[vtkusers] get reference of point array in vtkPolyData

[Kyle Lutz]

You could use:

float *points = reinterpret_cast<float
*>(polyData->GetPoints()->GetVoidPointer(0));

Cheers,
Kyle

On Wed, Nov 14, 2012 at 7:15 AM, David Doria <daviddoria at gmail.com> wrote:
> On Wed, Nov 14, 2012 at 9:54 AM, abusq <albert.busque at gmail.com> wrote:
>>
>> Hi everyone, here's my question:
>> I have a polydata object with all my points and i would like to get the
>> reference of array containing the tuples/points.
>> Just like polydata->GetAllPoints(double **) or something...
>> Is it possible? and how?
>>
>> Thanks
>
>
> You can do something like this:
>
>
> #include <vtkSmartPointer.h>
>
> #include <vtkPoints.h>
>
>
> int main (int , char *[])
>
> {
>
>   vtkSmartPointer<vtkPoints> points =
>
>     vtkSmartPointer<vtkPoints>::New();
>
>
>   points->InsertNextPoint(1,2,3);
>
>   points->InsertNextPoint(4,5,6);
>
>
>   float* data = reinterpret_cast<float*>(points->GetVoidPointer(0));
>
>
>   for(unsigned int i = 0; i < 6; ++i)
>
>   {
>
>     std::cout << data[i] << " ";
>
>   }
>
>
>   std::cout << std::endl;
>
> }
>
>
> David
>
>
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