//torus and circle.bvr\n \n// Parametric curve\nhelix=parametricSurface\nhelix.setMinMax=s,0,7\nhelix.setMinMax=t,0,7\nhelix.setEquation=x,((2+cos(t))*cos(s))\nhelix.setEquation=y,((2+cos(t))*sin(s))\nhelix.setEquation=z,(sin(t))\nhelix.setSegmentCount=20\nhelix.color=green\nhelix.spawn \n\n// Parametric curve \ncircle=parametricCurve\ncircle.setMinMax=t,0,7\ncircle.setEquation=x,(0)\ncircle.setEquation=y,(sin(t)+2)\ncircle.setEquation=z,(cos(t))\ncircle.setSegmentCount=70\ncircle.setThickness=0.2\ncircle.color=blue\ncircle.spawn\n\n//Parametric Curve\ncirc=parametricCurve\ncirc.setMinMax=t,0,7\ncirc.setEquation=x,(3*cos(t))\ncirc.setEquation=y,(3*sin(t))\ncirc.setEquation=z,(0.4)\ncirc.setSegmentCount=70\ncirc.setThinckness=0.1\ncirc.color=red\ncirc.spawn\n