-0.325259, 0.042346>,
<-2.729960,-0.669463,-1.079066>,<-3.378902,-1.187602,-2.033027>,
<-4.136658,-1.965655,-2.638274>,<-4.862842,-2.937376,-2.819538>,
<-5.430877,-3.989722,-2.606137>,<-5.769161,-5.026280,-2.089972>,
<-5.853168,-5.991236,-1.380421>,<-5.680643,-6.862317,-0.576996>

// --- courbe or
< 2.975196,-8.382787,-1.817756>,< 1.865902,-8.699567,-2.201095>,
< 0.641466,-8.733548,-2.249679>,<-0.511639,-8.429967,-1.907342>,
<-1.349929,-7.798090,-1.194585>,<-1.663339,-6.940423,-0.230482>,
<-1.368183,-6.004122, 0.728285>,<-0.550113,-5.064451, 1.224800>,
< 0.472965,-4.277274, 1.049559>,< 1.439596,-3.738634, 0.382017>,
< 2.355396,-3.274415,-0.394770>,< 3.309389,-2.646471,-0.945205>,
< 4.218729,-1.814078,-1.130274>,< 4.953672,-0.841550,-0.971884>,
< 5.439234, 0.203995,-0.578155>,< 5.647332, 1.291665,-0.081640>,
< 5.562240, 2.410227, 0.385106>,< 5.171318, 3.527385, 0.691496>,
< 4.494509, 4.561977, 0.716209>,< 3.628978, 5.413747, 0.380893>,
< 2.749968, 6.076515,-0.289738>,< 1.972619, 6.708392,-1.102753>,
< 1.197236, 7.427327,-1.782933>,< 0.288738, 8.173223,-2.149702>,
<-0.754280, 8.803134,-2.137626>,<-1.842511, 9.186471,-1.764678>,
<-2.854918, 9.239831,-1.106684>,<-3.674673, 8.931474,-0.277101>,
<-4.206853, 8.279378, 0.585622>,<-4.391361, 7.349256, 1.330955>,
<-4.218648, 6.253160, 1.810339>,<-3.743196, 5.139091, 1.904980>,
<-3.085202, 4.162351, 1.563766>,<-2.389014, 3.417579, 0.845674>,
<-1.701533, 2.821368,-0.050187>,<-0.922780, 2.104960,-0.780917>,
<-0.034502, 1.189161,-1.009516>,< 0.841700, 0.320541,-0.617752>,
< 1.597144,-0.293923, 0.223346>,< 2.285749,-0.797178, 1.176497>,
< 3.025465,-1.472865, 1.928570>,< 3.771922,-2.381082, 2.299833>,
< 4.399305,-3.426066, 2.250406>,< 4.812412,-4.489023, 1.843477>,
< 4.969680,-5.488230, 1.189415>,< 4.863805,-6.388303, 0.401114>,
< 4.496194,-7.180817,-0.422292>,< 3.865159,-7.856503,-1.192339>,
< 2.975196,-8.382787,-1.817756>,< 1.865902,-8.699567,-2.201095>,
< 0.641466,-8.733548,-2.249679>

< 0.300775, 1.301248,-0.702434>, <-0.976281,-0.910795, 0.701983>,
< 0.976171,-0.910795,-0.702076>, <-0.300495, 1.300967, 0.702620>,
<-1.276451,-0.390204,-0.702474>, < 1.276282,-0.390420, 0.702381>

