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Roassal : Playing with the contrast

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Pharo Smalltalk Users mailing list

Roassal : Playing with the contrast

Hi,

I am wondering if there is a way to play with the contrast of Roassal visualisations.

If so, please tell me how :)

Thank you in advance

Abdelghani

abergel

Re: Roassal : Playing with the contrast

Hi!

What do you mean with contrasts? You mean the colors?
Currently, there is no way to automatically assign colors to a visualization, although you can use a color palette (look at the class RTPalette).

Cheers,
Alexandre

> On Feb 20, 2018, at 7:01 AM, abdelghani ALIDRA via Pharo-users <[hidden email]> wrote:
>
>
> From: abdelghani ALIDRA <[hidden email]>
> Subject: Roassal : Playing with the contrast
> Date: February 20, 2018 at 7:01:20 AM GMT-3
> To: "[hidden email]" <[hidden email]>
> Reply-To: abdelghani ALIDRA <[hidden email]>
>
>
> Hi,
>
> I am wondering if there is a way to play with the contrast of Roassal visualisations.
> If so, please tell me how :)
>
> Thank you in advance
> Abdelghani
>
>
>

Stephane Ducasse-3

Re: Roassal : Playing with the contrast

In reply to this post by Pharo Smalltalk Users mailing list

Abdel

MCSmalltalkhubRepository
owner: 'StephaneDucasse'
project: 'Colors'
user: ''
password: ''

On Tue, Feb 20, 2018 at 11:01 AM, abdelghani ALIDRA via Pharo-users
<[hidden email]> wrote:

>
>
> ---------- Forwarded message ----------
> From: abdelghani ALIDRA <[hidden email]>
> To: "[hidden email]" <[hidden email]>
> Cc:
> Bcc:
> Date: Tue, 20 Feb 2018 10:01:20 +0000 (UTC)
> Subject: Roassal : Playing with the contrast
> Hi,
>
> I am wondering if there is a way to play with the contrast of Roassal visualisations.
> If so, please tell me how :)
>
> Thank you in advance
> Abdelghani
>
>

Stephane Ducasse-3

Re: Roassal : Playing with the contrast

Abdel
have a look at the package I did, it provides more named colors +
queries to select colors based on colors or intensity.
May be we should introduce the couple of methods I created into Pharo.
I did it thinking about your work with Moussa.
It could be useful for Roassal people. Now they should let me know. I
spent time harvesting all the definitions, queries, cleaning
everything. But I will not push further.
May be having some bad default colors is good for other people, but not me :).

Stef

On Wed, Feb 21, 2018 at 10:13 AM, Stephane Ducasse
<[hidden email]> wrote:

> Abdel
>
>
> MCSmalltalkhubRepository
> owner: 'StephaneDucasse'
> project: 'Colors'
> user: ''
> password: ''
>
> On Tue, Feb 20, 2018 at 11:01 AM, abdelghani ALIDRA via Pharo-users
> <[hidden email]> wrote:
>>
>>
>> ---------- Forwarded message ----------
>> From: abdelghani ALIDRA <[hidden email]>
>> To: "[hidden email]" <[hidden email]>
>> Cc:
>> Bcc:
>> Date: Tue, 20 Feb 2018 10:01:20 +0000 (UTC)
>> Subject: Roassal : Playing with the contrast
>> Hi,
>>
>> I am wondering if there is a way to play with the contrast of Roassal visualisations.
>> If so, please tell me how :)
>>
>> Thank you in advance
>> Abdelghani
>>
>>

Pharo Smalltalk Users mailing list

Re: Roassal : Playing with the contrast

In reply to this post by abergel

Hi Alex and thanks for your answer,

By playing with the contrast I mean to change (dynamically) how visible lighter colors are from darker ones. And by dynamically, I mean I dont want to re-build the visu.

To be more specific, I can have for a certain visu, a shape coloured with Color red and bordered with Color red slightlyDarker.

