Method Thumbnail

plotter/barchart.go:198–211

Thumbnail fulfills the plot.Thumbnailer interface.

(c *draw.Canvas)

// Thumbnail fulfills the plot.Thumbnailer interface.
func (b *BarChart) Thumbnail(c *draw.Canvas) {
	pts := []vg.Point{
		{X: c.Min.X, Y: c.Min.Y},
		{X: c.Min.X, Y: c.Max.Y},
		{X: c.Max.X, Y: c.Max.Y},
		{X: c.Max.X, Y: c.Min.Y},
	}
	poly := c.ClipPolygonY(pts)
	c.FillPolygon(b.Color, poly)

	pts = append(pts, vg.Point{X: c.Min.X, Y: c.Min.Y})
	outline := c.ClipLinesY(pts)
	c.StrokeLines(b.LineStyle, outline...)
}