How can I rotate a point in 3D?

Hello,

I have a point which I want to rotate using this 2 angles: alpha=-9,3(degrees) and beta=-0,5(degrees). I have to do this in Matlab 3D. I've tried to use "rotate" but it didn't worked. If someone can help, let me know.

the point is indicated by the arrow

this is the my code:

figure
x1=[0 52.7 106.3 158.8 1.97 54.87 108.87 162.07];
y1=[0 0 0 0 12.14 12.14 12.14 12.14];
z1=[0 0 0 0 0 0 0 0];

x2=[-18.1 -18.1 -20 -20 176.4 176.4 180 180];
y2=[-4.5 51 -4.5 51 -5.1 51.2 -5.1 49.2];
z2=[27.83 27.83 42.33 42.33 25.8 25.8 40.1 40.1];

plot3(x1,y1,z1,'ro','markersize',9.140,'markerfacecolor','r');
hold on
plot3(x2,y2,z2,'bo','markersize',9.140,'markerfacecolor','b'); 

grid
xlim([-40 200]);
ylim([-40 80]);
zlim([-20 60]);
xlabel('x');
ylabel('y');
zlabel('z');
legend('Barrette','Barriere')

Thank you

Answer 1

[Star Strider]

I don’t understand what you want to do, but the cart2sph function will probably let you do it.

[Alexandra Stan]

Ok. I will try the cart2shp function. Thank you

[Star Strider]

After you map the point to spherical coordinates and rotate it, then use the sph2cart function to map it back so you can plot it with the rest of your data.