How to make circular Ring?
26 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
mk_ballav
am 14 Feb. 2015
Bearbeitet: Jeremy Simpson
am 14 Feb. 2015
i want to make a ring. I have two circles of smaller and bigger radius and I want to substract smaller circle from bigger circle to make a ring. Please help me.
I have the code attached here.
L = 40; % Length of rectangle W = 80; % Width of rectangle angle = 0:2*pi/360:2*pi; % Angle of bending C = [L/2 0]; % centre of circle Rin = 15; %radius of inner circle Rout = 1.2*Rin; % Radius of outer circle
%% - boundary of the structure --------------------------------- xv1 = [0 0 0 0 L L 0]; % co-ordinate of rectangle yv1 = [-W/2 -W/2 W/2 W/2 W/2 -W/2 -W/2]; % co-ordinate of rectangle inc = [Rin*cos(angle')+L/2 Rin*sin(angle')]; % co-ordinate of inner circle ouc = [Rout*cos(angle')+L/2 Rout*sin(angle')]; % co-ordinate of inner circle
figure(1);plot(xv1,yv1);axis equal tight;hold on; figure(1);plot(inc(:,1),inc(:,2));axis equal tight;hold on; figure(1);plot(ouc(:,1),ouc(:,2));axis equal tight;hold on
0 Kommentare
Akzeptierte Antwort
Weitere Antworten (1)
Jeremy Simpson
am 14 Feb. 2015
Bearbeitet: Jeremy Simpson
am 14 Feb. 2015
Try this script:
clear,clc
R = 3; %outer radius
r = 2; %inner radius
steps = 100;
theta = 0:2*pi/steps:2*pi;
r_outer = ones(size(theta))*R;
r_inner = ones(size(theta))*r;
rr = [r_outer;r_inner];
theta = [theta;theta];
xx = rr.*cos(theta);
yy = rr.*sin(theta);
zz = zeros(size(xx));
surf(xx,yy,zz)
It may or may not help. I wasn't really sure what you were wanting.
0 Kommentare
Siehe auch
Kategorien
Mehr zu Startup and Shutdown finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!