When using xline, would it be possible to have the text in one color and the lines in another color?

When using xline, would it be possible to have the text in one color and the lines in another color?

% Here, I would like to have the text in one color and the vertical lines in
% another color
fig = figure();
ax = axes(fig);
ax.XTick = 1:14; 
hold on
arrayfun(@(x)xline(x,'-','S','LabelOrientation','horizontal','Color',[.5 .5 .5]), 0:13)

Answer 1

[Star Strider]

Doing that in one pass is likely not an option, since there is no way to independently control the text colour. However colouring the labels with one xline call and the lines with a second xline call is certainly possible —

fig = figure();
ax = axes(fig);
ax.XTick = 1:14; 
dy = ["S","S","M","T","W","T","F"];
xline(ax.XTick-1,'-k',repmat(dy,1,fix(max(ax.XTick)/7)), 'LabelOrientation','horiz','Color',[.9 .7 .5]);
xline(ax.XTick-1,'-k')

fig = figure();
ax = axes(fig);
ax.XTick = 1:14; 
cm = colormap(turbo(max(ax.XTick)));                            % Define 'colormap'
dy = ["S","S","M","T","W","T","F"];
dyv = repmat(dy,1,fix(max(ax.XTick)/7));                        % 'dyv': Days Vector
arrayfun(@(idx)xline(idx-1,'-k', dyv(idx), 'LabelOrientation','horiz','Color',cm(idx,:)),ax.XTick);
xline(ax.XTick-1,'-k')

The first approach uses the same colour for each day, and the second a different colour for each day. Any colormap will work.

The same cautions apply here, specifically that the elements of ‘cm’ and ‘dyv’ have to be consistent with the value range of ax.XTick.

.

[Sim]

Oh gosh, you really nailed it !!! Chapeau @Star Strider :-) :-)

[Star Strider]

Thank you!

[Sim]

Whether it would be of any use to other Matlab users, here there is a small variation of the @Star Strider code, where we can put the xlines in some customized position, and not following the ax.XTick:

clc
fig = figure();
ax = axes(fig);
a = [1 7 12 19 27 34 41 49]; % <-- customized position of xlines
ax.XTick = 1:max(a); 
cm = colormap(turbo(max(ax.XTick)));                            
dyv = repmat(["S","S","M","T","W","T","F"],1,ceil(max(a)/7));
y = 1:length(a);
arrayfun(@(x,y)xline(x,'-k', dyv(y), 'LabelOrientation','horiz','Color',cm(x,:)),a,y);
xline(a,'-k')
xlim([0 max(a)])

Answer 2

[Afiq Azaibi]

Starting in R2024b, you can leverage the LabelColor property on ConstantLine to control the color of the label independently of the line.

colors = turbo(7);
for i = 1:7
    xline(i, '-k', 'ABC', 'LabelOrientation', 'horizontal', 'LabelColor', colors(i,:))
end