[vtkusers] zoom in on a specific point

[Jesús Spí­nola]

Hi,

I amb also interested in a zoom-to-point behaviour. Have you achieved what
you were looking for, Jonathan? What has been your approach?

I'm just playing with vtkRenderWindowInteractor::FlyToImage() but it's not
enough for me by now. It would be great if you can share your improvements
with the community ;)

On Wed, Oct 20, 2010 at 6:54 PM, Jonathan Morra <jonmorra at gmail.com> wrote:

> Thanks, I'll have a look.
>
>
> On Wed, Oct 20, 2010 at 9:53 AM, Jothy <jothybasu at gmail.com> wrote:
>
>> I think you should look into vtkInteractorStyleImage source.
>>
>> Go to vtk git.
>>
>> Jothy
>>
>>
>> On Wed, Oct 20, 2010 at 5:45 PM, Jonathan Morra <jonmorra at gmail.com>wrote:
>>
>>> This actually works backwards for me, but I think that's because my
>>> camera is flipped.  Where is the source for this, I might be able to just
>>> implement it correctly for me myself.
>>>
>>> But this is the idea that I had.
>>>
>>>
>>> On Wed, Oct 20, 2010 at 9:40 AM, Jothy <jothybasu at gmail.com> wrote:
>>>
>>>> Click which about which point you wan tot zoom, then press"F" key.
>>>>
>>>> Jothy
>>>>
>>>> On Wed, Oct 20, 2010 at 5:36 PM, Jonathan Morra <jonmorra at gmail.com>wrote:
>>>>
>>>>> I have a vtkImageViewer2 that I wish to zoom in on.  I have applied
>>>>> the vtkInteractorStyleImage to the image, and I can zoom using the right
>>>>> mouse button.  However, this always zooms in on the center of the image.
>>>>>  I'd like to center the zoom on the location that the mouse was initially
>>>>> clicked on.  Does anyone have an example of how to do this?
>>>>>
>>>>> Thanks
>>>>>
>>>>> PS I'm working in Java
>>>>>
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>>>
>>
>
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-- 
Jesús Spínola
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