From 7b5bb6e952ce4c38c09067fc937a0d2ad6e2be2b Mon Sep 17 00:00:00 2001
From: Will Charczuk <will@clotheshor.se>
Date: Sat, 30 Jul 2016 23:14:19 -0700
Subject: [PATCH] changing how `Draw.LineSeries` handles the 0 line

---
 draw.go | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/draw.go b/draw.go
index 890fad4..25ca38c 100644
--- a/draw.go
+++ b/draw.go
@@ -22,12 +22,14 @@ func (d draw) LineSeries(r Renderer, canvasBox Box, xrange, yrange Range, style
 	x0 := cl + xrange.Translate(v0x)
 	y0 := cb - yrange.Translate(v0y)
 
+	yv0 := yrange.Translate(0)
+
 	var vx, vy float64
 	var x, y int
 
 	fill := style.GetFillColor()
 	if !fill.IsZero() {
-		r.SetFillColor(fill)
+		style.GetFillOptions().WriteToRenderer(r)
 		r.MoveTo(x0, y0)
 		for i := 1; i < vs.Len(); i++ {
 			vx, vy = vs.GetValue(i)
@@ -35,9 +37,9 @@ func (d draw) LineSeries(r Renderer, canvasBox Box, xrange, yrange Range, style
 			y = cb - yrange.Translate(vy)
 			r.LineTo(x, y)
 		}
-		r.LineTo(x, cb)
-		r.LineTo(x0, cb)
-		r.Close()
+		r.LineTo(x, Math.MinInt(cb, cb-yv0))
+		r.LineTo(x0, Math.MinInt(cb, cb-yv0))
+		r.LineTo(x0, y0)
 		r.Fill()
 	}