How to stop ode45 using events function

I'm trying to stop an ode45 solver when the altitude gets below a certain value, but it isn't working.

The code is below - I want to stop it when r gets to 10 km. I don't want to use an rdot value (vardot(1)=rdot).

tRange=[0,350];

var=[r;lat;long;u;v;w;e0;e1;e2;e3;omegaX;omegaY;omegaZ]

opts=odeset('Events',@EndEvents,'InitialStep',1e-6,'RelTol',1e-5);

[t,vardot]=ode45(@Trajectory,tRange,var,opts)

function [value,isterminal,direction]=EndEvents(t,vardot)

value = (var(1)-10000);

isterminal=1;

direction=0;

end

Answer 1

[Torsten]

function [value,isterminal,direction]=EndEvents(t,var)

instead of

function [value,isterminal,direction]=EndEvents(t,vardot)

Best wishes

Torsten.

[Lisa Peacocke]

Thank you!