matlab或Origin四维图怎么画(三维坐标+颜色值)
Posted
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了matlab或Origin四维图怎么画(三维坐标+颜色值)相关的知识,希望对你有一定的参考价值。
参考技术A用scatter3。
具体请看一下该函数的帮助,举的例子就是类似的用途,如下:
[x,y,z] = sphere(16);
X = [x(:)*.5 x(:)*.75 x(:)];
Y = [y(:)*.5 y(:)*.75 y(:)];
Z = [z(:)*.5 z(:)*.75 z(:)];
S = repmat([1 .75 .5]*10,prod(size(x)),1);
C = repmat([1 2 3],prod(size(x)),1);
scatter3(X(:),Y(:),Z(:),S(:),C(:),'filled'), view(-60,60)
扩展资料:
Matlab包含控制语句、函数、数据结构、输入和输出和面向对象编程特点。用户可以在命令窗口中将输入语句与执行命令同步,也可以先编写好一个较大的复杂的应用程序(M文件)后再一起运行。新版本的MATLAB语言是基于最为流行的C++语言基础上的,因此语法特征与C++语言极为相似,而且更加简单,更加符合科技人员对数学表达式的书写格式。
使之更利于非计算机专业的科技人员使用。而且这种语言可移植性好、可拓展性极强,这也是MATLAB能够深入到科学研究及工程计算各个领域的重要原因。
参考资料来源:百度百科-MATLAB
- 官方服务
- 官方网站官方网站
matlab画三维空间劣弧,matlab 三维空间画图总结
matlab 三维画图总结
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.csdn.net/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.csdn.net/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.csdn.net/nuptboyzhb/ figure(3)');%标题
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=num+1;
subplot(2,3,num);
surf(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.csdn.net/nuptboyzhb/ figure(4)');%标题
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=num+1;
subplot(2,3,num);
meshz(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.csdn.net/nuptboyzhb/ figure(5)');%标题
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=num+1;
subplot(2,3,num);
surf(X,Y,Z);
hold on;
stem3(X,Y,Z,'r');%画竖线
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.csdn.net/nuptboyzhb/ figure(6)');%标题
2.画矩阵的三维图
clc;
clear all;
close all;
X=[0 1 2 3 4 5 6 7 8 9];
Y=[0 1 2 3 4 5 6 7 8 9];
for i=1:1:length(X)
for j=1:1:length(Y)
Z(i,j)=mod(i*j*rand(1),9);
end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=0;
num=num+1;
subplot(2,3,num);
plot3(X,Y,Z);
axis([0 9 0 9 0 9]);%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.csdn.net/nuptboyzhb/ figure(1)');%标题
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=num+1;
subplot(2,3,num);
mesh(X,Y,Z);
axis([0 9 0 9 0 9]);%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.csdn.net/nuptboyzhb/ figure(2)');%标题
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=num+1;
subplot(2,3,num);
meshc(X,Y,Z);
axis([0 9 0 9 0 9]);%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.csdn.net/nuptboyzhb/ figure(3)');%标题
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=num+1;
subplot(2,3,num);
surf(X,Y,Z);
axis([0 9 0 9 0 9]);%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.csdn.net/nuptboyzhb/ figure(4)');%标题
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=num+1;
subplot(2,3,num);
meshz(X,Y,Z);
axis([0 9 0 9 0 9]);%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.csdn.net/nuptboyzhb/ figure(5)');%标题
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
num=num+1;
subplot(2,3,num);
surf(X,Y,Z);
hold on;
stem3(X,Y,Z,'r');%画竖线
axis([0 9 0 9 0 9]);%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.csdn.net/nuptboyzhb/ figure(6)');%标题
3.画矩阵的颜色深度图
我自己编写的一个函数:graycolor.m
%filename:graycolor.m
%郑海波 2013-01-31
%http://blog.csdn.net/nuptboyzhb/
%原理:灰度图像的伪彩色处理
%值越大,显示的颜色越蓝,越小,显示的颜色越红!
%参数:newbuf必须使二维数组或矩阵
function graycolor(newbuf);
min_n=min(min(newbuf));
max_n=max(max(newbuf));
newbuf=newbuf./(max_n-min_n)*255;
[M N]=size(newbuf);
for i=1:1:M
for j=1:1:N
R(i,j)=GrayColorR(newbuf(i,j));
G(i,j)=GrayColorG(newbuf(i,j));
B(i,j)=GrayColorB(newbuf(i,j));
end
end
img(1:1:M,1:1:N,1)=R(1:M,1:N);
img(1:1:M,1:1:N,2)=G(1:M,1:N);
img(1:1:M,1:1:N,3)=B(1:M,1:N);
imshow(uint8(img));
function r=GrayColorR(gray)
r=0;
if gray>=170
r=255;
end
if gray>=128&&gray<=170
r=255/42*(gray-128);
end
return;
function g=GrayColorG(gray)
g=0;
if gray>=84&&gray<=170
g=255;
end
if gray<=84
g=255/84*gray;
end
if gray>=170&&gray<=255
g=255/85*(255-gray);
end
return;
function b=GrayColorB(gray)
b=0;
if gray<=84
b=255;
end
if gray>=84&&gray<=128
b=255/44*(128-gray);
end
return;
函数的调用:
[X,Y]=meshgrid(-2:0.01:2,-2:0.01:2);%生成坐标轴
Z=2*X.*exp(-X.^2-Y.^2)+1;%Z是X,Y的函数
graycolor(Z);
title('http://blog.csdn.net/nuptboyzhb/');%标题
另外,在\\matlab2009a\\toolbox\\matlab\\demos\\graf3d.m中文件,有更加详细的介绍。界面如下:
以上是关于matlab或Origin四维图怎么画(三维坐标+颜色值)的主要内容,如果未能解决你的问题,请参考以下文章