 
     console.log """
                    zoomLevel: #{@zoomLevel}
-                 sliderValue: #{@sliderValue}   
-                   zoomRange: #{@zoomRanges[@zoomLevel]}    
+                 sliderValue: #{@sliderValue}
+                   zoomRange: #{@zoomRanges[@zoomLevel]}
                   zooming to: [#{@sliderValue},#{@sliderValue+@zoomRanges[@zoomLevel]}]
 
     """

    @smallestY = Math.min @data.y...
    @largestX = Math.max  @data.x...
    @largestY = Math.max  @data.y...

    @plotPoints()



    # this step is necessary or (top) x-axis breaks
    @smallestX = Math.min @data_raw.x...
    @smallestX = Math.min(@smallestX, @data.metadata.start_time)

    @originalMin = @smallestX
    for x, i in [@data.x...]
      @data.x[i] = x - @smallestX
