src/dygraph-canvas.js
function(ctx, baselineX, baselineY, pathBack) {
    ctx.lineTo(baselineX, baselineY);
    if (stackedGraph) {
      for (var i = pathBack.length - 1; i >= 0; i--) {
        var pt = pathBack[i];
        ctx.lineTo(pt[0], pt[1]);
      }
    }
  }
function(ctx, baselineX, baselineY, pathBack) {
    ctx.lineTo(baselineX, baselineY);
    if (stackedGraph) {
      for (var i = pathBack.length - 1; i >= 0; i--) {
        var pt = pathBack[i];
        ctx.lineTo(pt[0], pt[1]);
      }
    }
  }
function ( ctx , baselineX , baselineY , pathBack ) { ctx . lineTo ( baselineX , baselineY ) ; if ( stackedGraph ) { for ( var i = pathBack . length - 1 ; i >= 0 ; i -- ) { var pt = pathBack [ i ] ; ctx . lineTo ( pt [ 0 ] , pt [ 1 ] ) ; } } }
for different line drawing modes (line/step) per series Helper function to trace a line back along the baseline.
for different line drawing modes ( line / step ) per series Helper function to trace a line back along the baseline .