func (ig *ImageGraphics) Line(x0, y0, x1, y1 int, style chart.Style) {
if style.LineWidth <= 0 {
style.LineWidth = 1
}
ig.setStyle(style)
ig.gc.MoveTo(float64(x0), float64(y0))
ig.gc.LineTo(float64(x1), float64(y1))
ig.gc.Stroke()
}
func (g *TextGraphics) Boxes(boxes []chart.Box, width int, style chart.Style) {
if width%2 == 0 {
width += 1
}
hbw := (width - 1) / 2
if style.Symbol == 0 {
style.Symbol = '*'
}
for _, box := range boxes {
x := int(box.X)
q1, q3 := int(box.Q1), int(box.Q3)
g.tb.Rect(x-hbw, q1, 2*hbw, q3-q1, 0, ' ')
if !math.IsNaN(box.Med) {
med := int(box.Med)
g.tb.Put(x-hbw, med, '+')
for i := 0; i < hbw; i++ {
g.tb.Put(x-i, med, '-')
g.tb.Put(x+i, med, '-')
}
g.tb.Put(x+hbw, med, '+')
}
if !math.IsNaN(box.Avg) && style.Symbol != 0 {
g.tb.Put(x, int(box.Avg), rune(style.Symbol))
}
if !math.IsNaN(box.High) {
for y := int(box.High); y < q3; y++ {
g.tb.Put(x, y, '|')
}
}
if !math.IsNaN(box.Low) {
for y := int(box.Low); y > q1; y-- {
g.tb.Put(x, y, '|')
}
}
for _, ol := range box.Outliers {
y := int(ol)
g.tb.Put(x, y, rune(style.Symbol))
}
}
}