//Nina.bvr\n\n//Parametric surface\ntorus=parametricSurface\ntorus.setMinMax=s,0,6.5\ntorus.setMinMax=t,0,6.5\ntorus.setEquation=x, ((2+cos(t))*cos(s))\ntorus.setEquation=y, ((2+cos(t))*sin(s))\ntorus.setEquation=z,(sin(t))\ntorus.setSegmentCount=20\ntorus.setThickness=0.2\ntorus.color=black\ntorus.spawn\n\n//Parametric curve\ncircle=parametricCurve\ncircle.setMinMax=t, 0,6.6\ncircle.setEquation=x, (3*cos(t))\ncircle.setEquation=y, (3*sin(t))\ncircle.setEquation=z, (0)\ncircle.setSegmentCount=70\ncircle.setThickness=0.15\ncircle.color=red\ncircle.spawn\n\n//Parametric curve\ncircle2=parametricCurve\ncircle2.setMinMax=t, 0,6.6\ncircle2.setEquation=x, (2+cos(t))\ncircle2.setEquation=y, (0)\ncircle2.setEquation=z, (sin(t))\ncircle2.setSegmentCount=20\ncircle2.setThickness=0.15\ncircle2.color=blue\ncircle2.spawn\n