MATLAB: How to stop ode45 using events function

eventsode45

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

Best Answer

function [value,isterminal,direction]=EndEvents(t,var)
instead of
function [value,isterminal,direction]=EndEvents(t,vardot)
Best wishes
Torsten.
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