[vtkusers] implementing New() in vtk subclasses..

K. R. Subramanian krs at cs.uncc.edu
Sun Jul 1 18:58:05 EDT 2001


A simple question.. I am subclassing a  vtk classes, and I would like
to write a constructor, similar to New(). I notice New() creates
instances from an
object factory (which I must confess I know very little about!).  In any
case, the instance
call takes a string argument - is this part of  a library of names used
within VTK, or is this
something the user supplies to id the object?

In any case, in subclasses, what is the preferred method to create
objects?  Right now,
I am just using the C++ new operator, which I believe  is not
recommended for creating vtk objects..
I know you can call the superclass's (which is the vtk object) New()
constructorwithin the
constructor of the subclass, but what do I do with the return value?

Thanks.

    -- krs

--
Dr. K.R.Subramanian                           Phone: (301) 402-0042
National Institutes of Health                 FAX:   (301) 402-4080
National Library of Medicine                  Email: krs at cs.uncc.edu
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