txt檔名的格式為e_field10.txt 、e_field20.txt ......e_field4000.txt .
記錄的乙個平面的場分布
% input the base file name
f = 'e_field';
% input the total number of iterations
n = 4000;
% input the value of time step
k = 10;
%input x axis label
xaxislabel = 'y';
%input y axis label
yaxislabel = 'x';
%input plot title
graphtitle = 'e field';
% index variable for movie
i = 1;
% movie initialization
m = moviein(n / k);
% loop n / k times
for m = k : k : n
% full file name
file = [f '_' int2str(m) '.txt'];
% load the file to a
a = load(file);
% pseudocolor plot
pcolor(a);
% a color bar
colorbar;
% set equal size tick marks
axis image;
% min & max value for color code
caxis([-1e-1 1e-1]);
% shading in interpolated format
shading interp;
% set label for x axis
xlabel(xaxislabel);
% set label for y axis
ylabel(yaxislabel);
% title of the plot
title([graphtitle, ' at time step = ', int2str(m)]);
% store the frame for movie
m(:, i) = getframe;
% increment movie frame index
i = i + 1;
% end of loop
end;
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