[ITK] [ITK-dev] Question about itkLightObject vs itkObject

[Rashad M]

Hi all,

I have some doubts about the usage of itkLightObject. The situation is I
need to have a simple class and it must has Smart pointers and macro
definitions as in itk class. This class does not involve image inputs and
not a filter type. So I decided to go with itkLightObject for the base
class.

>From the documentation of itkLightObject[1]. It says:

All ITK objects should be a subclass of
LightObject<http://www.itk.org/Doxygen/html/classitk_1_1LightObject.html>
 or Object <http://www.itk.org/Doxygen/html/classitk_1_1Object.html> with
few exceptions (due to performance concerns).

Could any explain me the few exceptions concerning performance?

[1] http://www.itk.org/Doxygen/html/classitk_1_1LightObject.html

-- 
Regards,
   Rashad
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