Hi!
Well… Building the list of coordinate is not a big deal :-)
{ 5 . 1 . 2 . 5 } withIndexCollect: [ :v :index | v @ index ]
Alexandre
--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
> On Jun 17, 2015, at 7:04 AM, Luc Fabresse <[email protected]> wrote:
>
> Hi Alex,
>
> Thanks for your answer.
> I misunderstood RTStackedDataSet.
> To me, it does not do what the doc says ;-)
>
> I want to do exactly that:
>
> c := RTGrapher new.
> ds := RTDataSet new.
> ds dotShape color: Color red.
> ds points: {5@1 . 1@2 . 20@3 . 5@4 }.
> ds x: [ :e | e y ].
> ds y: [ :e | e x ].
> c add: ds.
> c axisX noDecimal.
> c axisY noDecimal.
> c build.
> c view inspect.
>
> But I would like to not write by hand (or compute) the X values in the data
> set which are the indexes of the element.
>
> Thanks,
>
> #Luc
>
> 2015-06-16 22:39 GMT+02:00 Alexandre Bergel <[email protected]
> <mailto:[email protected]>>:
> Hi Luc!
>
> This is something that is not really intuitive in Roassal. I am not sure
> whether this is a bug, but until now, we usually disable the labels on the
> X-axis.
>
> So, your script should be
> -=-=-=-=-=-=-=-=-=-=-=-=
> b := RTGrapher new.
> ds := RTStackedDataSet new.
> ds dotShape color: Color red.
> ds points: #(5 1 20 5).
> ds y: #yourself.
> b add: ds.
> b axisX noLabel; noTick.
> b axisY noDecimal.
> b
> -=-=-=-=-=-=-=-=-=-=-=-=
> <Screen Shot 2015-06-16 at 5.37.44 PM.png>
>
> If you need ticks and labels, you can simply do:
> -=-=-=-=-=-=-=-=-=-=
> b := RTGrapher new.
> ds := RTStackedDataSet new.
> ds barShape width: 10.
> ds barChartWithBarCenteredTitle: #yourself.
> ds points: #(5 1 20 5).
> ds y: #yourself.
> b add: ds.
> b axisX noLabel; noTick.
> b axisY noDecimal.
>
> b
> -=-=-=-=-=-=-=-=-=-=
> <Screen Shot 2015-06-16 at 5.39.28 PM.png>
>
> I hope this solves your problem.
>
> Cheers,
> Alexandre
>
>
>> On Jun 15, 2015, at 6:20 PM, Luc Fabresse <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> Hi,
>>
>> The doc here [1] says: "Data points may be stacked, meaning that the index
>> of the point in the collection is its X value."
>>
>> When I use the same example as in the doc but with labels and ticks:
>>
>> b := RTGrapher new.
>> ds := RTStackedDataSet new.
>> ds dotShape color: Color red.
>> ds points: #(5 1 20 5).
>> ds y: #yourself.
>> b add: ds.
>> b axisX noDecimal.
>> b axisY noDecimal.
>> b build.
>> b view inspect
>>
>> it seems that y values are not aligned on x ones (i.e. I would expect the
>> first red point to be 1@5). Is it a bug or did I misunderstood something?
>>
>>
>> <Screen Shot 2015-06-15 at 23.18.36.png>
>>
>>
>> [1]
>> https://dl.dropboxusercontent.com/u/31543901/AgileVisualization/Grapher/0202-
>>
>> <https://dl.dropboxusercontent.com/u/31543901/AgileVisualization/Grapher/0202->Grapher.html
>>
>>
>> Thanks,
>>
>> #Luc
>
> --
> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
> Alexandre Bergel http://www.bergel.eu <http://www.bergel.eu/>
> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>
>
>
>
