matlab 三维画图总结

最新推荐文章于 2025-04-06 17:56:00 发布

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最新推荐文章于 2025-04-06 17:56:00 发布

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分类专栏： matlab

本文链接：https://blog.youkuaiyun.com/nupt123456789/article/details/8560721

本文总结了使用MATLAB进行三维图形绘制的三种方法：1) 绘制由函数定义的三维图；2) 绘制矩阵形成的三维图；3) 利用颜色深度展示矩阵的三维效果。同时，分享了一个自编的graycolor.m函数及其调用方式，并提及MATLAB自带的graf3d.m示例文件，提供了更丰富的三维绘图教程。

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1.画函数的三维图，如：Z(X,Y)=2*X.*exp(-X.^2-Y.^2)+1;

close all;
[X,Y]=meshgrid(-2:0.5:2,-2:0.5:2);%生成坐标轴
Z=2*X.*exp(-X.^2-Y.^2)+1;%Z是X,Y的函数
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=0;
num=num+1;
subplot(2,3,num);
plot3(X,Y,Z);
axis([-3 3 -3 3 0 2]);%限定显示的范围
xlabel('x轴');%x轴坐标
ylabel('y轴');%y轴坐标
zlabel('z轴');%z轴坐标
title('http://blog.youkuaiyun.com/nuptboyzhb/   figure(1)');%标题
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=num+1;
subplot(2,3,num);
mesh(X,Y,Z);
axis([-3 3 -3 3 0 2]);%限定显示的范围
xlabel('x轴');%x轴坐标
ylabel('y轴');%y轴坐标
zlabel('z轴');%z轴坐标
title('http://blog.youkuaiyun.com/nuptboyzhb/   figure(2)');%标题
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=num+1;
subplot(2,3,num);
meshc(X,Y,Z);
axis([-3 3 -3 3 0 2]);%限定显示的范围
xlabel('x轴');%x轴坐标
ylabel('y轴');%y轴坐标
zlabel('z轴');%z轴坐标
title('http://blog.youkuaiyun.com/nuptboyzhb/   figure(3)');%标题
%%%%%%%%%%%%%%%%%%%%%%%%%%%