[Paraview] problems setting vtkDoubleArray with 3 components

[Burlen Loring]

try calling SetNumberOfComponents first, the memory is allocated in the 
call to SetNumberOfTuples

Natalie Happenhofer wrote:
> Hi!
> I´d like to set a vtkDoubleArray with 3 Components, it should be a 
> vector array, the code looks like this:
>
>
> vtkDoubleArray* momentum = vtkDoubleArray::New();
> momentum -> SetNumberOfTuples(numOfTuples);
> momentum -> SetNumberOfComponents(3);
>
> for(vtkIdType i = 0; i < numOfTuples; i++)
>     {double Tuple[3] = {xm_array -> GetValue(i), ym_array -> 
> GetValue(i), 0.0};
>
>      momentum -> InsertNextTuple(Tuple);
>     }
>
> Executing the code, I get the following error:
> " Point array Momentum with 3 components, has 78520 tuples but there 
> are only 58890 points"
>
> numOfTuples just has the value 58890, it should not be inserting more 
> tuples than that.. ?
>
> thx,
> Natalie
>
>
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