(l1tol2,t) >>> l1,          // move between lines
      0x882288,lerp(P1toP2,t) >>> P1,          // move between points.
      0x224488,[P1,R >>> P2],"R",              // R applied to P2
      0x008844,P1,"P1",P2,"P2",                // our two points.   
      0x008844,p1*0.3,"p1",p2*0.3,"p2",        // our two planes.
      0x228844,l1,"l1",l2,"l2",                // our two lines.
    ];
  },{grid:true, labels:true,lineWidth:3, h:-0.4, p:-0.1, scale:1.4, animate:true}));

});
</SCRIPT></BODY>