At some point I would like to see the difference between these two colours and at some other point I dont.

So for instance, I increase the contrast and I see the border of the shape them I decrease it then I see the shape uniformaly coloured.

So, is there a way to do so?

Thanks,

Abdelghani

De : Alexandre Bergel <[hidden email]>
À : abdelghani ALIDRA <[hidden email]>; Any question about pharo is welcome <[hidden email]>
Envoyé le : Mercredi 21 février 2018 2h19
Objet : Re: [Pharo-users] Roassal : Playing with the contrast

Hi!

What do you mean with contrasts? You mean the colors?

Currently, there is no way to automatically assign colors to a visualization, although you can use a color palette (look at the class RTPalette).

Cheers,

Alexandre

> On Feb 20, 2018, at 7:01 AM, abdelghani ALIDRA via Pharo-users <[hidden email]> wrote:

> From: abdelghani ALIDRA <[hidden email]>

> Subject: Roassal : Playing with the contrast

> Date: February 20, 2018 at 7:01:20 AM GMT-3

> To: "[hidden email]" <[hidden email]>

> Reply-To: abdelghani ALIDRA <[hidden email]>

> Hi,

> I am wondering if there is a way to play with the contrast of Roassal visualisations.

> If so, please tell me how :)

> Thank you in advance

> Abdelghani

Pharo Smalltalk Users mailing list

Re: Roassal : Playing with the contrast

In reply to this post by Stephane Ducasse-3

Hi Stef,

It looks great.

I will have a look and use for our work.

Cheers

Abdelghani

De : Stephane Ducasse <[hidden email]>
À : abdelghani ALIDRA <[hidden email]>; Any question about pharo is welcome <[hidden email]>
Envoyé le : Mercredi 21 février 2018 10h15
Objet : Re: [Pharo-users] Roassal : Playing with the contrast

On Wed, Feb 21, 2018 at 10:13 AM, Stephane Ducasse
<[hidden email]> wrote:

abergel

Re: Roassal : Playing with the contrast

In reply to this post by abergel

Well… you can change the color of any element (even if the visualization is open).
Simply goes to the canvas and change the trachel shape. I can provide an example if you wish.

Alexandre

> On Feb 21, 2018, at 8:38 AM, abdelghani ALIDRA <[hidden email]> wrote:
>
> Hi Alex and thanks for your answer,
> By playing with the contrast I mean to change (dynamically) how visible lighter colors are from darker ones. And by dynamically, I mean I dont want to re-build the visu.
>
> To be more specific, I can have for a certain visu, a shape coloured with Color red and bordered with Color red slightlyDarker.
> At some point I would like to see the difference between these two colours and at some other point I dont.
> So for instance, I increase the contrast and I see the border of the shape them I decrease it then I see the shape uniformaly coloured.
>
> So, is there a way to do so?
> Thanks,
> Abdelghani
>
>
> De : Alexandre Bergel <[hidden email]>
> À : abdelghani ALIDRA <[hidden email]>; Any question about pharo is welcome <[hidden email]>
> Envoyé le : Mercredi 21 février 2018 2h19
> Objet : Re: [Pharo-users] Roassal : Playing with the contrast
>
> Hi!
>
> What do you mean with contrasts? You mean the colors?
> Currently, there is no way to automatically assign colors to a visualization, although you can use a color palette (look at the class RTPalette).
>
> Cheers,
> Alexandre
>
>
> > On Feb 20, 2018, at 7:01 AM, abdelghani ALIDRA via Pharo-users <[hidden email]> wrote:
> >
> >
> > From: abdelghani ALIDRA <[hidden email]>
> > Subject: Roassal : Playing with the contrast
> > Date: February 20, 2018 at 7:01:20 AM GMT-3
> > To: "[hidden email]" <[hidden email]>
> > Reply-To: abdelghani ALIDRA <[hidden email]>
> >
> >
> > Hi,
> >
> > I am wondering if there is a way to play with the contrast of Roassal visualisations.
> > If so, please tell me how :)
> >
> > Thank you in advance
> > Abdelghani
> >
> >
> >
>
>

Stephane Ducasse-3

Re: Roassal : Playing with the contrast

Alex you should look at my package because it can be useful to roassal.

