Call a function in an m-file from a method of a handle class

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Ahmed Hossam
Ahmed Hossam 2017-4-6
评论： Ahmed Hossam 2017-4-6
I would like to know, if the object, which is being created with the help of the (handle) class methods, would also be visible for modifications in a function called from a method of the (handle) class, even if I don't pass the object itself to that function?
If the object is visible to the function called in a class method, so I can just work with it from the function using it's name from the class itself (using the name of the "constructor function")?
Or must I pass the object to the function called in the class method?...
Thank you for your answer in advance!
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Ahmed Hossam
Ahmed Hossam 2017-4-6
编辑：Ahmed Hossam 2017-4-6
I just would like to have the Implementation of the class methods outside of the class so that the class looks clean and tidy without so many code lines inside it

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Guillaume
Guillaume 2017-4-6
编辑：Guillaume 2017-4-6
A method operating on objects of a class must have the object as its first input in matlab. (In other languages, e.g C++, this first parameter is automatically added by the compiler).
However, you can separate the methods of a class into different files. See this page for the details. Basically, create a folder named @yourclassname, populate this folder with at least yourclassname.m which can just contain the class definition. You can implement the methods either in yourclassname.m or in separate files in the same @ folder. Either way, the first input of the method must be the class object.

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Adam
Adam 2017-4-6
编辑：Adam 2017-4-6
If you don't pass the object in then it has to be a static function and has knowledge of the class only, not the specific object. You can define class functions in separate files, although I can't remember what you need to do, I've never wanted to do it myself. It is mentioned somewhere in the large pdf file on Matlab OOP though (Section 5-2 seems to cover this)
  2 个评论
Ahmed Hossam
Ahmed Hossam 2017-4-6
Is it weird to define each method of a class in a separate file? What is common practice here?
Guillaume
Guillaume 2017-4-6
It's not weird. I do it sometimes when the class are complex. It is much easier to locate a particular file than scroll through 1000s of lines in a single file.

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