How do I hold the second to last image of the simulation?
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Allison Bushman
on 10 Dec 2018
Answered: Image Analyst
on 10 Dec 2018
hold on
axis equal
axis off
b = 0:pi/40:pi/4;
c = 0:pi/20:pi/2;
P4vct=nan(numel(b),2);
for k = 1:numel(b)
P1=[-15,0];
P2=[-5,0];
plot([P1(1) P2(1)],[P1(2) P2(2)],'LineWidth',5,'Color','black');
A=[0,0];
h{1} = viscircles(A,5,'LineWidth',2,'Color','black');
B = A+[10*cos(b(k)-pi/4),10*sin(b(k)-pi/4)];
h{2} = viscircles(B,5,'LineWidth',2,'Color','green');
C = B+[10*cos(c(k)-pi/2),10*sin(c(k)-pi/2)];
h{3} = viscircles(C,5,'LineWidth',2,'Color','blue');
P3=C+[5*cos(c(k)-(pi/2)),5*sin(c(k)-(pi/2))];
P4=C+[15*cos(c(k)-(pi/2)),15*sin(c(k)-(pi/2))];
h{4} = plot([P3(1) P4(1)],[P3(2) P4(2)],'LineWidth',5,'Color','black');
P4vct(k,:) = P4;
h{5} = plot(P4vct(:,1),P4vct(:,2), '--','LineWidth',3,'Color','blue');
drawnow();
pause(0.5);
delete(vertcat(h{1:4}));
end
hold off
axis equal
axis off
2 Comments
Walter Roberson
on 10 Dec 2018
"hold" it in what sense? You want the last two frames to be displayed on top of each other at the end, but during the main part of the loop only one frame is to be displayed at a time??
Accepted Answer
Image Analyst
on 10 Dec 2018
At the bottom of the loop, only call delete() if it's not the last one:
if k < numel(b)
delete(vertcat(h{1:4}));
end
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