[vtkusers] vtkImageToStructuredPoints

[Amy Squillacote]

Jon Luisi wrote:
> Amy Squillacote wrote:
>> No, you don't need to cast it. vtkImageData is a subclass of 
>> vtkDataObject.
>> - Amy
>>
>> Jon Luisi wrote:
>>> For the VtkImageToStructuredPoints SetInput documentation calls for 
>>> vtkImageData.
>>> In code vtkImageAlgorithm::SetInput(vtkDataObject*)
>>>
>>> I am trying to add the input from a vtkImageReader reader->GetOutput()
>>> Do I need to recast the vtkImageData from the reader to a 
>>> vtkDataObject, and if so what is the best method?
>>> Jon
>>>
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>>
> When I try just connecting the input I get this error
> error C2664: 'void vtkImageAlgorithm::SetInput(vtkDataObject *)' : 
> cannot convert parameter 1 from 'vtkImageData *' to 'vtkDataObject *'
> 1>        Types pointed to are unrelated; conversion requires 
> reinterpret_cast, C-style cast or function-style cast
>
> do I need to change this line of code?
>        vtkImageToStructuredPoints *i2sp = 
> vtkImageToStructuredPoints::New();
>        i2sp->SetInput(reader->GetOutput());
>
>

As indicated in the VTK FAQ 
(http://www.vtk.org/Wiki/VTK_FAQ#The_C.2B.2B_compiler_cannot_convert_some_pointer_type_to_another_pointer_type_in_my_little_program), 
you need to add the following line of code.

#include "vtkImageData.h"


- Amy


-- 
Amy Squillacote                    Phone: (256) 726-4839
Computer Scientist                 Fax: (256) 726-4806
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