could you please tell me how to plot 2 objects with different velocity

1 view (last 30 days)
clear all;
close all;
clc;
vA = [2.31; -0.55]; % initial velocity OF 1
dt = 0.1; % time step for animation.
t = 0:dt:10 ;
% get points trajectory
pA = zeros(2,length(t)+1) ;
pA(:,1) = [4 ;10] ; % initial position
for i = 2:length(t)+1 % t is time variable
% plot(pA(1),pA(2),'ro') % Plot circle
pA(:,i) = pA(:,i-1) + vA*dt; % update position
%pB(:,i) = pB(:,i-1) + vB*dt; % update position
end
%plot
figure
title('Motion animation');
%xlabel('x (m)');
%ylabel('y (m)');
h = plot(pA(1,2),pA(1,1),'cs') ;
%h = plot(pB(1,1),pB(1,2),'gp') ;
axis([min(pA(2,:)) max(pA(2,:)) min(pA(1,:)) max(pA(1,:)) ])
for i = 1:length(pA)
set(h,'XData',pA(1,i),'YData',pA(2,i))
%set(h,'XData',pB(1,i),'YData',pB(2,i))
pause(.5)
end
this is the code for a single object moving with constant velocity,anyone explain how to create two objects with same velocity?

Accepted Answer

KSSV
KSSV on 7 Aug 2019
close all;
clc;
vA = [2.31; -0.55]; % initial velocity OF 1
vB = [2.31; -0.55]; % initial velocity OF 1
dt = 0.1; % time step for animation.
t = 0:dt:10 ;
% get points trajectory
pA = zeros(2,length(t)+1) ;
pA(:,1) = [4 ;10] ; % initial position
pB = zeros(2,length(t)+1) ;
pB(:,1) = [2 ;8] ; % initial position
for i = 2:length(t)+1 % t is time variable
% plot(pA(1),pA(2),'ro') % Plot circle
pA(:,i) = pA(:,i-1) + vA*dt; % update position
pB(:,i) = pB(:,i-1) + vB*dt; % update position
end
%plot
figure
title('Motion animation');
%xlabel('x (m)');
%ylabel('y (m)');
x = [pA(1,2) ; pB(1,2)] ;
y = [pA(1,1) ; pB(1,1)] ;
h = plot(x,y,'s') ;
%h = plot(pB(1,1),pB(1,2),'gp') ;
axis([min(pA(2,:)) max(pA(2,:)) min(pA(1,:)) max(pA(1,:)) ])
for i = 1:length(pA)
x = [pA(1,i) ; pB(1,i)] ;
y = [pA(1,i) ; pB(1,i)] ;
set(h,'XData',x,'YData',y)
%set(h,'XData',pB(1,i),'YData',pB(2,i))
pause(.5)
end

More Answers (0)

Categories

Find more on Animation in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!