# How to plot two trajectories in Matlab?

조회 수: 17(최근 30일)
Sarah Hamdan 2020년 4월 29일
편집: Mrutyunjaya Hiremath 2020년 5월 2일
I'm trying to plot two different trajectories on the same plot, but it's not working and the graphs are sitting in the III and IV quadrant for some reason. Why Isn't it working?
T=[0:10:3000];
function [xa,ya]= trajectory(VoA,ThetaA,T,g)
%Use formula (3) for xa
xa=VoA*cosd(ThetaA)*T;
%Use formula (1) for ya
ya=(VoA*sind(ThetaA)*T)-(0.5*g*T.^2)+2000;
plot(xa,ya)
end
[xa,ya]= trajectory(VoA,ThetaA,T,g)
hold on
function [xb,yb]= trajectory(VoB,ThetaB,T,g)
%Use formula (1) for yb
yb=(VoB*sind(ThetaB))*T-(0.5*g*T.^2);
%Use formula (5) for xb
xb=xoa-(VoB*cosd(ThetaB)*T);
plot(xb,yb)
end
[xb,yb]= trajectory(VoB,ThetaB,T,g)
P= InterX([xa;ya],[xb;yb])
##### 댓글 수: 2표시숨기기 이전 댓글 수: 1
Mrutyunjaya Hiremath 2020년 4월 30일
@ Sarah Hamdan
Ok study the attached code.

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### 답변(1개)

Mrutyunjaya Hiremath 2020년 4월 29일
편집: Mrutyunjaya Hiremath 2020년 4월 29일
Hello Sarah Hamdan,
1. Don't paste code as a image, use option 'Insert aline code'
2. Don't 2 different function body with same function name .
3. Don't use both script and function in same file.
Here is the solution ...
% 521560-how-to-plot-two-trajectories-in-matlab
function MA521560
[xA, yA] = trackA;
plot(xA,yA);
hold on;
[xB, yB] = trackB;
plot(xB,yB);
P = InterX([xA;yA],[xB;yB]);
plot(xA,yA,xB,yB,P(1,:),P(2,:),'ro');
hold off;
end
function [xA, yA] = trackA
xA = randi(10,[1,10]);
yA = randi(10,[1,10]);
end
function [xB, yB] = trackB
xB = randi(10,[1,10]);
yB = randi(10,[1,10]);
end
Replace trackA and trackB function body with your code.
##### 댓글 수: 1표시숨기기 없음
Mrutyunjaya Hiremath 2020년 4월 29일
function [xa,ya] = trajectoryA(VoA,ThetaA,T,g)
%Use formula (3) for xa
xa = VoA*cosd(ThetaA)*T;
%Use formula (1) for ya
ya = (VoA*sind(ThetaA)*T)-(0.5*g*T.^2)+2000;
end

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