Hackathon question (kind of urgent): Adding labels to a treemap

Hi,

We're in our local Open Data Day hackathon, creating a treemap to
visualize public spending. We have cleaned the dataset and made some
queries to zoom into the info we're interested in. So far, so good, but
now we would like to change the labels on a treemap. So consider this code:

=============
| b labels |
     b := RTTreeMapBuilder new.
     labels := #('uno' 'dos' 'tres' 'cuatro' 'cinco').
     b shape fillColor: Color random.
     b from: (1 to: 5) using: [#()].
     b weight: [:n | n].
     b build.
     ^ b view.
=============

How can I add the labels from labels to each of shapes of b?

Thanks,

Offray

I am not in front of my computer:
B view elements @ RTLabelled

I think it should do it

Alexandre

Thanks Alexandre, even more being away of the computer... It kind of works. Now the visualization shows the labels in the upper side of each rectangle. Like this:



The idea is to put labels like "uno", "dos", "tres", "cuatro", "cinco" on each rectagle instead of the numbers. Anyway we have ended our hackathon/workshop in the #DataWeek3 and #OpenDataDay for today. A really good balance  and this third edition is the best of all until now. Still there is a step learning curve and "cultural shock" on Smalltalk, but agile visualization, the Roassal environment, GT Tools, and Pharo are promising and interesting for newcomers.

Cheers and thanks again,

Offray

B view elements @ RTLabelled

Almost there!

===========
| b labels popup |
    labels := #('uno' 'dos' 'tres' 'cuatro' 'cinco').
    popup := RTPopup new.
    popup text: [:object | labels at: object  ].
    b := RTTreeMapBuilder new.
    b shape fillColor: Color random.
    b from: (1 to: 5) using: [#()].
    b weight: [:n | n].
    b build.
    b view elements @ popup.
    ^ b view.
===========

The strange thing is that 2nd and 3rd boxes don't get the proper label, but everyone else does....

Cheers,

Offray

Thanks Alexandre, even more being away of the computer... It kind of works. Now the visualization shows the labels in the upper side of each rectangle. Like this:



The idea is to put labels like "uno", "dos", "tres", "cuatro", "cinco" on each rectagle instead of the numbers. Anyway we have ended our hackathon/workshop in the #DataWeek3 and #OpenDataDay for today. A really good balance  and this third edition is the best of all until now. Still there is a step learning curve and "cultural shock" on Smalltalk, but agile visualization, the Roassal environment, GT Tools, and Pharo are promising and interesting for newcomers.

Cheers and thanks again,

Offray

On 05/03/16 20:42, Alexandre Bergel wrote:

B view elements @ RTLabelled

You can do something like that:

Thanks Alexandre. Your code lead me to the following, which solves the issue:

===============
| boxedLabels b labels |
b := RTTreeMapBuilder new.
  labels := #('uno' 'dos' 'tres' 'cuatro' 'cinco').
  boxedLabels := (RTLabelled new color: Color black; center).
  boxedLabels text: [:index | labels at: index  ].
  b shape fillColor: Color veryLightGray.
  b from: (1 to: 5) using: [#()].
  b weight: [:n | n].
  b build.
  b view elements @ boxedLabels.
  ^ b view.
===============

Cheers,

Offray

You can do something like that:

b := RTTreeMapBuilder new.
  labels := #('uno' 'dos' 'tres' 'cuatro' 'cinco').
  b shape fillColor: Color veryLightGray.
  b from: (1 to: 5) using: [#()].
  b weight: [:n | n].
  b build.
b view elements @ (RTLabelled new color: Color black; center).
  ^ b view.

Let me know how it goes!

Cheers,

Alexandre

On Mar 5, 2016, at 11:28 PM, Offray Vladimir Luna Cárdenas <[hidden email]> wrote:

Almost there!

===========
| b labels popup |
    labels := #('uno' 'dos' 'tres' 'cuatro' 'cinco').
    popup := RTPopup new.
    popup text: [:object | labels at: object  ].
    b := RTTreeMapBuilder new.
    b shape fillColor: Color random.
    b from: (1 to: 5) using: [#()].
    b weight: [:n | n].
    b build.
    b view elements @ popup.
    ^ b view.
===========

The strange thing is that 2nd and 3rd boxes don't get the proper label, but everyone else does....

Cheers,

Offray

On 05/03/16 20:56, Offray Vladimir Luna Cárdenas wrote:

Thanks Alexandre, even more being away of the computer... It kind of works. Now the visualization shows the labels in the upper side of each rectangle. Like this:

<Mail Attachment.png>

The idea is to put labels like "uno", "dos", "tres", "cuatro", "cinco" on each rectagle instead of the numbers. Anyway we have ended our hackathon/workshop in the #DataWeek3 and #OpenDataDay for today. A really good balance  and this third edition is the best of all until now. Still there is a step learning curve and "cultural shock" on Smalltalk, but agile visualization, the Roassal environment, GT Tools, and Pharo are promising and interesting for newcomers.

Cheers and thanks again,

Offray


On 05/03/16 20:42, Alexandre Bergel wrote:

B view elements @ RTLabelled

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Alexandre Bergel  http://www.bergel.eu
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