<-2.514992,-7.134712,-1.399228>, <-1.588238,-7.657107,-0.803458>,
<-0.596617,-7.948214,-0.159835>, < 0.447377,-7.987028, 0.468901>,
< 1.513968,-7.734736, 1.012830>, < 2.534832,-7.162360, 1.388743>,
< 3.404162,-6.293562, 1.512097>, < 4.010833,-5.225110, 1.321483>,
< 4.285456,-4.110666, 0.806265>, < 4.238134,-3.083421, 0.029716>,
< 3.910341,-2.108016,-0.801863>, < 3.300481,-1.019094,-1.255137>,
< 2.572317, 0.082324,-0.979982>, < 2.028919, 0.933044,-0.050039>,
< 1.635727, 1.691514, 1.038352>, < 1.093392, 2.749864, 1.678253>,
< 0.409892, 3.885842, 1.554102>, <-0.266963, 4.697749, 0.759741>,
<-0.901813, 5.122577,-0.327320>, <-1.664803, 5.385768,-1.335158>,
<-2.653234, 5.518162,-2.088578>, <-3.799580, 5.449573,-2.521382>,
<-4.970916, 5.151555,-2.632773>, <-6.049736, 4.642983,-2.470073>,
<-6.963995, 3.964799,-2.103466>, <-7.683385, 3.159274,-1.602338>,
<-8.198869, 2.260966,-1.022519>, <-8.505129, 1.295663,-0.406278>,
<-8.589137, 0.287028, 0.212090>, <-8.428563,-0.735964, 0.795365>,
<-8.001343,-1.730243, 1.295695>, <-7.302422,-2.634666, 1.652732>,
<-6.363705,-3.373729, 1.800811>, <-5.265744,-3.874325, 1.682241>,
<-4.130829,-4.091259, 1.269908>, <-3.079126,-4.033303, 0.589597>,
<-2.116482,-3.744856,-0.234007>, <-1.075945,-3.213953,-0.851577>,
< 0.065616,-2.508653,-0.834031>, < 1.071858,-1.914212,-0.123413>,
< 1.985852,-1.449771, 0.808126>, < 3.092587,-0.811997, 1.277883>,
< 4.136048,-0.015776, 1.002197>, < 4.793761, 0.788687, 0.172744>,
< 5.113845, 1.619735,-0.796812>, < 5.223641, 2.613483,-1.593565>,
< 5.105869, 3.762753,-2.082463>, < 4.741655, 4.941267,-2.225491>,
< 4.158380, 6.014504,-2.056144>, < 3.410543, 6.898988,-1.653115>,
< 2.545466, 7.565209,-1.104932>, < 1.589735, 8.006786,-0.487628>,
< 0.556642, 8.204578, 0.136588>, <-0.530154, 8.115784, 0.702583>,
<-1.610038, 7.697071, 1.132729>, <-2.579062, 6.948436, 1.343282>,
<-3.318657, 5.943788, 1.268312>, <-3.743752, 4.820837, 0.886020>,
<-3.838926, 3.719951, 0.241865>, <-3.635816, 2.669577,-0.508630>,
<-3.139474, 1.557260,-1.020126>, <-2.443744, 0.414370,-0.927344>,
<-1.817933,-0.541627,-0.182166>, <-1.337010,-1.335988, 0.835243>,
<-0.739645,-2.340104, 1.525124>, < 0.002875,-3.460928, 1.504919>,
< 0.744065,-4.316700, 0.798289>, < 1.437669,-4.792306,-0.241717>,
< 2.254095,-5.071448,-1.222172>, < 3.292771,-5.174067,-1.941563>,
< 4.470222,-5.026786,-2.322526>, < 5.631455,-4.614718,-2.360808>,
< 6.646206,-3.980400,-2.110378>, < 7.444022,-3.186837,-1.653913>,
< 8.006295,-2.288529,-1.072764>, < 8.334886,-1.320568,-0.433660>,
< 8.425275,-0.305020, 0.209963>, < 8.256194, 0.733390, 0.804404>,
< 7.801591, 1.750268, 1.286124>, < 7.058539, 2.672502, 1.578826>,
< 6.075425, 3.406780, 1.609930>, < 4.959652, 3.869359, 1.333446>,
< 3.848132, 4.023552, 0.758678>, < 2.805468, 3.892488,-0.013617>,
< 1.712558, 3.488661,-0.671862>, < 0.511712, 2.850887,-0.746566>,
<-0.551422, 2.256180,-0.099752>, <-1.439362, 1.805298, 0.860233>,
<-2.490268, 1.222023, 1.477536>, <-3.574405, 0.458235, 1.415859>,
<-4.359195,-0.356329, 0.752032>, <-4.765414,-1.160261,-0.193863>,
<-4.925987,-2.060961,-1.097754>, <-4.878932,-3.128615,-1.771419>,
<-4.592345,-4.291710,-2.125531>, <-4.068886,-5.415459,-2.144406>,
<-3.356408,-6.383153,-1.874568>, <-2.514992,-7.134712,-1.399228>,
<-1.588238,-7.657107,-0.803458>, <-0.596617,-7.948214,-0.159835>