ko.computed =>

      dependOn = [@viewState.zoomSpec.t1(), @viewState.zoomSpec.t2()]

      pxPerTick = 50

      axis = d3.axisTop(@viewState.zoomInX).ticks(@viewState.width() / pxPerTick)

      d3.select(@$.axis).call(axis)

)

# Maintains a pixi object, some adjusters, and inlineattrs corresponding to a note

# in the graph.

class Note

  constructor: (@parentElem, @container, @project, @graph, @selection, @uri, @setAdjuster, @song, @viewState, @rowTopY, @rowBotY) ->

    ko.computed @draw.bind(@)

  destroy: ->

    log('destroy', @uri.value)

    @isDetached = true

    @clearAdjusters()

    @parentElem.updateInlineAttrs(@uri, null)

  clearAdjusters: ->

    for i in @adjusterIds.keys()

      @setAdjuster(i, null)

    @adjusterIds.clear()