When you initialize an array of MATLAB graphics objects like this
num_plots = 2;
g(1:num_plots) = animatedline;
MATLAB creates a single instance of animatedline and assigns it to all elements. Since animatedline is a handle class, all elements of 'g' point to the same object
>> g(1)==g(2)
ans =
logical
1
The workaround is to use a for-loop to initialize so that each element is created independently. For a slightly easier syntax, you can use arrayfun()
num_plots = 2;
g = arrayfun(@(x) animatedline(), 1:num_plots);
for i = 1:100
for ih = 1:num_plots
x = i;
y = i*ih;
addpoints(g(ih),x,y)
end
end
