Animation of Circle angle rotation using MATLAB -

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i have circle , partition circle 3 sector(120 angle each).now want increase angle 50 degree 1 part , decrease 50 degree part , keep constant third part (like 170 degree first part,70 degree second , 120 degree third).i want make animation whole process using matlab.

how can this? if have source code process using matlab, helps me much.

i draw circle , divide 3 equal sectors , polt points circle.here, attached following code:

x0=2;    y0=1;     r=1;     teta=-pi:0.01:pi;     x=r*cos(teta)+x0     y=r*sin(teta)+y0     plot(x,y)     hold on     scatter(x0,y0,'or')     axis square   %---------------------------------------- % divide circle n sectors  n=3     tet=linspace(-pi,pi,n+1)     xi=r*cos(tet)+x0     yi=r*sin(tet)+y0     k=1:numel(xi)         plot([x0 xi(k)],[y0 yi(k)])         hold on         p1=[1.5,0.4];        p2=[2,0.8];         p3=[2.5,0.2];         p4=[2.5,1];        p5=[1.5,1.6];         p6=[1.5,0.8];         p7=[2,1.2];         p8=[2,1.4];         p9=[1.6,0.7];         p10=[2.5,0.6];         p11=[2.7,0.5];         p12=[2,0.9];     p=[p1;p2;p3;p4;p5;p6;p7;p8;p9;p10;p11;p12]';          plot(p(1,:),p(2,:),'go')     end

the following code produce want. simplified of code , added comments sections. parameters can set @ top. script create movie file circle_anim.mp4 can viewed outside matlab.

% set options x0 = 2;     % origin x-coordinate y0 = 1;     % origin y-coordinate r  = 1;     % radius of circle n  = 3;     % number of pieces m  = 50;    % movement of separator in radians (+acw / -cw) ts = 3;     % target separator (1...n) fs = 30;    % frame rate in fps t  = 2;     % duration in seconds s  = t*fs;  % movement step count  % predefined points -> [x1,x2,xn;y1,y2,yn] p = [ 1.5, 2.0, 2.50, 2.5, 1.5, 1.5, 2.0, 2.0, 1.6, 2.5, 2.7, 2.0;       0.4, 0.8, 0.20, 1.0, 1.6, 0.8, 1.2, 1.4, 0.7, 0.6, 0.5, 0.9];  % calculate circle theta = -pi:0.01:pi;     cirx = r*cos(theta) + x0;     ciry = r*sin(theta) + y0;  % initial plot figure; hold on; axis square; plot(x0,y0,'or');           % origin plot(cirx,ciry);            % circle plot(p(1,:),p(2,:),'go');   % predefined points  % calculate , plot separations ciro = linspace(-pi,pi,n+1); k = 1:(numel(ciro)-1)     ph(k) = plot([x0,x0+r*cos(ciro(k))],[y0,y0+r*sin(ciro(k))]); %#ok<sagrow> end  % vary target separator , create frames clearvars myframes; movo = linspace(ciro(ts),ciro(ts)+(m/180*pi),s); k = 1:numel(movo)     set(ph(ts), 'xdata', [x0,x0+r*cos(movo(k))]);     set(ph(ts), 'ydata', [y0,y0+r*sin(movo(k))]);     myframes(k) = getframe;  %#ok<sagrow> end  % write frames video mymovie = videowriter('circle_anim.mp4','mpeg-4'); mymovie.framerate = fs; open(mymovie); k = 1:length(myframes)     writevideo(mymovie,myframes(k)); end close(mymovie);

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