Function getBoundaryValues

plot.go:245–278

(data *DataTable, index int)

}

func getBoundaryValues(data *DataTable, index int) (maxX, minX, maxY, minY float64) {
	maxX = math.Inf(-1)
	minX = math.Inf(1)
	maxY = math.Inf(-1)
	minY = math.Inf(1)

	for _, r := range data.rows {
		maxX = math.Max(maxX, r[0])
		minX = math.Min(minX, r[0])

		for idx, c := range r {
			if idx > 0 {
				if index == -1 || index == idx {
					maxY = math.Max(maxY, c)
					minY = math.Min(minY, c)
				}
			}
		}
	}

	if maxY > 0 {
		maxY = maxY * 1.1
	} else {
		maxY = maxY * 0.9
	}

	if minY > 0 {
		minY = minY * 0.9
	} else {
		minY = minY * 1.1
	}

	return
}

// DataTable can contain data for multiple graphs, we need to extract only 1
func getChartData(data *DataTable, index int) (out [][]float64) {