Too many output arguments.

Question

Jacob O. Otasowie 2020-4-8

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/516403-too-many-output-arguments

评论： Srivardhan Gadila 2020-4-22

COMMUNITY.m

Hello people, I need some help with the error below:

Error using SpringendBallsB04>groundHeight
Too many output arguments.
 
Error in SpringendBallsB04>impactMap (line ...)
 [~,groundSlope] = groundHeight(horizPos);
 
Error in SpringendBallsB04 (line ...)
        [IC, ballRolling]= impactMap(impactState,P);   %This becomes the new start state

HERE IS A PART OF THE PROGRAM. THE FUNKTION CALLED impactMap BELOW THE MAIN CODE MIGHT BE THE PROBLEM.

I AM TRYING TO MAKE A 3D SIMULATION OUT OF A 2D CODE

PLEASE HELP ME

[code attached as a file by Madhan Ravi since it was too long]

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Answer 1

Srivardhan Gadila 2020-4-11

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/516403-too-many-output-arguments#answer_425314

在 MATLAB Online 中打开

The function z = groundHeight(x,y) in line 314 has only one output argument z and two input arguments x & y. You are calling this function in line 379 inside the function [stateOut, ballRolling] = impactMap(stateIn,P) as

[~,groundSlope] = groundHeight(horizPos);

Change it to

groundSlope = groundHeight(horizPos,2ndInputArgument);

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Jacob O. Otasowie 2020-4-11

Here is an excerpt from the directly affected part of the programm.

%% dynFunc = @(t,X,Y)Ball_Dynamics(t,X,Y,P); %Handle for the dynamics function

dynFunc = @(t,X)Ball_Dynamics(t,X,P); %Handle for the dynamics function

TermCond = 'Termination Condition: Max Bounces'; %For display only

%Loop through each section of the trajectory

for bounceNum=1:maxBounce

%% Run the dynamics until bounce or out of time

Tspan = [tNow,tEnd];

sol = ode45(dynFunc,Tspan,IC,P.Options); %events defined in Options

%% Store the state immediately before the collision

impactState = sol.y(:,end);

%% Solve the collision

[IC, ballRolling]= impactMap(impactState,P); %This becomes the new start state

tNow = sol.x(end); %Grab the last time

Trajectory{bounceNum}=sol; %Store the output of ode45

%% Check exit condition

if tEnd <= tNow

TermCond = 'Termination Condition: Max Time';

break

elseif ballRolling

TermCond = 'Termination Condition: Ball started rolling';

break

end

Jacob O. Otasowie 2020-4-22

THanks @Srivardhan Gadila

Srivardhan Gadila 2020-4-22

Refer to the following MATLAB Answers:

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Too many output arguments.

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