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Matlab中绘制网格图和等高线：mesh 和 surf

2010-07-10 17:22:14| 分类： matlab学习 | 标签： |举报 |字号大中小订阅

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%author：huzhyi，2010-07-10

Matlab中绘制网状图、曲面图：mesh 和 surf

x=linspace(-2, 2, 25); % 在x轴上取25点

y=linspace(-2, 2, 25); % 在y轴上取25点

[xx,yy]=meshgrid(x, y); % xx和yy都是21x21的矩阵

zz=xx.*exp(-xx.^2-yy.^2); % 计算函数值，zz也是21x21的矩阵

surf(xx, yy, zz); % 画出立体曲面图

colorbar; %如下图，右边那个色卡

%mesh 和 surf还有其他扩展，如surfc、surfl、meshc、meshz等。

Matlab中绘制网格图和等高线：mesh 和 surf - Dream - 我的博客

Matlab中绘制等高线：contour

>> contour(xx,yy,zz)
>> colorbar

网状图与等高线同时绘制：surfc

>> surfc(xx,yy,zz)
>> colorbar

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