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', '--')
