[vtkusers] Changing vtkScalars - virtual function

[John Biddiscombe]

Lookup vtkCellLocator, it's an Octree and probably does what you
want.

Note that the approach used is to create an object whiuch
references data in a spatial manner, rather than store the
original data in a spatial structure (a la Octree). It is a bit
odd to start with, but once you get used to it, you'll find its a
nice system.

John B


----- Original Message -----
From: Ronaldo Mercado <rmercado at dmu.ac.uk>
To: <vtkusers at public.kitware.com>
Sent: Friday, June 23, 2000 9:00 PM
Subject: [vtkusers] Changing vtkScalars - virtual function


>
>
> Any recomendation against making member functions virtual?
>
> Details:
> I am in the process of creating an implementation of an octree
class,
> which I called vtkOctree, as a subclass of vtkStructuredPoints.
> I realised that it would be convenient for me to create
> a scalars subclass vtkOctreeScalars and for that class I would
> need vtkScalars::GetScalars to become virtual
>
>
> Maybe I'm in this trouble because I'm subclassing my octree
class
> from structured points and I should create a different dataset
> class altogether.
>
> I'd be glad to receive your input.
> Anybody implemented octrees out there?
>
>
> ===========
> R. Mercado - redhat at newton.rex.dmu.ac.uk
> Inst. of Simulation Sciences.
> De Montfort University, Leicester UK.
>
>
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