Colour depending on the radius of a cylinder.

The goal is to plot multiple cylinders as a mesh of points with imperfections of the radius, which are generated randomly through MCS. Nevertheless the surf plot assigns the colour according to the height of the points. For better visualization i would like the colour to be dependend on the delta of the radius from the perfect cylinder.

pxI and pyI are matrices with the dimensions (number of points of the circle, number of points along the height, number of simulations) that contain the coordinates including the imperfections of each point.

for i=1:5

figure()

pxI = pxS(:,:,i);

pyI = pyS(:,:,i);

surf(pxI,pyI,pz);

axis equal;

title('Imperfekter Zylinder','FontSize',14)

xlabel('x-Achse [m]','FontSize',14)

ylabel('y-Achse [m]','FontSize',14)

zlabel('z-Achse [m]','FontSize',14)

end

"perfect cylinder"

"imperfect cylinder"

[KSSV]

Attach you code which is used to plot the cyclinder (second one).

[Christoph Bethe]

That was the code for the second one

Answer 1

[KSSV]

Try:

 pxI = pxS(:,:,i);
 pyI = pyS(:,:,i);
 R = sqrt(pxI.^2+pyI.^2) ; 
 surf(pxI,pyI,pz,R);

[Christoph Bethe]

Thanks. I feel kinda stupid i couldn't find that out myself. But hey that will be an extra point for my homework. :)

[KSSV]

Thanks is accepting/ voting the answer. :)