//ChangeFileNameHere.bvr\n\n//Parametric surface\nt=parametricSurface\nt.setMinMax=s,0,6.5\nt.setMinMax=t,0,6.5\nt.setEquation=x,((2+1*cos(s))*cos(t))\nt.setEquation=y,((2+1*cos(s))*sin(t))\nt.setEquation=z,(sin(s))\nt.setSegmentCount=20 \nt.spawn\n\n//Parametric curve\nhelix=parametricCurve\nhelix.setMinMax=t,-5,5\nhelix.setEquation=x,(sin(t)+sin(t)+sin(t))\nhelix.setEquation=y,(cos(t)+cos(t)+cos(t))\nhelix.setEquation=z,(0)\nhelix.setSegmentCount=70\nhelix.setThickness=0.15\nhelix.color=red\nhelix.spawn\n\nh=parametricCurve\nh.setMinMax=t,-5,5\nh.setEquation=x,(sin(t)+sin(t)/18+2)\nh.setEquation=y,(0)\nh.setEquation=z,(cos(t)+cos(t)/18)\nh.setSegmentCount=90\nh.setWidth=0.15,0.1\nh.color=blue\nh.spawn\n\n\n//Text\ntxt=text\ntxt.text=two circles on a torus\ntxt.color=green\ntxt.position=0,0,3\n