plotting in time domain - update plot

Question

Richard 2012-12-9

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/56109-plotting-in-time-domain-update-plot

I'm working through an example I saw online concerning vertical motion under gravity. The following code and plot shows the outcome:

% Vertical motion under gravity example
g = 9.81;
u = 60;
t = 0:0.1:12.3; % time in seconds
for i = 1:length(t);
    s = (u.*t(i))-(g.*t(i).^2)./ 2;
    plot(t(i),s);
    xlim([0 14]);
    ylim([0 200]);
    hold on;
    drawnow
    title('Vertical motion under gravity');
    xlabel('time');
    ylabel('vertical displacement');
end

Is it possible to alter this so that instead of having the points shown for each iteration I could have a line plot where as the loop continuous, the line extends in time? Hope this makes sense.

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Answer 1

Azzi Abdelmalek 2012-12-9

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/56109-plotting-in-time-domain-update-plot#answer_67957

在 MATLAB Online 中打开

g = 9.81;
u = 60;
t = 0:0.1:12.3; % time in seconds
for i = 1:length(t);
  s(i)= (u.*t(i))-(g.*t(i).^2)./ 2;
  plot(t(i),s(i));
  xlim([0 14]);
  ylim([0 200]);
  hold on;
  drawnow
  title('Vertical motion under gravity');
  xlabel('time');
  ylabel('vertical displacement');
end
figure
plot(t,s)