matlab plot in real time

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jianlong huang
jianlong huang 2015-12-11
评论： Geoff Hayes 2020-5-7
just a really simple problem, how can I plot this diagram in real time. I want those red crosses plotted on to my graph one by one rather than all of them at the same time.
A=[1:10];
B=[1:10];
B=0;
for B=[1:10]
temp=A(B);
B2=num2str(B);
disp(['Reading number=',B2,'temperature=',temp2])
plot(A,'rx')
pause(0.2)
end

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采纳的回答

Geoff Hayes
Geoff Hayes 2015-12-11
jianlong - try using the hold on command to retain the current plot when adding new ones. For example
hFig = figure;
hold on;
A=[1:10];
for k=1:10
disp(['Reading number=',k,'temperature=',A(k)])
plot(k,A(k),'rx')
pause(0.2)
end
Note how I have removed the B and the temporary variables and just access the element of A on the kth iteration as A(k).
  2 个评论
jianlong huang
jianlong huang 2015-12-11
what is hFig=figure; means :( i am just start to use matlab 3 days ago
Geoff Hayes
Geoff Hayes 2015-12-11
With
hFig = figure;
I am just creating a figure (to draw your plot on) and storing its handle in hFig. It isn't necessary for the above example, but if you need that handle for further processing then you have it ready to use.

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更多回答（2 个）

Joseph Cheng
Joseph Cheng 2015-12-11
no idea what you're doing with A or B especially with defining B but then using it as the indexer in the for loop but get what you can from the example:
A=[1:10];
figure(1),hold on,axis([0 10 0 10])
for ind=[1:10]
plot(ind,A(ind),'rx')
pause(.1)
end
anil simsek
anil simsek 2020-5-6
I have Arduino code, I want to draw it instantly in matlab. Can you help me ?
  1 个评论
Geoff Hayes
Geoff Hayes 2020-5-7
anil - you will need to post some of your code so we can get an idea of what you are attempting. Also,this isn't an answer to the original question so please delete and add as a comment or create your own question.

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