pointers in object-oriented matlab programing

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Nathan Bblanc
Nathan Bblanc 2020-8-26
评论： Walter Roberson 2020-8-28
I want to create several objects that can "communicate with each other"
for instance, let's say i have a class called "child" and a class called "woman", and i want each child to have a property "mother" and each woman to have a property "children". these properties should contain some sort of pointer to the other objects, so that i can (for instance) add a function to the "woman" class named "feed_children" and i can go over all all her children and change some parameter.
is there a way to do this? i note here that i don't want to simply use some sort of structure, where the children are contained in a "struct" inside the "mother" object. i want all the objects to appear in the workspace and have independent existence, but to have some way of pointing at each other. i know that in many object oriented languages this is very easy to do
many thanks
i attach here my code if anyone is interested, the "TA_system" class is the mother (components are children) and a duct is a component.
  2 个评论
Walter Roberson
Walter Roberson 2020-8-27
MATLAB objects derived from "handle" class effectively use pointers.
Nathan Bblanc
Nathan Bblanc 2020-8-27
thank you for your answer walter, could you expand on that? i tried to read about handle objects before posting the question, my understanding was that they cannot do what i am tryind to do. could you explain how you would do what i asked uding handle objects?

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采纳的回答

Walter Roberson
Walter Roberson 2020-8-27
classdef woman < handle
properties
children = handle([]);
end
methods
function obj = woman
end
function addchild(obj, this_child)
obj.children(end+1) = this_child;
end
end
end
classdef child < handle
properties
mother = handle([]);
end
methods
function obj = child(this_mother)
obj.mother = this_mother;
addchild(this_mother, obj);
end
end
end
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Walter Roberson
Walter Roberson 2020-8-28
Yes, figuring out what actually want to do can be tough! And knowing when to stop designing can be hard!

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更多回答（1 个）

James Tursa
James Tursa 2020-8-27
MATLAB does not have variable pointers ... at least not in the sense of C/C++ like you are probably alluding to.

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