MATLAB 4D（3D +彩色）剧情动画 [英] MATLAB 4D (3d + color) plot with animation

问题描述

我有3套30个数据点的X，Y，Z。我想提出的第四维度的颜色。不过，我想用第四维是不同的长度比我X，Y，Z（133比30）。

I have 3 sets of 30 data points X,Y,Z. I would like to make the 4th dimension color. However the 4th dimension I want to use is a different length than my X,Y,Z (133 vs 30).

这是一个问题，使用MATLAB中scatter3功能时，如颜色尺寸必须X的大小相匹配，Y，Z。

This is a problem when using the scatter3 function in MATLAB, as the color dimension must match the size of X,Y,Z.

我也想为电影进展.AVI格式动画这个阴谋，并有第四维（彩色）的变化。

I also want to animate this plot in .avi format, and have the 4th dimension (color) change as the movie progresses.

在此先感谢。

推荐答案

创建2D或3D矩阵来定义你的颜色：如果你使用的颜色索引到的颜色映射，或者3D，如果你想给RGB值的2D

Create a 2D or 3D matrix to define your colors: 2D if you use colors indexed into the colormap, or 3D if you want to give RGB values.

X=1:30;Y=randperm(30);Z=ones(size(X));
voltage_matrix = ...; %# 30 by 133 
cdata = voltage_matrix;
handle = scatter3(X,Y,Z);

colormap('jet')
set(gca,'clim',[min(voltage_matrix) max(voltage_matrix)])

for t=1:size(cdata,2) %# 1 to 133
    set(handle, 'cdata', cdata(:,t));
    pause(.1)
end

编辑：注意颜色表和斧头CLIM属性。

note the colormap and axes 'clim' property.

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