fixed dependencies

vendor/gonum.org/v1/plot/plotter/glyphbox.go

@@ -0,0 +1,41 @@
+// Copyright ©2015 The Gonum Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package plotter
+
+import (
+	"image/color"
+
+	"gonum.org/v1/plot"
+	"gonum.org/v1/plot/vg"
+	"gonum.org/v1/plot/vg/draw"
+)
+
+// GlyphBoxes implements the Plotter interface, drawing
+// all of the glyph boxes of the plot.  This is intended for
+// debugging.
+type GlyphBoxes struct {
+	draw.LineStyle
+}
+
+func NewGlyphBoxes() *GlyphBoxes {
+	g := new(GlyphBoxes)
+	g.Color = color.RGBA{R: 255, A: 255}
+	g.Width = vg.Points(0.25)
+	return g
+}
+
+func (g GlyphBoxes) Plot(c draw.Canvas, plt *plot.Plot) {
+	for _, b := range plt.GlyphBoxes(plt) {
+		x := c.X(b.X) + b.Rectangle.Min.X
+		y := c.Y(b.Y) + b.Rectangle.Min.Y
+		c.StrokeLines(g.LineStyle, []vg.Point{
+			{X: x, Y: y},
+			{X: x + b.Rectangle.Size().X, Y: y},
+			{X: x + b.Rectangle.Size().X, Y: y + b.Rectangle.Size().Y},
+			{X: x, Y: y + b.Rectangle.Size().Y},
+			{X: x, Y: y},
+		})
+	}
+}