private def durationTicks()

in atlas-chart/src/main/scala/com/netflix/atlas/chart/graphics/Ticks.scala [532:570]

• 36 lines of code
• 8 McCabe index (conditional complexity)

  private def durationTicks(
    v1: Double,
    v2: Double,
    t: (Double, Double, Int),
    prevPrefix: UnitPrefix = null
  ): List[ValueTick] = {
    val (major, minor, minorPerMajor) = t
    val ticks = List.newBuilder[ValueTick]
    val prefix = if (prevPrefix == null) getDurationPrefix(math.abs(v2), major) else prevPrefix
    val labelFmt = durationLabelFormat(prefix, v2)

    val base = round(v1, major)
    val end = ((v2 - base) / minor).toInt + 1
    var pos = 0
    while (pos <= end) {
      val v = base + pos * minor
      if (v >= v1 && v <= v2) {
        val label = prefix.format(v, labelFmt)
        ticks += ValueTick(v, 0.0, pos % minorPerMajor == 0, Some(label))
      }
      pos += 1
    }
    val ts = ticks.result()

    val useOffset = majorLabelDuplication(ts)
    if (useOffset) {
      if (prevPrefix == null && v2 < (year.factor * 2) && v2 > 1e-3) {
        val previousPrefix = prevDurationPrefix(prefix)
        return durationTicks(v1, v2, t, previousPrefix)
      }
      val range = v2 - v1
      val offsetPrefix = getDurationPrefix(range, major)
      val newFormat = durationLabelFormat(prefix, major)

      ts.map(t =>
        t.copy(offset = base, labelOpt = Some(offsetPrefix.format(t.v - base, newFormat)))
      )
    } else ts
  }