func (s *SparkLines) Plot(da plot.DrawArea, plt *plot.Plot) {
trX, trY := plt.Transforms(&da)
w := vg.Length(1)
da.SetLineWidth(w)
_, _, ymin, ymax := s.DataRange()
for _, d := range s.XYs {
perc := float64(d.Y-ymin) / float64(ymax-ymin)
c := BrightColorGradient.GetInterpolatedColorFor((perc*-1+1)*0.5 + 0.6)
da.SetColor(c)
// Transform the data x, y coordinate of this bubble
// to the corresponding drawing coordinate.
x := trX(d.X)
y := trY(d.Y * 0.9)
//rad := vg.Length(10)
var p vg.Path
p.Move(x-w, y)
p.Line(x-w, 0)
//p.Close()
da.Stroke(p)
//da.StrokeLine2(*sty, x, 0, x, y)
}
}