//ExampleSurface.bvr\n\n//Parametricsurface\ncyl=parametricSurface\ncyl.setMinMax=s,-1,1\ncyl.setMinMax=t,0,6.6\ncyl.setEquation=x,((3+s*cos(.5*t))*(cos(t))\ncyl.setEquation=y,((3+s*cos(.5*t))*(sin(t))\ncyl.setEquation=z,(s*sin(.5*t))\ncyl.setSegmentCount=20\ncyl.color=blue\ncyl.spawn