Save the quiver plot as a video

Question

Karthik Brs 2015-11-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/258212-save-the-quiver-plot-as-a-video

评论： Karthik Brs 2015-12-1

Variables.mat

Hello, I am trying to save the quiver plot as a .avi movie. I am including my code here:

      hFig = figure;  
      subplot(1,2,1);
      set(hFig, 'Position', [0 0 1000 1000]);  % to define Figure Properties
      stlgeometrie=stlread('gehause_Bmuster.stl');
      geoplot(stlgeometrie);
      axis([-200 200 -200 200 -200 200]);
      view([0 0]);
      hold on;
      subplot(1,2,2);
      set(hFig, 'Position', [0 0 1000 1000]);  % to define Figure Properties
      stlgeometrie=stlread('gehause_Bmuster.stl');
      geoplot(stlgeometrie);
      axis([-200 200 -200 200 -200 200]);
      view([60 0]);
      hold on;
for e = 1:length(range);
      a=0.1;
    subplot(1,2,1);
      q1 = quiver3(x,y,z, a*mag_X(21,:)'.*cos(Ph_X(21,:)'+range(e)), a*mag_Y(21,:)'.*cos(Ph_Y(21,:)'+range(e)), a*mag_Z(21,:)'.*cos(Ph_Z(21,:)'+range(e)),0,'MarkerSize',3,'LineWidth',1.5,'MaxHeadSize',0.1);
     subplot(1,2,2);
      q2 = quiver3(x,y,z, a*mag_X(21,:)'.*cos(Ph_X(21,:)'+range(e)), a*mag_Y(21,:)'.*cos(Ph_Y(21,:)'+range(e)), a*mag_Z(21,:)'.*cos(Ph_Z(21,:)'+range(e)),0,'MarkerSize',3,'LineWidth',1.5,'MaxHeadSize',0.1);
      M{e} = getframe;
      Fz(e) = mag_Z(100,1)'.*cos(Ph_Z(100,1)'+range(e));
      delete(q1);
      delete(q2);
  end
  movie(cell2mat(M));
  movie2avi(cell2mat(M),'MyMovie.avi','Compression','None');

When I use the following code, I can only see the video of second sub-plot and the video doesn't contain the video, but just a image of the second sub-plot. I just want to save the video which gets displayed because of the quiver command. I am also attaching my workspace variables with this query! Thank you in advance!

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

Walter Roberson 2015-11-30

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/258212-save-the-quiver-plot-as-a-video#answer_201704

在 MATLAB Online 中打开

M{e} = getframe(gcf);

Note: this will capture the entire figure, including window decorations. getframe() captures an axes or a figure, but you are creating multiple axes so you need to save the figure.

5 个评论
显示 3更早的评论隐藏 3更早的评论

Karthik Brs 2015-12-1

编辑：Walter Roberson 2015-12-1

在 MATLAB Online 中打开

myVideo.zip

Thank you again for ur time. But the code still doesn't work. I am attaching the video file which I am getting after altering my code according to yours. You can try and run the code if you wish. The workspace variables can be found in the original attachment.

% Quiver vector field animation
        hFig = figure;  
        set(hFig, 'Position', [0 0 2000 2000]);  % to define Figure Properties
        stlgeometrie=stlread('gehause_Bmuster.stl');
        geoplot(stlgeometrie);
        axis([-200 200 -200 200 -200 200]);
        view([0 0]);
        hold on;
    for e = 1:length(range);
    q1 = quiver3(x,y,z, a*mag_X(21,:)'.*cos(Ph_X(21,:)'+range(e)), a*mag_Y(21,:)'.*cos(Ph_Y(21,:)'+range(e)), a*mag_Z(21,:)'.*cos(Ph_Z(21,:)'+range(e)),0,'MarkerSize',3,'LineWidth',1.5,'MaxHeadSize',0.1);
    M(e) = getframe(gca);
    delete(q1);
    end
    fps = 15;  %to match movie2avi
    v = VideoWriter('MyMovie.avi', 'Uncompressed AVI', 'FrameRate', fps);
    open(v);
    writeVideo(v, M);
    close(v);