MATLAB: set line's color and style order to be applied in parallel

问题

When you set DefaultAxesColorOrder and DefaultAxesLineStyleOrder MATLAB will first cycle through all colors with the first style, then again through all colors with the second style and so on.

See this documentation or related question.

What I would like to do is to set color order and style order to be applied independently.

For example, if I set DefaultAxesColorOrder to [1 0 0; 0 1 0; 0 0 1] and DefaultAxesLineStyleOrder to '-|--|:', the lines will be 'r-','g-','b-','r--','g--','b--','r:','g:','b:'. I want lines to be 'r-','g--','b:'.

回答1:

I don't see a way to do this directly out of the box. The straightforward way is to set the color/style manually for each line.

Here is a more automated solution. Let's start with an example taken from the documentation:

%# defaults are set sometime before
set(0, 'DefaultAxesColorOrder',[1 0 0;0 1 0;0 0 1], ...
      'DefaultAxesLineStyleOrder','-|--|:')

%# do plotting as usual
t = 0:pi/20:2*pi;
a = zeros(length(t),9);
for i = 1:9
    a(:,i) = sin(t-i/5)';
end
h = plot(t,a);

As you explained in your question, the default behavior is to cycle through the colors first, then the line styles. If you want to apply them independently, try the following:

c = num2cell(get(0,'DefaultAxesColorOrder'),2);
l = cellstr(get(0,'DefaultAxesLineStyleOrder'));
set(h, {'Color'}, c(rem((1:numel(h))-1,numel(c))+1), ...
    {'LineStyle'}, l(rem((1:numel(h))-1,numel(l))+1))

You can maybe wrap that in a function for convenient access (you still have to pass the handles to the lines graphic objects):

function applyColorLineStyleIndependently(h)
    %# ...
end

回答2:

Amro's approach works well. Just as a note, you don't have to set the defaults to do this. You can do something like this

col = mycolors(); % defines RGB colors scaled to [0,1]

i = 1;
c(:,i) = col.royal_blue; i = i+1;
c(:,i) = col.crimson; i = i+1;
c(:,i) = col.medium_sea_green; i = i+1;
c(:,i) = col.coral; i = i+1;
c(:,i) = col.dark_magenta; i = i+1;

colord = num2cell(c',2);
lineord = {'-' '--' '-.'}'; 

set(h,{'Color'}, colord(rem((1:numel(h))-1,numel(colord))+1), ...
      {'LineStyle'}, lineord(rem((1:numel(h))-1,numel(lineord))+1))
set(h,'LineWidth',2)

Edit: the mycolors() function is home made. I define

colors.maroon = [128,0,0];
colors.dark_red = [139,0,0];
colors.brown = [165,42,42];
...

(the color names are from this http://www.rapidtables.com/web/color/RGB_Color.htm). Then I scale them to [0,1] via

c = fieldnames(colors);
for i = 1:numel(c)
    colors.(c{i}) = colors.(c{i})/255;
end

来源：https://stackoverflow.com/questions/7326009/matlab-set-lines-color-and-style-order-to-be-applied-in-parallel

标签

matlab

colors

plot

line

linestyle