2D plot to 3D Graph
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Hello, This is my 2D Plot and I can't figure out how to turn the Red curve into a 3D Plot or what the Z coordinate would even be for it. I would really appreciate some help. Here is my code for the red curve:
Receptive_Field = GME(s, sigE) - (0.5*GMI(s, sigI));
plot(s, Receptive_Field, 'r')
function E = GME(s,sigE)
E = exp(-1*(s.^2)/(2*sigE^2));
end
function I = GMI(s,sigI)
I = exp(-1*(s.^2)/(2*sigI^2));
end
采纳的回答
darova
2020-4-3
I made a simple example for you
x = 0:10;
y = sin(x)+2;
t = linspace(0,2*pi,30);
[T,Y] = meshgrid(t,y);
[~,X] = meshgrid(t,x);
[Z,Y] = pol2cart(T,Y);
surf(X,Y,Z,'facecolor','none')
line(x,y,'linewidth',3)
axis vis3d
Is this what are you looking for?
6 个评论
Nicole Mezher
2020-4-3
darova
2020-4-3
This is function i choosed (use yours instead)
x = 0:10;
y = sin(x)+2;
I know that if rotate something should be an angle. I shoosed t (eg 
)
)t = linspace(0,2*pi,30);
I want to rotate about X axis (it stays unchanged). I assumed that y plays role of radius
So we have x, y=r and t. We need a mesh to build a surface
[T,R] = meshgrid(t,y); % generate mesh for angle and radius
[~,X] = meshgrid(t,x); % generate mesh for X only
All data is prepared (X,T and R). It's in polar system of coordinates. All we need to do is to convert it cartesian
[Z,Y] = pol2cart(T,R); % convert angle and radius to cartesian system
Final part
surf(X,Y,Z,'facecolor','none') % create rotated object
line(x,y,'linewidth',3) % add thick line (original data in XY plane)
axis vis3d % adjust axes so they don't change
- Did you know what you wanted it to be?
Sure i do. Do you? Do you have any questions?
Nicole Mezher
2020-4-3
darova
2020-4-3
So you need to rotate about Z axis?
Nicole Mezher
2020-4-3
darova
2020-4-3
Maybe another way. Here is my first script
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