[vtkusers] Purpose of safedowncast()

[rahul indoria]

Hi All,
         I just want to ask, what is purpose of function safeDownCast(), as
it is not described ???



Looking forward your reply soon.

rahul indoria










On Thu, Jul 11, 2013 at 6:19 PM, Seth Gilchrist <seth at mech.ubc.ca> wrote:

> Hi Rahul,
> It seems that you want to provide x,y,z coordinates and get the index of
> the point back. Once you have the index, you can use polydata's
> "GetPointData" method to access the point data.
>
> To do this, you can use the vtkKdTreePointLocator which as methods like
> "FindClosestPoint", "FindNClosestPoints", and "FindPointsWithinRadius".
> There are a few examples of how to use this class at
> http://www.vtk.org/Wiki/VTK/Examples/Cxx#KD-Tree. There are other classes
> like vtkPointLocator, vtkOctreePointLocator which you can look at too.
>
> Cheers,
> Seth
>
> Seth Gilchrist, MASc, PhD Candidate
> +---------------------------------------+
> Orthopaedic and Injury Biomechanics Group
> UBC Department of Mechanical Engineering
> 6th Floor-2635 Laurel Street
> Vancouver, BC V5Z-1M9
> +---------------------------------------+
> seth at mech.ubc.ca
> Fax 604-675-2576
>



-- 
*Best  Regards
Rahul Indoria
Mobile No: +49-157-35652212*
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