On Wed, Feb 21, 2018 at 9:05 PM, Alexandre Bergel
<[hidden email]> wrote:

> Well… you can change the color of any element (even if the visualization is open).
> Simply goes to the canvas and change the trachel shape. I can provide an example if you wish.
>
> Alexandre
>
>
>
>> On Feb 21, 2018, at 8:38 AM, abdelghani ALIDRA <[hidden email]> wrote:
>>
>> Hi Alex and thanks for your answer,
>> By playing with the contrast I mean to change (dynamically) how visible lighter colors are from darker ones. And by dynamically, I mean I dont want to re-build the visu.
>>
>> To be more specific, I can have for a certain visu, a shape coloured with Color red and bordered with Color red slightlyDarker.
>> At some point I would like to see the difference between these two colours and at some other point I dont.
>> So for instance, I increase the contrast and I see the border of the shape them I decrease it then I see the shape uniformaly coloured.
>>
>> So, is there a way to do so?
>> Thanks,
>> Abdelghani
>>
>>
>> De : Alexandre Bergel <[hidden email]>
>> À : abdelghani ALIDRA <[hidden email]>; Any question about pharo is welcome <[hidden email]>
>> Envoyé le : Mercredi 21 février 2018 2h19
>> Objet : Re: [Pharo-users] Roassal : Playing with the contrast
>>
>> Hi!
>>
>> What do you mean with contrasts? You mean the colors?
>> Currently, there is no way to automatically assign colors to a visualization, although you can use a color palette (look at the class RTPalette).
>>
>> Cheers,
>> Alexandre
>>
>>
>> > On Feb 20, 2018, at 7:01 AM, abdelghani ALIDRA via Pharo-users <[hidden email]> wrote:
>> >
>> >
>> > From: abdelghani ALIDRA <[hidden email]>
>> > Subject: Roassal : Playing with the contrast
>> > Date: February 20, 2018 at 7:01:20 AM GMT-3
>> > To: "[hidden email]" <[hidden email]>
>> > Reply-To: abdelghani ALIDRA <[hidden email]>
>> >
>> >
>> > Hi,
>> >
>> > I am wondering if there is a way to play with the contrast of Roassal visualisations.
>> > If so, please tell me how :)
>> >
>> > Thank you in advance
>> > Abdelghani
>> >
>> >
>> >
>>
>>
>
>

abergel

Re: Roassal : Playing with the contrast

Yes, I had a look at it. Indeed, it provides a nice set of utility methods.
By the way, what the class ColorChecker does?

I will make a plugin for it in Roassal.

