Some documentation tweaks.

lib/morris.coffee

@@ -4,6 +4,7 @@ $ = jQuery
 
 # Very simple event-emitter class.
 #
+# @private
 class Morris.EventEmitter
   on: (name, handler) ->
     unless @handlers?
@@ -18,8 +19,9 @@ class Morris.EventEmitter
         handler(args...)
 
 # Make long numbers prettier by inserting commas.
-# eg: commas(1234567) -> '1,234,567'
 #
+# @example
+#   Morris.commas(1234567) -> '1,234,567'
 Morris.commas = (num) ->
   if num is null
     "n/a"
@@ -33,6 +35,8 @@ Morris.commas = (num) ->
       ret += strabsnum.slice(intnum.length)
     ret
 
-# zero-pad numbers to two characters wide
+# Zero-pad numbers to two characters wide.
 #
+# @example
+#   Morris.pad2(1) -> '01'
 Morris.pad2 = (number) -> (if number < 10 then '0' else '') + number

lib/morris.donut.coffee

@@ -1,3 +1,13 @@
+# Donut charts.
+#
+# @example
+#   Morris.Donut({
+#     el: $('#donut-container'),
+#     data: [
+#       { label: 'yin',  value: 50 },
+#       { label: 'yang', value: 50 }
+#     ]
+#   });
 class Morris.Donut
   colors: [
     '#0B62A4'
@@ -12,6 +22,8 @@ class Morris.Donut
     '#042135'
   ]
 
+  # Create and render a donut chart.
+  #
   constructor: (options) ->
     if not (this instanceof Morris.Donut)
       return new Morris.Donut(options)
@@ -34,12 +46,17 @@ class Morris.Donut
 
     @el.addClass 'graph-initialised'
 
-    # the raphael drawing instance
+    @redraw()
+
+  # Clear and redraw the chart.
+  #
+  # If you need to re-size your charts, call this method after changing the
+  # size of the container element.
+  redraw: ->
+    @el.clear()
+
     @r = new Raphael(@el[0])
 
-    @draw()
-
-  draw: ->
     cx = @el.width() / 2
     cy = @el.height() / 2
     w = (Math.min(cx, cy) - 10) / 3
@@ -71,11 +88,13 @@ class Morris.Donut
         break
       idx += 1
 
+  # @private
   select: (segment) =>
     s.deselect() for s in @segments
     segment.select()
     @setLabels segment.data.label, Morris.commas(segment.data.value)
 
+  # @private
   setLabels: (label1, label2) ->
     inner = (Math.min(@el.width() / 2, @el.height() / 2) - 10) * 2 / 3
     maxWidth = 1.8 * inner
@@ -90,6 +109,10 @@ class Morris.Donut
     text2scale = Math.min(maxWidth / text2bbox.width, maxHeightBottom / text2bbox.height)
     @text2.attr(transform: "S#{text2scale},#{text2scale},#{text2bbox.x + text2bbox.width / 2},#{text2bbox.y}")
 
+
+# A segment within a donut chart.
+#
+# @private
 class Morris.DonutSegment extends Morris.EventEmitter
   constructor: (@cx, @cy, @inner, @outer, p0, p1, @color, @data) ->
     @sin_p0 = Math.sin(p0)

lib/morris.line.coffee

@@ -1,7 +1,6 @@
 class Morris.Line
   # Initialise the graph.
   #
-  # @param {Object} options
   constructor: (options) ->
     if not (this instanceof Morris.Line)
       return new Morris.Line(options)
@@ -92,7 +91,7 @@ class Morris.Line
     xLabels: 'auto'
     xLabelFormat: null
 
-  # Pre-process data
+  # Update the data series and redraw the chart.
   #
   setData: (data, redraw = true) ->
     # shallow copy & sort data
@@ -168,6 +167,7 @@ class Morris.Line
 
   # Do any size-related calculations
   #
+  # @private
   calc: ->
     w = @el.width()
     h = @el.height()
@@ -201,17 +201,21 @@ class Morris.Line
 
   # quick translation helpers
   #
+  # @private
   transX: (x) =>
     if @xvals.length is 1
       @left + @width / 2
     else
      @left + (x - @xmin) * @dx
 
