[vtkusers] Need help loading image from memory

[Hossein Nazem]

dear joachim
thanks again
your suggestion motivated me to search more and i find vtkIntArray to use
instead of vtkDataArray

vtkIntArray* da = vtkIntArray::New();

it seems the problem is solved till now everything is ok
hossein



On Wed, Jan 30, 2013 at 9:35 PM, Hossein Nazem <hossein.nazem at gmail.com>wrote:

> dear joachim
> thanks a lot for your response but if i use this:
>
> vtkDataArray* da = vtkDataArray::New();
>
> then i have a compile error :
>
> error C2440: 'initializing' : cannot convert from 'vtkObject *' to
> 'vtkDataArray *'
>
>
>
>
>
> On Wed, Jan 30, 2013 at 6:12 PM, Joachim Pouderoux <
> joachim.pouderoux at kitware.com> wrote:
>
>> Hi,
>>
>>
>> da = 0;
>> da->SetVoidArray(buffer,512*512*295,1);
>>
>> For sure it crashes!  :)
>> Why do you set da = 0 ? Instead you mush create the vtkDataArray :
>> da = vtkDataArray::New();
>>
>> Joachim
>>
>> 2013/1/30 Hossein Nazem <hossein.nazem at gmail.com>
>>
>>>  hi all
>>> i'm trying to load a volume from memory by means of setvoidarray.
>>> its a 3d array of int (512*512*295) and i use vs2012 win7 x64.
>>> there is no compile error but in run time when i trace program to
>>> the line"da->SetVoidArray(buffer,512*512*295,1);" (by F10 or F11) ,
>>> tracing terminate!
>>> nothing happen and no runtime error!
>>> any help is appreciated
>>> here is my code:
>>>
>>> void rendering::LoadFromMemory(INT16 buffer[512][512][295], int width,
>>> int height, int slices, double voxelsizeX, double voxelsizeY, double
>>> voxelsizeZ, double originX, double originY, double originZ)
>>> {
>>>         input = 0;
>>>         if (!input)
>>>         {
>>>                 input = vtkImageData::New();
>>>         }
>>>         vtkDataArray* da ;
>>>         da = 0;
>>>         da->SetVoidArray(buffer,512*512*295,1);
>>>         input->GetPointData()->SetScalars(da);
>>>         input->SetDimensions(width, height, slices);
>>>         input->SetSpacing(voxelsizeX, voxelsizeY, voxelsizeZ);
>>>         input->SetOrigin(originX, originX, originZ);
>>> }
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>>
>>
>>
>> --
>> *Joachim Pouderoux*
>>
>> *PhD, R&D Enginee*r
>> *Kitware SAS <http://www.kitware.fr>*
>>
>>
>
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