Alexandre

> On Feb 21, 2018, at 5:32 PM, Stephane Ducasse <[hidden email]> wrote:
>
> Alex you should look at my package because it can be useful to roassal.
>
>
> On Wed, Feb 21, 2018 at 9:05 PM, Alexandre Bergel
> <[hidden email]> wrote:
>> Well… you can change the color of any element (even if the visualization is open).
>> Simply goes to the canvas and change the trachel shape. I can provide an example if you wish.
>>
>> Alexandre
>>
>>
>>
>>> On Feb 21, 2018, at 8:38 AM, abdelghani ALIDRA <[hidden email]> wrote:
>>>
>>> Hi Alex and thanks for your answer,
>>> By playing with the contrast I mean to change (dynamically) how visible lighter colors are from darker ones. And by dynamically, I mean I dont want to re-build the visu.
>>>
>>> To be more specific, I can have for a certain visu, a shape coloured with Color red and bordered with Color red slightlyDarker.
>>> At some point I would like to see the difference between these two colours and at some other point I dont.
>>> So for instance, I increase the contrast and I see the border of the shape them I decrease it then I see the shape uniformaly coloured.
>>>
>>> So, is there a way to do so?
>>> Thanks,
>>> Abdelghani
>>>
>>>
>>> De : Alexandre Bergel <[hidden email]>
>>> À : abdelghani ALIDRA <[hidden email]>; Any question about pharo is welcome <[hidden email]>
>>> Envoyé le : Mercredi 21 février 2018 2h19
>>> Objet : Re: [Pharo-users] Roassal : Playing with the contrast
>>>
>>> Hi!
>>>
>>> What do you mean with contrasts? You mean the colors?
>>> Currently, there is no way to automatically assign colors to a visualization, although you can use a color palette (look at the class RTPalette).
>>>
>>> Cheers,
>>> Alexandre
>>>
>>>
>>>> On Feb 20, 2018, at 7:01 AM, abdelghani ALIDRA via Pharo-users <[hidden email]> wrote:
>>>>
>>>>
>>>> From: abdelghani ALIDRA <[hidden email]>
>>>> Subject: Roassal : Playing with the contrast
>>>> Date: February 20, 2018 at 7:01:20 AM GMT-3
>>>> To: "[hidden email]" <[hidden email]>
>>>> Reply-To: abdelghani ALIDRA <[hidden email]>
>>>>
>>>>
>>>> Hi,
>>>>
>>>> I am wondering if there is a way to play with the contrast of Roassal visualisations.
>>>> If so, please tell me how :)
>>>>
>>>> Thank you in advance
>>>> Abdelghani
>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>

Stephane Ducasse-3

Re: Roassal : Playing with the contrast

I should remove it.
And we should introduce this package in Pharo and I should do a pass
on the image color initialize.

Stef

On Thu, Feb 22, 2018 at 12:40 PM, Alexandre Bergel
<[hidden email]> wrote:

> Yes, I had a look at it. Indeed, it provides a nice set of utility methods.
> By the way, what the class ColorChecker does?
>
> I will make a plugin for it in Roassal.
>
> Alexandre
>
>
>> On Feb 21, 2018, at 5:32 PM, Stephane Ducasse <[hidden email]> wrote:
>>
>> Alex you should look at my package because it can be useful to roassal.
>>
>>
>> On Wed, Feb 21, 2018 at 9:05 PM, Alexandre Bergel
>> <[hidden email]> wrote:
>>> Well… you can change the color of any element (even if the visualization is open).
>>> Simply goes to the canvas and change the trachel shape. I can provide an example if you wish.
>>>
>>> Alexandre
>>>
>>>
>>>
>>>> On Feb 21, 2018, at 8:38 AM, abdelghani ALIDRA <[hidden email]> wrote:
>>>>
>>>> Hi Alex and thanks for your answer,
>>>> By playing with the contrast I mean to change (dynamically) how visible lighter colors are from darker ones. And by dynamically, I mean I dont want to re-build the visu.
>>>>
>>>> To be more specific, I can have for a certain visu, a shape coloured with Color red and bordered with Color red slightlyDarker.
>>>> At some point I would like to see the difference between these two colours and at some other point I dont.
>>>> So for instance, I increase the contrast and I see the border of the shape them I decrease it then I see the shape uniformaly coloured.
>>>>
>>>> So, is there a way to do so?
>>>> Thanks,
>>>> Abdelghani
>>>>
>>>>
>>>> De : Alexandre Bergel <[hidden email]>
>>>> À : abdelghani ALIDRA <[hidden email]>; Any question about pharo is welcome <[hidden email]>
>>>> Envoyé le : Mercredi 21 février 2018 2h19
>>>> Objet : Re: [Pharo-users] Roassal : Playing with the contrast
>>>>
>>>> Hi!
>>>>
>>>> What do you mean with contrasts? You mean the colors?
>>>> Currently, there is no way to automatically assign colors to a visualization, although you can use a color palette (look at the class RTPalette).
>>>>
>>>> Cheers,
>>>> Alexandre
>>>>
>>>>
>>>>> On Feb 20, 2018, at 7:01 AM, abdelghani ALIDRA via Pharo-users <[hidden email]> wrote:
>>>>>
>>>>>
>>>>> From: abdelghani ALIDRA <[hidden email]>
>>>>> Subject: Roassal : Playing with the contrast
>>>>> Date: February 20, 2018 at 7:01:20 AM GMT-3
>>>>> To: "[hidden email]" <[hidden email]>
>>>>> Reply-To: abdelghani ALIDRA <[hidden email]>
>>>>>
>>>>>
>>>>> Hi,
>>>>>
>>>>> I am wondering if there is a way to play with the contrast of Roassal visualisations.
>>>>> If so, please tell me how :)
>>>>>
>>>>> Thank you in advance
>>>>> Abdelghani
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>
>

