matlab - 如何在同一 Canvas 上连续可视化matlab中的多个矩阵以制作视频？

Question

我需要类似 this 的东西，但是我有很多描述二维电场随时间变化的矩阵。所以我希望矩阵可视化相互替换，以获得视频

Answer 1

我想给您一个示例代码，用于从一系列绘图生成动画 gif。您可以修改绘图以生成您喜欢的任何内容；例如您链接中的那个。

gifOutputName = 'sample.gif';

%# As an example, let us draw a 3-D plot
%# You can generalize it to anything you like
Z = peaks; surf(Z);
axis tight
set(gca,'nextplot','replacechildren');
for j = 1:20
    surf(sin(2*pi*j/20)*Z,Z)

    %# Grab the current frame
    RGB = frame2im(getframe(gcf));

    %# Reduce it to 256 colors since it's gonna be GIf image
    [IND, map] = rgb2ind(RGB, 256);

    if j == 1 % Vreate in the first step

        %# 'LoopCount' indicates how many times the animation will play, 
        %# Inf states infinity. Refer to "GIF-Specific Parameters" in the 
        %# documentation.
        imwrite(IND, map, gifOutputName, 'gif', 'LoopCount', Inf);

    else %# Otherwise, append it to the previous
        imwrite(IND, map, gifOutputName, 'gif', 'WriteMode', 'append');
    end
end
close %# Close the figure

_{(来源:ismailari.com)}