Not able to display Month names on Rickshaw Graph on Coffeescript

Question

I am working on a project using Sinatra based framework called Dashing. Part of my project is to create a graph using RickShaw Graph. My problem is that I am not able to display month names and dates on the X-Axis. I am using coffeescript to render these values. Here is the code for the graph:

class Dashing.Graph extends Dashing.Widget



@accessor 'points', Dashing.AnimatedValue

  @accessor 'current', ->
    return @get('displayedValue') if @get('displayedValue')
    points = @get('points')
    if points
      points[points.length - 1].y

#ready is triggered when ever the page is loaded.
  ready: ->
    container = $(@node).parent()
    # Gross hacks. Let's fix this.
    width = (Dashing.widget_base_dimensions[0] * container.data("sizex")) + Dashing.widget_margins[0] * 2 * (container.data("sizex") - 1)
    height = (Dashing.widget_base_dimensions[1] * container.data("sizey"))
    @graph = new Rickshaw.Graph(
      element: @node
      width: width
      height: height
      renderer: @get("graphtype")
      series: [
        {
        color: "#fff",
        data: [{x:0, y:0}]
        }
      ]
    )

    @graph.series[0].data = @get('points') if @get('points')
    time = new Rickshaw.Fixtures.Time()
    days = time.unit("day")

    x_axis = new Rickshaw.Graph.Axis.Time(
      graph: @graph
      timeUnit: days
    )
    y_axis = new Rickshaw.Graph.Axis.Y(graph: @graph, tickFormat: Rickshaw.Fixtures.Number.formatKMBT)
    @graph.render()

From what I understood from the Rickshaw Graph API available here:

https://github.com/shutterstock/rickshaw/blob/master/src/js/Rickshaw.Fixtures.Time.js

it says that you can specify the unit name. So for this instance I used "day" just for testing reasons, but this doesnt seem to be working. Any help would be great.

Answer 1

You can specify a timeFixture which drives how the ticks on the x-axis should be labelled.

var xAxis = new Rickshaw.Graph.Axis.Time( {
  graph: graph,
  timeFixture: new Rickshaw.Fixtures.Time.Local()
} );

The fixture takes care of the time range being displayed and triggers the appropriate level of detail fo the date/time formatting, e.g. zooming in from years to hours.

You could also create your own 'time fixture' and set it there, take a look at Rickshaw.Fixtures.Time or Rickshaw.Fixtures.Time.Local

Alternatively, specify the fixed spacing aka 'unit's you always want to display:

var timeFixture = new Rickshaw.Fixtures.Time();
var unitHour = timeFixture.unit('hour');
var xAxis = new Rickshaw.Graph.Axis.Time( {
  graph: graph,
  timeUnit: unitHour,
  timeFixture: timeFixture
} );