Hi Demian,

Thanks for your question. This part of Grapher is not well documented, so no surprise that you bump into this.

Consider the slightly adapted example. Does this help you?

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

    b := RTGrapher new.

    b extent: 300 @ 200.

    

    ds := RTStackedDataSet new.

    ds points: { { 'value 1'. 2} . 

 {'value 2' . 2.3} .

  { 'value 3' . 1.2 } }.

    ds y: #second.

    ds barShape width: 40.

ds histogramWithBarTitle: #first rotation: -45.

    b add: ds.

 

b axisX noLabel; noTick.  

    b build.

    ^ b view

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Cheers,

Alexandre

-- 
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

On Apr 7, 2015, at 6:38 PM, Demian Schkolnik <demianschkolnik@gmail.com> wrote:

Hi all! I want to make a little graph of a vector, with bars:

| b ds labels |
    b := RTGrapher new.
    b extent: 300 @ 200.
    
    ds := RTStackedDataSet new.
    ds points: { 2 . 2.3 . 1.2 }.
    
    ds barShape width: 40.
    b add: ds.
    labels := #(x y z - -).
    b axisX numberOfLabels:labels size-1.
    b axisX numberOfTicks:labels size-1.
    b axisX labelConvertion: [ :item | labels at:item +1].
    b build.
    ^ b view

The code above writes the x 2 times. I just want an x, y and z under each one of the bars. Also, I havo to do the 'item+1' thing because it somehow starts at 0, and smalltalk arrays start at 1...

Thanks!

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