nl_tokens: draw single cubic bezier curve
pl_tokens: function single_curve ( d , ctx ) { var centroids = compute_centroids ( d ) ; var cps = compute_control_points ( centroids ) ; ctx . moveTo ( cps [ 0 ] . e ( 1 ) , cps [ 0 ] . e ( 2 ) ) ; for ( var i = 1 ; i < cps . <mask> ; i += 3 ) { if ( __ . showControlPoints ) { for ( var j = 0 ; j < 3 ; j ++ ) { ctx . fillRect ( cps [ i + j ] . e ( 1 ) , cps [ i + j ] . e ( 2 ) , 2 , 2 ) ; } } ctx . bezierCurveTo ( cps [ i ] . e ( 1 ) , cps [ i ] . e ( 2 ) , cps [ i + 1 ] . e ( 1 ) , cps [ i + 1 ] . e ( 2 ) , cps [ i + 2 ] . e ( 1 ) , cps [ i + 2 ] . e ( 2 ) ) ; } }