How to create a movie?

Question

Rajawarman Thiruselvam 2021-7-8

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/874868-how-to-create-a-movie

回答： Bhavya Chopra 2021-7-8

Hi everyone!! i have a code for animated line, here how to create a movie for this program??

clear all
close all
clc
figure
h1=animatedline('linewidth',3,'color','[0 0 0.5]');
h2=animatedline('linewidth',3,'color','[1 0.5 0]');
axis([0 71 1 20])
axis ij
grid on
x1 =0:71;
n=100;
xx1=linspace(x1(1),x1(end),n);
y1=[1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1];
yy1=interp1(x1,y1,xx1);
y2=[2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3];
yy2=interp1(x1,y2,xx1);
for ci=1:n
    addpoints(h1,xx1(ci),yy1(ci));
    addpoints(h2,xx1(ci),yy2(ci));
pause(0.05);
drawnow
end

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Bhavya Chopra 2021-7-8

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/874868-how-to-create-a-movie#answer_742948

在 MATLAB Online 中打开

I understand that you want to save your animated plot as a video. The program can be modified as follows to save the plot:

outputVideo = VideoWriter(fullfile(pwd, 'plot_movie.avi'));    % Create VideoWriter object
outputVideo.FrameRate = 20;                                    % Set frame rate for corresponding pause duration
open(outputVideo)
for ci=1:n
    addpoints(h1,xx1(ci),yy1(ci));
    addpoints(h2,xx1(ci),yy2(ci));
    pause(0.05);
    drawnow
    img = getframe                  % Obtain figure as movie frame
    writeVideo(outputVideo, img);   % Write image to video
end
close(outputVideo)                  % Close video file