How to fill different faces with different colors

Question

雪明邓 2021-12-10

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1607980-how-to-fill-different-faces-with-different-colors

回答： Pavan Sahith 2024-2-12

clear;

[X Y]=meshgrid(10:10:1000);

ind1=find(X<=Y&0<Y&Y<=400&X>0);%索引行和列

ind2=find(X<=Y&Y>400&X>0);

ind3=find(X>Y+70&0<Y&Y<=400&X>0);

ind4=find(Y+70>=X&X>Y&0<Y&Y<=400&X>0);

ind5=find(X>Y+70&Y>400&X>0);

ind6=find(Y+70>=X&Y>400&X>Y&X>0);

P=zeros(100);

P(ind1)=2973.29*X(ind1)-97.44*Y(ind1);

P(ind2)=5773.29*X(ind2) - 3067.69*Y(ind2)+ 80077.78;

P(P==0)=NaN;

P(ind3)=-1895.48*X(ind3)+ 4783.77*Y(ind3)+ 303479.50;

P(ind4)=2726.84*X(ind4)+ 161.4 图 4*Y(ind4)- 20083.0;

P(ind5)=-1895.48*X(ind5)+ 4583.77*Y(ind5)+ 383479.50;

P(ind6)=2726.85*X(ind6)- 40.0*Y(ind6)+ 60494.78;

mesh(X,Y,P);

the code is as above

and how could i fill different faces with different colors?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Pavan Sahith 2024-2-12

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1607980-how-to-fill-different-faces-with-different-colors#answer_1406831

在 MATLAB Online 中打开

Hello,

I see that you're exploring how to assign different colors to various faces in a mesh plot.

A straightforward way to achieve this is by utilizing the 'Facecolor' property of the mesh object.

Below is a snippet of MATLAB code that you can integrate into your existing code to enhance your mesh plot with distinct face colors:

figure;
mesh(X, Y, P);
colormap jet;
% Set face colors
cdata = zeros(size(P));
cdata(ind1) = 1;
cdata(ind2) = 2;
cdata(ind3) = 3;
cdata(ind4) = 4;
cdata(ind5) = 5;
cdata(ind6) = 6;
set(mesh(X, Y, P), 'FaceColor', 'flat', 'CData', cdata);
colorbar;
xlabel('X');
ylabel('Y');

In this code,

The 'cdata' matrix is created to assign different colors to different faces of the mesh plot.
The 'cdata' matrix is set as the 'CData' property of the mesh object.
The 'FaceColor' property is set to 'flat' to use the assigned colors for each face.