Need data points in 'plot' filled with the same color as the line.

I need the data points in a plot to be the same color as the line.

I tried specifying the line and data points as follows: "o-", "MarkerFaceColor","auto".

The result is a line with unfilled data points. The data points have the outline that is the same color as the line but the data points are not filled.

What am I missing?

Answer 1

[Dyuman Joshi]

From the documentation of plot, sub-section MarkerFaceColor - "The "auto" option uses the same color as the Color property of the parent axes."

The color of the parent axes is white, see below -

x = 0:0.1:10;
y = sin(x);

figure
plot(x,y,'o-', 'MarkerFaceColor', 'auto')

get(gca,'Color')

ans = 1×3

1 1 1

Solution, specify the color -

col = [0 0 1];

figure
plot(x,y,'o-', 'Color', col, 'MarkerFaceColor', col)

or plot the curve first and then set the MarkerFaceColor to be the same as the Line Color via the handle -

figure
h=plot(x,y,'o-');
h.MarkerFaceColor = h.Color;

[Christopher Graham]

I wanted to use the default colors so your second solution worked perfectly.

Thank you!

[Dyuman Joshi]

You are welcome!

If my answer solved your problem, please consider accepting the answer.

[Vitek Stepien]

I have a follow up question, is there an easy way of doing that if the variable I'm plotting is a 2D matrix, so it plots N different curves with the default colors? I would really hate to have to cycle through all of them in a for loop, manually defining each MarkerFaceColor to match the line color.

Example:

m = magic(4);
figure, tiledlayout(2,1), nexttile
plot(magic(4),'Marker','square','MarkerFaceColor','auto'), title 'This is simple but not what I need'
cmap = colororder();
nexttile, hold on
for N = 1:length(m)
plot(m(:,N),'Marker','square','MarkerFaceColor', cmap(N,:))
end
title 'This is what I want to see'