Pharo Smalltalk Users mailing list

Re: Roassal : Playing with the contrast

In reply to this post by abergel

> On 21 Feb 2018, at 21:05, Alexandre Bergel <[hidden email]> wrote:
>
> Well… you can change the color of any element (even if the visualization is open).
> Simply goes to the canvas and change the trachel shape. I can provide an example if you wish.

Yes please.
It would be great if
- the modification applies uniformly to all the elements of the visualisation.
- Control the modification using a button or a key combination (increase/decrease)

I dont know if this possible but anyway, your solution looks fine to me :)

Abdelghani

>
> Alexandre
>
>
>
>> On Feb 21, 2018, at 8:38 AM, abdelghani ALIDRA <[hidden email]> wrote:
>>
>> Hi Alex and thanks for your answer,
>> By playing with the contrast I mean to change (dynamically) how visible lighter colors are from darker ones. And by dynamically, I mean I dont want to re-build the visu.
>>
>> To be more specific, I can have for a certain visu, a shape coloured with Color red and bordered with Color red slightlyDarker.
>> At some point I would like to see the difference between these two colours and at some other point I dont.
>> So for instance, I increase the contrast and I see the border of the shape them I decrease it then I see the shape uniformaly coloured.
>>
>> So, is there a way to do so?
>> Thanks,
>> Abdelghani
>>
>>
>> De : Alexandre Bergel <[hidden email]>
>> À : abdelghani ALIDRA <[hidden email]>; Any question about pharo is welcome <[hidden email]>
>> Envoyé le : Mercredi 21 février 2018 2h19
>> Objet : Re: [Pharo-users] Roassal : Playing with the contrast
>>
>> Hi!
>>
>> What do you mean with contrasts? You mean the colors?
>> Currently, there is no way to automatically assign colors to a visualization, although you can use a color palette (look at the class RTPalette).
>>
>> Cheers,
>> Alexandre
>>
>>
>>> On Feb 20, 2018, at 7:01 AM, abdelghani ALIDRA via Pharo-users <[hidden email]> wrote:
>>>
>>>
>>> From: abdelghani ALIDRA <[hidden email]>
>>> Subject: Roassal : Playing with the contrast
>>> Date: February 20, 2018 at 7:01:20 AM GMT-3
>>> To: "[hidden email]" <[hidden email]>
>>> Reply-To: abdelghani ALIDRA <[hidden email]>
>>>
>>>
>>> Hi,
>>>
>>> I am wondering if there is a way to play with the contrast of Roassal visualisations.
>>> If so, please tell me how :)
>>>
>>> Thank you in advance
>>> Abdelghani
>>>
>>>
>>>
>>
>>
>

abergel

Re: Roassal : Playing with the contrast

In reply to this post by abergel

Sorry to reply late.

