Converting polar coordinates to X,Y,Z for 3d plots

Hi all, I am rather new in matlab and I am trying to build some code that will help me draw three circle lines (with the same center). This is my first step in plotting measurements conducted in three measurement planes XY,YZ,and XZ that have to be displayed as a 3d plot.

Each of these three planes have associated a number and a degree. For simplification purposes we can assume that number being one. My first idea was to convert the polar coordinates I have (number,degree) to the equivalent X,Y,Z by the code below I wrote in matlab. Feel free to test it and help me find out why those three circles do not have the same center (0,0,0)

X1=turnPolarToX(1,1:360);
Y1=turnPolarToY(1,1:360);
Z1=ones(360);

X2=turnPolarToX(1,1:360);
Y2=ones(360);
Z2=turnPolarToY(1,1:360);

X3=ones(360);
Y3=turnPolarToX(1,1:360);
Z3=turnPolarToY(1,1:360);

plot3(X1,Y1,Z1)
hold on;
plot3(X2,Y2,Z2)
plot3(X3,Y3,Z3)
function d = degreeToRadian(degree)
    d = 0.01745329252*degree;
end

function t=turnPolarToX(Amplitude,Coordinate)
  t = Amplitude*cos(degreeToRadian(Coordinate))
end

function t=turnPolarToY(Amplitude,Coordinate)
 t = Amplitude*sin(degreeToRadian(Coordinate))
end

Thanks a lot for your help. Regards Alex

Answer 1

[Rik]

Is there a reason that you can't use the built-in pol2cart? If so, I'll have look at your actual code.

Answer 2

[KL]

Because you have ones(360) in all three cases. Change it to zeros(360) and all the circles will be oriented at the origin.