Adding imported image as texture to 2D patch

Hello,

I have these x,y,z coordinates to create a circular sector (pizza slice shape):

theta=7*pi/18:pi/40:28*pi/45;

x=[1.8235 0.172*cos(theta)+1.8235 1.8235];

y=[0.75 0.172*sin(theta)+0.75 0.75];

z=3*ones(1,12);

I have an imported image (jpg/png) and I want it to appear on this patch. An image of an example of what I mean is attached here.

How can this be done?

I read about the function "imread", and the use of the "surface" function, but didn't manage to accomplish what I am aiming for.

Answer 1

[Harikrishnan Balachandran Nair]

From my Understanding, you are having an issue in adding an imported image as texture to a circular sector. Using surf function allows you to add texture to your surface, by giving the imported image as the fourth input , and setting the ‘FaceColor’ Property to ‘texture’. To define a circular sector surface, you can calculate the points inside the sector and use it as the grid. You can refer to the following code.

k=0:pi/32:pi/4; 
p=0:0.1:1; 
X=ones(numel(k),numel(p)); 
Y=ones(numel(k),numel(p)); 
for i=1:numel(k) 
    for j=1:numel(p) 
         
X(i,j)=p(j)*cos(k(i)); 
Y(i,j)=p(j)*sin(k(i)); 
    end 
end 
Z=3*ones(numel(k),numel(p)); 
i=imread('image.jpg'); 
surf(X,Y,Z,i,'FaceColor','texture','EdgeColor','none'); 

[Noam Azulay]

Thank you! It worked perfectly