save referenced "places" of an object

Hi, i have objects of a class "Point" and objects of a class "Vector". Both subclasses of handle. Points will be referenced/stored as objects in vector-objects.

For example:

>> vector_a.x=Point_1_X
>> vector_a.y=Point_1_Y 
>> vector_a.z=Point_1_Z

and so on with way more points and vectors.

My question is: Points can be referenced in different vectors. And i'd like to store the name of the vector objects, where points get referenced.

In the example:

After saying

>> vector_a.x=Point_1_X

the string "vector_a" should get stored automatically in the property of Point

>> Point_1_X.contained 
     ans = 'vector_a'

So, later, all points have to know (in their property "contained") in which vectors they are referenced.

How can I do that? Is there an built-in or a smart way to do that?

_

Thanks for your help. Hope i explained the question properly.

Answer 1

[Matt J]

You can overload the class' subsasgn method and use the INPUTNAME command there to get the string 'vector_a'. However, you will have to decide what to do when the assignment is to an object that does not have a name, as for example, when you do

    vector_a{1}.x=whatever

[Konstantin]

Thanks Matt. I didn't knew neither subsasgn nor Inputname, so I will try them out.

Your mentioned example, won't happen in my case, because the size of the objects is allways 1x1 so the vectors have allways a unique name. vector_a, vector_b, vector_asdf...

Thanks again