[vtkusers] How to access sequentially pointers of vtkPoints data (coordinates) ?

[pof]

ok,
this will do the job, though I dont' get it clear why successive calls 
to GetPoint(Id1) do not work.
Anyway, I got a solution now.
Thanks
JD

Michael Jackson a écrit :
> You might want to try:
>
> double* data = (double*)(points->GetData()->GetVoidPointer(0));
>
> This will give you the raw pointer to the start of the array. It is up 
> to you to now create a proper index into that array in order to work 
> with the data.
>
> _________________________________________________________
> Mike Jackson                  mike.jackson at bluequartz.net
> BlueQuartz Software                    www.bluequartz.net
> Principal Software Engineer                  Dayton, Ohio
>
>
>
> On Jan 17, 2009, at 7:54 AM, pof wrote:
>
>> Hello,
>>
>> I need to access (for further use outside of vtk frame) the pointers 
>> that hold the points data of of vtkPoints set.
>> So I try using vtkPoints::GetPoint(int id) that is supposed to return 
>> the pointer I am looking for.
>>
>> The problem is that I got something wrong at execution :
>> - if I call GetPoint(Id0) only once for a given Id, this is ok
>> - but then if I call GetPoint(Id1) a second time (or more) for 
>> another Id,  all the stored pointers are the same and point to coord 
>> vector of the last accessed point.
>> Here below is a small code that reproduce the problem.
>>
>> I'm obviously missing something but can't figure out what!
>> Does anybody has got an idea on the mistake I'm doing?
>>
>> Thanks
>> JD
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