//Torus and circles.bvr\n\n//Torus\ncyl=parametricSurface\ncyl.setMinMax=s,0,6.6\ncyl.setMinMax=t,0,6.6\ncyl.setEquation=x,((2+cos(t))*cos(s))\ncyl.setEquation=y,((2+cos(t))*sin(s))\ncyl.setEquation=z,((sin(t)))\ncyl.setSegmentCount=40\ncyl.color=grey\ncyl.spawn\n\n//Parametric curve \nhelix=parametricCurve \nhelix.setMinMax=t,0,6.6 \nhelix.setEquation=x,(2+cos(t)) \nhelix.setEquation=z,(sin(t)) \nhelix.setSegmentCount=70 \nhelix.setThickness=0.2 \nhelix.color=blue\nhelix.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.setSegmentCount=70 \ncircle.setThickness=0.2 \ncircle.color=red\ncircle.spawn\n