save graph in video

Question

Jonathan Demmer 2021-3-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/774622-save-graph-in-video

评论： Adam Danz 2021-3-17

Hi all,

My supervisor gave me this code. I modified it to make it work like i wnated. However i would like at the end of the code to save the video that has been created. Does someone know how to do that?

Thank you for your help

jonathan

clear all
close all
clc
cd('D:\Raw_data\Surface\Autumn\Lat_lon\');
addpath C:\Matlab_download\m_map1.4f\
load ('October_01_2014_surface_lat_##.mat');
load ('October_01_2014_surface_lon_##.mat');
lat1 = lat(4187,:);
lon1 = lon(4187,:);
X=lon1; 
Y=lat1; 
%day = M(a,2);
%month = M(a,3);
%year = M(a,4);
%hour = M(a,5);
%mins = M(a,6);
LNMIN = -5.8;%horizontal
LNMAX = -2.5;
LTMIN = 52.7; %vertical
LTMAX = 55;
m_proj('utm','lon',[LNMIN,LNMAX],'lat',[LTMIN,LTMAX],'zone',30,'hem',0,'ell','wgs84');
%%
clf;
m_gshhs_f('patch',[.7 .7 .7],'edgecolor',[.2 .2 .2]),hold all
m_grid('linestyle','none','box','fancy','tickdir','in','fontsize',11,'Fontname','Times New Roman');
set(gca,'tickdir','out','fontweight','bold','fontsize',15,'Fontname','Times New Roman');
% time step 1:
h1 = m_plot(X(1),Y(1),'.-b');
hold on
h2 = m_plot(X(1),Y(1),'or');
h3 = m_plot(X(1),Y(1),'^','color',[0 0.6 0],'linewidth',2);
%title(datestr(datenum(year(1),month(1),day(1),hour(1),mins(1),0)));
for it=2:length(lat1)
    
    lag = min([it,25]);
    
    delete(h1);
    delete(h2);
    
    h1 = m_plot(X(it-lag+1:it),Y(it-lag+1:it),'.-b');
    h2 = m_plot(X(it),Y(it),'or');
    
    % work out date and display it....
    %title(datestr(datenum(year(it),month(it),day(it),hour(it),mins(it),0)));
    
    drawnow
    pause(0.05)
end

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Answer 1

Image Analyst 2021-3-17

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/774622-save-graph-in-video#answer_650172

You can use exportgraphics() to save figures or axes. If you want an example of how to draw something in an axes and change it and make a movie out of it, check out my simple attached example.

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Jonathan Demmer 2021-3-17

Wow!! That is amazing!! Thank you so much!!!

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Answer 2

Adam Danz 2021-3-16

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/774622-save-graph-in-video#answer_649462

编辑：Adam Danz 2021-3-17

Use F=getframe() to store an image of the plot for each iteration of the for-loop. Save F to file if you want to replay the movie without re-collecting the frames.
Use movie(F,__) to play back the movie.