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[ANN] CubeHelix and slider

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abergel

[ANN] CubeHelix and slider

Hi!

Yesterday with Damien P., we had a great discussion about modeling color palettes. Damien showed me an implementation he did about cubehelix. This is a fantastic way to model colors, while preserving the intensity. More info about it on: https://www.mrao.cam.ac.uk/~dag/CUBEHELIX/

Here is a code example:

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

| v helix shape elements slider |
v := RTView new.
helix := RTCubeHelix new.
helix rotations: 2.
helix gamma: 2.
shape := (RTBox new height: 300; width: 1; color: [ :model | helix level: model ]).
elements := shape elementsOn: (0.0 to: 1.0 by: 0.002).
v addAll: elements.
RTHorizontalLineLayout new gapSize: 0; on: elements.

"Set the gamma value"
slider := RTSlider new.
slider view: v.
slider labelled.
slider callback: [ :aValue | helix gamma: 5 * aValue. elements updateShape ].
slider moveBelow.
slider build.

"Set the rotation value"
slider := RTSlider new.
slider view: v.
slider labelled.
slider callback: [ :aValue | helix rotations: 5 * aValue. elements updateShape ].
slider moveBelow.
slider build.

v
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

And the accompanying screenshot

Cheers,

Alexandre

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

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philippeback

Re: [ANN] CubeHelix and slider

Wow, we get more and more speed and cool stuff from Roassal these days!!!

Very useful for heat maps in business!

Phil

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Tudor Girba-2

Re: [ANN] CubeHelix and slider

This is beautiful.

The speed with which things are happening these days around Moose and Pharo is just mind boggling.

Cheers,

Doru

On Wed, Dec 17, 2014 at 12:00 AM, [hidden email] <[hidden email]> wrote:

Wow, we get more and more speed and cool stuff from Roassal these days!!!

Very useful for heat maps in business!

Phil

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www.tudorgirba.com

"Every thing has its own flow"

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Sven Van Caekenberghe-2

Re: [ANN] CubeHelix and slider

> On 17 Dec 2014, at 08:36, Tudor Girba <[hidden email]> wrote:
>
> This is beautiful.
>
> The speed with which things are happening these days around Moose and Pharo is just mind boggling.

Yes, that is true.

I has been going fast for quite a while, but it seems to be accelerating.

> Cheers,
> Doru
>
>
>
> On Wed, Dec 17, 2014 at 12:00 AM, [hidden email] <[hidden email]> wrote:
> Wow, we get more and more speed and cool stuff from Roassal these days!!!
>
> Very useful for heat maps in business!
>
> Phil
>
>
> _______________________________________________
> Moose-dev mailing list
> [hidden email]
> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>
>
>
> --
> www.tudorgirba.com
>
> "Every thing has its own flow"
> _______________________________________________
> Moose-dev mailing list
> [hidden email]
> https://www.iam.unibe.ch/mailman/listinfo/moose-dev

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stepharo

Re: [ANN] CubeHelix and slider

In reply to this post by abergel

Yes :)
And we want to have this inside Pharo as well as I hope soom better palettes.
Tx Damien for this code.
So we agree with alex that he can use it in Roassal the time that we integrate it in Pharo :)
Stef

Le 16/12/14 22:43, Alexandre Bergel a écrit :

Hi!

Yesterday with Damien P., we had a great discussion about modeling color palettes. Damien showed me an implementation he did about cubehelix. This is a fantastic way to model colors, while preserving the intensity. More info about it on: https://www.mrao.cam.ac.uk/~dag/CUBEHELIX/

Here is a code example:

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
| v helix shape elements slider |
v := RTView new.
helix := RTCubeHelix new.
helix rotations: 2.
helix gamma: 2.
shape := (RTBox new height: 300; width: 1; color: [ :model | helix level: model ]).
elements := shape elementsOn: (0.0 to: 1.0 by: 0.002).
v addAll: elements.
RTHorizontalLineLayout new gapSize: 0; on: elements.

"Set the gamma value"
slider := RTSlider new.
slider view: v.
slider labelled.
slider callback: [ :aValue | helix gamma: 5 * aValue. elements updateShape ].
slider moveBelow.
slider build.

"Set the rotation value"
slider := RTSlider new.
slider view: v.
slider labelled.
slider callback: [ :aValue | helix rotations: 5 * aValue. elements updateShape ].
slider moveBelow.
slider build.

v
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

And the accompanying screenshot

Cheers,

Alexandre

--

_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
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Moose-dev mailing list
[hidden email]
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[hidden email]
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