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[求助]求教关于MATLAB的语句

UID ：55468

注册：2010-03-23
登录：2010-10-18
发帖：9
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0楼发表于: 2010-03-30 09:16:51

subplot(3,1,3),pcolor(hz');
shading flat;
caxis([-0.2 0.2]);
axis([1 ie 1 je]);
colorbar;
axis image;
axis off;
title(['Hz at time step = 0']);
rect=get(gcf,'Position');
rect(1:2)=[0 0];
M=moviein(nmax/4,gcf,rect);

请问蓝色部分的语句都是什么 ..

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离线yeahchao

UID ：43597

注册：2009-10-11
登录：2010-05-06
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1楼发表于: 2010-04-19 23:28:01

caxis([cmin cmax]) sets the color limits to specified minimum and maximum values. Data values less than cmin or greater than cmax map to cmin and cmax, respectively. Values between cmin and cmax linearly map to the current colormap.
moviein

moviein Initialize movie frame memory.
    moviein is no longer needed as of MATLAB Release 11 (5.3).
    In previous revisions, pre-allocating a movie increased
    performance, but there is no longer a need to pre-allocate
    movies. To create a movie, use something like the
    following example:

      for j=1:n
         plot_command
         M(j) = getframe;
      end
      movie(M)

    For code that is compatible with all versions of MATLAB,
    including versions before Release 11 (5.3), use:

      M = moviein(n);
      for j=1:n
         plot_command
         M(:,j) = getframe;
      end
      movie(M)

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