+  # @private
   transY: (y) =>
     return @options.marginTop + @height - (y - @ymin) * @dy
 
-  # Clear and redraw the graph
+  # Clear and redraw the chart.
   #
+  # If you need to re-size your charts, call this method after changing the
+  # size of the container element.
   redraw: ->
     @r.clear()
     @calc()
@@ -222,6 +226,7 @@ class Morris.Line
 
   # draw the grid, and axes labels
   #
+  # @private
   drawGrid: ->
     # draw y axis labels, horizontal lines
     firstY = @ymin
@@ -271,6 +276,7 @@ class Morris.Line
 
   # draw the data series
   #
+  # @private
   drawSeries: ->
     for i in [@seriesCoords.length-1..0]
       coords = $.map(@seriesCoords[i], (c) -> c)
@@ -293,6 +299,7 @@ class Morris.Line
 
   # create a path for a data series
   #
+  # @private
   createPath: (coords, top, left, bottom, right) ->
     path = ""
     if @options.smooth
@@ -317,6 +324,7 @@ class Morris.Line
 
   # calculate a gradient at each point for a series of points
   #
+  # @private
   gradients: (coords) ->
     $.map coords, (c, i) ->
       if i is 0
@@ -328,6 +336,7 @@ class Morris.Line
 
   # draw the hover tooltip
   #
+  # @private
   drawHover: ->
     # hover labels
     @hoverHeight = @options.hoverFontSize * 1.5 * (@series.length + 1)
@@ -351,6 +360,7 @@ class Morris.Line
       @yLabels.push(yLabel)
       @hoverSet.push(yLabel)
 
+  # @private
   updateHover: (index) =>
     @hoverSet.show()
     @xLabel.attr('text', @columnLabels[index])
@@ -375,9 +385,11 @@ class Morris.Line
     xloc = Math.max @left + maxLabelWidth / 2 + @options.hoverPaddingX, xloc
     @hoverSet.attr 'transform', "t#{xloc},#{yloc}"
 
+  # @private
   hideHover: ->
     @hoverSet.hide()
 
+  # @private
   hilight: (index) =>
     if @prevHilight isnt null and @prevHilight isnt index
       for i in [0..@seriesPoints.length-1]
@@ -392,6 +404,7 @@ class Morris.Line
     if index is null
       @hideHover()
 
+  # @private
   updateHilight: (x) =>
     x -= @el.offset().left
     for hoverIndex in [@hoverMargins.length..0]
@@ -399,17 +412,20 @@ class Morris.Line
         @hilight hoverIndex
         break
 
+  # @private
   measureText: (text, fontSize = 12) ->
     tt = @r.text(100, 100, text).attr('font-size', fontSize)
     ret = tt.getBBox()
     tt.remove()
     return ret
 
+  # @private
   yLabelFormat: (label) ->
     "#{@options.preUnits}#{Morris.commas(label)}#{@options.postUnits}"
 
 
-# parse a date into a javascript timestamp
+# Parse a date into a javascript timestamp
+#
 #
 Morris.parseDate = (date) ->
   if typeof date is 'number'
@@ -497,6 +513,7 @@ Morris.parseDate = (date) ->
 
 # generate a series of label, timestamp pairs for x-axis labels
 #
+# @private
 Morris.labelSeries = (dmin, dmax, pxwidth, specName, xLabelFormat) ->
   ddensity = 200 * (dmax - dmin) / pxwidth # seconds per `margin` pixels
   d0 = new Date(dmin)
@@ -523,12 +540,14 @@ Morris.labelSeries = (dmin, dmax, pxwidth, specName, xLabelFormat) ->
     spec.incr(d)
   return ret
 
+# @private
 minutesSpecHelper = (interval) ->
   span: interval * 60 * 1000
   start: (d) -> new Date(d.getFullYear(), d.getMonth(), d.getDate(), d.getHours())
   fmt: (d) -> "#{Morris.pad2(d.getHours())}:#{Morris.pad2(d.getMinutes())}"
   incr: (d) -> d.setMinutes(d.getMinutes() + interval)
 
+# @private
 secondsSpecHelper = (interval) ->
   span: interval * 1000
   start: (d) -> new Date(d.getFullYear(), d.getMonth(), d.getDate(), d.getHours(), d.getMinutes())