[vtkusers] Pick point on vtkPlane

[Anka Kochanowska]

Hi!
Maybe this explanation written by Mark Wyszomierski (thanks Mark!) could
help:
http://devsample.org/index.php?option=com_content&task=view&id=48&Itemid=27
Anka



On Fri, Nov 6, 2009 at 9:17 AM, David Doria
<daviddoria+vtk at gmail.com<daviddoria%2Bvtk at gmail.com>
> wrote:

> On Fri, Nov 6, 2009 at 8:53 AM, superzz <jxdw_zlf at yahoo.com.cn> wrote:
>
>>
>> Hello
>> I am developping a volume rendering program.
>>
>> I'm using vtkInteractorStyleTrackballCamera as InteractorStyle and
>> vtkPlane
>> to cut volume. When user click the screen, my program needs to calculate
>> and
>> output the 3D intersection point to vtkPlane.
>>
>> I know how to do this in my XNA/directX program, but not familiar with the
>> corresponding API of VTK. Googled for more than 3 hours but finally failed
>> to find out what API should be used. Please help me.
>>
>> Thanks
>>
>> superZz
>>
>
> This is a very good question. I believe you have to add an observer or
> something? Here is the shell of an example of this:
> http://www.vtk.org/Wiki/Plane_Picking
>
> Can anyone make it output the coordinates of the point that is clicked?
>
> Thanks,
>
> David
>
>
>
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