[vtkusers] How to use data type "double" with vtkPoints ??

[Sergio Andrés]

Hello all!

I am using vtkXMLPolyDataReader for reading and 
creating a new vtkPolyData from a .vtp file that I 
created by using vtkXMLPolyDataReader.

My problem is that I would like to use double as type 
of point coordinates, but when I read with 
vtkXMLPolyDataReader I always get a vtkPoints object 
whose data type is VTK_FLOAT, since float is the data 
type that is used by default when vtkPoints::New(); 
is called.

I know that if I use vtkPoints method 
"SetDataTypeToDouble()", the data type become 
double but the data is removed.

How could I read from a .vtp file an specify that the
data type is double???

Thanks in advance!!

Sergio.

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