Try this:

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

v := RTView new.

fiveCircles := RTEllipse new size: [ :e | 40 atRandom + 5 ]; elementsOn: (1 to: 5).
fiveBoxes := RTBox new size: [ :e | 40 atRandom + 5 ]; elementsOn: (1 to: 5).

v addAll: fiveCircles; addAll: fiveBoxes.

v elements do: [ :element | element translateTo: (200 atRandom @ 200 atRandom) ].

v addMenu: 'Red' callback: [ v canvas shapes do: [ :aTrachelShape | aTrachelShape color: Color red ]. v canvas signalUpdate ].

v addMenu: 'Blue' callback: [ v canvas shapes do: [ :aTrachelShape | aTrachelShape color: Color blue ]. v canvas signalUpdate ].
v

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

Let me know how it goes

Alexandre

On Feb 23, 2018, at 3:33 AM, Alidra Abdelghani <[hidden email]> wrote:

On 21 Feb 2018, at 21:05, Alexandre Bergel <[hidden email]> wrote:

Well… you can change the color of any element (even if the visualization is open).
Simply goes to the canvas and change the trachel shape. I can provide an example if you wish.

Yes please.
It would be great if
- the modification applies uniformly to all the elements of the visualisation.
- Control the modification using a button or a key combination (increase/decrease)

I dont know if this possible but anyway, your solution looks fine to me :)

Abdelghani

Alexandre

On Feb 21, 2018, at 8:38 AM, abdelghani ALIDRA <[hidden email]> wrote:

Hi Alex and thanks for your answer,
By playing with the contrast I mean to change (dynamically) how visible lighter colors are from darker ones. And by dynamically, I mean I dont want to re-build the visu.

To be more specific, I can have for a certain visu, a shape coloured with Color red and bordered with Color red slightlyDarker.
At some point I would like to see the difference between these two colours and at some other point I dont.
So for instance, I increase the contrast and I see the border of the shape them I decrease it then I see the shape uniformaly coloured.

So, is there a way to do so?
Thanks,
Abdelghani

De : Alexandre Bergel <[hidden email]>
À : abdelghani ALIDRA <[hidden email]>; Any question about pharo is welcome <[hidden email]>
Envoyé le : Mercredi 21 février 2018 2h19
Objet : Re: [Pharo-users] Roassal : Playing with the contrast

Hi!

What do you mean with contrasts? You mean the colors?
Currently, there is no way to automatically assign colors to a visualization, although you can use a color palette (look at the class RTPalette).

Cheers,
Alexandre

On Feb 20, 2018, at 7:01 AM, abdelghani ALIDRA via Pharo-users <[hidden email]> wrote:

From: abdelghani ALIDRA <[hidden email]>
Subject: Roassal : Playing with the contrast
Date: February 20, 2018 at 7:01:20 AM GMT-3
To: "[hidden email]" <[hidden email]>
Reply-To: abdelghani ALIDRA <[hidden email]>

Hi,

I am wondering if there is a way to play with the contrast of Roassal visualisations.
If so, please tell me how :)

Thank you in advance
Abdelghani

Pharo Smalltalk Users mailing list

Re: Roassal : Playing with the contrast

Thanks Alex.

I just changed Color red and Color bleu with TrachelShape color slightlyDarker.

It works perfect :)

Thanks again.

Abdelghani

On 01 Mar 2018, at 21:53, Alexandre Bergel <[hidden email]> wrote:

v := RTView new.

fiveCircles := RTEllipse new size: [ :e | 40 atRandom + 5 ]; elementsOn: (1 to: 5).
fiveBoxes := RTBox new size: [ :e | 40 atRandom + 5 ]; elementsOn: (1 to: 5).

v addAll: fiveCircles; addAll: fiveBoxes.

v elements do: [ :element | element translateTo: (200 atRandom @ 200 atRandom) ].

v addMenu: 'Red' callback: [ v canvas shapes do: [ :aTrachelShape | aTrachelShape color: Color red ]. v canvas signalUpdate ].

v addMenu: 'Blue' callback: [ v canvas shapes do: [ :aTrachelShape | aTrachelShape color: Color blue ]. v canvas signalUpdate ].
v