trying to create objects in a for loop

2 vues (au cours des 30 derniers jours)
jeff wu
jeff wu le 31 Mar 2012
hi, i get an error but i dont understand why this isnt working
liste = [node(1,2)]%;subdiv(xkoord);
for i=2:4
liste(i+1) = node(1,2)%;subdiv(xkoord);
end
classdef node
properties
x;
y;
bearing=0;
end % properties
methods
function obj = node(x,y)
obj.x=x;
obj.y=y;
end%functions
end%methods
end %class
??? Input argument "x" is undefined.
Error in ==> node>node.node at 9 obj.x=x;
at the second call in the for it crashes
thanks for help

Réponses (1)

Jim Hokanson
Jim Hokanson le 31 Mar 2012
Matlab is trying to construct space for the object before you actually construct the object. In other words, Matlab is calling your constructor without any input arguments. If you add the following to your constructor call and you should be fine
if nargin == 0
return
end

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