//Torus_with_circle.bvr\n\n//Parametric surface\ntorus=parametricSurface\ntorus.setMinMax=t,0,6.6\ntorus.setMinMax=s,0,6.6\ntorus.setEquation=x,((2+cos(t))*cos(s))\ntorus.setEquation=y,((2+cos(t))*sin(s))\ntorus.setEquation=z,(sin(t))\ntorus.setSegmentCount=30\ntorus.color=cyan\ntorus.spawn\n\n//Parametric curve\nlittlecircle=parametricCurve\nlittlecircle.setMinMax=t,0,6.6\nlittlecircle.setEquation=x,(2+cos(t))\nlittlecircle.setEquation=y,(0)\nlittlecircle.setEquation=z,(sin(t))\nlittlecircle.setSegmentCount=70\nlittlecircle.setThickness=0.15\nlittlecircle.color=yellow\nlittlecircle.spawn\n\n//Parametric curve\nbigcircle=parametricCurve\nbigcircle.setMinMax=t,0,6.6\nbigcircle.setEquation=x,(3*cos(t))\nbigcircle.setEquation=y,(3*sin(t))\nbigcircle.setEquation=z,(0)\nbigcircle.setSegmentCount=70\nbigcircle.setThickness=0.15\nbigcircle.color=magenta\nbigcircle.spawn