Hi Offray,

You can add ticks as follows:

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
c := (1 to: 100) collect: [ :i | 50 atRandom @ 50 atRandom ].

g := RTGrapher new.
d := RTData new.
d points: c.
d x: #x.
d y: #y.
g add: d.
g axisX noTick.
g axisY noTick.

g addDecorator: (RTVerticalValuesDecorator new addAll: #(10 25)).
g addDecorator: (RTHorizontalValuesDecorator new addAll: #(10 25)).
g
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

For the legend, there is actually no such a support. However, it should be easy 
to add a new rule, as a subclass of RTLegendItem

Cheers,
Alexandre

> On May 6, 2018, at 9:13 AM, Offray Vladimir Luna Cárdenas 
> <offray.l...@mutabit.com> wrote:
> 
> Hi,
> 
> Here is the improved version:
> 
> <iiboahmkfajnlmam.png>
> 
> As you can see, now I coded colored years functionality (I thought that 
> colored histograms, following a criteria, would be supported by default, but 
> I was unable to find any documentation or example about it). Two questions 
> remain:
> 
>       • How can I add ticks in the X axis, so they correspond to a particular 
> criteria? For example, a change in the year?
>       • There is any way to make the RTLegend puts the color labels in a 
> "matrix alike" fashion? So, for example, I would like to say that instead of 
> having the default 1xn column of color labels, as now, I want them organized 
> over a nxm matrix, so they suit better different graphical objects and 
> layouts.
> Thanks,
> 
> Offray
> 
> On 26/04/18 14:31, Offray Vladimir Luna Cárdenas wrote:
>> Hi,
>> 
>> I'm making a histogram of files that have the naming convention YYYY_MM.js, 
>> for year and month info. The image below shows what I get until now:
>> 
>> <pgoajgjcjaoiebgb.png>
>> 
>> By the way, you can run this example by loading and updating the Dataviz 
>> package [2] from [3]
>> 
>> [2] 
>> http://mutabit.com/repos.fossil/grafoscopio/doc/tip/Packages/Dataviz/readme.html
>> [3] http://ws.stfx.eu/OUEYE943HV3Q
>> I would like to have bars for every year of a file name in a different color 
>> (I imagine that using #distinctColorUsing: ) and ticks on each year. I'm 
>> seeing some examples in the image and in 
>> http://agilevisualization.com/AgileVisualization/Roassal/0104-Roassal.html, 
>> but I wonder if there is a more mature and already existing RTObject for 
>> this kind of work. Also I would like to show Y axis scale using size of 
>> files in a human friendly format (160 Kb instead of 160000.0 and so on).
>> 
>> Any help or pointers on this is greatly appreciated.
>> 
>> Cheers,
>> 
>> Offray
>> 
> 


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