Change all Plot MarkerSizes at once?

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Felicia Brimigion
Felicia Brimigion on 6 Jan 2021
I have about 7 subplots, each with four plots)
Each plot has 8-16 separate plots, I was wondering if there is any way to make a blanket statement of sorts, to change the markersize of each point to 10, without having to do ,'MarkerSize',10 after every single (x,y) and (a,b) pair:
plot([x([2:4],:),y([2:4],:),'.',x([5:8],:),y([5:8],:),'.',x([9:11],:),y([9:11],:),'.', ...
a([2:4],:),b([2:4],:),'.',a([5:8],:),b([5:8],:),'.',a([9:11],:),b([9:11],:),'.')
These need to be indexed separately like this for unrelated legend reasons. This type of plotting occurs for every single plot, in each subplotso it would be quite tedious to have to copy/paste:
,'MarkerSize',10
after every single pair for every plot for every subplot.
Thank you!

Answers (1)

Steven Lord
Steven Lord on 6 Jan 2021
x = 0:360;
h = gobjects(1, 5);
ax = axes;
axis([0 360 -1 1]);
hold on
for k = 1:5
h(k) = plot(x, sind(k*x), 'o-', 'MarkerIndices', 1:6*k:361, 'UserData', k);
end
Now let's find all the objects in the axes that have a MarkerSize property.
h2 = findall(ax, '-property', 'MarkerSize');
Now change them.
for whichone = 1:numel(h2)
this = h2(whichone);
oldMS = this.MarkerSize;
newMS = oldMS*this.UserData;
this.MarkerSize = newMS;
end
I used a for loop because I wanted to give each line a different MarkerSize. If you wanted to change them all to the same value, use set. Since I previously changed the MarkerSize property, here I'll change LineStyle instead.
set(h2, 'LineStyle', '--')
  2 Comments
Stephen23
Stephen23 on 6 Jan 2021
Oooh, I like that. TMW should release a line of MATLAB-branded gift-wrapping paper. Or wallpaper.
Felicia Brimigion
Felicia Brimigion on 7 Jan 2021
Thank you so much! I will give that a try!!

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