Re: [Scilab-users] GSOC 2018

[Samuel Gougeon]

Hello Claus,

AFAIK, there is this portal on the wiki : 
https://wiki.scilab.org/GSoC_project_proposal
and this dedicated and active mailing list : 
http://mailinglists.scilab.org/Scilab-GSOC-Mailing-Lists-Archives-f2646148.html


But you are right : it would be worthwhile having official news here (on 
this list) about the selected projects and about their outcomes, status, 
and chances and schedule to see them available as ATOMS modules, or even 
afterwards  being included in Scilab for some of them.


Regards
Samuel

Le 07/05/2018 à 20:45, Claus Futtrup a écrit :

Hi there

Can Scilab confirm that there are four GSOC projects this year? I read 
from:


https://summerofcode.withgoogle.com/organizations/4726304075677696/#!

1. About Machine Learning
2. MacOS signed app
3. Code Quality
4. Working demo for Matlab MEX modules

... and will anyone post any news about it? Maybe here: 
https://www.scilab.org/en/projects/gsoc


Best regards,
Claus


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[Scilab-users] GSOC 2018

[Claus Futtrup]

Hi there

Can Scilab confirm that there are four GSOC projects this year? I read from:

https://summerofcode.withgoogle.com/organizations/4726304075677696/#!

1. About Machine Learning
2. MacOS signed app
3. Code Quality
4. Working demo for Matlab MEX modules

... and will anyone post any news about it? Maybe here:
https://www.scilab.org/en/projects/gsoc

Best regards,
Claus
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Re: [Scilab-users] gcf().anti_aliasing : Confirmation of (un)effect?

[Rafael Guerra]

Hi Samuel,

Could not see any anti-aliasing being performed, either in Scilab 5 or
Scilab 6.
A quick trial on customizing the anti-aliasing settings in NVIDIA Quadro
K4100M for the Scilab program did not help either:
 

It may need more tweaking.

Regards,
Rafael




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Re: [Scilab-users] gcf().anti_aliasing : Confirmation of (un)effect?

[amonmayr]

Hello Samuel,

With your example, I don't see any difference on the various computers I 
have.
I think I used anti_aliasing in the past but I cannot find back a script 
where I used it.
I think I used it on 3D plots (surf?), maybe for the export to graphic 
files but I am not sure.

If I can find something I'll let you know.

Antoine


Le 07/05/2018 à 14:36, Samuel Gougeon a écrit :


Hello,

The gcf().anti_aliasing figure property was implemented many years ago 
(in the early Scilab 5.x versions).


It aims to reduce the "staircase effect" for lines drawn very close to 
vertical or horizontal directions.


Yet, has anyone ever seen an actual effect on graphic rendering, as 
expected and described in the related SEP#16 
 
?

I never did, whatever were the computer and its graphic card i used.
Still now with Scilab 6.0, i don't see any effect.

The staircase effect can easily be seen with the following code:

x = [0 1];
y = (0:0.02:1)';
y = [y y+0.02]';
clf
plot2d(x,y)
f = gcf();
f.anti_aliasing  // should display "off" (by default)

f = scf();
f.anti_aliasing = "8x";
plot2d(x,y)
Then compare both figures.
I get the following, whatever is the .anti_aliasing value.


Does anyone get anything else, closer to the expected "dithered" 
rendering?

Either it will be possible to better document the effect of this property,
as requested in the bug report 6777 
, or to reopen the 
bug 11311  reporting

that it is out of work.

Thanks
Samuel



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[Scilab-users] gcf().anti_aliasing : Confirmation of (un)effect?

[Samuel Gougeon]

Hello,

The gcf().anti_aliasing figure property was implemented many years ago 
(in the early Scilab 5.x versions).


It aims to reduce the "staircase effect" for lines drawn very close to 
vertical or horizontal directions.


Yet, has anyone ever seen an actual effect on graphic rendering, as 
expected and described in the related SEP#16 
 
?

I never did, whatever were the computer and its graphic card i used.
Still now with Scilab 6.0, i don't see any effect.

The staircase effect can easily be seen with the following code:

x = [0 1];
y = (0:0.02:1)';
y = [y y+0.02]';
clf
plot2d(x,y)
f = gcf();
f.anti_aliasing  // should display "off" (by default)

f = scf();
f.anti_aliasing = "8x";
plot2d(x,y)

Then compare both figures.
I get the following, whatever is the .anti_aliasing value.


Does anyone get anything else, closer to the expected "dithered" rendering?
Either it will be possible to better document the effect of this property,
as requested in the bug report 6777 
, or to reopen the bug 
11311  reporting

that it is out of work.

Thanks
Samuel

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