[vtkusers] questions about renderwindow size

[Lin M]

Hi David,

1) I'm using Win 8.1 pro
2) VTK version 5.10.1
3) It returned 692, 492 if I set size to 700, 500

Thank you.

On Tue, Oct 28, 2014 at 11:53 AM, David Gobbi <david.gobbi at gmail.com> wrote:

> Hi Lin,
>
> Calling Render() should not change the window size, and in fact if it did,
> then many of the nightly VTK tests would fail.  This means that there must
> be something different about your computer as compared to the computers
> that are used to test VTK.  So, the more information that you can provide
> about your system, the better!
>
> 1) What operating system are you using (be as specific as possible)?
> 2) What version of VTK are you using?
> 3) What size did GetSize() return?  The exact numbers can be useful
>   in figuring out what is causing the problem.
> 4) If possible, run "ctest" to test your VTK for other problems.
>
>  - David
>
>
> On Mon, Oct 27, 2014 at 9:39 PM, Lin M <majcjc at gmail.com> wrote:
>
>> Hi guys,
>>
>> I met a problem which confused me. I tried to specify the window size by
>> myself. But when I checked it later, the GetSize() always returned a value
>> a little bit different from what I set before. I put the code below. I only
>> called the renderwin to Render() before I checked the window size. It seems
>> the Render() changes the window size. But I don't get why is that. Does
>> anyone can help me about that? Thanks very much!
>>
>> vtkSmartPointer< vtkRenderWindow > _imgRenderWin = vtkSmartPointer<
>> vtkRenderWindow >::New();
>> int _size[2] = { 700, 500 };
>> _imgRenderWin->SetSize(_size);
>> _imgRenderWin->AddRenderer(_renderer);
>> _imgRenderWin->Render();
>> int *_dim;
>> _dim = _imgRenderWin->GetSize();
>> int _dimx = _dim[0];
>> int _dimy = _dim[1];
>>
>> Best,
>> Lin
>>
>
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