Re: [Scilab-users] Generic plot command draws automatically _which_ coloured curves

2023-03-22 Thread Jean-Yves Baudais 

Hello,

Le 21/03/2023 à 19:55, Stéphane Mottelet a écrit :

The colors and order of color cycling when using multiple pairs (x,y)
is arbitrary in Scilab.



Ok, no problem with that, but where is it defined? As Heinz Nabielik
wrote, if I want to use the same color (which are nice :-), I need to
know the definition. The problem is that "color_map" cannot help to find
the definition.


Jean-Yves
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Re: [Scilab-users] Generic plot command draws automatically _which_ coloured curves

2023-03-21 Thread Heinz Nabielek 
On 21.03.2023, at 17:17, Jean-Yves Baudais  
wrote:
>
> Hello,
>
> Le 20/03/2023 à 14:40, Samuel Gougeon a écrit :
>> getcolor() tells it to you, in the infobar for the selected color:
>
> > plot((1:10)',rand(10,6),"-*");legend("1","2","3","4","5","6")


Sorry, colleagues, I am still at a loss. At first, I am plotting 7 arrays in a 
sequence of pre-defined colours (that I find nowhwere in the Scilab help 
functions)

A=rand(10,7);
plot((1:10)',A,"-*");
xgrid(color('grey70'));
legend("1","2","3","4","5","6","7");

Now, I would like to redraw array #6 with a thicker line of the same colour as 
in the original colour sequence, thus:
plot((1:10)',A(:,6),"-",'linewidth',3);

How can I specify the 6th colour in the plot command?
Heinz
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Re: [Scilab-users] Generic plot command draws automatically _which_ coloured curves

2023-03-21 Thread Stéphane Mottelet 

The colors and order of color cycling when using multiple pairs (x,y)
(or plotting (x,y) when at least y is a matrix) is arbitrary in Scilab.
Scilab mimics (very approximately) Matlab behavior, but Matlab has a
"ColorOrder" property (even a "LineStyleOrder") which defines the colors
(by r,g,b triplet) and their order. Scilab does not have this property,
that's why I said "approximately"...

S.

Le 21/03/2023 à 17:17, Jean-Yves Baudais a écrit :

Hello,

Le 20/03/2023 à 14:40, Samuel Gougeon a écrit :

getcolor() tells it to you, in the infobar for the selected color:


> plot((1:10)',rand(10,6),"-*");legend("1","2","3","4","5","6")
> gcf().color_map

gvf().color_map gives the same color as getcolor() does, but it is not
the six colors used by the plot (the first color in the plot it's not
the black given by getcolor(), the green in the plot is not the primary
green in getcolor...). Why?

Jean-Yves
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--
Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
CS 60319, 60203 Compiègne cedex
Tel : +33(0)344234688
http://www.utc.fr/~mottelet

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Re: [Scilab-users] Generic plot command draws automatically _which_ coloured curves

2023-03-21 Thread Jean-Yves Baudais 

Hello,

Le 20/03/2023 à 14:40, Samuel Gougeon a écrit :

getcolor() tells it to you, in the infobar for the selected color:


> plot((1:10)',rand(10,6),"-*");legend("1","2","3","4","5","6")
> gcf().color_map

gvf().color_map gives the same color as getcolor() does, but it is not
the six colors used by the plot (the first color in the plot it's not
the black given by getcolor(), the green in the plot is not the primary
green in getcolor...). Why?

Jean-Yves
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Re: [Scilab-users] Generic plot command draws automatically _which_ coloured curves

2023-03-20 Thread Samuel Gougeon 

Le 20/03/2023 à 13:13, Heinz Nabielek a écrit :

size(E4)=   81.   1.
size(D) =81.   7.
plot (E4,D,'-')

This generic plot command draws automatically coloured curves in blue, green, 
red, etcetera

What are the following colours? I know that 8 is white


getcolor() tells it to you, in the infobar for the selected color:

[cid:part1.LqMLl9Rl.GuGn90eB@free.fr]


--> c = gdf().color_map; [(1:size(c,1))', c]
ans  =

  1.0.  0.  0.
  2.0.  0.  1.
  3.0.  1.  0.
  4.0.  1.  1.
  5.1.  0.  0.
  6.1.  0.  1.
  7.1.  1.  0.
  8.1.  1.  1.
  9.0.  0.  0.5647059
  10.   0.  0.  0.6901961
  11.   0.  0.  0.8156863
  12.   0.5294118   0.8078431   1.
  13.   0.  0.5647059   0.
  14.   0.  0.6901961   0.
  15.   0.  0.8156863   0.
  16.   0.  0.5647059   0.5647059
  17.   0.  0.6901961   0.6901961
  18.   0.  0.8156863   0.8156863
  19.   0.5647059   0.  0.
  20.   0.6901961   0.  0.
  21.   0.8156863   0.  0.
  22.   0.5647059   0.  0.5647059
  23.   0.6901961   0.  0.6901961
  24.   0.8156863   0.  0.8156863
  25.   0.5019608   0.1882353   0.
  26.   0.6274510.2509804   0.
  27.   0.7529412   0.3764706   0.
  28.   1.  0.5019608   0.5019608
  29.   1.  0.6274510.627451
  30.   1.  0.7529412   0.7529412
  31.   1.  0.8784314   0.8784314
  32.   1.  0.8431373   0.


Samuel


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