[Moose-dev] Re: GraphET2 pie chart example and question

Hi,

I have the Moose 5.0 beta and the code using RTPieBuilder is not working properly showed below. There is any way to update Roassal to support this?

Cheers,

Offray

On 08/04/2014 03:07 AM, Usman Bhatti wrote:

Thank you Alex for Pie chart support in Charter.

On Sun, Aug 3, 2014 at 3:10 AM, Alexandre Bergel <alexandre.bergel@me.com mailto:alexandre.bergel@me.com> wrote:

 Hi Hernán,

 I did a bit of programming today and did a PieBuilder. Here are some example:
 -=-=-=-=-=-=-=-=-=
 b := RTPieBuilder new.
 b interaction popup.
 b objects: RTShape withAllSubclasses.
 b slice: #numberOfMethods.
 b globalRule distinctColor.
 b labelledIf: [ :c | c numberOfMethods > 18 ].
 b view
 -=-=-=-=-=-=-=-=-=


 -=-=-=-=-=-=-=-=-=
 | b |
 b := RTPieBuilder new.
 b interaction popup.
 b objects: (Array with: Dictionary with: Collection with: Set with:
 OrderedCollection ).
 b slice: #numberOfMethods.
 b globalRule distinctColor.
 b labelled.
 b emphasize: Set by: 20.
 b emphasize: Dictionary by: 20.
 b open.
 -=-=-=-=-=-=-=-=-=


 Some example have been added to the Roassal example browser, available from
 the World menu.


 This is just a beginning. I made these example without a clear scenario in
 mind. If you come with a specific need, probably you will be able to adjust
 the PieBuilder. For example, you may want to particularize the position of
 the labeling

 Cheers,
 Alexandre


 On Jul 28, 2014, at 6:29 PM, Hernán Morales Durand <hernan.morales@gmail.com
 <mailto:hernan.morales@gmail.com>> wrote:

...

Thanks Alex,

I did not finished reading the chapter about RTBuilder yet. But regardless
of the GraphET2 scope, having a pie diagram builder is important for Pharo
(I don't know the status of PieChartMorph but I will check).

I have tried two different directions. One is adding a RTLabel to each
sector shape in #getElementsFromModels

GET2PieDiagram>>getElementsFromModels

   ...
            label := RTLabel new text: model key.
            shape := shape + label.
   ...

| diag |
diag := GET2DiagramBuilder new.
(diag pieDiagram)
    function: #value;
    models: {'A' -> 30 . 'B' -> 10 . 'C' -> 20 . 'D' -> 40};
    color: [ Color random ].
^ diag open.


Another one is using #modelLabels: to add labels to axis:

| diag |
diag := GET2DiagramBuilder new.
(diag pieDiagram)
    modelLabels: #key;
    function: #value;
    models: {'A' -> 30 . 'B' -> 10 . 'C' -> 20 . 'D' -> 40};
    color: [ Color random ].
^ diag open.

but none of them positions the labels nicely. If anyone wants to comment
would be very welcome :)
Cheers,

Hernán




2014-07-26 14:14 GMT-03:00 Alexandre Bergel <alexandre.bergel@me.com
<mailto:alexandre.bergel@me.com>>:
Hi Hernán,

Thanks for your effort. This is very valuable.
However, I am not sure a pie diagram should be part of GraphET. A pie is
radically different from a curve. Maybe subclassing the class RTBuilder is
the way to go. You will then not be constraint by GraphET for the labeling...

Cheers,
Alexandre


On Jul 25, 2014, at 8:41 PM, Hernán Morales Durand
<hernan.morales@gmail.com <mailto:hernan.morales@gmail.com>> wrote:

> Hello
>
> I am trying GET2 pieDiagram builder. You may want to add a random color
in the #pieExample method so it looks nicer (see attachment):
>
> | diag |
> diag := GET2DiagramBuilder new.
> (diag pieDiagram)
>     models: #(30 10 20 40);
>     color: [ Color random ].
> ^ diag open.
>
> Now my question is simple, but I don't know how to start
>
> How would you add labels to each sector?
>
> Hernán
>
>
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Alexandre Bergel http://www.bergel.eu
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 --
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 ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.




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