Graph handles in loops
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I am trying to animate several objects at once and can not figure out how to make it work the way I need it to. So far this is the general stucture I have figured out.
What do I need to do different to make this work? Also is there a way to generate the handles without typing them out?
handles = [ "h1", "h2", "h3", ... ];
for j = 1:numObjects
handles(j) = plot(stuff(1));
end
for i = 2:numSteps
for j = 1:numObjects
handles(j) = set(stuff(i));
end
pause timeStep
end
采纳的回答
Geoff Hayes
2020-5-19
编辑：Geoff Hayes
2020-5-19
Michael - since you have already created the handles with the code
for j = 1:numObjects
handles(j) = plot(stuff(1));
end
you will then need to update them in your other loop (rather than re-assigning something to the handles array). Try this
for i = 2:numSteps
for j = 1:numObjects
set(handles(j),'PropertyName', Value);
end
pause timeStep
end
where you need to "fill in" what (one or more) property names and values that you are updating.
2 个评论
Michael Pilgrim
2020-5-19
Geoff Hayes
2020-5-19
Michael - sorry, I missed that first line
handles = [ "h1", "h2", "h3", ... ];
There is no need to assign strings here and so that is why there is the error - you have a string array, and then in the loop you are assigning the graphics object handles (which are doubles). Just replace this line with
handles = []; % or handles = zeros(numObjects);
and try again.
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