Method data

lib/plot/plot.go:269–319

See http://dygraphs.com/data.html

()

// See http://dygraphs.com/data.html
func (p *Plot) data() (dataPoints, []string, error) {
	var (
		series []*timeSeries
		count  int
	)

	for _, as := range p.series {
		for _, s := range as.series {
			if s != nil {
				series = append(series, s)
				count += s.len
			}
		}
	}

	var (
		size   = 1 + len(series)
		nan    = math.NaN()
		labels = make([]string, size)
		data   = make(dataPoints, 0, count)
	)

	labels[0] = "Seconds"

	sort.Slice(series, func(i, j int) bool {
		return series[i].attack+series[i].label <
			series[j].attack+series[j].label
	})

	for i, s := range series {
		points, err := lttb.Downsample(s.len, p.threshold, s.iter())
		if err != nil {
			return nil, nil, err
		}

		for _, p := range points {
			pt := make([]float64, size)
			for j := range pt {
				pt[j] = nan
			}
			pt[0], pt[i+1] = p.X, p.Y
			data = append(data, pt)
		}

		labels[i+1] = s.attack + ": " + s.label
	}

	sort.Stable(data)

	return data, labels, nil
}

func asset(path string) ([]byte, error) {
	file, err := Assets.Open(path)